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[Fix, NPU] Set soc_info for the NPU device #1149

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[Fix, NPU] Set soc_info for the NPU device #1149

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6 changes: 6 additions & 0 deletions src/liger_kernel/ops/backends/_ascend/ub_manager.py
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Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,12 @@ def _detect_ub_capacity(self) -> int:
if is_npu_available():
try:
from tbe.common.platform import get_soc_spec
from tbe.common.platform import set_current_compile_soc_info

# Set current SOC info for get_soc_spec to work correctly
device = getattr(torch, "npu")
soc_info = device.get_device_name(device.current_device())
set_current_compile_soc_info(soc_info)

# Query UB size (get_soc_spec returns size in bytes)
ub_size_bytes = get_soc_spec("UB_SIZE")
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