to make checks for MPI-implementations fail in the right way ,-]
- check in configure.ac
- BINARY INCOMPATIBLE change to mpif-common.h
(if implemented the *right* way)
Actually OMPI_F90_CHECK takes two arguments, not three.
- Only have corresponding C-Type, if the opt. Fortran
type is really supported,
Otherwise pass ompi_mpi_unavailable to DECLARE_MPI_SYNONYM_DDT;
- Reviewed by George and Jeff
This commit was SVN r15133.
Changes paffinity interface to use a cpu mask for available/preferred cpus
rather than the current coarse grained paffinity that lets the OS choose
which processor.
Macros for setting and clearing masks are provided.
Solaris and windows changes have not been made. Solaris subdirectory has some
suggested changes - however the relevant man pages for the Solaris 10 APIs
have some ambiguity regarding order in which one create and sets a processor
set. As we did not have access to a solaris 10 machine we could not test to
see the correct way to do the work under solaris.
This commit was SVN r14887.
symbols in them and environ is defined only in the final application
(probably in crt1.o). Apple provides a function for getting at the
environment, so use that instead if it's available.
This commit was SVN r14857.
an issue on Solaris where /usr/bin/grep doesn't understand -q. The
grep that AC_PROG_GREP finds (/usr/xpg4/bin/grep), which is POSIX
compliant and understands -q. Also fix one instance where egrep was
used instead of $EGREP.
This commit was SVN r14829.
* Move ipv6comat.h code into opal_config_bottom.h and change into some
more intelligent testing of structures
* Change opal's if interface to use sockaddr instead of sockaddr_storage,
as the RFCs suggest we do
* Move the networking code in opal that isn't directly related to if
detection into net.h
* Add quicky function to get the port out of either a sockaddr_in
or sockaddr_in6, saving a bunch of code in the oob.
* Update TCP oob and btl with new interface
This commit was SVN r14679.
* Require Autoconf 2.60 or higher and remove some cruft
required for AC 2.59 or the AC 2.59 / AC 2.60 mix
* Remove a bunch of now unnecessary AC_SUBST calls
* Use the libtool-provided variables for the -I and
library to use when compiling against ltdl
Fixes trac:1000
This commit was SVN r14652.
The following Trac tickets were found above:
Ticket 1000 --> https://svn.open-mpi.org/trac/ompi/ticket/1000
via the visibility feature that is provided by some compilers.
Per default this feature is disabled, to enable it you need to
configure with --enable-visibility and obviously you need a compiler
with visibility support. Please refer to the wiki for more information.
https://svn.open-mpi.org/trac/ompi/wiki/Visibility
This commit was SVN r14582.
finally brings in functionality that is already on the 1.2 branch, and
was developed and tested in the v1.2ofed branch (and other places).
Short version of new features:
* Support for ibv_fork_init()
* Automatically fill in the openib BTL bandwidth value by
querying the HCA port
* Installdirs functionality
* Fixes to always use -I in the Fortran wrapper compilers (#924)
* Gleb's mpool updates
* Remove some kruft in btl/openib/configure.m4, therefore
fixing the harmless warnings noted in #665
* Bunches of updates to the Linux RPM spec file
I.e., effectively the same thing that r14411 brought to the v1.2
branch.
Also effectively brought in r14432 and r14433 (some fixes on top of
the original r14411 commit to v1.2). Still need to bring in the moral
equivalent of r14445 after this commit (fixes to installdirs).
This commit was SVN r14449.
The following SVN revision numbers were found above:
r14411 --> open-mpi/ompi@83b31314ae
r14432 --> open-mpi/ompi@a48f160595
r14433 --> open-mpi/ompi@68f346d2bc
r14445 --> open-mpi/ompi@13d366b827
VXWorks, for example). Checked with George before committing this to
ensure that nothing broke on Windows -- he said it was ok.
This commit was SVN r14388.
This merge adds Checkpoint/Restart support to Open MPI. The initial
frameworks and components support a LAM/MPI-like implementation.
This commit follows the risk assessment presented to the Open MPI core
development group on Feb. 22, 2007.
This commit closes trac:158
More details to follow.
This commit was SVN r14051.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r13912
The following Trac tickets were found above:
Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
- mca_base_param_file_prefix
(Default: NULL)
This is the fullname of the "-am" mpirun option. Used to specify a ':'
separated list of AMCA parameter set files.
