[OpenMP] Multiple definition error with --save-temps when linking CUDA device code #67583
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@llvm/issue-subscribers-openmp
Error occurs when linking a CUDA device function with OpenMP offload and `--save-temps` is specified. The code links successfully without `--save-temps`.
The error is: dev_func_save_temps.tar.gz |
jhuber6
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Summary: We use these image wrappers to do runtime specifica registration of variables and to load the device image that was compiled. This was intended to support multiple of these running at the same time, e.g. you can have a CUDA instance running with OpenMP and they should both function so long as you do not share state between the two. However, because we did not use a unique name for this file it would cause conflicts when included. This patch names the image based off of the language runtime it's using so that they remain separate. Fixes: llvm#67583
jhuber6
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Sep 28, 2023
Summary: We use these image wrappers to do runtime specifica registration of variables and to load the device image that was compiled. This was intended to support multiple of these running at the same time, e.g. you can have a CUDA instance running with OpenMP and they should both function so long as you do not share state between the two. However, because we did not use a unique name for this file it would cause conflicts when included. This patch names the image based off of the language runtime it's using so that they remain separate. Fixes: #67583
legrosbuffle
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Sep 29, 2023
Summary: We use these image wrappers to do runtime specifica registration of variables and to load the device image that was compiled. This was intended to support multiple of these running at the same time, e.g. you can have a CUDA instance running with OpenMP and they should both function so long as you do not share state between the two. However, because we did not use a unique name for this file it would cause conflicts when included. This patch names the image based off of the language runtime it's using so that they remain separate. Fixes: llvm#67583
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Error occurs when linking a CUDA device function with OpenMP offload and
--save-tempsis specified. The code links successfully without--save-temps.The error is:
/usr/bin/ld: a.out.image.wrapper.o:(cuda_offloading_entries+0x0): multiple definition of `__dummy.cuda_offloading.entry'; a.out.image.wrapper.o:(cuda_offloading_entries+0x0): first defined here
dev_func_save_temps.tar.gz
(Might need to adjust the
--cuda-gpu-archin the first compile command in c1)The text was updated successfully, but these errors were encountered: