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[https://nvbugs/5685143][fix] avoid cudaFree overlap with cuda graph #9438

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Merged
pcastonguay merged 1 commit into from
Nov 26, 2025
Merged

[https://nvbugs/5685143][fix] avoid cudaFree overlap with cuda graph #9438

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4 changes: 4 additions & 0 deletions tensorrt_llm/_torch/pyexecutor/py_executor_creator.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import copy
import gc
import importlib
import os
from concurrent.futures import ThreadPoolExecutor
Expand Down Expand Up @@ -687,6 +688,9 @@ def drafting_loop_wrapper(model):

with allocation_scope(ExecutorMemoryType.EXTRA_RESOURCES,
RestoreMode.PINNED):

# run gc.collect() to free memory of the previous py_executor, avoid cudaFree overlap with cuda graph capture
gc.collect()
py_executor = create_py_executor_instance(
dist=dist,
resources=resources,
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1 change: 0 additions & 1 deletion tests/integration/test_lists/waives.txt
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Expand Up @@ -401,7 +401,6 @@ examples/test_ray.py::test_ray_disaggregated_serving[tp2] SKIP (https://nvbugs/5
full:H100_PCIe/unittest/llmapi/test_llm_pytorch.py::test_llama_7b_multi_lora_evict_and_reload_lora_gpu_cache SKIP (https://nvbugs/5682551)
unittest/_torch/speculative/test_draft_len_schedule.py::test_correctness_across_batch_sizes[model_drafter-schedule1] SKIP (https://nvbugs/5680911)
full:RTXPro6000D/accuracy/test_disaggregated_serving.py::TestDeepSeekV3Lite::test_guided_decoding[xgrammar-mtp_nextn=2] SKIP (https://nvbugs/5684703)
disaggregated/test_disaggregated_single_gpu.py::test_disaggregated_simple_qwen3[True-False-Qwen3-8B-FP8] SKIP (https://nvbugs/5685143)
test_e2e.py::test_openai_responses SKIP (https://nvbugs/5635153)
accuracy/test_llm_api_pytorch.py::TestSeedOss_36B::test_auto_dtype SKIP (https://nvbugs/5612438)
accuracy/test_llm_api_pytorch.py::TestDeepSeekV32::test_nvfp4_multi_gpus[baseline] SKIP (https://nvbugs/5680905)
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