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Added Llama3-8b model

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LICENSE ADDED
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1
+ META LLAMA 3 COMMUNITY LICENSE AGREEMENT
2
+ Meta Llama 3 Version Release Date: April 18, 2024
3
+
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+ “Agreement” means the terms and conditions for use, reproduction, distribution and modification of the
5
+ Llama Materials set forth herein.
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+
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+ “Documentation” means the specifications, manuals and documentation accompanying Meta Llama 3
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+ distributed by Meta at https://llama.meta.com/get-started/.
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+
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+ “Licensee” or “you” means you, or your employer or any other person or entity (if you are entering into
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+ this Agreement on such person or entity’s behalf), of the age required under applicable laws, rules or
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+ regulations to provide legal consent and that has legal authority to bind your employer or such other
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+ person or entity if you are entering in this Agreement on their behalf.
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+
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+ “Meta Llama 3” means the foundational large language models and software and algorithms, including
16
+ machine-learning model code, trained model weights, inference-enabling code, training-enabling code,
17
+ fine-tuning enabling code and other elements of the foregoing distributed by Meta at
18
+ https://llama.meta.com/llama-downloads.
19
+
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+ “Llama Materials” means, collectively, Meta’s proprietary Meta Llama 3 and Documentation (and any
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+ portion thereof) made available under this Agreement.
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+
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+ “Meta” or “we” means Meta Platforms Ireland Limited (if you are located in or, if you are an entity, your
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+ principal place of business is in the EEA or Switzerland) and Meta Platforms, Inc. (if you are located
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+ outside of the EEA or Switzerland).
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+
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+ By clicking “I Accept” below or by using or distributing any portion or element of the Llama Materials,
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+ you agree to be bound by this Agreement.
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+
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+ 1. License Rights and Redistribution.
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+
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+ a. Grant of Rights. You are granted a non-exclusive, worldwide, non-transferable and royalty-free
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+ limited license under Meta’s intellectual property or other rights owned by Meta embodied in the Llama
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+ Materials to use, reproduce, distribute, copy, create derivative works of, and make modifications to the
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+ Llama Materials.
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+
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+ b. Redistribution and Use.
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+
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+ i. If you distribute or make available the Llama Materials (or any derivative works
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+ thereof), or a product or service that uses any of them, including another AI model, you shall (A) provide
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+ a copy of this Agreement with any such Llama Materials; and (B) prominently display “Built with Meta
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+ Llama 3” on a related website, user interface, blogpost, about page, or product documentation. If you
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+ use the Llama Materials to create, train, fine tune, or otherwise improve an AI model, which is
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+ distributed or made available, you shall also include “Llama 3” at the beginning of any such AI model
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+ name.
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+
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+ ii. If you receive Llama Materials, or any derivative works thereof, from a Licensee as part
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+ of an integrated end user product, then Section 2 of this Agreement will not apply to you.
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+
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+ iii. You must retain in all copies of the Llama Materials that you distribute the following
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+ attribution notice within a “Notice” text file distributed as a part of such copies: “Meta Llama 3 is
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+ licensed under the Meta Llama 3 Community License, Copyright © Meta Platforms, Inc. All Rights
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+ Reserved.”
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+
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+ iv. Your use of the Llama Materials must comply with applicable laws and regulations
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+ (including trade compliance laws and regulations) and adhere to the Acceptable Use Policy for the Llama
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+ Materials (available at https://llama.meta.com/llama3/use-policy), which is hereby incorporated by
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+ reference into this Agreement.
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+
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+ v. You will not use the Llama Materials or any output or results of the Llama Materials to
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+ improve any other large language model (excluding Meta Llama 3 or derivative works thereof).
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+
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+ 2. Additional Commercial Terms. If, on the Meta Llama 3 version release date, the monthly active users
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+ of the products or services made available by or for Licensee, or Licensee’s affiliates, is greater than 700
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+ million monthly active users in the preceding calendar month, you must request a license from Meta,
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+ which Meta may grant to you in its sole discretion, and you are not authorized to exercise any of the
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+ rights under this Agreement unless or until Meta otherwise expressly grants you such rights.
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+
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+ 3. Disclaimer of Warranty. UNLESS REQUIRED BY APPLICABLE LAW, THE LLAMA MATERIALS AND ANY
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+ OUTPUT AND RESULTS THEREFROM ARE PROVIDED ON AN “AS IS” BASIS, WITHOUT WARRANTIES OF
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+ ANY KIND, AND META DISCLAIMS ALL WARRANTIES OF ANY KIND, BOTH EXPRESS AND IMPLIED,
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+ INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OF TITLE, NON-INFRINGEMENT,
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+ MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. YOU ARE SOLELY RESPONSIBLE FOR
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+ DETERMINING THE APPROPRIATENESS OF USING OR REDISTRIBUTING THE LLAMA MATERIALS AND
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+ ASSUME ANY RISKS ASSOCIATED WITH YOUR USE OF THE LLAMA MATERIALS AND ANY OUTPUT AND
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+ RESULTS.
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+
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+ 4. Limitation of Liability. IN NO EVENT WILL META OR ITS AFFILIATES BE LIABLE UNDER ANY THEORY OF
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+ LIABILITY, WHETHER IN CONTRACT, TORT, NEGLIGENCE, PRODUCTS LIABILITY, OR OTHERWISE, ARISING
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+ OUT OF THIS AGREEMENT, FOR ANY LOST PROFITS OR ANY INDIRECT, SPECIAL, CONSEQUENTIAL,
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+ INCIDENTAL, EXEMPLARY OR PUNITIVE DAMAGES, EVEN IF META OR ITS AFFILIATES HAVE BEEN ADVISED
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+ OF THE POSSIBILITY OF ANY OF THE FOREGOING.
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+
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+ 5. Intellectual Property.
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+
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+ a. No trademark licenses are granted under this Agreement, and in connection with the Llama
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+ Materials, neither Meta nor Licensee may use any name or mark owned by or associated with the other
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+ or any of its affiliates, except as required for reasonable and customary use in describing and
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+ redistributing the Llama Materials or as set forth in this Section 5(a). Meta hereby grants you a license to
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+ use “Llama 3” (the “Mark”) solely as required to comply with the last sentence of Section 1.b.i. You will
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+ comply with Meta’s brand guidelines (currently accessible at
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+ https://about.meta.com/brand/resources/meta/company-brand/ ). All goodwill arising out of your use
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+ of the Mark will inure to the benefit of Meta.
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+
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+ b. Subject to Meta’s ownership of Llama Materials and derivatives made by or for Meta, with
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+ respect to any derivative works and modifications of the Llama Materials that are made by you, as
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+ between you and Meta, you are and will be the owner of such derivative works and modifications.
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+
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+ c. If you institute litigation or other proceedings against Meta or any entity (including a
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+ cross-claim or counterclaim in a lawsuit) alleging that the Llama Materials or Meta Llama 3 outputs or
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+ results, or any portion of any of the foregoing, constitutes infringement of intellectual property or other
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+ rights owned or licensable by you, then any licenses granted to you under this Agreement shall
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+ terminate as of the date such litigation or claim is filed or instituted. You will indemnify and hold
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+ harmless Meta from and against any claim by any third party arising out of or related to your use or
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+ distribution of the Llama Materials.
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+
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+ 6. Term and Termination. The term of this Agreement will commence upon your acceptance of this
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+ Agreement or access to the Llama Materials and will continue in full force and effect until terminated in
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+ accordance with the terms and conditions herein. Meta may terminate this Agreement if you are in
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+ breach of any term or condition of this Agreement. Upon termination of this Agreement, you shall delete
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+ and cease use of the Llama Materials. Sections 3, 4 and 7 shall survive the termination of this
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+ Agreement.
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+
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+ 7. Governing Law and Jurisdiction. This Agreement will be governed and construed under the laws of
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+ the State of California without regard to choice of law principles, and the UN Convention on Contracts
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+ for the International Sale of Goods does not apply to this Agreement. The courts of California shall have
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+ exclusive jurisdiction of any dispute arising out of this Agreement.
README.md DELETED
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- ---
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- license: apache-2.0
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- ---
 
 
 
 
USE_POLICY.md ADDED
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1
+ # Meta Llama 3 Acceptable Use Policy
2
+
3
+ Meta is committed to promoting safe and fair use of its tools and features, including Meta Llama 3. If you
4
+ access or use Meta Llama 3, you agree to this Acceptable Use Policy (“Policy”). The most recent copy of
5
+ this policy can be found at [https://llama.meta.com/llama3/use-policy](https://llama.meta.com/llama3/use-policy)
6
+
7
+ ## Prohibited Uses
8
+
9
+ We want everyone to use Meta Llama 3 safely and responsibly. You agree you will not use, or allow
10
+ others to use, Meta Llama 3 to:
11
+
12
+ 1. Violate the law or others’ rights, including to:
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+ 1. Engage in, promote, generate, contribute to, encourage, plan, incite, or further illegal or unlawful activity or content, such as:
14
+ 1. Violence or terrorism
15
+ 2. Exploitation or harm to children, including the solicitation, creation, acquisition, or dissemination of child exploitative content or failure to report Child Sexual Abuse Material
16
+ 3. Human trafficking, exploitation, and sexual violence
17
+ 4. The illegal distribution of information or materials to minors, including obscene materials, or failure to employ legally required age-gating in connection with such information or materials.
18
+ 5. Sexual solicitation
19
+ 6. Any other criminal activity
20
+ 2. Engage in, promote, incite, or facilitate the harassment, abuse, threatening, or bullying of individuals or groups of individuals
21
+ 3. Engage in, promote, incite, or facilitate discrimination or other unlawful or harmful conduct in the provision of employment, employment benefits, credit, housing, other economic benefits, or other essential goods and services
22
+ 4. Engage in the unauthorized or unlicensed practice of any profession including, but not limited to, financial, legal, medical/health, or related professional practices
23
+ 5. Collect, process, disclose, generate, or infer health, demographic, or other sensitive personal or private information about individuals without rights and consents required by applicable laws
24
+ 6. Engage in or facilitate any action or generate any content that infringes, misappropriates, or otherwise violates any third-party rights, including the outputs or results of any products or services using the Llama Materials
25
+ 7. Create, generate, or facilitate the creation of malicious code, malware, computer viruses or do anything else that could disable, overburden, interfere with or impair the proper working, integrity, operation or appearance of a website or computer system
26
+
27
+ 2. Engage in, promote, incite, facilitate, or assist in the planning or development of activities that present a risk of death or bodily harm to individuals, including use of Meta Llama 3 related to the following:
28
+ 1. Military, warfare, nuclear industries or applications, espionage, use for materials or activities that are subject to the International Traffic Arms Regulations (ITAR) maintained by the United States Department of State
29
+ 2. Guns and illegal weapons (including weapon development)
30
+ 3. Illegal drugs and regulated/controlled substances
31
+ 4. Operation of critical infrastructure, transportation technologies, or heavy machinery
32
+ 5. Self-harm or harm to others, including suicide, cutting, and eating disorders
33
+ 6. Any content intended to incite or promote violence, abuse, or any infliction of bodily harm to an individual
34
+
35
+ 3. Intentionally deceive or mislead others, including use of Meta Llama 3 related to the following:
36
+ 1. Generating, promoting, or furthering fraud or the creation or promotion of disinformation
37
+ 2. Generating, promoting, or furthering defamatory content, including the creation of defamatory statements, images, or other content
38
+ 3. Generating, promoting, or further distributing spam
39
+ 4. Impersonating another individual without consent, authorization, or legal right
40
+ 5. Representing that the use of Meta Llama 3 or outputs are human-generated
41
+ 6. Generating or facilitating false online engagement, including fake reviews and other means of fake online engagement
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+
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+ 4. Fail to appropriately disclose to end users any known dangers of your AI system
44
+
45
+ Please report any violation of this Policy, software “bug,” or other problems that could lead to a violation
46
+ of this Policy through one of the following means:
47
+
48
+ ● Reporting issues with the model: [https://github.com/meta-llama/llama3](https://github.com/meta-llama/llama3)
49
+ ● Reporting risky content generated by the model:
50
+ developers.facebook.com/llama_output_feedback
51
+ ● Reporting bugs and security concerns: facebook.com/whitehat/info
52
+ ● Reporting violations of the Acceptable Use Policy or unlicensed uses of Meta Llama 3:
53
+ LlamaUseReport@meta.com
config.json ADDED
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+ {
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+ "architectures": [
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+ "LlamaForCausalLM"
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+ ],
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+ "auto_map": {
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+ "AutoConfig": "configuration_llama.LlamaConfig",
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+ "AutoModelForCausalLM": "modeling_llama.LlamaForCausalLM"
8
+ },
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+ "attention_bias": false,
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+ "attention_dropout": 0.0,
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+ "bos_token_id": 128000,
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+ "eos_token_id": 128001,
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+ "hidden_act": "silu",
14
+ "hidden_size": 4096,
15
+ "initializer_range": 0.02,
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+ "intermediate_size": 14336,
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+ "max_position_embeddings": 8192,
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+ "model_type": "llama",
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+ "num_attention_heads": 32,
20
+ "num_hidden_layers": 32,
21
+ "num_key_value_heads": 8,
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+ "pretraining_tp": 1,
23
+ "rms_norm_eps": 1e-05,
24
+ "rope_scaling": null,
25
+ "rope_theta": 500000.0,
26
+ "tie_word_embeddings": false,
27
+ "torch_dtype": "bfloat16",
28
+ "transformers_version": "4.40.0.dev0",
29
+ "use_cache": false,
30
+ "vocab_size": 128256
31
+ }
configuration_llama.py ADDED
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+ # coding=utf-8
2
+ # Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
5
+ # and OPT implementations in this library. It has been modified from its
6
+ # original forms to accommodate minor architectural differences compared
7
+ # to GPT-NeoX and OPT used by the Meta AI team that trained the model.
