mtl/psm2: do not set PSM2_DEVICES env variable

The PSM2 MTL was setting the PSM2_DEVICES environment variable to self,shm for single node jobs. This is causing single node/single process jobs to fail on some omnipath systems. Not setting this environment variable fixes these issues. This fix is needed as part of bringup of omnipath clusters at several customer sites. Fixes issue open-mpi#1559 Signed-off-by: Howard Pritchard <[email protected]>
hppritcha · Apr 25, 2016 · dbab676 · dbab676
1 parent da132f7
commit dbab676
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/ompi/mca/mtl/psm2/mtl_psm2_component.c b/ompi/mca/mtl/psm2/mtl_psm2_component.c
@@ -198,10 +198,6 @@ ompi_mtl_psm2_component_init(bool enable_progress_threads,
 	return NULL;
     }
 
-    if (num_local_procs == num_total_procs) {
-      setenv("PSM2_DEVICES", "self,shm", 0);
-    }
-
     err = psm2_init(&verno_major, &verno_minor);
     if (err) {
       opal_show_help("help-mtl-psm2.txt",