This was added for terrible systems that rely on a slow DNS server to
look up the local hostname.  Most OSs do a much better job setting
local host names in the local /etc/hosts file today.  Even if they
don't, we no longer do a large number of lookups anymore, so this
should not be a problem.

We got a number of complaints with the recent move to prioritize clang
over gcc.  The biggest one was the lack of good OpenMP support in
clang.

http://clang-developers.42468.n3.nabble.com/RFC-OpenMP-Support-in-Clang-td4029194.html

Bill found some misuse of MPIR_ERR_RECOVERABLE and few other error
messages and wrote a test in autogen.sh to discover/report them. This
fixes the errors raised by that test and re-enables it at autogen time.

Signed-off-by: Pavan Balaji <balaji@mcs.anl.gov>

Addresses #1887.

After adding the subdir-objects automake option, the autotools will try
to create a directory called literally '$(top_srcdir)'/path/to/source
to store .Plo files.  with subdir-objects option, the top_srcdir and
top_builddir variables are no longer needed  (except in AM_CPPFLAGS and
linker commands).

*finally* gets hydra building again after yesterday's attempt to make
automake-1.14 happy

Older automake versions (at least 1.13.1) will complain if we asked for subdir
mode and we did not verify that both -c and -o flags work  (AM_PROG_CC_C_O)

automake-1.14 will carp if the subdir-objects option is missing and it thinks
you should have specified this option, and since we treat warnings as errors we
need to specify this option.  MPICH requires a pretty new version of automake,
so it's doubtful we'll ever encounter the 1999-era automake that does not
understand 'subdir-objects'

Removed parts that are no longer relevant due to deprecated features
in MPICH or in the MPI standard.

Qi QC Zhang authored Dec 17, 2012 and Rob Latham committed Jun 21, 2013

(ibm) D187762
(ibm) 0404df3637157f9aac3644ca62d9ed7f61e5d73d

Signed-off-by: Michael Blocksome <blocksom@us.ibm.com>

Joe Ratterman authored Sep 28, 2011 and Rob Latham committed Jun 21, 2013

This change was originally part of an extensive 'PE Code Merge' commit
that was a sqaushed commit of approximately 50 defect and feature code
changes.

(ibm) 17b9e8973047abdb461f0303bc6c15509aef160b

automake yelled at me for overriding potentially user-supplied variables

This change causes the build to break with --enable-debuginfo

This reverts commit 08c22ebe.

Michael Blocksome authored Apr 03, 2013 and Kenneth Raffenetti committed Jun 19, 2013

These are misc debugger changes that were not picked up during the merge
for some reason.

Closes #1886. We haven't supported Windows since 1.4.1p so its time to
remove information for Windows installation from the README.

Signed-off-by: Pavan Balaji <balaji@mcs.anl.gov>

Remove old mcs.anl.gov references.

Qi QC Zhang authored Aug 08, 2012 and Pavan Balaji committed Jun 13, 2013

(ibm) c12fc56aee6f51af3fe92d76989094000b23ced0

Heavily updated by balaji.

Signed-off-by: Rob Latham <robl@mcs.anl.gov>

Michael Blocksome authored Jun 11, 2013 and Pavan Balaji committed Jun 11, 2013

Signed-off-by: Pavan Balaji <balaji@mcs.anl.gov>

We slow down consecutive ssh connections to the same host to avoid the
ssh server falling over.  This patch allows the user to control how
many ssh connections we allow before throttling.

If the device specified a timer type, use that by default.  If none is
specified, configure will try to detect one.  User-specified types are
always given priority.

Signed-off-by: Michael Blocksome <blocksom@us.ibm.com>

This will match the #include usage in the `hwloc` package.

Signed-off-by: Bob Cernohous <bobc@us.ibm.com>

Signed-off-by: Bob Cernohous <bobc@us.ibm.com>

The previous patch was meant to allow devices to automatically pick
the default timer type they like.  However, it forces the device to
pick one of the predefined timer types.

It is now covered under the PARAMS interface and is listed with the
remaining environment variables in README.envvar.  Also improve the
description of the variable in README.envvar.

MPIR_PARAM_ gets higher priority than MPICH_.  So we place the
MPIR_PARAM_ version as the preferred environment variable name, but
provide the MPICH_ version as an alternative.

The ABI string is updated to 11:x:y since we added the C++ binding for
distgraph.  No interfaces were deleted, so 'x' goes to 0, and 'y' goes
to 1.

Picked up the relevant parts of [2bda6bc7] and [49b74176].