---
license: cc-by-sa-3.0
language:
- en
pipeline_tag: text-generation
tags:
- csharp
- mpt
- instruct
- 1b
- llm
- .net
---
Upsides:
 - similar in quality (slightly worse) for C# code generation and explanation as 7b [Nethermind/Mpt-Instruct-DotNet-S](https://huggingface.co/Nethermind/Mpt-Instruct-DotNet-S),
 - 1b params size (2.6gb, bfloat16 finetuned),
 - 6x smaller,
 - 4x+ faster
 

Downsides:
 - Sometimes, sufferers from response repetition-reiteration-not-ending when outputting for general discussion questions
 - Slightly worse in code generation than 7b model
 - No GGML/LLAMA.cpp running on CPU support yet

Based on [mosaicml/mpt-1b-redpajama-200b-dolly](https://huggingface.co/mosaicml/mpt-1b-redpajama-200b-dolly)

Same data sources as in [Nethermind/Mpt-Instruct-DotNet-S](https://huggingface.co/Nethermind/Mpt-Instruct-DotNet-S)

Usage example:
```python
import os
from glob import glob
import torch
import transformers
from transformers import PreTrainedTokenizerFast
from transformers import AutoTokenizer

out_name = "Nethermind/Mpt-Instruct-DotNet-XS"
model = transformers.AutoModelForCausalLM.from_pretrained(
    out_name,
    torch_dtype=torch.bfloat16,
    trust_remote_code=True,
)
model.to('cuda:0')
model.eval()

from markdownify import markdownify as md
from bs4 import BeautifulSoup
from IPython.display import display, Markdown

tokenizer = AutoTokenizer.from_pretrained("EleutherAI/gpt-neox-20b")
tokenizer.pad_token = tokenizer.eos_token

INSTRUCTION_KEY = "### Instruction:"
RESPONSE_KEY = "### Response:"
PROMPT_FOR_GENERATION_FORMAT = """{system}
{instruction_key}
{instruction}
{response_key}
""".format(
    system="{system}",
    instruction_key=INSTRUCTION_KEY,
    instruction="{instruction}",
    response_key=RESPONSE_KEY,
    response="{response}"
)


def output_loop(input_tokens, steps=2000):
    print(input_tokens.shape[1], 2000 - input_tokens.shape[1] )
    input_tokens = model.generate(input_tokens.to('cuda:0'), max_new_tokens=min(512, 1024 - input_tokens.shape[1]), do_sample=False, top_k=1, top_p=0.95)
    return input_tokens
    

def give_answer(instruction="Create a loop over [0, 6, 7 , 77] that prints its contentrs", system="Below is an instruction that describes a task. Write a response that appropriately completes the request.", ):
    question = PROMPT_FOR_GENERATION_FORMAT.format(system=system, instruction=instruction)
    tokenized_question = tokenizer.encode(question ,return_tensors='pt')                    
    outputs = output_loop(tokenized_question)
    answer = tokenizer.batch_decode(outputs, skip_special_tokens=True)
    print(answer)
    return answer

give_answer("What is the main difference between a struct and a class in C#?")
```

outputs:
```
A struct is a value type, which means it can only hold a few values. It is often used as a placeholder for other data types. A class, on the other hand, is a reference type, which means it can hold references to other data types.
```

On RTX 4090 new token sizes:
 - 2sec for 128 tokens
 - 5sec for 256 tokens
 - 11sec for 512 tokens

Code generation:
prompt: 
> Generate code to answer the question.
> 
> How would you retrieve and analyse the fee history for the last 100 blocks and determine the average gas price?

Example of code output:
```csharp
public async Task<decimal> GetFeeHistoryGasPriceAverage()
{
  // Get the fee history
  ResultWrapper<FeeHistoryResults> result = await _ethRpc.eth_feeHistory(100, BlockParameter.Latest,
      new double[] { 50, 75, 90 });
  // Check if the API call succeeded
  if (result.Result!= Result.Success)
  {
     throw new Exception("Failed to retrieve fee history");
  }    
  // Get the gas price average
  decimal averageGasPrice = result.Data.BaseFeePerGas.Average();

  return averageGasPrice;
}
```