8
+ #
9
+ # Licensed under the Apache License, Version 2.0 (the "License");
10
+ # you may not use this file except in compliance with the License.
11
+ # You may obtain a copy of the License at
12
+ #
13
+ # http://www.apache.org/licenses/LICENSE-2.0
14
+ #
15
+ # Unless required by applicable law or agreed to in writing, software
16
+ # distributed under the License is distributed on an "AS IS" BASIS,
17
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18
+ # See the License for the specific language governing permissions and
19
+ # limitations under the License.
20
+ """ LLaMA model configuration"""
21
+
22
+ from transformers.configuration_utils import PretrainedConfig
23
+ from transformers.utils import logging
24
+
25
+
26
+ logger = logging.get_logger(__name__)
27
+
28
+ class LlamaConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of a [`LlamaModel`]. It is used to instantiate an LLaMA
31
+ model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
32
+ defaults will yield a similar configuration to that of the LLaMA-7B.
33
+
34
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
35
+ documentation from [`PretrainedConfig`] for more information.
36
+
37
+
38
+ Args:
39
+ vocab_size (`int`, *optional*, defaults to 32000):
40
+ Vocabulary size of the LLaMA model. Defines the number of different tokens that can be represented by the
41
+ `inputs_ids` passed when calling [`LlamaModel`]
42
+ hidden_size (`int`, *optional*, defaults to 4096):
43
+ Dimension of the hidden representations.
44
+ intermediate_size (`int`, *optional*, defaults to 11008):
45
+ Dimension of the MLP representations.
46
+ num_hidden_layers (`int`, *optional*, defaults to 32):
47
+ Number of hidden layers in the Transformer decoder.
48
+ num_attention_heads (`int`, *optional*, defaults to 32):
49
+ Number of attention heads for each attention layer in the Transformer decoder.
50
+ num_key_value_heads (`int`, *optional*):
51
+ This is the number of key_value heads that should be used to implement Grouped Query Attention. If
52
+ `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
53
+ `num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
54
+ converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
55
+ by meanpooling all the original heads within that group. For more details checkout [this
56
+ paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
57
+ `num_attention_heads`.
58
+ hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
59
+ The non-linear activation function (function or string) in the decoder.
60
+ max_position_embeddings (`int`, *optional*, defaults to 2048):
61
+ The maximum sequence length that this model might ever be used with. Llama 1 supports up to 2048 tokens,
62
+ Llama 2 up to 4096, CodeLlama up to 16384.
63
+ initializer_range (`float`, *optional*, defaults to 0.02):
64
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
65
+ rms_norm_eps (`float`, *optional*, defaults to 1e-06):
66
+ The epsilon used by the rms normalization layers.
67
+ use_cache (`bool`, *optional*, defaults to `True`):
68
+ Whether or not the model should return the last key/values attentions (not used by all models). Only
69
+ relevant if `config.is_decoder=True`.
70
+ pad_token_id (`int`, *optional*):
71
+ Padding token id.
72
+ bos_token_id (`int`, *optional*, defaults to 1):
73
+ Beginning of stream token id.
74
+ eos_token_id (`int`, *optional*, defaults to 2):
75
+ End of stream token id.
76
+ pretraining_tp (`int`, *optional*, defaults to 1):
77
+ Experimental feature. Tensor parallelism rank used during pretraining. Please refer to [this
78
+ document](https://huggingface.co/docs/transformers/main/perf_train_gpu_many#tensor-parallelism) to understand more about it. This value is
79
+ necessary to ensure exact reproducibility of the pretraining results. Please refer to [this
80
+ issue](https://github.com/pytorch/pytorch/issues/76232).
81
+ tie_word_embeddings (`bool`, *optional*, defaults to `False`):
82
+ Whether to tie weight embeddings
83
+ rope_theta (`float`, *optional*, defaults to 10000.0):
84
+ The base period of the RoPE embeddings.
85
+ rope_scaling (`Dict`, *optional*):
86
+ Dictionary containing the scaling configuration for the RoPE embeddings. Currently supports two scaling
87
+ strategies: linear and dynamic. Their scaling factor must be a float greater than 1. The expected format is
88
+ `{"type": strategy name, "factor": scaling factor}`. When using this flag, don't update
89
+ `max_position_embeddings` to the expected new maximum. See the following thread for more information on how
90
+ these scaling strategies behave:
91
+ https://www.reddit.com/r/LocalLLaMA/comments/14mrgpr/dynamically_scaled_rope_further_increases/. This is an
92
+ experimental feature, subject to breaking API changes in future versions.
93
+ attention_bias (`bool`, defaults to `False`, *optional*, defaults to `False`):
94
+ Whether to use a bias in the query, key, value and output projection layers during self-attention.
95
+ attention_dropout (`float`, *optional*, defaults to 0.0):
96
+ The dropout ratio for the attention probabilities.
97
+
98
+ ```python
99
+ >>> from transformers import LlamaModel, LlamaConfig
100
+
101
+ >>> # Initializing a LLaMA llama-7b style configuration
102
+ >>> configuration = LlamaConfig()
103
+
104
+ >>> # Initializing a model from the llama-7b style configuration
105
+ >>> model = LlamaModel(configuration)
106
+
107
+ >>> # Accessing the model configuration
108
+ >>> configuration = model.config
109
+ ```"""
110
+
111
+ model_type = "llama"
112
+ keys_to_ignore_at_inference = ["past_key_values"]
113
+
114
+ def __init__(
115
+ self,
116
+ vocab_size=32000,
117
+ hidden_size=4096,
118
+ intermediate_size=11008,
119
+ num_hidden_layers=32,
120
+ num_attention_heads=32,
121
+ num_key_value_heads=None,
122
+ hidden_act="silu",
123
+ max_position_embeddings=2048,
124
+ initializer_range=0.02,
125
+ rms_norm_eps=1e-6,
126
+ use_cache=True,
127
+ pad_token_id=None,
128
+ bos_token_id=1,
129
+ eos_token_id=2,
130
+ pretraining_tp=1,
131
+ tie_word_embeddings=False,
132
+ rope_theta=10000.0,
133
+ rope_scaling=None,
134
+ attention_bias=False,
135
+ attention_dropout=0.0,
136
+ **kwargs,
137
+ ):
138
+ self.vocab_size = vocab_size
139
+ self.max_position_embeddings = max_position_embeddings
140
+ self.hidden_size = hidden_size
141
+ self.intermediate_size = intermediate_size
142
+ self.num_hidden_layers = num_hidden_layers
143
+ self.num_attention_heads = num_attention_heads
144
+
145
+ # for backward compatibility
146
+ if num_key_value_heads is None:
147
+ num_key_value_heads = num_attention_heads
148
+
149
+ self.num_key_value_heads = num_key_value_heads
150
+ self.hidden_act = hidden_act
151
+ self.initializer_range = initializer_range
152
+ self.rms_norm_eps = rms_norm_eps
153
+ self.pretraining_tp = pretraining_tp
154
+ self.use_cache = use_cache
155
+ self.rope_theta = rope_theta
156
+ self.rope_scaling = rope_scaling
157
+ self._rope_scaling_validation()
158
+ self.attention_bias = attention_bias
159
+ self.attention_dropout = attention_dropout
160
+
161
+ super().__init__(
162
+ pad_token_id=pad_token_id,
163
+ bos_token_id=bos_token_id,
164
+ eos_token_id=eos_token_id,
165
+ tie_word_embeddings=tie_word_embeddings,
166
+ **kwargs,
167
+ )
168
+
169
+ def _rope_scaling_validation(self):
170
+ """
171
+ Validate the `rope_scaling` configuration.
172
+ """
173
+ if self.rope_scaling is None:
174
+ return
175
+
176
+ if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 2:
177
+ raise ValueError(
178
+ "`rope_scaling` must be a dictionary with two fields, `type` and `factor`, " f"got {self.rope_scaling}"
179
+ )
180
+ rope_scaling_type = self.rope_scaling.get("type", None)
181
+ rope_scaling_factor = self.rope_scaling.get("factor", None)
182
+ if rope_scaling_type is None or rope_scaling_type not in ["linear", "dynamic"]:
183
+ raise ValueError(
184
+ f"`rope_scaling`'s type field must be one of ['linear', 'dynamic'], got {rope_scaling_type}"
185
+ )
186
+ if rope_scaling_factor is None or not isinstance(rope_scaling_factor, float) or rope_scaling_factor <= 1.0:
187
+ raise ValueError(f"`rope_scaling`'s factor field must be a float > 1, got {rope_scaling_factor}")
generation_config.json ADDED
@@ -0,0 +1,9 @@
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "bos_token_id": 128000,
3
+ "eos_token_id": 128001,
4
+ "do_sample": true,
5
+ "temperature": 0.6,
6
+ "max_length": 4096,
7
+ "top_p": 0.9,
8
+ "transformers_version": "4.40.0.dev0"
9
+ }
model-00001-of-00004.safetensors ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ }
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+ }
modeling_llama.py ADDED
@@ -0,0 +1,1550 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
5
+ # and OPT implementations in this library. It has been modified from its
6
+ # original forms to accommodate minor architectural differences compared
7
+ # to GPT-NeoX and OPT used by the Meta AI team that trained the model.
8
+ #
9
+ # Licensed under the Apache License, Version 2.0 (the "License");
10
+ # you may not use this file except in compliance with the License.
11
+ # You may obtain a copy of the License at
12
+ #
13
+ # http://www.apache.org/licenses/LICENSE-2.0
14
+ #
15
+ # Unless required by applicable law or agreed to in writing, software
16
+ # distributed under the License is distributed on an "AS IS" BASIS,
17
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18
+ # See the License for the specific language governing permissions and
19
+ # limitations under the License.
20
+ """PyTorch LLaMA model."""
