Skip to content

fix CUDAGraph memory being counted twice #37426

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
MatthewBonanni merged 4 commits into from
Mar 20, 2026
+2 −3
Merged

fix CUDAGraph memory being counted twice #37426

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
d389ca5
fix CUDAGraph memory being counted twice
panpan0000 Mar 18, 2026
52bb939
Merge branch 'main' into fix_mem_cacu_bug
panpan0000 Mar 18, 2026
b26bc56
Update vllm/v1/worker/gpu_worker.py
panpan0000 Mar 20, 2026
5554db4
Fix accroding to Mat's idea
panpan0000 Mar 20, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 2 additions & 3 deletions vllm/v1/worker/gpu_worker.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -417,9 +417,7 @@ def determine_available_memory(self) -> int:
)

self.non_torch_memory = profile_result.non_torch_increase
self.peak_activation_memory = (
profile_result.torch_peak_increase + cudagraph_memory_estimate_applied
)
self.peak_activation_memory = profile_result.torch_peak_increase
self.cudagraph_memory_estimate = cudagraph_memory_estimate

free_gpu_memory = profile_result.after_profile.free_memory
Expand Down Expand Up @@ -638,6 +636,7 @@ def compile_or_warm_up_model(self) -> float:
# slightly underestimate the memory consumption.
# So leave a small buffer (=150MiB) to avoid OOM.
redundancy_buffer_memory = 150 * (1 << 20)

non_kv_cache_memory = (
self.model_runner.model_memory_usage
+ self.peak_activation_memory
Expand Down
Loading