- mca_base_param_file_path
(Default: $SYSCONFDIR/amca-param-sets/:$CWD)
The path to search for AMCA files with relative paths. A warning will be
printed if the AMCA file cannot be found.
* Added a new function "mca_base_param_recache_files" the re-reads the file
configurations. This is used internally to help bootstrap the MCA system.
* Added a new orterun/mpirun command line option '-am' that aliases for the
mca_base_param_file_prefix MCA parameter
* Exposed the opal_path_access function as it is generally useful in other
places in the code.
* New function "opal_cmd_line_make_opt_mca" which will allow you to append a
new command line option with MCA parameter identifiers to set at the same
time. Previously this could only be done at command line declaration time.
* Added a new directory under the $pkgdatadir named "amca-param-sets" where all
the 'shipped with' Open MPI AMCA parameter sets are placed. This is the first
place to search for AMCA sets with relative paths.
* An example.conf AMCA parameter set file is located in
contrib/amca-param-sets/.
* Jeff Squyres contributed an OpenIB AMCA set for benchmarking.
Note: You will need to autogen with this commit as it adds a configure param.
Sorry :(
This commit was SVN r13867.
- Set ompi-specific autoconf cache-variables
- Implement one function to check for availability of an
attribute with the possibility for a cross-check.
- Do cross-checks for
__attribute__(format)
__attribute__(nonnull)
__attribute__(sentinel)
__attribute__(warn_unused_result)
- Grep the compilers warnings for keywords regarding ignored
attributes.
- Include also the no_instrument_function
This commit was SVN r13556.
Add new function opal_get_num_processors() that will return the number
of processors on the local host. Does the Right thing in POSIX
environments (to include a special case for OS X), and will shortly do
the Right Thing for Windows (this commit includes a change to
configure, so I wanted to get that in before the US workday -- the
Windows code can some shortly because it won't involve configury
changes).
This commit was SVN r13506.
The following Trac tickets were found above:
Ticket 853 --> https://svn.open-mpi.org/trac/ompi/ticket/853
remote nodes. It will also kill off rogue orteds and orterun
processes. The killing of processes is ifdef'ed out for Windows
since I do not know how to do it there. Note that this change
will requite an autogen.
This commit was SVN r13477.
Sorry for the configure change -- hopefully it's early enough in the
morning that it won't affect people... (new approach won't have a
configure change).
Refs trac:739.
This commit was SVN r13080.
The following Trac tickets were found above:
Ticket 739 --> https://svn.open-mpi.org/trac/ompi/ticket/739
been fixed in the 7.0 PGI series, but is unlikely to be fixed in the
6.2 series:
* Add a configure test looking for the bad behavior (the PGI compiler
chokes on C code where structs containing bool's are copied by
value)
* Set OMPI_BOOL_STRUCT_COPY to 1 if it's ok, 0 if it's not (i.e., PGI
6.2 series will have this value set to 0)
* In two places in the code base -- orte-clean and btl_openib_ini.h,
we have a struct that contains a bool that is copied by value. In
these two places, check OMPI_BOOL_STRUCT_COPY and if it's 1, use
the "int" type instead of "bool".
Fixes trac:739
This commit was SVN r13076.
The following Trac tickets were found above:
Ticket 739 --> https://svn.open-mpi.org/trac/ompi/ticket/739
* Have darwin backtrace code return an error when buffer() is
called, since it is not imnplemented
* Print out hostname & pid when giving signal information
* If backtrace_buffer() is implemented, use that instead of
backtrace_print() and prefix stacktrace with the hostname
* Make the signal information printed be more user friendly
* If we're using the backtrace_buffer() code, don't print
the last two functions (which will be show_stackframe()
then backtrace_buffer()) so that users won't keep thinking
the error occurred inside Open MPI (sneaky, yes...)
Refs trac:538
This commit was SVN r12883.
The following Trac tickets were found above:
Ticket 538 --> https://svn.open-mpi.org/trac/ompi/ticket/538
* Check that the C++, Fortran 77, and Objective C comilers emit code
that can link against object files emitted by the C compiler.
