openmpi

Ralph Castain 43a3baad5e Ensure we use the first compute node's topology for mapping Don't filter the topology by cpuset if you are mpirun until you know that no other compute nodes are involved. This deals with the corner case where mpirun is executing on a node of different topology from the compute nodes. Simplify - don't mandate that all cpus in the given cpuset be present on every node. We can then run everything thru the filter as before, which ensures that any procs run on mpirun are also contained within the specified cpuset. Correctly count the number of available PUs under each object when given a cpuset Fix the default binding settings, and correctly count PUs when no cpuset is given Ensure the binding policy gets set in all cases		2015-03-19 16:30:36 -07:00
..
base	Ensure we use the first compute node's topology for mapping	2015-03-19 16:30:36 -07:00
external	hwloc external: portability updates	2015-03-13 04:40:09 -07:00
hwloc191	add owner files to opa/ompi/orte mca directories	2015-02-22 15:10:23 -07:00
configure.m4	Refs trac:4038	2014-01-07 15:58:40 +00:00
hwloc.h	Ensure we use the first compute node's topology for mapping	2015-03-19 16:30:36 -07:00
Makefile.am	The final step of the RFC: convert the <foo>libdir and friends to fit their respective code areas, and equate them all at the top. Note that we can't entirely separate things as the opal_install_dirs framework can't handle separated locations for the various trees.	2014-05-08 02:01:35 +00:00
README.txt	Per RFC, continue pecking away at the build system renaming	2014-05-06 16:27:38 +00:00

README.txt

12 Sep 2011

Notes for hwloc component maintainers:

1. There can only be *1* hwloc version component at a time.
   Specifically: if there are multiple hwlocXYZ components (i.e.,
   different versions of hwloc), then they must all be .ompi_ignore'd
   except for 1.  This is because we currently m4_include all of the
   underlying hwloc's .m4 files -- if there are multiple hwlocXYZ
   components, I don't know if m4 will barf at the multiple,
   conflicting AC_DEFUNs, or whether it'll just do something
   completely undefined.

1a. As a consequence, if you're adding a new hwloc version component,
   you'll need to .ompi_ignore all others while you're testing the new
   one. 

2. If someone wants to fix #1 someday, we might be able to do what we
   do for libevent: OPAL_CONFIG_SUBDIR (instead of slurping in hwloc's
   .m4 files).