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[Misc] Allow disabling GPU graph via QD_GPU_GRAPH=0 env var#439

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hughperkins wants to merge 2 commits intomainfrom
hp/gpu-graph-env-var
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[Misc] Allow disabling GPU graph via QD_GPU_GRAPH=0 env var#439
hughperkins wants to merge 2 commits intomainfrom
hp/gpu-graph-env-var

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Issue: #

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copilot:summary

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@hughperkins hughperkins force-pushed the hp/gpu-graph-env-var branch 3 times, most recently from c1aec93 to 8d1314b Compare March 31, 2026 03:14
Override at launch time (not compilation time) so graph_do_while
still compiles correctly but the C++ runtime uses its host-side
fallback loop instead of CUDA graph execution.
@hughperkins hughperkins force-pushed the hp/gpu-graph-env-var branch from 8d1314b to 4f28cd6 Compare March 31, 2026 03:19
@hughperkins hughperkins marked this pull request as draft March 31, 2026 03:19
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I have read every line added in this PR, and reviewed the lines. I take responsibilty for the lines added and removed in this PR, and won't blame any issues on Opus.

@hughperkins hughperkins marked this pull request as ready for review March 31, 2026 03:21
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