openmpi

Jeff Squyres 9db4542c2b Move maffinity_base_alloc_policy and maffinity_base_bind_failure_action MCA params to the hwloc base (hwloc_base_alloc_polocy and hwloc_base_bind_failure_action). Since these MCA parameters were never on a release branch, I'm just moving/renaming them outright and not leaving aliases to the old names. Note that some upper layer needs to call opal_hwloc_base_set_process_membind_policy() to set the set-by-MCA-param process-wide memory affinity policy. We can't do this automatically during hwloc_base_open() because, for reasons described elsewhere, opal_hwloc_topology is not automatically filled during hwloc_base_open() (in short: potential scalability issues when launching many MPI processes simultaneously on a single machine, for example). This commit was SVN r25156.		2011-09-19 16:10:37 +00:00
..
base	Move maffinity_base_alloc_policy and	2011-09-19 16:10:37 +00:00
external	Per the RFC from Jeff, move hwloc from opal/mca/common to its own static framework ala libevent. Have ORTE daemons collect the topology info at startup and, if --enable-hwloc-xml is set, send that info back to the HNP for later use. The HNP only retains unique topology "templates" to reduce memory footprint. Have the daemon include the local topology info in the nidmap buffer sent to each app so the apps don't all hammer the local system to discover it for themselves.	2011-09-11 19:02:24 +00:00
hwloc121	Fixes to ensure that dependent libraries are carried forward from the embedded hwloc	2011-09-13 22:43:39 +00:00
configure.m4	* With some m4 trickery, if no form of --with-hwloc is specified on	2011-09-13 00:39:14 +00:00
hwloc.h	Per the RFC from Jeff, move hwloc from opal/mca/common to its own static framework ala libevent. Have ORTE daemons collect the topology info at startup and, if --enable-hwloc-xml is set, send that info back to the HNP for later use. The HNP only retains unique topology "templates" to reduce memory footprint. Have the daemon include the local topology info in the nidmap buffer sent to each app so the apps don't all hammer the local system to discover it for themselves.	2011-09-11 19:02:24 +00:00
Makefile.am	Per the RFC from Jeff, move hwloc from opal/mca/common to its own static framework ala libevent. Have ORTE daemons collect the topology info at startup and, if --enable-hwloc-xml is set, send that info back to the HNP for later use. The HNP only retains unique topology "templates" to reduce memory footprint. Have the daemon include the local topology info in the nidmap buffer sent to each app so the apps don't all hammer the local system to discover it for themselves.	2011-09-11 19:02:24 +00:00
README.txt	Add some notes about maintaining the hwloc framework.	2011-09-12 19:40:18 +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: OMPI_CONFIG_SUBDIR (instead of slurping in hwloc's
   .m4 files).