Moves some built / run time errors to configure time, which is
nice and should help with the debugging
* Remove unneeded -F option when building the XGrid components,
which started causing problems with LT 2.0.
* Try to use the XGridFoundation library, rather than just seeing
if we can give -framework XGridFoundation. Should make the
test slightly more accurate
* Don't assume XGrid is unavailable on 64 bit platforms, as that
won't be true on Leopard
* Require AM 1.10 or newer if using AC 2.60 or newer, so that
we don't have a split of AC supporting Objective C and AM
not doing so
This commit was SVN r12701.
Add placeholders for the new orte tools. These don't actually do anything yet - in fact, I have set the .ompi_ignore so that you won't compile them (I have set a .ompi_unignore for me). Please let me know if you encounter any trouble with this - the ompi_ignore's should protect everyone.
This commit was SVN r12616.
provide one for the internals of Open MPI. For mpi.h, typedef MPI_Aint
either to ptrdiff_t or whatever we used as ptrdiff_t if that type doesn't
actually exist.
This commit was SVN r12212.
The following SVN revision numbers were found above:
r12146 --> open-mpi/ompi@8852c00c36
8 bytes. Adjust the configure tests to allow for this case.
Refs trac:427
This commit was SVN r11859.
The following Trac tickets were found above:
Ticket 427 --> https://svn.open-mpi.org/trac/ompi/ticket/427
DIST_SUBDIRS in test/Makefile.am
This should fix this nightly tarball builds.
Rolling back part of r11542
This commit was SVN r11553.
The following SVN revision numbers were found above:
r11542 --> open-mpi/ompi@2becfbf650
to cause them to miscompile TCP-related code.
refs trac:276
This commit was SVN r11258.
The following Trac tickets were found above:
Ticket 276 --> https://svn.open-mpi.org/trac/ompi/ticket/276
Other changes:
1. Remove the old xcpu components as they are not functional.
2. Fix a "bug" in orterun whereby we called dump_aborted_procs even when we normally terminated. There is still some kind of bug in this procedure, however, as we appear to be calling the orterun job_state_callback function every time a process terminates (instead of only once when they have all terminated). I'll continue digging into that one.
This will require an autogen/configure, I'm afraid.
This commit was SVN r11228.
libevent-1.1a.
svn merge -r10917:11006 https://svn.open-mpi.org/svn/ompi/tmp/libevent-update
This commit was SVN r11022.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r10917
r11006
This moves the logic to create the symbolic links for:
- mpirun
- mpiexec
- ompi-ps
- ompi-clean
and their respective man pages to the ompi level from
the orte layer.
This is a bit pedantic, but orte shouldn't be doing the
work of ompi since that is a bit of an abstraction break.
Note: need to autogen.sh to get this. Sorry :(
This commit was SVN r10602.
per a request.
Currently it is not working well. That will soon change
as it just needs a bit of attention and testing to
make it lots-mo-betta.
This commit was SVN r10556.
per a request for its functionality into the main trunk.
This command provides basic information about a running job. It
needs a bit of attention, but works fine in its current iteration.
Please play with it, and lets try to work out all the left over bugs.
Pending action for this tool:
It has been requested that the tool be changed slightly to allow
it to be called via a function call from internal libraries
(e.g. orteconsole).
This commit was SVN r10554.
cannot include the PMPI_WTIME|WTICK functions in the external and
double precision statements because some compilers complain about
this. Instead, we need to use the macro that is defined by
configure.ac (MPIF_H_PMPI_W_FUNCS). This unfortunately means that we
need to generate mpif.h (in addition to mpif-config.h) because the
"external" statement is toxic to F90 compilers.
This commit was SVN r10464.
- Make the F90 bindings compile and link properly with gfortran 4.0,
4.1, Intel 9.0, PGI 6.1, Sun (don't know version offhand -- the most
current as of this writing, I think), and NAG 5.2, although some
have limitations (e.g., NAG can't seem to handle the medium and
large sizes)
- Building the F90 "small" module size is now the default, even for
developers
- Split up mpif.h into multiple files because parts of it were toxic
to the F90 bindings
- Properly specify unsized/unshaped arrays to make the bindings work
on all known compilers
- Make ompi_info show Fortran 90 bindings size
- XML somewhat lags the generated scripts as of this commit, but
functionality was my main goal -- the XML can be updated later (if
at all).
