Merge pull request #10 from miked-mellanox/topic/fix-mmap-mode

OSHMEM: fix memheap/sshmem/mmap to use MAP_PRIVATE instead of SHARED to speedup registration RM-approved
open-mpi · Oct 7, 2014 · bb3e8dc · bb3e8dc
2 parents aad74f5 + 90a2e91
commit bb3e8dc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/oshmem/mca/sshmem/mmap/sshmem_mmap_module.c b/oshmem/mca/sshmem/mmap/sshmem_mmap_module.c
@@ -185,7 +185,7 @@ segment_create(map_segment_t *ds_buf,
     addr = mmap((void *)mca_sshmem_base_start_address,
                 size,
                 PROT_READ | PROT_WRITE,
-                MAP_SHARED |
+                MAP_PRIVATE |
 #if defined(MAP_ANONYMOUS)
                 MAP_ANONYMOUS |
 #endif