workaround for hanging issue on A770 action #1726
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Otherwise, we get -999 Unknown PI error after second device ref: intel/llvm#10982
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Nov 16, 2024
| cmake .. -DCMAKE_INSTALL_PREFIX=install_ginkgo -DCMAKE_CXX_FLAGS="-Wpedantic -ffp-model=precise" -DCMAKE_CXX_COMPILER=${{ matrix.config.compiler }} -DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} -DGINKGO_MIXED_PRECISION=${{ matrix.config.mixed }} -DGINKGO_BUILD_CUDA=OFF -DGINKGO_BUILD_HIP=OFF -DGINKGO_BUILD_MPI=OFF -DGINKGO_DPCPP_SINGLE_MODE=ON | ||
| make -j8 | ||
| ONEAPI_DEVICE_SELECTOR=level_zero:gpu ctest -j10 --output-on-failure | ||
| cmake .. -GNinja -DCMAKE_INSTALL_PREFIX=install_ginkgo -DCMAKE_CXX_FLAGS="-Wpedantic -ffp-model=precise -fsycl-default-sub-group-size=16 -Wno-unused-command-line-argument -Wno-deprecated" -DCMAKE_CXX_COMPILER=${{ matrix.config.compiler }} -DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} -DGINKGO_MIXED_PRECISION=${{ matrix.config.mixed }} -DGINKGO_BUILD_CUDA=OFF -DGINKGO_BUILD_HIP=OFF -DGINKGO_BUILD_MPI=OFF -DGINKGO_DPCPP_SINGLE_MODE=ON |
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I would keep -Wdeprecated around, especially now that we are starting to fix those deprecated usages.
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the workaround is not needed anymore as the machine runs normally now |
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The default sub-group size 8 for most kernels (I assume) is available on A770, but it can not run or terminiate successfully with this kind of kernels. It might be from some mismatch between driver/kernel/compiler.
We pass the
-fsycl-default-sub-group-size=16such that it does not hang for now.Interestingly, the cooperative group with sub-group size 8 works for now.
I was inspired by that because job with 8 hangs but job with 16 works.