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Hi,<br>
Did you tried it on clang/LLVM built from trunk? Trunk version does not support offloading yet (it is under development now). Use clang/LLVM from clang-omp.github.com, as pointed in
<a class="moz-txt-link-freetext" href="https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus">
</a><a class="moz-txt-link-freetext" href="https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus">https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus</a>
<br>
<pre class="moz-signature" cols="72">Best regards,
Alexey Bataev
=============
Software Engineer
Intel Compiler Team</pre>
Hi,<br>
Did you tried it on clang/LLVM built from trunk? Trunk version does not support offloading yet (it is under development now). Use clang/LLVM from clang-omp.github.com, as pointed in
<a class="moz-txt-link-freetext" href="https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus">
</a><a class="moz-txt-link-freetext" href="https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus">https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus</a>
<div class="moz-cite-prefix">20.01.2016 1:42, Ahmed ElTantawy via llvm-dev пишет:<br>
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<blockquote cite="mid:%3CCANPV2MMwoR=-CV2FUcsO4Qjfp8a9ETqyh1or4QADmrhJTZmU2g@mail.gmail.com%3E" type="cite">
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<div>Hi,<br>
<br>
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I was trying to execute an OpenMP 4.0 code on GPU with the offloading supported now. I went through the steps described
<a moz-do-not-send="true" href="https://parallel-computing.pro/index.php/9-cuda/43-openmp-4-0-on-nvidia-cuda-gpus" target="_blank">
here</a>. But I get these linking errors during compilation:<br>
<br>
<br>
LIBRARY_PATH=/home/ahmed/ahmed_home/openmp4/llvm/build/bin/../lib clang-3.8 -fopenmp -omptargets=nvptx64sm_30-nvidia-linux -g -O3 -std=c99 example.c -o example<br>
ptxas warning : Too big maxrregcount value specified 64, will be ignored<br>
nvlink error : Undefined reference to '__kmpc_kernel_init' in '/tmp/example-87866c-36d3a6.cubin'<br>
nvlink error : Undefined reference to '__kmpc_for_static_init_4' in '/tmp/example-87866c-36d3a6.cubin'<br>
nvlink error : Undefined reference to '__kmpc_for_static_fini' in '/tmp/example-87866c-36d3a6.cubin'<br>
clang-3.8: error: nvlink command failed with exit code 255 (use -v to see invocation)<br>
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<br>
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Any pointer, where the problem could be ?<br>
<br>
</div>
Thanks a lot.</div>
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