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From 196eddd222f84846bba41d837b80441bc586a701 Mon Sep 17 00:00:00 2001
From: Jeff Hammond <jeff.science@gmail.com>
Date: Fri, 27 Sep 2024 21:57:32 +0300
Subject: [PATCH 1/2] allow OMPI 5 to use DIRECT by default (#52)
Signed-off-by: Jeff Hammond <jeff.science@gmail.com>
---
src/init_finalize.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/init_finalize.c b/src/init_finalize.c
index a48e40b..a35cf2d 100644
--- a/src/init_finalize.c
+++ b/src/init_finalize.c
@@ -290,7 +290,8 @@ int PARMCI_Init_thread_comm(int armci_requested, MPI_Comm comm) {
ARMCII_GLOBAL_STATE.iov_batched_limit = 0;
}
-#if defined(OPEN_MPI)
+#if defined(OPEN_MPI) && defined(OMPI_MAJOR_VERSION) && (OMPI_MAJOR_VERSION < 5)
+ /* Open-MPI 5 RMA works a lot better than older releases... */
ARMCII_GLOBAL_STATE.iov_method = ARMCII_IOV_BATCHED;
#else
/* DIRECT leads to addr=NULL errors when ARMCI_{GetV,PutV} are used
From 1d36edf19d1ac5667fe927204d11088a45c45878 Mon Sep 17 00:00:00 2001
From: Jeff Hammond <jeff.science@gmail.com>
Date: Thu, 3 Oct 2024 16:27:05 +0300
Subject: [PATCH 2/2] allow OMPI 5 to use DIRECT by default (#54)
Signed-off-by: Jeff Hammond <jeff.science@gmail.com>
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