diff options
| author | Tom de Vries <tdevries@suse.de> | 2022-01-23 06:29:58 +0100 |
|---|---|---|
| committer | Tom de Vries <tdevries@suse.de> | 2022-02-01 08:15:00 +0100 |
| commit | d43fbc7d3f7621e1c8f153c1471d2a5cd20bfdc8 (patch) | |
| tree | de90383618e442099bccbe4f1be08c2a89ed9099 /gcc | |
| parent | be362d5e127e087dcd4a2c0d843cf7b9a7399c73 (diff) | |
| download | gcc-d43fbc7d3f7621e1c8f153c1471d2a5cd20bfdc8.zip gcc-d43fbc7d3f7621e1c8f153c1471d2a5cd20bfdc8.tar.gz gcc-d43fbc7d3f7621e1c8f153c1471d2a5cd20bfdc8.tar.bz2 | |
[libgomp, testsuite] Fix insufficient resources in test-cases
When running libgomp test-case broadcast-many.c on an nvptx accelerator
(T400, driver version 470.86), I run into:
...
libgomp: The Nvidia accelerator has insufficient resources to launch \
'main$_omp_fn$0' with num_workers = 32 and vector_length = 32; \
recompile the program with 'num_workers = x and vector_length = y' on \
that offloaded region or '-fopenacc-dim=:x:y' where x * y <= 896.
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/broadcast-many.c \
-DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none \
-O0 execution test
...
The error does not occur when using GOMP_NVPTX_JIT=-O0.
Fix this by using 896 / 32 == 28 workers for ACC_DEVICE_TYPE_nvidia.
Likewise for some other test-cases.
Tested libgomp on x86_64 with nvptx accelerator.
libgomp/ChangeLog:
2022-01-27 Tom de Vries <tdevries@suse.de>
* testsuite/libgomp.oacc-c-c++-common/broadcast-many.c: Reduce
num_workers for nvidia accelerator to fix libgomp error 'insufficient
resources'.
* testsuite/libgomp.oacc-c-c++-common/par-loop-comb-reduction-4.c:
Same.
* testsuite/libgomp.oacc-c-c++-common/reduction-7.c: Same.
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions