Rainer --
Can you update the top-level README as appropriate, too? There's a
section about ob1 vs. cm priority, etc.
Thanks!
On Aug 18, 2009, at 3:12 PM, <rusra...@osl.iu.edu>
<rusra...@osl.iu.edu> wrote:
Author: rusraink
Date: 2009-08-18 15:12:43 EDT (Tue, 18 Aug 2009)
New Revision: 21834
URL: https://svn.open-mpi.org/trac/ompi/changeset/21834
Log:
- As described in RFC,
http://www.open-mpi.org/community/lists/devel/2009/08/6618.php
lower the default priority of PML/cm to allow _defined_ behaviour
for systems, where both MTLs and BTLs are available (Portals and
MX).
Keep the previous behaviour of favoring in case of PSM.
Still, the user may select --mca pml cm for apps where applicable.
Text files modified:
trunk/ompi/mca/pml/cm/pml_cm_component.c | 15 ++++++++-------
1 files changed, 8 insertions(+), 7 deletions(-)
Modified: trunk/ompi/mca/pml/cm/pml_cm_component.c
=
=
=
=
=
=
=
=
======================================================================
--- trunk/ompi/mca/pml/cm/pml_cm_component.c (original)
+++ trunk/ompi/mca/pml/cm/pml_cm_component.c 2009-08-18 15:12:43
EDT (Tue, 18 Aug 2009)
@@ -106,7 +106,7 @@
"CM PML selection priority",
false,
false,
- 30,
+ 10,
&ompi_pml_cm.default_priority);
return OMPI_SUCCESS;
@@ -139,12 +139,13 @@
if (OMPI_SUCCESS != ret) {
*priority = -1;
return NULL;
- } else if(strcmp(ompi_mtl_base_selected_component-
>mtl_version.mca_component_name, "psm") != 0) {
- /* if mtl is not PSM then back down priority, and require
the user to */
- /* specify pml cm directly if that is what they want
priority */
- /* of 1 is sufficient in that case as it is the only pml
that */
- /* will be considered */
- *priority = 1;
+ } else if(strcmp(ompi_mtl_base_selected_component-
>mtl_version.mca_component_name, "psm") == 0) {
+ /*
+ * If MTL is PSM then up our priority
+ * For every other communication layer having MTLs and
BTLs, the user/admin
+ * may still select PML/ob1 (BTLs) or PML/cm (MTLs) if
preferable for the app/site.
+ */
+ *priority = 30;
}
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--
Jeff Squyres
jsquy...@cisco.com