This commit was SVN r10118.
- split mpif.h into mpif.h and mpif-common.h[.in]
- mpif-common.h is included by various f90 things and contains output
from configure
- mpif.h defines some f77-specific stuff and then includes
mpif-common.h
This commit was SVN r9997.
svn merge -r 9453:9609 https://svn.open-mpi.org/svn/ompi/tmp/f90-stuff .
Several improvements over the current F90 MPI bindings:
- The capability to make 4 sizes of the F90 bindings:
- trivial: only the F90-specific MPI functions (sizeof and a few
others)
- small: (this is the default) all MPI functions that do not take
choice buffers
- medium: small + all MPI functions that take one choice buffer
(e.g., MPI_SEND)
- large: all MPI functions, but those that take 2 choice buffers
(e.g., MPI_GATHER) only allow both buffers to be of the same type
- Remove all non-standard MPI types (LOGICAL*x, CHARACTER*x)
- Remove use of selected_*_kind() and only use MPI-defined types
(INTEGER*x, etc.)
- Decrease complexity of the F90 configure and build system
This commit was SVN r9610.
still need to coordinate some Makefile.am changes with george tomorrow, but
this is the stuff that will require re-autogening
This commit was SVN r9285.
installation directories) in configure, the files that depend on this
information are not properly rebuilt. If you need this information,
don't setup a -D in the Makefile.am - instead, include
opal/install_dirs.h.
* Use the : option in AC_CONFIG_FILES to avoid needing to expose that
we are playing around with temporary files with our headers to avoid
rebuilding
* Clean up the version file information a bit, and like the install
directory stuff, make sure that there is a dependency so that
ompi_info gets rebuilt properly when a version number changes.
This commit was SVN r9256.
- Make the F90 checks use the identical types to the F77 checks (e.g.,
INTEGER*4, as opposed to potential selected_int_kind() equivalents)
- Comment out the F77 and F90 alignment check failure -- there is some
confusion here; some vendors apparently told Craig R. yesterday that
they change the alignments of types based on whether the instance is
a standalone variable, in an array, or a member of a struct.
More investigation is needed (and potentially clarification for MPI
users -- this could be quite problematic!), but this alignment test is
otherwise hosing the nightlies, so it needs to be taken out for the
moment.
This commit was SVN r9031.
changes. The two Big Changes are elegance (much more re-use of code
rather than cut-n-pasting the same code over and over and over and...)
and enabling cross-compilation for F77 and F90 (because we actually
have to *run* some compiled F77 and F90 programs for some of the
tests, which obviously won't work in a cross-compilation environment
-- so enable the use of config.cache to load such values in
cross-compiling environments).
This commit was SVN r8991.
- move files out of toplevel include/ and etc/, moving it into the
sub-projects
- rather than including config headers with <project>/include,
have them as <project>
- require all headers to be included with a project prefix, with
the exception of the config headers ({opal,orte,ompi}_config.h
mpi.h, and mpif.h)
This commit was SVN r8985.
new wrapper compilers for the OMPI layer. This should require no changes
at all for anyone (other than running autogen, of course)
This commit was SVN r8772.
r8698), with changes below:
- Split wrapper flags into those required for each of the three projects,
and cleaned up some cruft (including the LIBMPI_EXTRA_*FLAGS) through-
out the build system
- Added opal_init_util and opal_finalize_util to allow init / cleanup
of all the opal code that doesn't require the MCA system
- Create standalone key=value file parser, based on the one that used
to be in the mca param parser, so that it can be shared in multiple
places
- Add wrapper datafiles for opal, orte, and ompi wrappers, and add
wrapper compiler with support for all the old features
This commit was SVN r8699.
The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
r8690
r8698
determine values like Fortran alignment (which can only be determined by
running a program) when cross-compiling. By providing cache values, the
programs will not be run at all, and life will be good. Also clean up
some macro interfaces so that they are a bit easier to use, at the cost
of horrid internals ;).
This commit was SVN r8684.
- don't fail to configure if threads aren't found, since
we don't have thread support on windows
- rather than setting the asm file name to none in asm-data,
special case windows w/ CL in the ompi_config_asm macros.
Otherwise, there were some warnings during make dist and
configure that didn't need to be there.
This commit was SVN r8502.
