[ET-VK][ez] Add a setting to disable multithreading when compiler shaders during build #16325
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/16325
Note: Links to docs will display an error until the docs builds have been completed. ❌ 2 New Failures, 1 Unrelated FailureAs of commit 92e66a0 with merge base b8916b7 ( NEW FAILURES - The following jobs have failed:
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…build (#16325) Summary: ## Context Currently, the `gen_vulkan_spv.py` script which orchestrates compute shader compilation for the Vulkan backend uses a thread pool to help parallelize shader compilation. However, when Claude Code is instructed to build ExecuTorch via CMake, it runs into permission issues when trying to launch threads. As a workaround, this PR adds a setting to control the number of threads that is used during shader compilation. 1 will result in serial compilation and -1 will result in querying the number of processors available. Reviewed By: manuelcandales Differential Revision: D89497641 Pulled By: SS-JIA
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Summary:
Context
Currently, the
gen_vulkan_spv.pyscript which orchestrates compute shader compilation for the Vulkan backend uses a thread pool to help parallelize shader compilation.However, when Claude Code is instructed to build ExecuTorch via CMake, it runs into permission issues when trying to launch threads.
As a workaround, this PR adds a setting to control the number of threads that is used during shader compilation. 1 will result in serial compilation and -1 will result in querying the number of processors available.