mca_coll_sync_reduce 80 ompi/mca/coll/sync/coll_sync.h int mca_coll_sync_reduce(const void *sbuf, void *rbuf, int count, mca_coll_sync_reduce 129 ompi/mca/coll/sync/coll_sync_module.c sync_module->super.coll_reduce = mca_coll_sync_reduce;