ad0f80d945
The nteams-var ICV exists per device and can be set either via the routine omp_set_num_teams or as environment variable (OMP_NUM_TEAMS with optional _ALL/_DEV/_DEV_<num> suffix); it is default-initialized to zero. The number of teams created is described under the num_teams clause. If the clause is absent, the number of teams is implementation defined but at least one team must exist and, if nteams-var is positive, at most nteams-var teams may exist. The latter condition was not honored in a target region before this commit, such that too many teams were created. Already before this commit, both the num_teams([lower:]upper) clause (on the host and in target regions) and, only on the host, the nteams-var ICV were honored. And as only one teams is created for host fallback, unless the clause specifies otherwise, the nteams-var ICV was and is effectively honored. libgomp/ChangeLog: PR libgomp/109875 * config/gcn/target.c (GOMP_teams4): Honor nteams-var ICV. * config/nvptx/target.c (GOMP_teams4): Likewise. * testsuite/libgomp.c-c++-common/teams-nteams-icv-1.c: New test. * testsuite/libgomp.c-c++-common/teams-nteams-icv-2.c: New test. * testsuite/libgomp.c-c++-common/teams-nteams-icv-3.c: New test. * testsuite/libgomp.c-c++-common/teams-nteams-icv-4.c: New test. |
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| accel | ||
| bsd | ||
| darwin | ||
| gcn | ||
| hpux | ||
| linux | ||
| mingw32 | ||
| nvptx | ||
| posix | ||
| rtems | ||
| t-aix | ||