- add the right asm format
- add checks for some constants / fields that cygwin
doesn't have in the stacktrace code
- fix for slightly more verbose libtool 2 betas that
have multiple lines for link output
This commit was SVN r8501.
- since we now have three places where we need to add a -l<foo> if
and only if it isn't already in something in LIBS that provides
symbol bar...
This commit was SVN r8370.
ability at this point to roll back and build without libltdl if we thought we
we going to have libltdl (we can configure without libltdl if we know from
the start it won't be there, from --disable-dlopen).
This commit was SVN r8336.
following for the rationale:
http://www.open-mpi.org/community/lists/users/2005/11/0391.php
Note that mpi.h only receives AC_DEFINE's (not AC_SUBST's), so we
still have to AC_DEFINE to get the value in there -- so we AC_DEFINE
something that we give to a typedef.
This commit was SVN r8326.
case of:
sizeof(MPI_Flogical) != sizeof (int)
and
Fortran value of .TRUE. != 1
as is often the case.
- Check in configure the value of .TRUE., the C-type coresponding to
logical and check, that fortran compiler does not do something strange
with arrays of logicals
- Convert all occurrences of logicals in the fortran wrappers, only
in case it is needed.
*Please note* Implementation of MPI_Cart_sub needed special treatment.
- Output these value in ompi_info -a
- Clean up the prototypes_mpi.h to just have a single definition and
thereby deleting the necessity for prototypes_pmpi.h
- configured, compiled and tested with F90-program, which uses
MPI_Cart_create and MPI_Cart_get:
linux ia32, gcc (no testing, as no f90)
linux ia32, gcc --disable-mpi-f77 --disable-mpi-f90 (had a bug there)
linux ia32, icc-8.1
linux opteron, gcc-3.3.5, pgcc, pathccx/pathf90 (tested just
pgi-compiler)
linux em64t, gcc, icc-8.1 (tested just icc)
This commit was SVN r8254.
it doesn't support it -- the compiler will automatically convert the
unsupported type to a type that it *does* support. For example, if
you try to use INTEGER*16 and the compiler doesn't support it, it may
well automatically convert it to INTEGER*8 for you (!). So we have to
check the actual size of the type once we determine that the compiler
doesn't error if we try to use it (i.e,. the compiler *might* support
that type). If the size doesn't match the expected size, then the
compiler doesn't really support it.
The F77 configure code actually handled this properly. The F90 code
did not quite do it right. This patch brings the F90 code up to the
same structure as the F77 code, albiet not m4-ized properly. I also
added a comment to config/f77_check.m4 that explains *why* we do this
extra size check (because no explanation was given).
The impetus for this was that xlf* on OS X 10.3 was not recognizing
that INTEGER*16 was not supported, and mpi-f90-interfaces.h was being
assembled incorrectly. This patch fixes this problem.
There is still one more problem, but waiting for some help from Craig
R on that (function pointers in F90 declarations).
This commit was SVN r8107.
originally suggested by Ralf Wildenhues, to try to speed autogen, configure,
and make (and possibly even make install). Use automake's include directive
to drastically reduce the number of Makefile files (although the number of
Makefile.am files is the same - most are just included in a top-level
Makefile.am). Also use an Automake SUBDIRs feature to eliminate the
dynamic-mca tree, which was no longer really needed. This makes adding
a framework easier (since you don't have to remember the dynamic-mca
tree) and makes building faster (as make doesn't have to recurse through
the dynamic-mca tree)
This commit was SVN r7777.
a random string of characters as part of the version number (the really
soon to happen 1.0lanl release and the 1.1sc2005 release that we've
talked about). So rather than having alpha and beta fields that must
be numeric values, have a general field that can be any alphanumeric
value.
This commit was SVN r7511.
C / C++ tests now use the caching scheme. Only exception is C++ exception
handling code, which is disabled by default, so I'm not too worried about making
that configure faster :)
This commit was SVN r7403.
AM_INIT_AUTOMAKE, instead of the deprecated version.
* Work around dumbness in modern AC_INIT that requires the version
number to be set at autoconf time (instead of at configure time, as
it was before). Set the version number, minus the subversion r number,
at autoconf time. Override the internal variables to include the r
number (if needed) at configure time. Basically, the right thing
should always happen. The only place it might not is the version
reported as part of configure --help will not have an r number.