21
+
22
+ import math
23
+ import warnings
24
+ from typing import List, Optional, Tuple, Union
25
+
26
+ import torch
27
+ import torch.nn.functional as F
28
+ import torch.utils.checkpoint
29
+ from torch import nn
30
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
31
+
32
+ from transformers.activations import ACT2FN
33
+ from transformers.cache_utils import Cache, DynamicCache, StaticCache
34
+ from transformers.modeling_attn_mask_utils import AttentionMaskConverter
35
+ from transformers.modeling_outputs import (
36
+ BaseModelOutputWithPast,
37
+ CausalLMOutputWithPast,
38
+ QuestionAnsweringModelOutput,
39
+ SequenceClassifierOutputWithPast,
40
+ )
41
+ from transformers.modeling_utils import PreTrainedModel
42
+ from transformers.pytorch_utils import ALL_LAYERNORM_LAYERS
43
+ from transformers.utils import (
44
+ add_start_docstrings,
45
+ add_start_docstrings_to_model_forward,
46
+ is_flash_attn_2_available,
47
+ is_flash_attn_greater_or_equal_2_10,
48
+ logging,
49
+ replace_return_docstrings,
50
+ )
51
+ from .configuration_llama import LlamaConfig
52
+ from transformers.models.llama.modeling_llama import LlamaRMSNorm
53
+
54
+
55
+ if is_flash_attn_2_available():
56
+ from flash_attn import flash_attn_func, flash_attn_varlen_func
57
+ from flash_attn.bert_padding import index_first_axis, pad_input, unpad_input # noqa
58
+
59
+
60
+
61
+ logger = logging.get_logger(__name__)
62
+
63
+ _CONFIG_FOR_DOC = "LlamaConfig"
64
+
65
+
66
+ def _get_unpad_data(attention_mask):
67
+ seqlens_in_batch = attention_mask.sum(dim=-1, dtype=torch.int32)
68
+ indices = torch.nonzero(attention_mask.flatten(), as_tuple=False).flatten()
69
+ max_seqlen_in_batch = seqlens_in_batch.max().item()
70
+ cu_seqlens = F.pad(torch.cumsum(seqlens_in_batch, dim=0, dtype=torch.int32), (1, 0))
71
+ return (
72
+ indices,
73
+ cu_seqlens,
74
+ max_seqlen_in_batch,
75
+ )
76
+
77
+ ALL_LAYERNORM_LAYERS.append(LlamaRMSNorm)
78
+
79
+
80
+ class LlamaRotaryEmbedding(nn.Module):
81
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None, scaling_factor=1.0):
82
+ super().__init__()
83
+ self.scaling_factor = scaling_factor
84
+ self.dim = dim
85
+ self.max_position_embeddings = max_position_embeddings
86
+ self.base = base
87
+ inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim))
88
+ self.register_buffer("inv_freq", inv_freq, persistent=False)
89
+ # For BC we register cos and sin cached
90
+ self.max_seq_len_cached = max_position_embeddings
91
+ t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(self.inv_freq)
92
+ t = t / self.scaling_factor
93
+ freqs = torch.outer(t, self.inv_freq)
94
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
95
+ emb = torch.cat((freqs, freqs), dim=-1)
96
+ self.register_buffer("_cos_cached", emb.cos().to(torch.get_default_dtype()), persistent=False)
97
+ self.register_buffer("_sin_cached", emb.sin().to(torch.get_default_dtype()), persistent=False)
98
+
99
+ @property
100
+ def sin_cached(self):
101
+ logger.warning_once(
102
+ "The sin_cached attribute will be removed in 4.39. Bear in mind that its contents changed in v4.38. Use "
103
+ "the forward method of RoPE from now on instead. It is not used in the `LlamaAttention` class"
104
+ )
105
+ return self._sin_cached
106
+
107
+ @property
108
+ def cos_cached(self):
109
+ logger.warning_once(
110
+ "The cos_cached attribute will be removed in 4.39. Bear in mind that its contents changed in v4.38. Use "
111
+ "the forward method of RoPE from now on instead. It is not used in the `LlamaAttention` class"
112
+ )
113
+ return self._cos_cached
114
+
115
+ @torch.no_grad()
116
+ def forward(self, x, position_ids):
117
+ # x: [bs, num_attention_heads, seq_len, head_size]
118
+ inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
119
+ position_ids_expanded = position_ids[:, None, :].float()
120
+ # Force float32 since bfloat16 loses precision on long contexts
121
+ # See https://github.com/huggingface/transformers/pull/29285
122
+ device_type = x.device.type
123
+ device_type = device_type if isinstance(device_type, str) and device_type != "mps" else "cpu"
124
+ with torch.autocast(device_type=device_type, enabled=False):
125
+ freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
126
+ emb = torch.cat((freqs, freqs), dim=-1)
127
+ cos = emb.cos()
128
+ sin = emb.sin()
129
+ return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
130
+
131
+
132
+ class LlamaLinearScalingRotaryEmbedding(LlamaRotaryEmbedding):
133
+ """LlamaRotaryEmbedding extended with linear scaling. Credits to the Reddit user /u/kaiokendev"""
134
+
135
+ def forward(self, x, position_ids):
136
+ # difference to the original RoPE: a scaling factor is aplied to the position ids
137
+ position_ids = position_ids.float() / self.scaling_factor
138
+ cos, sin = super().forward(x, position_ids)
139
+ return cos, sin
140
+
141
+
142
+ class LlamaDynamicNTKScalingRotaryEmbedding(LlamaRotaryEmbedding):
143
+ """LlamaRotaryEmbedding extended with Dynamic NTK scaling. Credits to the Reddit users /u/bloc97 and /u/emozilla"""
144
+
145
+ def forward(self, x, position_ids):
146
+ # difference to the original RoPE: inv_freq is recomputed when the sequence length > original length
147
+ seq_len = torch.max(position_ids) + 1
148
+ if seq_len > self.max_position_embeddings:
149
+ base = self.base * (
150
+ (self.scaling_factor * seq_len / self.max_position_embeddings) - (self.scaling_factor - 1)
151
+ ) ** (self.dim / (self.dim - 2))
152
+ inv_freq = 1.0 / (
153
+ base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(x.device) / self.dim)
154
+ )
155
+ self.register_buffer("inv_freq", inv_freq, persistent=False) # TODO joao: this may break with compilation
156
+
157
+ cos, sin = super().forward(x, position_ids)
158
+ return cos, sin
159
+
160
+
161
+ def rotate_half(x):
162
+ """Rotates half the hidden dims of the input."""
163
+ x1 = x[..., : x.shape[-1] // 2]
164
+ x2 = x[..., x.shape[-1] // 2 :]
165
+ return torch.cat((-x2, x1), dim=-1)
166
+
167
+
168
+ def apply_rotary_pos_emb(q, k, cos, sin, position_ids=None, unsqueeze_dim=1):
169
+ """Applies Rotary Position Embedding to the query and key tensors.
170
+
171
+ Args:
172
+ q (`torch.Tensor`): The query tensor.
173
+ k (`torch.Tensor`): The key tensor.
174
+ cos (`torch.Tensor`): The cosine part of the rotary embedding.
175
+ sin (`torch.Tensor`): The sine part of the rotary embedding.
176
+ position_ids (`torch.Tensor`, *optional*):
177
+ Deprecated and unused.
178
+ unsqueeze_dim (`int`, *optional*, defaults to 1):
179
+ The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
180
+ sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
181
+ that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
182
+ k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
183
+ cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
184
+ the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
185
+ Returns:
186
+ `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
187
+ """
188
+ cos = cos.unsqueeze(unsqueeze_dim)
189
+ sin = sin.unsqueeze(unsqueeze_dim)
190
+ q_embed = (q * cos) + (rotate_half(q) * sin)
191
+ k_embed = (k * cos) + (rotate_half(k) * sin)
192
+ return q_embed, k_embed
193
+
194
+
195
+ class LlamaMLP(nn.Module):
196
+ def __init__(self, config):
197
+ super().__init__()
198
+ self.config = config
199
+ self.hidden_size = config.hidden_size
200
+ self.intermediate_size = config.intermediate_size
201
+ self.gate_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
202
+ self.up_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
203
+ self.down_proj = nn.Linear(self.intermediate_size, self.hidden_size, bias=False)
204
+ self.act_fn = ACT2FN[config.hidden_act]
205
+
206
+ def forward(self, x):
207
+ if self.config.pretraining_tp > 1:
208
+ slice = self.intermediate_size // self.config.pretraining_tp
209
+ gate_proj_slices = self.gate_proj.weight.split(slice, dim=0)
210
+ up_proj_slices = self.up_proj.weight.split(slice, dim=0)
211
+ down_proj_slices = self.down_proj.weight.split(slice, dim=1)
212
+
213
+ gate_proj = torch.cat(
214
+ [F.linear(x, gate_proj_slices[i]) for i in range(self.config.pretraining_tp)], dim=-1
215
+ )
216
+ up_proj = torch.cat([F.linear(x, up_proj_slices[i]) for i in range(self.config.pretraining_tp)], dim=-1)
217
+
218
+ intermediate_states = (self.act_fn(gate_proj) * up_proj).split(slice, dim=2)
219
+ down_proj = [
220
+ F.linear(intermediate_states[i], down_proj_slices[i]) for i in range(self.config.pretraining_tp)
221
+ ]
222
+ down_proj = sum(down_proj)
223
+ else:
224
+ down_proj = self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x))
225
+
226
+ return down_proj
227
+
228
+
229
+ def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
230
+ """
231
+ This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch,
232
+ num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim)
233
+ """
234
+ batch, num_key_value_heads, slen, head_dim = hidden_states.shape
235
+ if n_rep == 1:
236
+ return hidden_states
237
+ hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim)
238
+ return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
239
+
240
+
241
+ class LlamaAttention(nn.Module):
242
+ """Multi-headed attention from 'Attention Is All You Need' paper"""
243
+
244
+ def __init__(self, config: LlamaConfig, layer_idx: Optional[int] = None):
245
+ super().__init__()
246
+ self.config = config
247
+ self.layer_idx = layer_idx
248
+ if layer_idx is None:
249
+ logger.warning_once(
250
+ f"Instantiating {self.__class__.__name__} without passing a `layer_idx` is not recommended and will "
251
+ "lead to errors during the forward call if caching is used. Please make sure to provide a `layer_idx` "
252
+ "when creating this class."
253
+ )
254
+
255
+ self.attention_dropout = config.attention_dropout
256
+ self.hidden_size = config.hidden_size
257
+ self.num_heads = config.num_attention_heads
258
+ self.head_dim = self.hidden_size // self.num_heads
259
+ self.num_key_value_heads = config.num_key_value_heads
260
+ self.num_key_value_groups = self.num_heads // self.num_key_value_heads
261
+ self.max_position_embeddings = config.max_position_embeddings
262
+ self.rope_theta = config.rope_theta
263
+ self.is_causal = True
264
+
265
+ if (self.head_dim * self.num_heads) != self.hidden_size:
266
+ raise ValueError(
267
+ f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}"
268
+ f" and `num_heads`: {self.num_heads})."
269
+ )
270
+
271
+ self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=config.attention_bias)
272
+ self.k_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=config.attention_bias)
273
+ self.v_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=config.attention_bias)
274
+ self.o_proj = nn.Linear(self.hidden_size, self.hidden_size, bias=config.attention_bias)
275
+ self._init_rope()
276
+
277
+ def _init_rope(self):
278
+ if self.config.rope_scaling is None:
279
+ self.rotary_emb = LlamaRotaryEmbedding(
280
+ self.head_dim,
281
+ max_position_embeddings=self.max_position_embeddings,
282
+ base=self.rope_theta,
283
+ )
284
+ else:
285
+ scaling_type = self.config.rope_scaling["type"]
286
+ scaling_factor = self.config.rope_scaling["factor"]
287
+ if scaling_type == "linear":
288
+ self.rotary_emb = LlamaLinearScalingRotaryEmbedding(
289
+ self.head_dim,
290
+ max_position_embeddings=self.max_position_embeddings,
291
+ scaling_factor=scaling_factor,
292
+ base=self.rope_theta,
293
+ )
294
+ elif scaling_type == "dynamic":
295
+ self.rotary_emb = LlamaDynamicNTKScalingRotaryEmbedding(
296
+ self.head_dim,
297
+ max_position_embeddings=self.max_position_embeddings,
298
+ scaling_factor=scaling_factor,
299
+ base=self.rope_theta,
300
+ )
301
+ else:
302
+ raise ValueError(f"Unknown RoPE scaling type {scaling_type}")
303
+
304
+ def forward(
305
+ self,
306
+ hidden_states: torch.Tensor,
307
+ attention_mask: Optional[torch.Tensor] = None,
308
+ position_ids: Optional[torch.LongTensor] = None,
309
+ past_key_value: Optional[Cache] = None,
310
+ output_attentions: bool = False,
311
+ use_cache: bool = False,
312
+ cache_position: Optional[torch.LongTensor] = None,
313
+ **kwargs,
314
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
315
+ bsz, q_len, _ = hidden_states.size()
316
+
317
+ if self.config.pretraining_tp > 1:
318
+ key_value_slicing = (self.num_key_value_heads * self.head_dim) // self.config.pretraining_tp
319
+ query_slices = self.q_proj.weight.split(
320
+ (self.num_heads * self.head_dim) // self.config.pretraining_tp, dim=0
321
+ )
322
+ key_slices = self.k_proj.weight.split(key_value_slicing, dim=0)
323
+ value_slices = self.v_proj.weight.split(key_value_slicing, dim=0)
324
+
325
+ query_states = [F.linear(hidden_states, query_slices[i]) for i in range(self.config.pretraining_tp)]
326
+ query_states = torch.cat(query_states, dim=-1)
327
+
328
+ key_states = [F.linear(hidden_states, key_slices[i]) for i in range(self.config.pretraining_tp)]
329
+ key_states = torch.cat(key_states, dim=-1)
330
+
331
+ value_states = [F.linear(hidden_states, value_slices[i]) for i in range(self.config.pretraining_tp)]
332
+ value_states = torch.cat(value_states, dim=-1)
333
+
334
+ else:
335
+ query_states = self.q_proj(hidden_states)
336
+ key_states = self.k_proj(hidden_states)
337
+ value_states = self.v_proj(hidden_states)
338
+
339
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
340
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
341
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
342
+
343
+ past_key_value = getattr(self, "past_key_value", past_key_value)
344
+ cos, sin = self.rotary_emb(value_states, position_ids)
345
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
346
+
347
+ if past_key_value is not None:
348
+ # sin and cos are specific to RoPE models; cache_position needed for the static cache
349
+ cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
350
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
351
+
352
+ key_states = repeat_kv(key_states, self.num_key_value_groups)
353
+ value_states = repeat_kv(value_states, self.num_key_value_groups)
354
+
355
+ attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
356
+
357
+ if attention_mask is not None: # no matter the length, we just slice it
358
+ causal_mask = attention_mask[:, :, :, : key_states.shape[-2]]
359
+ attn_weights = attn_weights + causal_mask
360
+
361
+ # upcast attention to fp32
362
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
363
+ attn_weights = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training)
364
+ attn_output = torch.matmul(attn_weights, value_states)
365
+
366
+ if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim):
367
+ raise ValueError(
368
+ f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is"
369
+ f" {attn_output.size()}"
370
+ )
371
+
372
+ attn_output = attn_output.transpose(1, 2).contiguous()
373
+
374
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
375
+
376
+ if self.config.pretraining_tp > 1:
377
+ attn_output = attn_output.split(self.hidden_size // self.config.pretraining_tp, dim=2)
378
+ o_proj_slices = self.o_proj.weight.split(self.hidden_size // self.config.pretraining_tp, dim=1)
379
+ attn_output = sum([F.linear(attn_output[i], o_proj_slices[i]) for i in range(self.config.pretraining_tp)])
380
+ else:
381
+ attn_output = self.o_proj(attn_output)
382
+
383
+ if not output_attentions:
384
+ attn_weights = None
385
+
386
+ return attn_output, attn_weights, past_key_value
387
+
388
+
389
+ class LlamaFlashAttention2(LlamaAttention):
390
+ """
391
+ Llama flash attention module. This module inherits from `LlamaAttention` as the weights of the module stays
392
+ untouched. The only required change would be on the forward pass where it needs to correctly call the public API of
393
+ flash attention and deal with padding tokens in case the input contains any of them.
