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Allow define EC Tensor device #15

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Allow define EC Tensor device #15

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d98a333
Allow define EC Tensor device
knlnguyen1802 Nov 26, 2025
a076bf7
Fix pre-commit
knlnguyen1802 Nov 26, 2025
1ec5e2b
Fix pre-commit
knlnguyen1802 Nov 26, 2025
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2 changes: 2 additions & 0 deletions examples/online_serving/disaggregated_encoder/disagg_1e1p1d_example.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,7 @@ CUDA_VISIBLE_DEVICES="$GPU_E" vllm serve "$MODEL" \
--ec-transfer-config '{
"ec_connector": "ECSharedStorageConnector",
"ec_role": "ec_producer",
"ec_buffer_device": "cuda",
"ec_connector_extra_config": {
"shared_storage_path": "'"$EC_SHARED_STORAGE_PATH"'"
}
Expand All @@ -128,6 +129,7 @@ vllm serve "$MODEL" \
--ec-transfer-config '{
"ec_connector": "ECSharedStorageConnector",
"ec_role": "ec_consumer",
"ec_buffer_device": "cuda",
"ec_connector_extra_config": {
"shared_storage_path": "'"$EC_SHARED_STORAGE_PATH"'"
}
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2 changes: 2 additions & 0 deletions examples/online_serving/disaggregated_encoder/disagg_1e1pd_example.sh
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Expand Up @@ -98,6 +98,7 @@ CUDA_VISIBLE_DEVICES="$GPU_E" vllm serve "$MODEL" \
--ec-transfer-config '{
"ec_connector": "ECSharedStorageConnector",
"ec_role": "ec_producer",
"ec_buffer_device": "cuda",
"ec_connector_extra_config": {
"shared_storage_path": "'"$EC_SHARED_STORAGE_PATH"'"
}
Expand All @@ -119,6 +120,7 @@ CUDA_VISIBLE_DEVICES="$GPU_PD" vllm serve "$MODEL" \
--ec-transfer-config '{
"ec_connector": "ECSharedStorageConnector",
"ec_role": "ec_consumer",
"ec_buffer_device": "cuda",
"ec_connector_extra_config": {
"shared_storage_path": "'"$EC_SHARED_STORAGE_PATH"'"
}
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5 changes: 4 additions & 1 deletion vllm/distributed/ec_transfer/ec_connector/shared_storage_connector.py
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Expand Up @@ -51,10 +51,13 @@ def __init__(self, vllm_config: "VllmConfig", role: ECConnectorRole):
# req_id -> index
self._mm_datas_need_loads: dict[str, int] = {}
transfer_config = vllm_config.ec_transfer_config
self.device = "cuda"
if transfer_config is not None:
self._storage_path = transfer_config.get_from_extra_config(
"shared_storage_path", "/tmp"
)
if transfer_config.ec_buffer_device is not None:
self.device = transfer_config.ec_buffer_device
logger.debug(transfer_config)
logger.debug("Shared storage path is %s", self._storage_path)
else:
Expand Down Expand Up @@ -91,7 +94,7 @@ def start_load_caches(self, encoder_cache, **kwargs) -> None:
if mm_data.mm_hash in encoder_cache:
continue
filename = self._generate_filename_debug(mm_data.mm_hash)
ec_cache = safetensors.torch.load_file(filename)["ec_cache"].cuda()
ec_cache = safetensors.torch.load_file(filename)["ec_cache"].to(self.device)
encoder_cache[mm_data.mm_hash] = ec_cache
logger.debug("Success load encoder cache for hash %s", mm_data.mm_hash)

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