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Add compile option is_prefill_only #363

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Add compile option is_prefill_only #363

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6 changes: 5 additions & 1 deletion QEfficient/base/modeling_qeff.py
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Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,7 @@ def _compile(
custom_io: Optional[Dict[str, str]] = None,
mdp_ts_num_devices: int = 1,
num_speculative_tokens: Optional[int] = None,
is_prefill_only: Optional[bool] = False,
**compiler_options,
) -> str:
"""
Expand All @@ -233,6 +234,7 @@ def _compile(
:custom_io (dict): Custom IO to specify the input and outputs in different formats than default
:mdp_ts_num_devices (int): Number of devices to partition to use Multi-Device Partitioning with tensor-slicing.
:num_speculative_tokens (int, optional): Number of speculative tokens to take as input for Speculative Decoding Target Language Model.
:is_prefill_only (bool, optional): By default it is False. If set to True, only specializations for prefill will be dumped.
:compiler_options: Pass any compiler option as input. Any flag that is supported by `qaic-exec` can be passed. Params are converted to flags as below:
- aic_num_cores=16 -> -aic-num-cores=16
- convert_to_fp16=True -> -convert-to-fp16
Expand All @@ -257,6 +259,8 @@ def _compile(
compile_hash = hashlib.sha256(to_hashable(command))

if specializations is not None:
if is_prefill_only:
specializations = [specializations[0]]
compile_hash.update(to_hashable(specializations))

if custom_io is not None:
Expand Down Expand Up @@ -300,7 +304,7 @@ def _compile(
command.append(f"-custom-IO-list-file={custom_io_yaml}")

# Write mdp_config.json file
if mdp_ts_num_devices > 1:
if mdp_ts_num_devices > 1 and "mdp_load_partition_config" not in compiler_options:
num_cores = compiler_options.get("aic_num_cores", 16)
mdp_ts_json = compile_dir / f"mdp_ts_{mdp_ts_num_devices}.json"
with open(mdp_ts_json, "w") as fp:
Expand Down