394
+ """
395
+
396
+ def __init__(self, *args, **kwargs):
397
+ super().__init__(*args, **kwargs)
398
+
399
+ # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1.
400
+ # flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignement, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0.
401
+ # Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left).
402
+ self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10()
403
+
404
+ def forward(
405
+ self,
406
+ hidden_states: torch.Tensor,
407
+ attention_mask: Optional[torch.LongTensor] = None,
408
+ position_ids: Optional[torch.LongTensor] = None,
409
+ past_key_value: Optional[Cache] = None,
410
+ output_attentions: bool = False,
411
+ use_cache: bool = False,
412
+ cache_position: Optional[torch.LongTensor] = None,
413
+ **kwargs,
414
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
415
+ output_attentions = False
416
+
417
+ bsz, q_len, _ = hidden_states.size()
418
+
419
+ query_states = self.q_proj(hidden_states)
420
+ key_states = self.k_proj(hidden_states)
421
+ value_states = self.v_proj(hidden_states)
422
+
423
+ # Flash attention requires the input to have the shape
424
+ # batch_size x seq_length x head_dim x hidden_dim
425
+ # therefore we just need to keep the original shape
426
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
427
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
428
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
429
+
430
+ cos, sin = self.rotary_emb(value_states, position_ids)
431
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
432
+
433
+ past_key_value = getattr(self, "past_key_value", past_key_value)
434
+
435
+ if past_key_value is not None:
436
+ # sin and cos are specific to RoPE models; cache_position needed for the static cache
437
+ cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
438
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
439
+
440
+ # TODO: These transpose are quite inefficient but Flash Attention requires the layout [batch_size, sequence_length, num_heads, head_dim]. We would need to refactor the KV cache
441
+ # to be able to avoid many of these transpose/reshape/view.
442
+ query_states = query_states.transpose(1, 2)
443
+ key_states = key_states.transpose(1, 2)
444
+ value_states = value_states.transpose(1, 2)
445
+
446
+ dropout_rate = self.attention_dropout if self.training else 0.0
447
+
448
+ # In PEFT, usually we cast the layer norms in float32 for training stability reasons
449
+ # therefore the input hidden states gets silently casted in float32. Hence, we need
450
+ # cast them back in the correct dtype just to be sure everything works as expected.
451
+ # This might slowdown training & inference so it is recommended to not cast the LayerNorms
452
+ # in fp32. (LlamaRMSNorm handles it correctly)
453
+
454
+ input_dtype = query_states.dtype
455
+ if input_dtype == torch.float32:
456
+ if torch.is_autocast_enabled():
457
+ target_dtype = torch.get_autocast_gpu_dtype()
458
+ # Handle the case where the model is quantized
459
+ elif hasattr(self.config, "_pre_quantization_dtype"):
460
+ target_dtype = self.config._pre_quantization_dtype
461
+ else:
462
+ target_dtype = self.q_proj.weight.dtype
463
+
464
+ logger.warning_once(
465
+ f"The input hidden states seems to be silently casted in float32, this might be related to"
466
+ f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in"
467
+ f" {target_dtype}."
468
+ )
469
+
470
+ query_states = query_states.to(target_dtype)
471
+ key_states = key_states.to(target_dtype)
472
+ value_states = value_states.to(target_dtype)
473
+
474
+ attn_output = self._flash_attention_forward(
475
+ query_states, key_states, value_states, attention_mask, q_len, dropout=dropout_rate
476
+ )
477
+
478
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous()
479
+ attn_output = self.o_proj(attn_output)
480
+
481
+ if not output_attentions:
482
+ attn_weights = None
483
+
484
+ return attn_output, attn_weights, past_key_value
485
+
486
+ def _flash_attention_forward(
487
+ self, query_states, key_states, value_states, attention_mask, query_length, dropout=0.0, softmax_scale=None
488
+ ):
489
+ """
490
+ Calls the forward method of Flash Attention - if the input hidden states contain at least one padding token
491
+ first unpad the input, then computes the attention scores and pad the final attention scores.
492
+
493
+ Args:
494
+ query_states (`torch.Tensor`):
495
+ Input query states to be passed to Flash Attention API
496
+ key_states (`torch.Tensor`):
497
+ Input key states to be passed to Flash Attention API
498
+ value_states (`torch.Tensor`):
499
+ Input value states to be passed to Flash Attention API
500
+ attention_mask (`torch.Tensor`):
501
+ The padding mask - corresponds to a tensor of size `(batch_size, seq_len)` where 0 stands for the
502
+ position of padding tokens and 1 for the position of non-padding tokens.
503
+ dropout (`float`):
504
+ Attention dropout
505
+ softmax_scale (`float`, *optional*):
506
+ The scaling of QK^T before applying softmax. Default to 1 / sqrt(head_dim)
507
+ """
508
+ if not self._flash_attn_uses_top_left_mask:
509
+ causal = self.is_causal
510
+ else:
511
+ # TODO: Remove the `query_length != 1` check once Flash Attention for RoCm is bumped to 2.1. For details, please see the comment in LlamaFlashAttention2 __init__.
512
+ causal = self.is_causal and query_length != 1
513
+
514
+ # Contains at least one padding token in the sequence
515
+ if attention_mask is not None:
516
+ batch_size = query_states.shape[0]
517
+ query_states, key_states, value_states, indices_q, cu_seq_lens, max_seq_lens = self._upad_input(
518
+ query_states, key_states, value_states, attention_mask, query_length
519
+ )
520
+
521
+ cu_seqlens_q, cu_seqlens_k = cu_seq_lens
522
+ max_seqlen_in_batch_q, max_seqlen_in_batch_k = max_seq_lens
523
+
524
+ attn_output_unpad = flash_attn_varlen_func(
525
+ query_states,
526
+ key_states,
527
+ value_states,
528
+ cu_seqlens_q=cu_seqlens_q,
529
+ cu_seqlens_k=cu_seqlens_k,
530
+ max_seqlen_q=max_seqlen_in_batch_q,
531
+ max_seqlen_k=max_seqlen_in_batch_k,
532
+ dropout_p=dropout,
533
+ softmax_scale=softmax_scale,
534
+ causal=causal,
535
+ )
536
+
537
+ attn_output = pad_input(attn_output_unpad, indices_q, batch_size, query_length)
538
+ else:
539
+ attn_output = flash_attn_func(
540
+ query_states, key_states, value_states, dropout, softmax_scale=softmax_scale, causal=causal
541
+ )
542
+
543
+ return attn_output
544
+
545
+ def _upad_input(self, query_layer, key_layer, value_layer, attention_mask, query_length):
546
+ indices_k, cu_seqlens_k, max_seqlen_in_batch_k = _get_unpad_data(attention_mask)
547
+ batch_size, kv_seq_len, num_key_value_heads, head_dim = key_layer.shape
548
+
549
+ key_layer = index_first_axis(
550
+ key_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
551
+ )
552
+ value_layer = index_first_axis(
553
+ value_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
554
+ )
555
+ if query_length == kv_seq_len:
556
+ query_layer = index_first_axis(
557
+ query_layer.reshape(batch_size * kv_seq_len, self.num_heads, head_dim), indices_k
558
+ )
559
+ cu_seqlens_q = cu_seqlens_k
560
+ max_seqlen_in_batch_q = max_seqlen_in_batch_k
561
+ indices_q = indices_k
562
+ elif query_length == 1:
563
+ max_seqlen_in_batch_q = 1
564
+ cu_seqlens_q = torch.arange(
565
+ batch_size + 1, dtype=torch.int32, device=query_layer.device
566
+ ) # There is a memcpy here, that is very bad.
567
+ indices_q = cu_seqlens_q[:-1]
568
+ query_layer = query_layer.squeeze(1)
569
+ else:
570
+ # The -q_len: slice assumes left padding.
571
+ attention_mask = attention_mask[:, -query_length:]
572
+ query_layer, indices_q, cu_seqlens_q, max_seqlen_in_batch_q = unpad_input(query_layer, attention_mask)
573
+
574
+ return (
575
+ query_layer,
576
+ key_layer,
577
+ value_layer,
578
+ indices_q,
579
+ (cu_seqlens_q, cu_seqlens_k),
580
+ (max_seqlen_in_batch_q, max_seqlen_in_batch_k),
581
+ )
582
+
583
+
584
+ class LlamaSdpaAttention(LlamaAttention):
585
+ """
586
+ Llama attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
587
+ `LlamaAttention` as the weights of the module stays untouched. The only changes are on the forward pass to adapt to
588
+ SDPA API.
589
+ """
590
+
591
+ # Adapted from LlamaAttention.forward
592
+ def forward(
593
+ self,
594
+ hidden_states: torch.Tensor,
595
+ attention_mask: Optional[torch.Tensor] = None,
596
+ position_ids: Optional[torch.LongTensor] = None,
597
+ past_key_value: Optional[Cache] = None,
598
+ output_attentions: bool = False,
599
+ use_cache: bool = False,
600
+ cache_position: Optional[torch.LongTensor] = None,
601
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
602
+ if output_attentions:
603
+ # TODO: Improve this warning with e.g. `model.config.attn_implementation = "manual"` once this is implemented.
604
+ logger.warning_once(
605
+ "LlamaModel is using LlamaSdpaAttention, but `torch.nn.functional.scaled_dot_product_attention` does not support `output_attentions=True`. Falling back to the manual attention implementation, "
606
+ 'but specifying the manual implementation will be required from Transformers version v5.0.0 onwards. This warning can be removed using the argument `attn_implementation="eager"` when loading the model.'
607
+ )
608
+ return super().forward(
609
+ hidden_states=hidden_states,
610
+ attention_mask=attention_mask,
611
+ position_ids=position_ids,
612
+ past_key_value=past_key_value,
613
+ output_attentions=output_attentions,
614
+ use_cache=use_cache,
615
+ cache_position=cache_position,
616
+ )
617
+
618
+ bsz, q_len, _ = hidden_states.size()
619
+
620
+ query_states = self.q_proj(hidden_states)
621
+ key_states = self.k_proj(hidden_states)
622
+ value_states = self.v_proj(hidden_states)
623
+
624
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
625
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
626
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
627
+
628
+ cos, sin = self.rotary_emb(value_states, position_ids)
629
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
630
+
631
+ # In case static cache is used, it is an instance attribute.
