Merge pull request #1210 from artpol84/icbarrier_fix

hjelmn · hjelmn · commit 9d659465b725 · 2015-12-14T13:52:38.000-08:00
Fix NBC iBarrier for inter-communicators.
diff --git a/ompi/mca/coll/libnbc/nbc_ibarrier.c b/ompi/mca/coll/libnbc/nbc_ibarrier.c
@@ -177,7 +177,7 @@ int ompi_coll_libnbc_ibarrier_inter(struct ompi_communicator_t *comm, ompi_reque
     }
 
     /* inform remote peers that all local peers have entered the barrier */
-    for (int peer = 0 ; peer < rsize ; ++peer) {
+    for (int peer = 1; peer < rsize ; ++peer) {
       res = NBC_Sched_send (0, true, 1, MPI_BYTE, peer, schedule, false);
       if (OPAL_UNLIKELY(OMPI_SUCCESS != res)) {
         NBC_Return_handle (handle);

Original file line number	Diff line number	Diff line change
`@@ -177,7 +177,7 @@ int ompi_coll_libnbc_ibarrier_inter(struct ompi_communicator_t *comm, ompi_reque`
`177`	`177`	`}`
`178`	`178`
`179`	`179`	`/* inform remote peers that all local peers have entered the barrier */`
`180`		`- for (int peer = 0 ; peer < rsize ; ++peer) {`
	`180`	`+ for (int peer = 1; peer < rsize ; ++peer) {`
`181`	`181`	`res = NBC_Sched_send (0, true, 1, MPI_BYTE, peer, schedule, false);`
`182`	`182`	`if (OPAL_UNLIKELY(OMPI_SUCCESS != res)) {`
`183`	`183`	`NBC_Return_handle (handle);`