[Openmp-commits] [openmp] e8679b9 - [OpenMP][test][VE] Limit the number of AFFINITY_MAX_CPUS for VE (#65872)

[via Openmp-commits]

Author: Kazushi Marukawa
Date: 2023-09-12T23:45:56+09:00
New Revision: e8679b93daa0db1e9b1838186f6309f59ad5cd0b

URL: https://github.com/llvm/llvm-project/commit/e8679b93daa0db1e9b1838186f6309f59ad5cd0b
DIFF: https://github.com/llvm/llvm-project/commit/e8679b93daa0db1e9b1838186f6309f59ad5cd0b.diff

LOG: [OpenMP][test][VE] Limit the number of AFFINITY_MAX_CPUS for VE (#65872)

Limit the number of AFFINITY_MAX_CPUS for VE because VE's
sched_getaffinity doesn't work correctly with large sized mask buffer.

Added: 
    

Modified: 
    openmp/runtime/test/affinity/libomp_test_affinity.h

Removed: 
    


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diff  --git a/openmp/runtime/test/affinity/libomp_test_affinity.h b/openmp/runtime/test/affinity/libomp_test_affinity.h
index 1464d9c41414192..fb9316a3ed2dc4e 100644
--- a/openmp/runtime/test/affinity/libomp_test_affinity.h
+++ b/openmp/runtime/test/affinity/libomp_test_affinity.h
@@ -13,7 +13,13 @@ typedef struct affinity_mask_t {
   cpu_set_t *set;
 } affinity_mask_t;
 
+#ifdef __ve__
+// VE's sched_getaffinity put garbage if the buffer is too big.  512 is
+// a good number to make all tests run correctly.
+#define AFFINITY_MAX_CPUS 512
+#else
 #define AFFINITY_MAX_CPUS (32 * 64)
+#endif
 
 // Operating system affinity mask API
 static void affinity_mask_zero(affinity_mask_t *mask) {