632
+ past_key_value = getattr(self, "past_key_value", past_key_value)
633
+
634
+ if past_key_value is not None:
635
+ # sin and cos are specific to RoPE models; cache_position needed for the static cache
636
+ cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
637
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
638
+
639
+ key_states = repeat_kv(key_states, self.num_key_value_groups)
640
+ value_states = repeat_kv(value_states, self.num_key_value_groups)
641
+
642
+ causal_mask = attention_mask
643
+ if attention_mask is not None:
644
+ causal_mask = causal_mask[:, :, :, : key_states.shape[-2]]
645
+
646
+ # SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask,
647
+ # Reference: https://github.com/pytorch/pytorch/issues/112577.
648
+ if causal_mask is not None:
649
+ query_states = query_states.contiguous()
650
+ key_states = key_states.contiguous()
651
+ value_states = value_states.contiguous()
652
+
653
+ # In case we are not compiling, we may set `causal_mask` to None, which is required to dispatch to SDPA's Flash Attention 2 backend, rather
654
+ # relying on the `is_causal` argument.
655
+ attn_output = torch.nn.functional.scaled_dot_product_attention(
656
+ query_states,
657
+ key_states,
658
+ value_states,
659
+ attn_mask=causal_mask,
660
+ dropout_p=self.attention_dropout if self.training else 0.0,
661
+ is_causal=causal_mask is None and q_len > 1,
662
+ )
663
+
664
+ attn_output = attn_output.transpose(1, 2).contiguous()
665
+ attn_output = attn_output.view(bsz, q_len, self.hidden_size)
666
+
667
+ attn_output = self.o_proj(attn_output)
668
+
669
+ return attn_output, None, past_key_value
670
+
671
+
672
+ LLAMA_ATTENTION_CLASSES = {
673
+ "eager": LlamaAttention,
674
+ "flash_attention_2": LlamaFlashAttention2,
675
+ "sdpa": LlamaSdpaAttention,
676
+ }
677
+
678
+
679
+ class LlamaDecoderLayer(nn.Module):
680
+ def __init__(self, config: LlamaConfig, layer_idx: int):
681
+ super().__init__()
682
+ self.hidden_size = config.hidden_size
683
+
684
+ self.self_attn = LLAMA_ATTENTION_CLASSES[config._attn_implementation](config=config, layer_idx=layer_idx)
685
+
686
+ self.mlp = LlamaMLP(config)
687
+ self.input_layernorm = LlamaRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
688
+ self.post_attention_layernorm = LlamaRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
689
+
690
+ def forward(
691
+ self,
692
+ hidden_states: torch.Tensor,
693
+ attention_mask: Optional[torch.Tensor] = None,
694
+ position_ids: Optional[torch.LongTensor] = None,
695
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
696
+ output_attentions: Optional[bool] = False,
697
+ use_cache: Optional[bool] = False,
698
+ cache_position: Optional[torch.LongTensor] = None,
699
+ **kwargs,
700
+ ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
701
+ """
702
+ Args:
703
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
704
+ attention_mask (`torch.FloatTensor`, *optional*):
705
+ attention mask of size `(batch_size, sequence_length)` if flash attention is used or `(batch_size, 1,
706
+ query_sequence_length, key_sequence_length)` if default attention is used.
707
+ output_attentions (`bool`, *optional*):
708
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
709
+ returned tensors for more detail.
710
+ use_cache (`bool`, *optional*):
711
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
712
+ (see `past_key_values`).
713
+ past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states
714
+ """
715
+ if "padding_mask" in kwargs:
716
+ warnings.warn(
717
+ "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
718
+ )
719
+
720
+ residual = hidden_states
721
+
722
+ hidden_states = self.input_layernorm(hidden_states)
723
+
724
+ # Self Attention
725
+ hidden_states, self_attn_weights, present_key_value = self.self_attn(
726
+ hidden_states=hidden_states,
727
+ attention_mask=attention_mask,
728
+ position_ids=position_ids,
729
+ past_key_value=past_key_value,
730
+ output_attentions=output_attentions,
731
+ use_cache=use_cache,
732
+ cache_position=cache_position,
733
+ **kwargs,
734
+ )
735
+ hidden_states = residual + hidden_states
736
+
737
+ # Fully Connected
738
+ residual = hidden_states
739
+ hidden_states = self.post_attention_layernorm(hidden_states)
740
+ hidden_states = self.mlp(hidden_states)
741
+ hidden_states = residual + hidden_states
742
+
743
+ outputs = (hidden_states,)
744
+
745
+ if output_attentions:
746
+ outputs += (self_attn_weights,)
747
+
748
+ if use_cache:
749
+ outputs += (present_key_value,)
750
+
751
+ return outputs
752
+
753
+
754
+ LLAMA_START_DOCSTRING = r"""
755
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
756
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
757
+ etc.)
758
+
759
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
760
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
761
+ and behavior.
762
+
763
+ Parameters:
764
+ config ([`LlamaConfig`]):
765
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
766
+ load the weights associated with the model, only the configuration. Check out the
767
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
768
+ """
769
+
770
+
771
+ @add_start_docstrings(
772
+ "The bare LLaMA Model outputting raw hidden-states without any specific head on top.",
773
+ LLAMA_START_DOCSTRING,
774
+ )
775
+ class LlamaPreTrainedModel(PreTrainedModel):
776
+ config_class = LlamaConfig
777
+ base_model_prefix = "model"
778
+ supports_gradient_checkpointing = True
779
+ _no_split_modules = ["LlamaDecoderLayer"]
780
+ _skip_keys_device_placement = ["past_key_values"]
781
+ _supports_flash_attn_2 = True
782
+ _supports_sdpa = True
783
+ _supports_cache_class = True
784
+
785
+ def _init_weights(self, module):
786
+ std = self.config.initializer_range
787
+ if isinstance(module, nn.Linear):
788
+ module.weight.data.normal_(mean=0.0, std=std)
789
+ if module.bias is not None:
790
+ module.bias.data.zero_()
791
+ elif isinstance(module, nn.Embedding):
792
+ module.weight.data.normal_(mean=0.0, std=std)
793
+ if module.padding_idx is not None:
794
+ module.weight.data[module.padding_idx].zero_()
795
+
796
+ def _setup_cache(self, cache_cls, max_batch_size, max_cache_len: Optional[int] = None):
797
+ if self.config._attn_implementation == "flash_attention_2" and cache_cls == StaticCache:
798
+ raise ValueError(
799
+ "`static` cache implementation is not compatible with `attn_implementation==flash_attention_2` "
800
+ "make sure to use `sdpa` in the mean time, and open an issue at https://github.com/huggingface/transformers"
801
+ )
802
+
803
+ for layer in self.model.layers:
804
+ device = layer.input_layernorm.weight.device
805
+ if hasattr(self.config, "_pre_quantization_dtype"):
806
+ dtype = self.config._pre_quantization_dtype
807
+ else:
808
+ dtype = layer.self_attn.o_proj.weight.dtype
809
+ layer.self_attn.past_key_value = cache_cls(
810
+ self.config, max_batch_size, max_cache_len, device=device, dtype=dtype
811
+ )
812
+
813
+ def _reset_cache(self):
814
+ for layer in self.model.layers:
815
+ layer.self_attn.past_key_value = None
816
+
817
+
818
+ LLAMA_INPUTS_DOCSTRING = r"""
819
+ Args:
820
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
821
+ Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
822
+ it.
823
+
824
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
825
+ [`PreTrainedTokenizer.__call__`] for details.
826
+
827
+ [What are input IDs?](../glossary#input-ids)
828
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
829
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
830
+
831
+ - 1 for tokens that are **not masked**,
832
+ - 0 for tokens that are **masked**.
833
+
834
+ [What are attention masks?](../glossary#attention-mask)
835
+
836
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
837
+ [`PreTrainedTokenizer.__call__`] for details.
838
+
839
+ If `past_key_values` is used, optionally only the last `input_ids` have to be input (see
840
+ `past_key_values`).
841
+
842
+ If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`]
843
+ and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more
844
+ information on the default strategy.
845
+
846
+ - 1 indicates the head is **not masked**,
847
+ - 0 indicates the head is **masked**.
848
+ position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
849
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
850
+ config.n_positions - 1]`.
851
+
852
+ [What are position IDs?](../glossary#position-ids)
853
+ past_key_values (`Cache` or `tuple(tuple(torch.FloatTensor))`, *optional*):
854
+ Pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
855
+ blocks) that can be used to speed up sequential decoding. This typically consists in the `past_key_values`
856
+ returned by the model at a previous stage of decoding, when `use_cache=True` or `config.use_cache=True`.
857
+
858
+ Two formats are allowed:
859
+ - a [`~cache_utils.Cache`] instance;
860
+ - Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of
861
+ shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`). This is also known as the legacy
862
+ cache format.
863
+
864
+ The model will output the same cache format that is fed as input. If no `past_key_values` are passed, the
865
+ legacy cache format will be returned.
866
+
867
+ If `past_key_values` are used, the user can optionally input only the last `input_ids` (those that don't
868
+ have their past key value states given to this model) of shape `(batch_size, 1)` instead of all `input_ids`
869
+ of shape `(batch_size, sequence_length)`.
870
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
871
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
872
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
873
+ model's internal embedding lookup matrix.
874
+ use_cache (`bool`, *optional*):
875
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
876
+ `past_key_values`).
877
+ output_attentions (`bool`, *optional*):
878
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
879
+ tensors for more detail.
880
+ output_hidden_states (`bool`, *optional*):
881
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
882
+ more detail.
883
+ return_dict (`bool`, *optional*):
884
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
885
+ cache_position (`torch.LongTensor` of shape `(sequence_length)`, *optional*):
886
+ Indices depicting the position of the input sequence tokens in the sequence. Contrarily to `position_ids`,
887
+ this tensor is not affected by padding. It is used to update the cache in the correct position and to infer
888
+ the complete sequence length.
889
+ """
890
+
891
+
892
+ @add_start_docstrings(
893
+ "The bare LLaMA Model outputting raw hidden-states without any specific head on top.",
894
+ LLAMA_START_DOCSTRING,
895
+ )
896
+ class LlamaModel(LlamaPreTrainedModel):
897
+ """
898
+ Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`LlamaDecoderLayer`]
899
+
900
+ Args:
901
+ config: LlamaConfig
902
+ """
903
+
904
+ def __init__(self, config: LlamaConfig):
905
+ super().__init__(config)
906
+ self.padding_idx = config.pad_token_id
907
+ self.vocab_size = config.vocab_size
908
+
909
+ self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
910
+ self.layers = nn.ModuleList(
911
+ [LlamaDecoderLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)]
912
+ )
913
+ self.norm = LlamaRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
914
+ self.gradient_checkpointing = False
915
+
916
+ # Initialize weights and apply final processing
917
+ self.post_init()
918
+
919
+ def get_input_embeddings(self):
920
+ return self.embed_tokens
921
+
922
+ def set_input_embeddings(self, value):
923
+ self.embed_tokens = value
924
+
925
+ @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING)
926
+ def forward(
927
+ self,
928
+ input_ids: torch.LongTensor = None,
929
+ attention_mask: Optional[torch.Tensor] = None,
930
+ position_ids: Optional[torch.LongTensor] = None,
931
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
932
+ inputs_embeds: Optional[torch.FloatTensor] = None,
933
+ use_cache: Optional[bool] = None,
934
+ output_attentions: Optional[bool] = None,
935
+ output_hidden_states: Optional[bool] = None,
936
+ return_dict: Optional[bool] = None,
937
+ cache_position: Optional[torch.LongTensor] = None,
938
+ ) -> Union[Tuple, BaseModelOutputWithPast]:
939
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
940
+ output_hidden_states = (
941
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
942
+ )
943
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
944
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
945
+
946
+ if (input_ids is None) ^ (inputs_embeds is not None):
947
+ raise ValueError(
948
+ "You cannot specify both input_ids and inputs_embeds at the same time, and must specify either one"
949
+ )
950
+
951
+ if self.gradient_checkpointing and self.training and use_cache:
952
+ logger.warning_once(
953
+ "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`."
954
+ )
955
+ use_cache = False
956
+
957
+ if inputs_embeds is None:
958
+ inputs_embeds = self.embed_tokens(input_ids)
959
+
960
+ past_seen_tokens = 0
961
+ if use_cache: # kept for BC (cache positions)
962
+ if past_key_values is not None and not isinstance(past_key_values, StaticCache):
963
+ past_key_values = DynamicCache.from_legacy_cache(past_key_values)
964
+ past_seen_tokens = past_key_values.get_seq_length()
965
+
966
+ if cache_position is None:
967
+ if isinstance(past_key_values, StaticCache):
968
+ raise ValueError("cache_position is a required argument when using StaticCache.")
969
+ cache_position = torch.arange(
970
+ past_seen_tokens, past_seen_tokens + inputs_embeds.shape[1], device=inputs_embeds.device
971
+ )
972
+
973
+ if position_ids is None:
974
+ position_ids = cache_position.unsqueeze(0)
975
+
976
+ causal_mask = self._update_causal_mask(attention_mask, inputs_embeds, cache_position, past_seen_tokens)
977
+
978
+ # embed positions
979
+ hidden_states = inputs_embeds
980
+
981
+ # decoder layers
982
+ all_hidden_states = () if output_hidden_states else None
983
+ all_self_attns = () if output_attentions else None
984
+ next_decoder_cache = None
985
+
986
+ for decoder_layer in self.layers:
987
+ if output_hidden_states:
988
+ all_hidden_states += (hidden_states,)
989
+
990
+ if self.gradient_checkpointing and self.training:
991
+ layer_outputs = self._gradient_checkpointing_func(
992
+ decoder_layer.__call__,
993
+ hidden_states,
994
+ causal_mask,
995
+ position_ids,
996
+ past_key_values,
997
+ output_attentions,
998
+ use_cache,
999
+ cache_position,
1000
+ )
1001
+ else:
1002
+ layer_outputs = decoder_layer(
1003
+ hidden_states,
1004
+ attention_mask=causal_mask,
1005
+ position_ids=position_ids,
1006
+ past_key_value=past_key_values,
1007
+ output_attentions=output_attentions,
1008
+ use_cache=use_cache,
1009
+ cache_position=cache_position,
1010
+ )
1011
+
1012
+ hidden_states = layer_outputs[0]
1013
+
1014
+ if use_cache:
1015
+ next_decoder_cache = layer_outputs[2 if output_attentions else 1]
1016
+
1017
+ if output_attentions:
1018
+ all_self_attns += (layer_outputs[1],)
1019
+
1020
+ hidden_states = self.norm(hidden_states)
1021
+
1022
+ # add hidden states from the last decoder layer
1023
+ if output_hidden_states:
1024
+ all_hidden_states += (hidden_states,)
1025
+
1026
+ next_cache = None
1027
+ if use_cache:
1028
+ next_cache = (
1029
+ next_decoder_cache.to_legacy_cache() if isinstance(next_decoder_cache, Cache) else next_decoder_cache
1030
+ )
1031
+ if not return_dict:
1032
+ return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
1033
+ return BaseModelOutputWithPast(
1034
+ last_hidden_state=hidden_states,
1035
+ past_key_values=next_cache,
1036
+ hidden_states=all_hidden_states,
1037
+ attentions=all_self_attns,
1038
+ )
1039
+
1040
+ def _update_causal_mask(
1041
+ self,
1042
+ attention_mask: torch.Tensor,
1043
+ input_tensor: torch.Tensor,
1044
+ cache_position: torch.Tensor,
1045
+ past_seen_tokens: int,
1046
+ ):
1047
+ # TODO: As of torch==2.2.0, the `attention_mask` passed to the model in `generate` is 2D and of dynamic length even when the static
1048
+ # KV cache is used. This is an issue for torch.compile which then recaptures cudagraphs at each decode steps due to the dynamic shapes.
1049
+ # (`recording cudagraph tree for symint key 13`, etc.), which is VERY slow. A workaround is `@torch.compiler.disable`, but this prevents using
1050
+ # `fullgraph=True`. See more context in https://github.com/huggingface/transformers/pull/29114
1051
+
1052
+ if self.config._attn_implementation == "flash_attention_2":
1053
+ if attention_mask is not None and 0.0 in attention_mask:
1054
+ return attention_mask
1055
+ return None
1056
+
1057
+ if self.config._attn_implementation == "sdpa":
1058
+ # For SDPA, when possible, we will rely on its `is_causal` argument instead of its `attn_mask` argument,
1059
+ # in order to dispatch on Flash Attention 2.
1060
+ if AttentionMaskConverter._ignore_causal_mask_sdpa(
1061
+ attention_mask, inputs_embeds=input_tensor, past_key_values_length=past_seen_tokens
1062
+ ):
1063
+ return None
1064
+
1065
+ dtype, device = input_tensor.dtype, input_tensor.device
1066
+ min_dtype = torch.finfo(dtype).min
1067
+ sequence_length = input_tensor.shape[1]
1068
+ if hasattr(getattr(self.layers[0], "self_attn", {}), "past_key_value"): # static cache
1069
+ target_length = self.config.max_position_embeddings
1070
+ else: # dynamic cache
1071
+ target_length = (
1072
+ attention_mask.shape[-1]
1073
+ if isinstance(attention_mask, torch.Tensor)
1074
+ else past_seen_tokens + sequence_length + 1
1075
+ )
1076
+
1077
+ causal_mask = torch.full((sequence_length, target_length), fill_value=min_dtype, dtype=dtype, device=device)
1078
+ if sequence_length != 1:
1079
+ causal_mask = torch.triu(causal_mask, diagonal=1)
1080
+ causal_mask *= torch.arange(target_length, device=device) > cache_position.reshape(-1, 1)
1081
+ causal_mask = causal_mask[None, None, :, :].expand(input_tensor.shape[0], 1, -1, -1)
1082
+ if attention_mask is not None:
1083
+ causal_mask = causal_mask.clone() # copy to contiguous memory for in-place edit
1084
+ if attention_mask.dim() == 2:
1085
+ mask_length = attention_mask.shape[-1]
1086
+ padding_mask = causal_mask[..., :mask_length].eq(0.0) * attention_mask[:, None, None, :].eq(0.0)
1087
+ causal_mask[..., :mask_length] = causal_mask[..., :mask_length].masked_fill(padding_mask, min_dtype)
1088
+ elif attention_mask.dim() == 4:
1089
+ # backwards compatibility: we allow passing a 4D attention mask shorter than the input length with
1090
+ # cache. In that case, the 4D attention mask attends to the newest tokens only.
1091
+ if attention_mask.shape[-2] < cache_position[0] + sequence_length:
1092
+ offset = cache_position[0]
1093
+ else:
1094
+ offset = 0
1095
+ mask_shape = attention_mask.shape
1096
+ mask_slice = (attention_mask.eq(0.0)).to(dtype=dtype) * min_dtype
1097
+ causal_mask[
1098
+ : mask_shape[0], : mask_shape[1], offset : mask_shape[2] + offset, : mask_shape[3]
1099
+ ] = mask_slice
1100
+
1101
+ if (
1102
+ self.config._attn_implementation == "sdpa"
1103
+ and attention_mask is not None
1104
+ and attention_mask.device.type == "cuda"
1105
+ ):
1106
+ # Attend to all tokens in fully masked rows in the causal_mask, for example the relevant first rows when
1107
+ # using left padding. This is required by F.scaled_dot_product_attention memory-efficient attention path.
1108
+ # Details: https://github.com/pytorch/pytorch/issues/110213
1109
+ causal_mask = AttentionMaskConverter._unmask_unattended(causal_mask, min_dtype)
1110
+
1111
+ return causal_mask
1112
+
1113
+
1114
+ class LlamaForCausalLM(LlamaPreTrainedModel):
1115
+ _tied_weights_keys = ["lm_head.weight"]
1116
+
1117
+ def __init__(self, config):
1118
+ super().__init__(config)
1119
+ self.model = LlamaModel(config)
1120
+ self.vocab_size = config.vocab_size
1121
+ self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
1122
+
1123
+ # Initialize weights and apply final processing
1124
+ self.post_init()
1125
+
1126
+ def get_input_embeddings(self):
1127
+ return self.model.embed_tokens
1128
+
1129
+ def set_input_embeddings(self, value):
1130
+ self.model.embed_tokens = value
1131
+
1132
+ def get_output_embeddings(self):
1133
+ return self.lm_head
1134
+
1135
+ def set_output_embeddings(self, new_embeddings):
1136
+ self.lm_head = new_embeddings
1137
+
1138
+ def set_decoder(self, decoder):
1139
+ self.model = decoder
1140
+
1141
+ def get_decoder(self):
1142
+ return self.model
1143
+
1144
+ @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING)
1145
+ @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
1146
+ def forward(
1147
+ self,
1148
+ input_ids: torch.LongTensor = None,
1149
+ attention_mask: Optional[torch.Tensor] = None,
1150
+ position_ids: Optional[torch.LongTensor] = None,
1151
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1152
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1153
+ labels: Optional[torch.LongTensor] = None,
1154
+ use_cache: Optional[bool] = None,
1155
+ output_attentions: Optional[bool] = None,
1156
+ output_hidden_states: Optional[bool] = None,
1157
+ return_dict: Optional[bool] = None,
1158
+ cache_position: Optional[torch.LongTensor] = None,
1159
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
1160
+ r"""
1161
+ Args:
1162
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
1163
+ Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
1164
+ config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
1165
+ (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
1166
+
1167
+ Returns:
1168
+
1169
+ Example:
1170
+
1171
+ ```python
1172
+ >>> from transformers import AutoTokenizer, LlamaForCausalLM
1173
+
1174
+ >>> model = LlamaForCausalLM.from_pretrained("meta-llama/Llama-2-7b-hf")
1175
+ >>> tokenizer = AutoTokenizer.from_pretrained("meta-llama/Llama-2-7b-hf")
1176
+
1177
+ >>> prompt = "Hey, are you conscious? Can you talk to me?"
1178
+ >>> inputs = tokenizer(prompt, return_tensors="pt")
1179
+
1180
+ >>> # Generate
1181
+ >>> generate_ids = model.generate(inputs.input_ids, max_length=30)
1182
+ >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
1183
+ "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
1184
+ ```"""
1185
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1186
+ output_hidden_states = (
1187
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1188
+ )
1189
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1190
+
1191
+ # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
1192
+ outputs = self.model(
1193
+ input_ids=input_ids,
1194
+ attention_mask=attention_mask,
1195
+ position_ids=position_ids,
1196
+ past_key_values=past_key_values,
1197
+ inputs_embeds=inputs_embeds,
1198
+ use_cache=use_cache,
1199
+ output_attentions=output_attentions,
1200
+ output_hidden_states=output_hidden_states,
1201
+ return_dict=return_dict,
1202
+ cache_position=cache_position,
1203
+ )
1204
+
1205
+ hidden_states = outputs[0]
1206
+ if self.config.pretraining_tp > 1:
1207
+ lm_head_slices = self.lm_head.weight.split(self.vocab_size // self.config.pretraining_tp, dim=0)
1208
+ logits = [F.linear(hidden_states, lm_head_slices[i]) for i in range(self.config.pretraining_tp)]
1209
+ logits = torch.cat(logits, dim=-1)
1210
+ else:
1211
+ logits = self.lm_head(hidden_states)
1212
+ logits = logits.float()
1213
+
1214
+ loss = None
1215
+ if labels is not None:
1216
+ # Shift so that tokens < n predict n
1217
+ shift_logits = logits[..., :-1, :].contiguous()
1218
+ shift_labels = labels[..., 1:].contiguous()
1219
+ # Flatten the tokens
1220
+ loss_fct = CrossEntropyLoss()
1221
+ shift_logits = shift_logits.view(-1, self.config.vocab_size)
1222
+ shift_labels = shift_labels.view(-1)
1223
+ # Enable model parallelism
1224
+ shift_labels = shift_labels.to(shift_logits.device)
1225
+ loss = loss_fct(shift_logits, shift_labels)
1226
+
1227
+ if not return_dict:
1228
+ output = (logits,) + outputs[1:]
1229
+ return (loss,) + output if loss is not None else output
1230
+
1231
+ return CausalLMOutputWithPast(
1232
+ loss=loss,
1233
+ logits=logits,
1234
+ past_key_values=outputs.past_key_values,
1235
+ hidden_states=outputs.hidden_states,
1236
+ attentions=outputs.attentions,
1237
+ )
1238
+
1239
+ def prepare_inputs_for_generation(
1240
+ self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, cache_position=None, **kwargs
1241
+ ):
1242
+ # With static cache, the `past_key_values` is None
1243
+ # TODO joao: standardize interface for the different Cache classes and remove of this if
1244
+ has_static_cache = False
1245
+ if past_key_values is None:
1246
+ past_key_values = getattr(getattr(self.model.layers[0], "self_attn", {}), "past_key_value", None)
1247
+ has_static_cache = past_key_values is not None
1248
+
1249
+ past_length = 0
1250
+ if past_key_values is not None:
1251
+ if isinstance(past_key_values, Cache):
1252
+ past_length = cache_position[0] if cache_position is not None else past_key_values.get_seq_length()
1253
+ max_cache_length = (
1254
+ torch.tensor(past_key_values.get_max_length(), device=input_ids.device)
1255
+ if past_key_values.get_max_length() is not None
1256
+ else None
1257
+ )
1258
+ cache_length = past_length if max_cache_length is None else torch.min(max_cache_length, past_length)
1259
+ # TODO joao: remove this `else` after `generate` prioritizes `Cache` objects
1260
+ else:
1261
+ cache_length = past_length = past_key_values[0][0].shape[2]
1262
+ max_cache_length = None
1263
+
1264
+ # Keep only the unprocessed tokens:
1265
+ # 1 - If the length of the attention_mask exceeds the length of input_ids, then we are in a setting where
1266
+ # some of the inputs are exclusively passed as part of the cache (e.g. when passing input_embeds as
1267
+ # input)
1268
+ if attention_mask is not None and attention_mask.shape[1] > input_ids.shape[1]:
1269
+ input_ids = input_ids[:, -(attention_mask.shape[1] - past_length) :]
1270
+ # 2 - If the past_length is smaller than input_ids', then input_ids holds all input tokens. We can discard
1271
+ # input_ids based on the past_length.
