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fix subprocess id determination #146

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fix subprocess id determination #146

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2 changes: 1 addition & 1 deletion data_gen/utils/process_video/extract_segment_imgs.py
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Original file line number Diff line number Diff line change
Expand Up @@ -308,7 +308,7 @@ def extract_segment_job(
if "cuda" in device:
# determine which cuda index from subprocess id
pname = multiprocessing.current_process().name
pid = int(pname.rsplit("-", 1)[-1]) - 1
pid = 0 if pname == "MainProcess" else int(pname.rsplit("-", 1)[-1]) - 1
cuda_id = pid % total_gpus
device = f"cuda:{cuda_id}"

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