On Fri, Mar 25, 2022 at 10:18:49AM +0100, Tom de Vries wrote:
> When a display manager is running on an nvidia card, all CUDA kernel launches
> get a 5 seconds watchdog timer.
>
> Consequently, when running the libgomp testsuite with nvptx accelerator and
> GOMP_NVPTX_JIT=-O0 we run into a few FAILs like this:
> ...
> libgomp: cuStreamSynchronize error: the launch timed out and was terminated
> FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/parallel-dims.c \
> -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none -O0 \
> execution test
> ...
>
> Fix this by scaling down the failing test-cases.
>
> Tested on x86_64-linux with nvptx accelerator.
>
> OK for trunk?
Will defer to Thomas, as it is a purely OpenACC change.
One way to do it is
/* { dg-additional-options "-DEXPENSIVE" { target run_expensive_tests } } */
and using
#ifdef EXPENSIVE
#define N 100
#else
#define N 50
#endif
etc., that way the tests will be normally scaled down, but with
GCC_TEST_RUN_EXPENSIVE=1 in the environment one can still request
the more expensive tests.
For the Fortran test it would mean .F90 extension though...
Jakub