1272
+ elif past_length < input_ids.shape[1]:
1273
+ input_ids = input_ids[:, past_length:]
1274
+ # 3 - Otherwise (past_length >= input_ids.shape[1]), let's assume input_ids only has unprocessed tokens.
1275
+
1276
+ # If we are about to go beyond the maximum cache length, we need to crop the input attention mask.
1277
+ if (
1278
+ max_cache_length is not None
1279
+ and attention_mask is not None
1280
+ and cache_length + input_ids.shape[1] > max_cache_length
1281
+ ):
1282
+ attention_mask = attention_mask[:, -max_cache_length:]
1283
+
1284
+ position_ids = kwargs.get("position_ids", None)
1285
+ if attention_mask is not None and position_ids is None:
1286
+ # create position_ids on the fly for batch generation
1287
+ position_ids = attention_mask.long().cumsum(-1) - 1
1288
+ position_ids.masked_fill_(attention_mask == 0, 1)
1289
+ if past_key_values:
1290
+ position_ids = position_ids[:, -input_ids.shape[1] :]
1291
+
1292
+ # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
1293
+ if inputs_embeds is not None and past_key_values is None:
1294
+ model_inputs = {"inputs_embeds": inputs_embeds}
1295
+ else:
1296
+ # The `contiguous()` here is necessary to have a static stride during decoding. torchdynamo otherwise
1297
+ # recompiles graphs as the stride of the inputs is a guard. Ref: https://github.com/huggingface/transformers/pull/29114
1298
+ # TODO: use `next_tokens` directly instead.
1299
+ model_inputs = {"input_ids": input_ids.contiguous()}
1300
+
1301
+ input_length = position_ids.shape[-1] if position_ids is not None else input_ids.shape[-1]
1302
+ if cache_position is None:
1303
+ cache_position = torch.arange(past_length, past_length + input_length, device=input_ids.device)
1304
+ else:
1305
+ cache_position = cache_position[-input_length:]
1306
+
1307
+ if has_static_cache:
1308
+ past_key_values = None
1309
+
1310
+ model_inputs.update(
1311
+ {
1312
+ "position_ids": position_ids,
1313
+ "cache_position": cache_position,
1314
+ "past_key_values": past_key_values,
1315
+ "use_cache": kwargs.get("use_cache"),
1316
+ "attention_mask": attention_mask,
1317
+ }
1318
+ )
1319
+ return model_inputs
1320
+
1321
+ @staticmethod
1322
+ def _reorder_cache(past_key_values, beam_idx):
1323
+ reordered_past = ()
1324
+ for layer_past in past_key_values:
1325
+ reordered_past += (
1326
+ tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
1327
+ )
1328
+ return reordered_past
1329
+
1330
+
1331
+ @add_start_docstrings(
1332
+ """
1333
+ The LLaMa Model transformer with a sequence classification head on top (linear layer).
1334
+
1335
+ [`LlamaForSequenceClassification`] uses the last token in order to do the classification, as other causal models
1336
+ (e.g. GPT-2) do.
1337
+
1338
+ Since it does classification on the last token, it requires to know the position of the last token. If a
1339
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
1340
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
1341
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
1342
+ each row of the batch).
1343
+ """,
1344
+ LLAMA_START_DOCSTRING,
1345
+ )
1346
+ class LlamaForSequenceClassification(LlamaPreTrainedModel):
1347
+ def __init__(self, config):
1348
+ super().__init__(config)
1349
+ self.num_labels = config.num_labels
1350
+ self.model = LlamaModel(config)
1351
+ self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False)
1352
+
1353
+ # Initialize weights and apply final processing
1354
+ self.post_init()
1355
+
1356
+ def get_input_embeddings(self):
1357
+ return self.model.embed_tokens
1358
+
1359
+ def set_input_embeddings(self, value):
1360
+ self.model.embed_tokens = value
1361
+
1362
+ @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING)
1363
+ def forward(
1364
+ self,
1365
+ input_ids: torch.LongTensor = None,
1366
+ attention_mask: Optional[torch.Tensor] = None,
1367
+ position_ids: Optional[torch.LongTensor] = None,
1368
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1369
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1370
+ labels: Optional[torch.LongTensor] = None,
1371
+ use_cache: Optional[bool] = None,
1372
+ output_attentions: Optional[bool] = None,
1373
+ output_hidden_states: Optional[bool] = None,
1374
+ return_dict: Optional[bool] = None,
1375
+ ) -> Union[Tuple, SequenceClassifierOutputWithPast]:
1376
+ r"""
1377
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1378
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1379
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1380
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1381
+ """
1382
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1383
+
1384
+ transformer_outputs = self.model(
1385
+ input_ids,
1386
+ attention_mask=attention_mask,
1387
+ position_ids=position_ids,
1388
+ past_key_values=past_key_values,
1389
+ inputs_embeds=inputs_embeds,
1390
+ use_cache=use_cache,
1391
+ output_attentions=output_attentions,
1392
+ output_hidden_states=output_hidden_states,
1393
+ return_dict=return_dict,
1394
+ )
1395
+ hidden_states = transformer_outputs[0]
1396
+ logits = self.score(hidden_states)
1397
+
1398
+ if input_ids is not None:
1399
+ batch_size = input_ids.shape[0]
1400
+ else:
1401
+ batch_size = inputs_embeds.shape[0]
1402
+
1403
+ if self.config.pad_token_id is None and batch_size != 1:
1404
+ raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
1405
+ if self.config.pad_token_id is None:
1406
+ sequence_lengths = -1
1407
+ else:
1408
+ if input_ids is not None:
1409
+ # if no pad token found, use modulo instead of reverse indexing for ONNX compatibility
1410
+ sequence_lengths = torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1
1411
+ sequence_lengths = sequence_lengths % input_ids.shape[-1]
1412
+ sequence_lengths = sequence_lengths.to(logits.device)
1413
+ else:
1414
+ sequence_lengths = -1
1415
+
1416
+ pooled_logits = logits[torch.arange(batch_size, device=logits.device), sequence_lengths]
1417
+
1418
+ loss = None
1419
+ if labels is not None:
1420
+ labels = labels.to(logits.device)
1421
+ if self.config.problem_type is None:
1422
+ if self.num_labels == 1:
1423
+ self.config.problem_type = "regression"
1424
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
1425
+ self.config.problem_type = "single_label_classification"
1426
+ else:
1427
+ self.config.problem_type = "multi_label_classification"
1428
+
1429
+ if self.config.problem_type == "regression":
1430
+ loss_fct = MSELoss()
1431
+ if self.num_labels == 1:
1432
+ loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
1433
+ else:
1434
+ loss = loss_fct(pooled_logits, labels)
1435
+ elif self.config.problem_type == "single_label_classification":
1436
+ loss_fct = CrossEntropyLoss()
1437
+ loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
1438
+ elif self.config.problem_type == "multi_label_classification":
1439
+ loss_fct = BCEWithLogitsLoss()
1440
+ loss = loss_fct(pooled_logits, labels)
1441
+ if not return_dict:
1442
+ output = (pooled_logits,) + transformer_outputs[1:]
1443
+ return ((loss,) + output) if loss is not None else output
1444
+
1445
+ return SequenceClassifierOutputWithPast(
1446
+ loss=loss,
1447
+ logits=pooled_logits,
1448
+ past_key_values=transformer_outputs.past_key_values,
1449
+ hidden_states=transformer_outputs.hidden_states,
1450
+ attentions=transformer_outputs.attentions,
1451
+ )
1452
+
1453
+
1454
+ @add_start_docstrings(
1455
+ """
1456
+ The Llama Model transformer with a span classification head on top for extractive question-answering tasks like
1457
+ SQuAD (a linear layer on top of the hidden-states output to compute `span start logits` and `span end logits`).
1458
+ """,
1459
+ LLAMA_START_DOCSTRING,
1460
+ )
1461
+ class LlamaForQuestionAnswering(LlamaPreTrainedModel):
1462
+ base_model_prefix = "transformer"
1463
+
1464
+ # Copied from transformers.models.bloom.modeling_bloom.BloomForQuestionAnswering.__init__ with Bloom->Llama
1465
+ def __init__(self, config):
1466
+ super().__init__(config)
1467
+ self.transformer = LlamaModel(config)
1468
+ self.qa_outputs = nn.Linear(config.hidden_size, 2)
1469
+
1470
+ # Initialize weights and apply final processing
1471
+ self.post_init()
1472
+
1473
+ def get_input_embeddings(self):
1474
+ return self.transformer.embed_tokens
1475
+
1476
+ def set_input_embeddings(self, value):
1477
+ self.transformer.embed_tokens = value
1478
+
1479
+ @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING)
1480
+ def forward(
1481
+ self,
1482
+ input_ids: Optional[torch.LongTensor] = None,
1483
+ attention_mask: Optional[torch.FloatTensor] = None,
1484
+ position_ids: Optional[torch.LongTensor] = None,
1485
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1486
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1487
+ start_positions: Optional[torch.LongTensor] = None,
1488
+ end_positions: Optional[torch.LongTensor] = None,
1489
+ output_attentions: Optional[bool] = None,
1490
+ output_hidden_states: Optional[bool] = None,
1491
+ return_dict: Optional[bool] = None,
1492
+ ) -> Union[Tuple, QuestionAnsweringModelOutput]:
1493
+ r"""
1494
+ start_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1495
+ Labels for position (index) of the start of the labelled span for computing the token classification loss.
1496
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1497
+ are not taken into account for computing the loss.
1498
+ end_positions (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1499
+ Labels for position (index) of the end of the labelled span for computing the token classification loss.
1500
+ Positions are clamped to the length of the sequence (`sequence_length`). Position outside of the sequence
1501
+ are not taken into account for computing the loss.
