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Runtime error
File size: 2,826 Bytes
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@llama.cpp
@ctx_shift
Feature: llama.cpp server
Background: Server startup
Given a server listening on localhost:8080
And a model file tinyllamas/stories260K.gguf from HF repo ggml-org/models
And a model file test-model.gguf
And a model alias tinyllama-2
And BOS token is 1
And 42 as server seed
And 256 KV cache size
And 32 as batch size
And 2 slots
# the prompt is 301 tokens
# the slot context is 256/2 = 128 tokens
# the prompt is truncated to keep the last 109 tokens
# 64 tokens are generated thanks to shifting the context when it gets full
Scenario: Inference with context shift
And 64 server max tokens to predict
Then the server is starting
Then the server is healthy
Given a prompt:
"""
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
"""
And a completion request with no api error
Then 64 tokens are predicted matching fun|Annaks|popcorns|pictry|bowl
And the completion is truncated
And 109 prompt tokens are processed
Scenario Outline: Inference without context shift
And <n_predict> server max tokens to predict
And disable context shifting
Then the server is starting
Then the server is healthy
Given a prompt:
"""
Hi how are you
"""
And a completion request with no api error
Then <n_token_output> tokens are predicted matching twind|Anna
And the completion is <truncated> truncated
And 8 prompt tokens are processed
Examples:
| n_predict | n_token_output | truncated |
| 64 | 64 | not |
| -1 | 120 | |
Scenario: Inference without context shift (expected error: prompt too long)
And disable context shifting
Then the server is starting
Then the server is healthy
Given a prompt:
"""
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
"""
And a completion request with 400 api error
|