[Openmp-dev] warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)

[Shilei Tian via Openmp-dev]

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.

--
Regards,
Shilei Tian

From: Openmp-dev <openmp-dev-bounces at lists.llvm.org> on behalf of Itaru Kitayama via Openmp-dev <openmp-dev at lists.llvm.org>
Date: Sunday, December 5, 2021 at 5:03 AM
To: openmp-dev <openmp-dev at lists.llvm.org>
Subject: [Openmp-dev] warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)
Hi,
My offloading app runs correctly on host, but gets stuck (no progress)
on the device.

In a cuda gdb session I see:

(cuda-gdb) r

The program being debugged has been started already.

Start it from the beginning? (y or n) y

Starting program:
/p/project/cjinb33/kitayama1/opt/nest-clang-offload/bin/nest
hpc_benchmark.sli

warning: Cannot parse .gnu_debugdata section; LZMA support was
disabled at compile time

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/usr/lib64/libthread_db.so.1".

warning: File "/p/software/jurecadc/stages/2020/software/GCCcore/10.3.0/lib64/libstdc++.so.6.0.28-gdb.py"
auto-loading has been declined by your `auto-load safe-path' set to
"$debugdir:$datadir/auto-load".

warning: Cannot parse .gnu_debugdata section; LZMA support was
disabled at compile time

warning: Cannot parse .gnu_debugdata section; LZMA support was
disabled at compile time

OMP: Warning #249: OMP_TARGET_OFFLOAD: syntax error, using DEFAULT.

warning: Cannot parse .gnu_debugdata section; LZMA support was
disabled at compile time

[Detaching after fork from child process 27044]

[New Thread 0x15554a92d700 (LWP 27050)]

[New Thread 0x15554a12c700 (LWP 27051)]

virtual void nest::SimulationManager::initialize() Map this pointer at
0x15552e1021a8

warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)


warning: Cuda API error detected: cuModuleGetGlobal_v2 returned (0x1f4)

Should I be concerned about the API error?
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