[llvm-bugs] [Bug 39970] New: Several OpenMP tests fail on single-core system

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Dec 11 23:38:48 PST 2018


            Bug ID: 39970
           Summary: Several OpenMP tests fail on single-core system
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Runtime Library
          Assignee: unassignedbugs at nondot.org
          Reporter: tstellar at redhat.com
                CC: llvm-bugs at lists.llvm.org

There are several tests that fail for me on a single-core system that aren't
failing on systems with multiple cores. My operating system is Red Hat
Enterprise Linux.  I noticed while debugging the api/omp_in_parallel.c test
that omp_in_parallel() always returns false on the single-core system.  Here is
the full list of test failures:

Failing Tests (10):
    libomp :: api/omp_in_parallel.c
    libomp :: flush/omp_flush.c
    libomp :: ompt/misc/api_calls_places.c
    libomp :: parallel/omp_nested.c
    libomp :: tasking/omp_task.c
    libomp :: tasking/omp_taskyield.c
    libomp :: worksharing/for/kmp_sch_simd_runtime_api.c
    libomp :: worksharing/for/kmp_sch_simd_runtime_guided.c
    libomp :: worksharing/for/kmp_sch_simd_runtime_static.c
    libomp :: worksharing/for/omp_doacross.c

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