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openmpi/ompi/mca/pml
Ralph Castain 45e695928f As per the email discussion, revise the sparse handling of hostnames so that we avoid potential infinite loops while allowing large-scale users to improve their startup time:
* add a new MCA param orte_hostname_cutoff to specify the number of nodes at which we stop including hostnames. This defaults to INT_MAX => always include hostnames. If a value is given, then we will include hostnames for any allocation smaller than the given limit.

* remove ompi_proc_get_hostname. Replace all occurrences with a direct link to ompi_proc_t's proc_hostname, protected by appropriate "if NULL"

* modify the OMPI-ORTE integration component so that any call to modex_recv automatically loads the ompi_proc_t->proc_hostname field as well as returning the requested info. Thus, any process whose modex info you retrieve will automatically receive the hostname. Note that on-demand retrieval is still enabled - i.e., if we are running under direct launch with PMI, the hostname will be fetched upon first call to modex_recv, and then the ompi_proc_t->proc_hostname field will be loaded

* removed a stale MCA param "mpi_keep_peer_hostnames" that was no longer used anywhere in the code base

* added an envar lookup in ess/pmi for the number of nodes in the allocation. Sadly, PMI itself doesn't provide that info, so we have to get it a different way. Currently, we support PBS-based systems and SLURM - for any other, rank0 will emit a warning and we assume max number of daemons so we will always retain hostnames

This commit was SVN r29052.
2013-08-20 18:59:36 +00:00
..
base As per the email discussion, revise the sparse handling of hostnames so that we avoid potential infinite loops while allowing large-scale users to improve their startup time: 2013-08-20 18:59:36 +00:00
bfo As per the email discussion, revise the sparse handling of hostnames so that we avoid potential infinite loops while allowing large-scale users to improve their startup time: 2013-08-20 18:59:36 +00:00
cm rename ompi_free_list operations to _mt, as per discussions at last face to face meeting 2013-07-08 22:07:52 +00:00
crcpw rename ompi_free_list operations to _mt, as per discussions at last face to face meeting 2013-07-08 22:07:52 +00:00
example MCA/base: Add new MCA variable system 2013-03-27 21:09:41 +00:00
ob1 Fix warnings in ob1 introduced by the pvar commit 2013-07-17 03:41:05 +00:00
v Update OMPI frameworks to use the MCA framework system. 2013-03-27 21:17:31 +00:00
configure.m4 Rather than setting up the direct call stuff in ompi_mca (which requires 2013-02-04 23:26:42 +00:00
Makefile.am Fix mistake that came in via the ompi-agen tree in r23764. The mistake wasn't part of the core autogen upgrade; it was an additional 'bonus' cleanup. Oops. The mistake will always create a set of directories under installdir, even if you do not --with-devel-headers. The set of directories will be empty, but still -- they should not be there at all. This commit fixes that -- the directories are not created at all if you do not --with-devel-headers 2010-09-24 22:53:28 +00:00
pml.h Implementation of the MPI-3 Matched Probe functionality. Currently only 2012-02-06 17:35:21 +00:00