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completion() for tgi (#295)

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Dinesh Yeduguru 2024-10-24 16:02:41 -07:00 • committed by GitHub
parent cb84034567
commit 3e1c3fdb3f
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9 changed files with 173 additions and 35 deletions
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30
llama_stack/providers/utils/inference/openai_compat.py
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@ -29,9 +29,9 @@ class OpenAICompatCompletionResponse(BaseModel):
choices: List[OpenAICompatCompletionChoice]
def get_sampling_options(request: ChatCompletionRequest) -> dict:
def get_sampling_options(params: SamplingParams) -> dict:
options = {}
if params := request.sampling_params:
if params:
for attr in {"temperature", "top_p", "top_k", "max_tokens"}:
if getattr(params, attr):
options[attr] = getattr(params, attr)
@ -64,7 +64,18 @@ def process_completion_response(
response: OpenAICompatCompletionResponse, formatter: ChatFormat
) -> CompletionResponse:
choice = response.choices[0]
# drop suffix <eot_id> if present and return stop reason as end of turn
if choice.text.endswith("<|eot_id|>"):
return CompletionResponse(
stop_reason=StopReason.end_of_turn,
content=choice.text[: -len("<|eot_id|>")],
)
# drop suffix <eom_id> if present and return stop reason as end of message
if choice.text.endswith("<|eom_id|>"):
return CompletionResponse(
stop_reason=StopReason.end_of_message,
content=choice.text[: -len("<|eom_id|>")],
)
return CompletionResponse(
stop_reason=get_stop_reason(choice.finish_reason),
content=choice.text,
@ -95,13 +106,6 @@ async def process_completion_stream_response(
choice = chunk.choices[0]
finish_reason = choice.finish_reason
if finish_reason:
if finish_reason in ["stop", "eos", "eos_token"]:
stop_reason = StopReason.end_of_turn
elif finish_reason == "length":
stop_reason = StopReason.out_of_tokens
break
text = text_from_choice(choice)
if text == "<|eot_id|>":
stop_reason = StopReason.end_of_turn
@ -115,6 +119,12 @@ async def process_completion_stream_response(
delta=text,
stop_reason=stop_reason,
)
if finish_reason:
if finish_reason in ["stop", "eos", "eos_token"]:
stop_reason = StopReason.end_of_turn
elif finish_reason == "length":
stop_reason = StopReason.out_of_tokens
break
yield CompletionResponseStreamChunk(
delta="",