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<p class="MsoNormal">If the function call is to get the device environment variable from the image, that could return CUDA_ERROR_NOT_FOUND (500). However, it doesn't affect the execution of the program. The hang could be something else.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:black">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Regards,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Shilei Tian</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Openmp-dev <openmp-dev-bounces@lists.llvm.org> on behalf of Itaru Kitayama via Openmp-dev <openmp-dev@lists.llvm.org><br>
<b>Date: </b>Sunday, December 5, 2021 at 5:03 AM<br>
<b>To: </b>openmp-dev <openmp-dev@lists.llvm.org><br>
<b>Subject: </b>[Openmp-dev] warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<o:p></o:p></span></p>
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<p class="MsoNormal">Hi,<br>
My offloading app runs correctly on host, but gets stuck (no progress)<br>
on the device.<br>
<br>
In a cuda gdb session I see:<br>
<br>
(cuda-gdb) r<br>
<br>
The program being debugged has been started already.<br>
<br>
Start it from the beginning? (y or n) y<br>
<br>
Starting program:<br>
/p/project/cjinb33/kitayama1/opt/nest-clang-offload/bin/nest<br>
hpc_benchmark.sli<br>
<br>
warning: Cannot parse .gnu_debugdata section; LZMA support was<br>
disabled at compile time<br>
<br>
[Thread debugging using libthread_db enabled]<br>
<br>
Using host libthread_db library "/usr/lib64/libthread_db.so.1".<br>
<br>
warning: File "/p/software/jurecadc/stages/2020/software/GCCcore/10.3.0/lib64/libstdc++.so.6.0.28-gdb.py"<br>
auto-loading has been declined by your `auto-load safe-path' set to<br>
"$debugdir:$datadir/auto-load".<br>
<br>
warning: Cannot parse .gnu_debugdata section; LZMA support was<br>
disabled at compile time<br>
<br>
warning: Cannot parse .gnu_debugdata section; LZMA support was<br>
disabled at compile time<br>
<br>
OMP: Warning #249: OMP_TARGET_OFFLOAD: syntax error, using DEFAULT.<br>
<br>
warning: Cannot parse .gnu_debugdata section; LZMA support was<br>
disabled at compile time<br>
<br>
[Detaching after fork from child process 27044]<br>
<br>
[New Thread 0x15554a92d700 (LWP 27050)]<br>
<br>
[New Thread 0x15554a12c700 (LWP 27051)]<br>
<br>
virtual void nest::SimulationManager::initialize() Map this pointer at<br>
0x15552e1021a8<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
<br>
warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)<br>
<br>
Should I be concerned about the API error?<br>
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