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Announcing the availability of mpich-3.1b1
by Pavan Balaji 08 Aug '13

08 Aug '13

The MPICH team is pleased to announce the availability of a new preview release (mpich-3.1b1). This preview release is the first in a new major version series in mpich (3.1), and adds several capabilities including a fully integrated source for vanilla MPICH and the IBM PE/BG device, several improvements for the Intel Xeon Phi architecture, improved support for fault tolerance, and improvements to MPI RMA for shared memory communication. This release also fixes several bugs present in 3.0.4. http://www.mpich.org A list of changes in this release is included at the end of this email. Regards, The MPICH Team =============================================================================== Changes in 3.1b1 =============================================================================== # Integrated MPICH-PAMI code base for Blue Gene/Q and other IBM platforms. # Several improvements to the SCIF netmod. (code contribution from Intel). # Added environment variables to control a lot more capabilities for collectives. See the README.envvar file for more information. # Allow non-blocking collectives and fault tolerance at the same time. The option MPIR_PARAM_ENABLE_COLL_FT_RET has been removed as it is no longer necessary. # Improvements to MPI_WIN_ALLOCATE to internally allocate shared memory between processes on the same node (the "alloc_shm" info argument needs to be provided). # Enable shared library builds by default. # Upgraded hwloc to 1.7.1. # Several improvements to the Hydra-SLURM integration. # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available at the following link: http://git.mpich.org/mpich.git/shortlog/v3.0.4..v3.1b1 -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Retagged mpich-3.0.4
by Pavan Balaji 25 Apr '13

25 Apr '13

All, We accidentally tagged mpich-3.0.4 incorrectly in the mpich git repo to point to [85acf6c5], instead of the correct hash [0f1067da]. The release tarball is still fine; just the git tag was incorrect. We have fixed this in the git repo now. If you have pulled the 3.0.4 tag from the mpich git repo, please correct your cloned copy using: % git tag -d v3.0.4 % git fetch origin tag v3.0.4 You might also be able to do: % git pull --tags (though we are not entirely sure that'll work). Sorry about the mess-up. Once again, the release tarball is correct. Just the tag was incorrect. Regards, The MPICH Team -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Announcing the availability of mpich-3.0.4
by Pavan Balaji 24 Apr '13

24 Apr '13

The MPICH team is pleased to announce the availability of a new bug-fix release (mpich-3.0.4). This release adds several performance features for the Hydra process manager, support for communicator-specific tuning of eager/rendezvous thresholds, and fixes several bugs present in 3.0.3. http://www.mpich.org A list of changes in this release is included at the end of this email. Regards, The MPICH Team =============================================================================== Changes in 3.0.4 =============================================================================== # BUILD SYSTEM: Reordered the default compiler search to prefer Intel and PG compilers over GNU compilers because of the performance difference. WARNING: If you do not explicitly specify the compiler you want through CC and friends, this might break ABI for you relative to the previous 3.0.x release. # OVERALL: Added support to manage per-communicator eager-rendezvous thresholds. # PM/PMI: Performance improvements to the Hydra process manager on large-scale systems by allowing for key/value caching. # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available at the following link: http://git.mpich.org/mpich.git/shortlog/v3.0.3..v3.0.4 -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Announcing the availability of MPICH 3.0.3
by Dave Goodell 28 Mar '13

28 Mar '13

The MPICH team is pleased to announce the availability of a new bug-fix release (MPICH-3.0.3). http://www.mpich.org/ A list of changes in this release is included at the end of this email. Regards, The MPICH Team =============================================================================== Changes in 3.0.3 =============================================================================== # RMA: Added a new mechanism for piggybacking RMA synchronization operations, which improves the performance of several synchronization operations, including Flush. # RMA: Added an optimization to utilize the MPI_MODE_NOCHECK assertion in passive target RMA to improve performance by eliminating a lock request message. # RMA: Added a default implementation of shared memory windows to CH3. This adds support for this MPI 3.0 feature to the ch3:sock device. # RMA: Fix a bug that resulted in an error when RMA operation request handles where completed outside of a synchronization epoch. # PM/PMI: Upgraded to hwloc-1.6.2rc1. This version uses libpciaccess instead of libpci, to workaround the GPL license used by libpci. # PM/PMI: Added support for the Cobalt process manager. # BUILD SYSTEM: allow MPI_LONG_DOUBLE_SUPPORT to be disabled with a configure option. # FORTRAN: fix MPI_WEIGHTS_EMPTY in the Fortran bindings # MISC: fix a bug in MPI_Get_elements where it could return incorrect values # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available at the following link: http://git.mpich.org/mpich.git/shortlog/v3.0.2..v3.0.3

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Announcing the availability of MPICH 3.0.2
by Dave Goodell 30 Jan '13