* Since AM_INIT_AUTOMAKE taks a list of options, no need to specify
them in all the Makefile.am files.
* Addes support for subdir-objects, meaning that object files are put
in the directory containing source files, even if the Makefile.am is
in another directory. This should start making it feasible to
reduce the number of Makefile.am files we have in the tree, which
will greatly reduce the time to run autogen and configure.
This commit was SVN r7211.
add a -I to find the included ltdl.h (vs. a system-installed ltdl.h)
- Clean up kruft in a bunch of Makefile.am's to remove now-unnecessary
AM_CPPFLAGS settings to get static-components.h for each framework
- Move the component_repository API functions out of opal/mca/base/base.h
and into opal/mca/base/mca_base_component_repository.h in order to
decrease unnecessary dependencies (e.g., before this, almost
everything in the tree depended on ltdl.h, which is unnecessary --
only a small number of files really need ltdl.h)
This commit was SVN r7127.
include any optimization flags
- Use these flags to always compile ompi/debuggers/* and orterun so
that parallel debuggers (such as Totalview) can always see the
debugging symbols (see comments in ompi/debuggers/Makefile.am and
orte/tools/orterun/Makefile.am)
- Remove some obsolete LAM-named variables from configure.ac
This commit was SVN r7125.
friendly #defines to be included in mpi.h (even for users), such as
_GNU_SOURCE, which can have some really big consequences on Linux.
Instead, add mpi.h to AC_CONFIG_HEADERS and just include the #defines
we have to have for mpi.h and the C++ bindings.
This commit was SVN r7022.
not to build to not be added to the ALL_COMPONENTS list and therefore
not distributed in a tarball
* add some of the contrib/ stuff to the dist tarball (the stuff to
make binary packages and the "--with-platform" files)
This commit was SVN r6955.
callbacks to be triggered when memory is about to leave the current
process. The system is designed to allow a variety of interfaces,
hopefully including whole-sale replacement of the memory manager,
ld preload tricks, and hooks into the system memory manager. Since
some of these may or may not be available at runtime and we won't know
until runtime, there is a query funtion to look for availability of
such a setup.
* Added ptmalloc2 memory manager replacement code. Not turned on by
default, can be enabled with --with-memory-manager=ptmalloc2.
Only tested on Linux, not even compiled elsewhere. Do not use
on OS X, or you will never see your process again.
* Added AM_CONDITIONAL for threads test to support ptmalloc2's build
system
This commit was SVN r6790.
load a set of arguments to build OMPI. So you can do something like:
./configure --with-platform=redstorm
and automagically have all 10,000 arguments to configure required
for Red Storm magically set
* change all instances of sinclude to m4_include so that autogen
will properly fail if an .m4 file isn't included properly
This commit was SVN r6648.
- Fix up the F90 void * sizeof detection, and ensure that we
AC_MSG_ERROR if we can't support OMPI_MPI_ADDRESS_KIND (highly
unlikely, but...)
This commit was SVN r6639.
- only call sched_yield if it exists
- don't fail out if modex doens't work in ob1
- bunch of fixes for Portals BTL
- add cnos rml component
- add NULL gpr component (should only be used if replica AND proxy
fail to load)
This commit was SVN r6629.
* Add ability to completely disable libltdl (the dlopen code to load
dynamic shared objects) to configure: --disable-dlopen
* Added MCA param (component_disable_dlopen) to disable DSO loading
at runtime
* Made the event library behave in some not-completely-erroneous way
on platforms where it has absolutely no eventops support (ie, no
select, poll, or epoll)
* Disabled orte_wait, opal_few, and opal_daemon_init code on
platforms without fork, waitpid support. All non-init functions
will return OPMI_ERR_NOT_SUPPORTED
* Disable orteprobe tool when fork or pipe aren't supported
This commit was SVN r6490.
Red Storm. Add stub functions to ompi_config_bottom.h when they are
around
* Add protection for a bunch of #include <netinet/in.h>s
* Fix up the Portals BTL so that it compiles on Red Storm and has the
right mojo for initialization on Red Storm
* Add some important comments to ompi_check_package and mvapi configures
* Add support for platforms without getpwuid() (aka, Red Storm).
This commit was SVN r6478.
