This is an archive of the discontinued LLVM Phabricator instance.

[OpenMP][libomptarget] Flush intermediate values during team reduction
ClosedPublic

Authored by gtbercea on Dec 3 2018, 7:16 AM.

Reviewers

ABataev
caomhin

Commits

Summary

Ensure intermediate values of a team reduction are flushed to memory.

This revision is now accepted and ready to land.Dec 3 2018, 7:17 AM

This revision was automatically updated to reflect the committed changes.

Path

Size

libomptarget/

deviceRTLs/

nvptx/

src/

1 line

Show First 20 Lines • Show All 438 Lines • ▼ Show 20 Lines	EXTERN int32_t __kmpc_nvptx_teams_reduce_nowait_simple(kmp_Ident *loc,
while (atomicCAS((uint32_t *)crit, 0, 1))		while (atomicCAS((uint32_t *)crit, 0, 1))
;		;
return 1;		return 1;
}		}

EXTERN void		EXTERN void
__kmpc_nvptx_teams_end_reduce_nowait_simple(kmp_Ident *loc, int32_t global_tid,		__kmpc_nvptx_teams_end_reduce_nowait_simple(kmp_Ident *loc, int32_t global_tid,
kmp_CriticalName *crit) {		kmp_CriticalName *crit) {
		__threadfence_system();
(void)atomicExch((uint32_t *)crit, 0);		(void)atomicExch((uint32_t *)crit, 0);
}		}