30 Jan '13

The MPICH team is pleased to announce the availability of a new bug-fix release (MPICH-3.0.2). http://www.mpich.org/ A list of changes in this release is included at the end of this email. Regards, The MPICH Team =============================================================================== Changes in 3.0.2 =============================================================================== # PM/PMI: Upgrade to hwloc-1.6.1 # RMA: Performance enhancements for shared memory windows. # COMPILER INTEGRATION: minor improvements and fixes to the clang static type checking annotation macros. # MPI-IO (ROMIO): improved error checking for user errors, contributed by IBM. # MPI-3 TOOLS INTERFACE: new MPI_T performance variables providing information about nemesis communication behavior and and CH3 message matching queues. # TEST SUITE: "make testing" now also outputs a "summary.tap" file that can be interpreted with standard TAP consumer libraries and tools. The "summary.xml" format remains unchanged. # GIT: This is the first release built from the new git repository at git.mpich.org. A few build system mechanisms have changed because of this switch. # BUG FIX: resolved a compilation error related to LLONG_MAX that affected several users (ticket #1776). # BUG FIX: nonblocking collectives now properly make progress when MPICH is configured with the ch3:sock channel (ticket #1785). # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available at the following link: http://git.mpich.org/mpich.git/shortlog/v3.0.1..v3.0.2

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Announcing the availability of MPICH 3.0.1
by Dave Goodell 20 Dec '12

20 Dec '12

The MPICH team is pleased to announce the availability of a new bug-fix release (MPICH-3.0.1). http://www.mpich.org/ The previous release, 3.0, contained a major bug in hydra and should not be used. Please use 3.0.1 instead. Please accept our apologies for any inconvenience this may have caused. Regards, The MPICH Team

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Announcing the availability of MPICH 3.0
by Dave Goodell 19 Dec '12

19 Dec '12

The MPICH team is pleased to announce the availability of a new major release (MPICH-3.0). http://www.mpich.org/ The primary focus of this release is to provide full support for the MPI-3 standard. But other features, such as support for ARM v7 native atomics, are also included. Windows binaries are not available at this time. We are unable to provide an ETA for Windows support right now, but it will probably not be soon. The major additions in the 3.0 release since the 1.5 release are highlighted below. Regards, The MPICH Team =============================================================================== Changes in 3.0 =============================================================================== # MPI-3: All MPI-3 features are now implemented and the MPI_VERSION bumped up to 3.0. # OVERALL: Added support for ARM-v7 native atomics # MPE: MPE is now separated out of MPICH and can be downloaded/used as a separate package. # PM/PMI: Upgraded to hwloc-1.6 # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available using: svn log -r10344:HEAD https://svn.mcs.anl.gov/repos/mpi/mpich2/tags/release/mpich-3.0 ... or at the following link: https://trac.mcs.anl.gov/projects/mpich2/log/mpich2/tags/release/mpich-3.0?…

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Announcing the availability of MPICH 3.0rc1
by Pavan Balaji 13 Nov '12

13 Nov '12

The MPICH team is pleased to announce the availability of the first release candidate (rc1) in the new major release series (mpich-3.0). http://www.mpich.org/ MPICH-3.0rc1 is the first preview of a major feature release. The primary focus of this release is to provide full support for the MPI-3 standard. But other features including support for ARM v7 native atomics are also included. This is a feature-preview release. MPICH2 developers, testers and other advanced users are encouraged to try this release out and let us know if you encounter any problems. This release is not intended for production systems at this time; such systems should continue to use the latest release from the 1.5.x branch (currently 1.5). The major additions in the 3.0rc1 release are highlighted below. Regards, The MPICH Team =============================================================================== Changes in 3.0rc1 =============================================================================== # MPI-3: All MPI-3 features are now implemented and the MPI_VERSION bumped up to 3.0. # OVERALL: Added support for ARM-v7 native atomics # MPE: MPE is now separated out of MPICH and can be downloaded/used as a separate package. # Several other minor bug fixes, memory leak fixes, and code cleanup. A full list of changes is available using: svn log -r10344:HEAD https://svn.mcs.anl.gov/repos/mpi/mpich2/tags/release/mpich-3.0rc1 ... or at the following link: https://trac.mcs.anl.gov/projects/mpich2/log/mpich2/tags/release/mpich-3.0r… -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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Mailing list migration announcement
by Pavan Balaji 12 Nov '12

12 Nov '12

Dear all, As a part of our preparation to move to the http://www.mpich.org domain, we have renamed our mailing lists as follows: mpich-announce(a)mcs.anl.gov is now called announce(a)mpich.org mpich-discuss(a)mcs.anl.gov is now called discuss(a)mpich.org mpich2-dev(a)mcs.anl.gov is now called devel(a)mpich.org We have migrated the users in each of these mailing lists to the new lists, including all your settings (such as digest mode, for example). However, we apologize if this causes discrepancy for any mail filters that you might have setup. The old mailing lists will still have active, but will forward all emails to the new lists. The website itself is offline for the moment (the old website http://www.mcs.anl.gov/research/projects/mpich2 is still available). The website will go live tomorrow. Regards, -- Pavan -- Pavan Balaji http://www.mcs.anl.gov/~balaji

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