1502
+ """
1503
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1504
+
1505
+ outputs = self.transformer(
1506
+ input_ids,
1507
+ attention_mask=attention_mask,
1508
+ position_ids=position_ids,
1509
+ past_key_values=past_key_values,
1510
+ inputs_embeds=inputs_embeds,
1511
+ output_attentions=output_attentions,
1512
+ output_hidden_states=output_hidden_states,
1513
+ return_dict=return_dict,
1514
+ )
1515
+
1516
+ sequence_output = outputs[0]
1517
+
1518
+ logits = self.qa_outputs(sequence_output)
1519
+ start_logits, end_logits = logits.split(1, dim=-1)
1520
+ start_logits = start_logits.squeeze(-1).contiguous()
1521
+ end_logits = end_logits.squeeze(-1).contiguous()
1522
+
1523
+ total_loss = None
1524
+ if start_positions is not None and end_positions is not None:
1525
+ # If we are on multi-GPU, split add a dimension
1526
+ if len(start_positions.size()) > 1:
1527
+ start_positions = start_positions.squeeze(-1).to(start_logits.device)
1528
+ if len(end_positions.size()) > 1:
1529
+ end_positions = end_positions.squeeze(-1).to(end_logits.device)
1530
+ # sometimes the start/end positions are outside our model inputs, we ignore these terms
1531
+ ignored_index = start_logits.size(1)
1532
+ start_positions = start_positions.clamp(0, ignored_index)
1533
+ end_positions = end_positions.clamp(0, ignored_index)
1534
+
1535
+ loss_fct = CrossEntropyLoss(ignore_index=ignored_index)
1536
+ start_loss = loss_fct(start_logits, start_positions)
1537
+ end_loss = loss_fct(end_logits, end_positions)
1538
+ total_loss = (start_loss + end_loss) / 2
1539
+
1540
+ if not return_dict:
1541
+ output = (start_logits, end_logits) + outputs[2:]
1542
+ return ((total_loss,) + output) if total_loss is not None else output
1543
+
1544
+ return QuestionAnsweringModelOutput(
1545
+ loss=total_loss,
1546
+ start_logits=start_logits,
1547
+ end_logits=end_logits,
1548
+ hidden_states=outputs.hidden_states,
1549
+ attentions=outputs.attentions,
1550
+ )
special_tokens_map.json ADDED
@@ -0,0 +1,4 @@
 
 
 
 
 
1
+ {
2
+ "bos_token": "<|begin_of_text|>",
3
+ "eos_token": "<|end_of_text|>"
4
+ }
tokenizer.json ADDED
The diff for this file is too large to render. See raw diff
 
tokenizer_config.json ADDED
@@ -0,0 +1,2061 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "added_tokens_decoder": {
3
+ "128000": {
4
+ "content": "<|begin_of_text|>",
5
+ "lstrip": false,
6
+ "normalized": false,
7
+ "rstrip": false,
8
+ "single_word": false,
9
+ "special": true
10
+ },
11
+ "128001": {
12
+ "content": "<|end_of_text|>",
13
+ "lstrip": false,
14
+ "normalized": false,
15
+ "rstrip": false,
16
+ "single_word": false,
17
+ "special": true
18
+ },
19
+ "128002": {
20
+ "content": "<|reserved_special_token_0|>",
21
+ "lstrip": false,
22
+ "normalized": false,
23
+ "rstrip": false,
24
+ "single_word": false,
25
+ "special": true
26
+ },
27
+ "128003": {
28
+ "content": "<|reserved_special_token_1|>",
29
+ "lstrip": false,
30
+ "normalized": false,
31
+ "rstrip": false,
32
+ "single_word": false,
33
+ "special": true
34
+ },
35
+ "128004": {
36
+ "content": "<|reserved_special_token_2|>",
37
+ "lstrip": false,
38
+ "normalized": false,
39
+ "rstrip": false,
40
+ "single_word": false,
41
+ "special": true
42
+ },
43
+ "128005": {
44
+ "content": "<|reserved_special_token_3|>",
45
+ "lstrip": false,
46
+ "normalized": false,
47
+ "rstrip": false,
48
+ "single_word": false,
49
+ "special": true
50
+ },
51
+ "128006": {
52
+ "content": "<|start_header_id|>",
53
+ "lstrip": false,
54
+ "normalized": false,
55
+ "rstrip": false,
56
+ "single_word": false,
57
+ "special": true
58
+ },
59
+ "128007": {
60
+ "content": "<|end_header_id|>",
61
+ "lstrip": false,
62
+ "normalized": false,
63
+ "rstrip": false,
64
+ "single_word": false,
65
+ "special": true
66
+ },
67
+ "128008": {
68
+ "content": "<|reserved_special_token_4|>",
69
+ "lstrip": false,
70
+ "normalized": false,
71
+ "rstrip": false,
72
+ "single_word": false,
73
+ "special": true
74
+ },
75
+ "128009": {
76
+ "content": "<|eot_id|>",
77
+ "lstrip": false,
78
+ "normalized": false,
79
+ "rstrip": false,
80
+ "single_word": false,
81
+ "special": true
82
+ },
83
+ "128010": {
84
+ "content": "<|reserved_special_token_5|>",
85
+ "lstrip": false,
86
+ "normalized": false,
87
+ "rstrip": false,
88
+ "single_word": false,
89
+ "special": true
90
+ },
91
+ "128011": {
92
+ "content": "<|reserved_special_token_6|>",
93
+ "lstrip": false,
94
+ "normalized": false,
95
+ "rstrip": false,
96
+ "single_word": false,
97
+ "special": true
98
+ },
99
+ "128012": {
100
+ "content": "<|reserved_special_token_7|>",
101
+ "lstrip": false,
102
+ "normalized": false,
103
+ "rstrip": false,
104
+ "single_word": false,
105
+ "special": true
106
+ },
107
+ "128013": {
108
+ "content": "<|reserved_special_token_8|>",
109
+ "lstrip": false,
110
+ "normalized": false,
111
+ "rstrip": false,
112
+ "single_word": false,
113
+ "special": true
114
+ },
115
+ "128014": {
116
+ "content": "<|reserved_special_token_9|>",
117
+ "lstrip": false,
118
+ "normalized": false,
119
+ "rstrip": false,
120
+ "single_word": false,
121
+ "special": true
122
+ },
123
+ "128015": {
124
+ "content": "<|reserved_special_token_10|>",
125
+ "lstrip": false,
126
+ "normalized": false,
127
+ "rstrip": false,
128
+ "single_word": false,
129
+ "special": true
130
+ },
131
+ "128016": {
132
+ "content": "<|reserved_special_token_11|>",
133
+ "lstrip": false,
134
+ "normalized": false,
135
+ "rstrip": false,
136
+ "single_word": false,
137
+ "special": true
138
+ },
139
+ "128017": {
140
+ "content": "<|reserved_special_token_12|>",
141
+ "lstrip": false,
142
+ "normalized": false,
143
+ "rstrip": false,
144
+ "single_word": false,
145
+ "special": true
146
+ },
147
+ "128018": {
148
+ "content": "<|reserved_special_token_13|>",
149
+ "lstrip": false,
150
+ "normalized": false,
151
+ "rstrip": false,
152
+ "single_word": false,
153
+ "special": true
154
+ },
155
+ "128019": {
156
+ "content": "<|reserved_special_token_14|>",
157
+ "lstrip": false,
158
+ "normalized": false,
159
+ "rstrip": false,
160
+ "single_word": false,
161
+ "special": true
162
+ },
163
+ "128020": {
164
+ "content": "<|reserved_special_token_15|>",
165
+ "lstrip": false,
166
+ "normalized": false,
167
+ "rstrip": false,
168
+ "single_word": false,
169
+ "special": true
170
+ },
171
+ "128021": {
172
+ "content": "<|reserved_special_token_16|>",
173
+ "lstrip": false,
174
+ "normalized": false,
175
+ "rstrip": false,
176
+ "single_word": false,
177
+ "special": true
178
+ },
179
+ "128022": {
180
+ "content": "<|reserved_special_token_17|>",
181
+ "lstrip": false,
182
+ "normalized": false,
183
+ "rstrip": false,
184
+ "single_word": false,
185
+ "special": true
186
+ },
187
+ "128023": {
188
+ "content": "<|reserved_special_token_18|>",
189
+ "lstrip": false,
190
+ "normalized": false,
191
+ "rstrip": false,
192
+ "single_word": false,
193
+ "special": true
194
+ },
195
+ "128024": {
196
+ "content": "<|reserved_special_token_19|>",
197
+ "lstrip": false,
198
+ "normalized": false,
199
+ "rstrip": false,
200
+ "single_word": false,
201
+ "special": true
202
+ },
203
+ "128025": {
204
+ "content": "<|reserved_special_token_20|>",
205
+ "lstrip": false,
206
+ "normalized": false,
207
+ "rstrip": false,
208
+ "single_word": false,
209
+ "special": true
210
+ },
211
+ "128026": {
212
+ "content": "<|reserved_special_token_21|>",
213
+ "lstrip": false,
214
+ "normalized": false,
215
+ "rstrip": false,
216
+ "single_word": false,
217
+ "special": true
218
+ },
219
+ "128027": {
220
+ "content": "<|reserved_special_token_22|>",
221
+ "lstrip": false,
222
+ "normalized": false,
223
+ "rstrip": false,
224
+ "single_word": false,
225
+ "special": true
226
+ },
227
+ "128028": {
228
+ "content": "<|reserved_special_token_23|>",
229
+ "lstrip": false,
230
+ "normalized": false,
231
+ "rstrip": false,
232
+ "single_word": false,
233
+ "special": true
234
+ },
235
+ "128029": {
236
+ "content": "<|reserved_special_token_24|>",
237
+ "lstrip": false,
238
+ "normalized": false,
239
+ "rstrip": false,
240
+ "single_word": false,
241
+ "special": true
242
+ },
243
+ "128030": {
244
+ "content": "<|reserved_special_token_25|>",
245
+ "lstrip": false,
246
+ "normalized": false,
247
+ "rstrip": false,
248
+ "single_word": false,
249
+ "special": true
250
+ },
251
+ "128031": {
252
+ "content": "<|reserved_special_token_26|>",
253
+ "lstrip": false,
254
+ "normalized": false,
255
+ "rstrip": false,
256
+ "single_word": false,
257
+ "special": true
258
+ },
259
+ "128032": {
260
+ "content": "<|reserved_special_token_27|>",
261
+ "lstrip": false,
262
+ "normalized": false,
263
+ "rstrip": false,
264
+ "single_word": false,
265
+ "special": true
266
+ },
267
+ "128033": {
268
+ "content": "<|reserved_special_token_28|>",
269
+ "lstrip": false,
270
+ "normalized": false,
271
+ "rstrip": false,
272
+ "single_word": false,
273
+ "special": true
274
+ },
275
+ "128034": {
276
+ "content": "<|reserved_special_token_29|>",
277
+ "lstrip": false,
278
+ "normalized": false,
279
+ "rstrip": false,
280
+ "single_word": false,
281
+ "special": true
282
+ },
283
+ "128035": {
284
+ "content": "<|reserved_special_token_30|>",
285
+ "lstrip": false,
286
+ "normalized": false,
287
+ "rstrip": false,
288
+ "single_word": false,
289
+ "special": true
290
+ },
291
+ "128036": {
292
+ "content": "<|reserved_special_token_31|>",
293
+ "lstrip": false,
294
+ "normalized": false,
295
+ "rstrip": false,
296
+ "single_word": false,
297
+ "special": true
298
+ },
299
+ "128037": {
300
+ "content": "<|reserved_special_token_32|>",
301
+ "lstrip": false,
302
+ "normalized": false,
303
+ "rstrip": false,
304
+ "single_word": false,
305
+ "special": true
306
+ },
307
+ "128038": {
308
+ "content": "<|reserved_special_token_33|>",
309
+ "lstrip": false,
310
+ "normalized": false,
311
+ "rstrip": false,
312
+ "single_word": false,
313
+ "special": true
314
+ },
315
+ "128039": {
316
+ "content": "<|reserved_special_token_34|>",
317
+ "lstrip": false,
318
+ "normalized": false,
319
+ "rstrip": false,
320
+ "single_word": false,
321
+ "special": true
322
+ },
323
+ "128040": {
324
+ "content": "<|reserved_special_token_35|>",
325
+ "lstrip": false,
326
+ "normalized": false,
327
+ "rstrip": false,
328
+ "single_word": false,
329
+ "special": true
330
+ },
331
+ "128041": {
332
+ "content": "<|reserved_special_token_36|>",
333
+ "lstrip": false,
334
+ "normalized": false,
335
+ "rstrip": false,
336
+ "single_word": false,
337
+ "special": true
338
+ },
339
+ "128042": {
340
+ "content": "<|reserved_special_token_37|>",
341
+ "lstrip": false,
342
+ "normalized": false,
343
+ "rstrip": false,
344
+ "single_word": false,
345
+ "special": true
346
+ },
347
+ "128043": {
348
+ "content": "<|reserved_special_token_38|>",
349
+ "lstrip": false,
350
+ "normalized": false,
351
+ "rstrip": false,
352
+ "single_word": false,
353
+ "special": true
354
+ },
355
+ "128044": {
356
+ "content": "<|reserved_special_token_39|>",
357
+ "lstrip": false,
358
+ "normalized": false,
359
+ "rstrip": false,
360
+ "single_word": false,
361
+ "special": true
362
+ },
363
+ "128045": {
364
+ "content": "<|reserved_special_token_40|>",
365
+ "lstrip": false,
366
+ "normalized": false,
367
+ "rstrip": false,
368
+ "single_word": false,
369
+ "special": true
370
+ },
371
+ "128046": {
372
+ "content": "<|reserved_special_token_41|>",
373
+ "lstrip": false,
374
+ "normalized": false,
375
+ "rstrip": false,
376
+ "single_word": false,
377
+ "special": true
378
+ },
379
+ "128047": {
380
+ "content": "<|reserved_special_token_42|>",
381
+ "lstrip": false,
382
+ "normalized": false,
383
+ "rstrip": false,
384
+ "single_word": false,
385
+ "special": true
386
+ },
387
+ "128048": {
388
+ "content": "<|reserved_special_token_43|>",
389
+ "lstrip": false,
390
+ "normalized": false,
391
+ "rstrip": false,
392
+ "single_word": false,
393
+ "special": true
394
+ },
395
+ "128049": {
396
+ "content": "<|reserved_special_token_44|>",
397
+ "lstrip": false,
398
+ "normalized": false,
399
+ "rstrip": false,
400
+ "single_word": false,
401
+ "special": true
402
+ },
403
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