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Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
University Research and Technology
Corporation. All rights reserved.
Copyright (c) 2004-2006 The University of Tennessee and The University
of Tennessee Research Foundation. All rights
reserved.
Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
University of Stuttgart. All rights reserved.
Copyright (c) 2004-2006 The Regents of the University of California.
All rights reserved.
Copyright (c) 2006-2017 Cisco Systems, Inc. All rights reserved.
Copyright (c) 2006 Voltaire, Inc. All rights reserved.
Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
Copyright (c) 2006-2016 Los Alamos National Security, LLC. All rights
reserved.
Copyright (c) 2010-2012 IBM Corporation. All rights reserved.
Copyright (c) 2012 Oak Ridge National Labs. All rights reserved.
Copyright (c) 2012 Sandia National Laboratories. All rights reserved.
Copyright (c) 2012 University of Houston. All rights reserved.
Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
Copyright (c) 2013-2017 Intel, Inc. All rights reserved.
$COPYRIGHT$
Additional copyrights may follow
$HEADER$
===========================================================================
This file contains the main features as well as overviews of specific
bug fixes (and other actions) for each version of Open MPI since
version 1.0.
As more fully described in the "Software Version Number" section in
the README file, Open MPI typically releases two separate version
series simultaneously. Since these series have different goals and
are semi-independent of each other, a single NEWS-worthy item may be
introduced into different series at different times. For example,
feature F was introduced in the vA.B series at version vA.B.C, and was
later introduced into the vX.Y series at vX.Y.Z.
The first time feature F is released, the item will be listed in the
vA.B.C section, denoted as:
(** also to appear: X.Y.Z) -- indicating that this item is also
likely to be included in future release
version vX.Y.Z.
When vX.Y.Z is later released, the same NEWS-worthy item will also be
included in the vX.Y.Z section and be denoted as:
(** also appeared: A.B.C) -- indicating that this item was previously
included in release version vA.B.C.
Master (not on release branches yet)
------------------------------------
- ompi_info parsable output now escapes double quotes in values, and
also quotes values can contains colons. Thanks to Lev Givon for the
suggestion.
- CUDA-aware support can now handle GPUs within a node that do not
support CUDA IPC. Earlier versions would get error and abort.
- Do not build the MPI C++ bindings by default. They must be enabled
via --enable-mpi-cxx.
- Removed embedded VampirTrace. It is in maintenance mode since 2013.
Please consider Score-P (score-p.org) as an external replacement.
2.0.2 -- 26 January 2017
-------------------------
Bug fixes/minor improvements:
- Fix a problem with MPI_FILE_WRITE_SHARED when using MPI_MODE_APPEND and
Open MPI's native MPI-IO implementation. Thanks to Nicolas Joly for
reporting.
- Fix a typo in the MPI_WIN_GET_NAME man page. Thanks to Nicolas Joly
for reporting.
- Fix a race condition with ORTE's session directory setup. Thanks to
@tbj900 for reporting this issue.
- Fix a deadlock issue arising from Open MPI's approach to catching calls to
munmap. Thanks to Paul Hargrove for reporting and helping to analyze this
problem.
- Fix a problem with PPC atomics which caused make check to fail unless builtin
atomics configure option was enabled. Thanks to Orion Poplawski for reporting.
- Fix a problem with use of x86_64 cpuid instruction which led to segmentation
faults when Open MPI was configured with -O3 optimization. Thanks to Mark
Santcroos for reporting this problem.
- Fix a problem when using built in atomics configure options on PPC platforms
when building 32 bit applications. Thanks to Paul Hargrove for reporting.
- Fix a problem with building Open MPI against an external hwloc installation.
Thanks to Orion Poplawski for reporting this issue.
- Remove use of DATE in the message queue version string reported to debuggers to
insure bit-wise reproducibility of binaries. Thanks to Alastair McKinstry
for help in fixing this problem.
- Fix a problem with early exit of a MPI process without calling MPI_FINALIZE
or MPI_ABORT that could lead to job hangs. Thanks to Christof Koehler for
reporting.
- Fix a problem with forwarding of SIGTERM signal from mpirun to MPI processes
in a job. Thanks to Noel Rycroft for reporting this problem
- Plug some memory leaks in MPI_WIN_FREE discovered using Valgrind. Thanks
to Joseph Schuchart for reporting.
- Fix a problems MPI_NEIGHOR_ALLTOALL when using a communicator with an empty topology
graph. Thanks to Daniel Ibanez for reporting.
- Fix a typo in a PMIx component help file. Thanks to @njoly for reporting this.
- Fix a problem with Valgrind false positives when using Open MPI's internal memchecker.
Thanks to Yvan Fournier for reporting.
- Fix a problem with MPI_FILE_DELETE returning MPI_SUCCESS when
deleting a non-existent file. Thanks to Wei-keng Liao for reporting.
- Fix a problem with MPI_IMPROBE that could lead to hangs in subsequent MPI
point to point or collective calls. Thanks to Chris Pattison for reporting.
- Fix a problem when configure Open MPI for powerpc with --enable-mpi-cxx
enabled. Thanks to Alastair McKinstry for reporting.
- Fix a problem using MPI_IALLTOALL with MPI_IN_PLACE argument. Thanks to
Chris Ward for reporting.
- Fix a problem using MPI_RACCUMULATE with the Portals4 transport. Thanks to
@PDeveze for reporting.
- Fix an issue with static linking and duplicate symbols arising from PMIx
Slurm components. Thanks to Limin Gu for reporting.
- Fix a problem when using MPI dynamic memory windows. Thanks to
Christoph Niethammer for reporting.
- Fix a problem with Open MPI's pkgconfig files. Thanks to Alastair McKinstry
for reporting.
- Fix a problem with MPI_IREDUCE when the same buffer is supplied for the
send and recv buffer arguments. Thanks to Valentin Petrov for reporting.
- Fix a problem with atomic operations on PowerPC. Thanks to Paul
Hargrove for reporting.
Known issues (to be addressed in v2.0.3):
- See the list of fixes slated for v2.0.3 here:
https://github.com/open-mpi/ompi/milestone/23
2.0.1 -- 2 September 2016
-----------------------
Bug fixes/minor improvements:
- Short message latency and message rate performance improvements for
all transports.
- Fix shared memory performance when using RDMA-capable networks.
Thanks to Tetsuya Mishima and Christoph Niethammer for reporting.
- Fix bandwith performance degredation in the yalla (MXM) PML. Thanks
to Andreas Kempf for reporting the issue.
- Fix OpenSHMEM crash when running on non-Mellanox MXM-based networks.
Thanks to Debendra Das for reporting the issue.
- Fix a crash occuring after repeated calls to MPI_FILE_SET_VIEW with
predefined datatypes. Thanks to Eric Chamberland and Matthew
Knepley for reporting and helping chase down this issue.
- Fix stdin propagation to MPI processes. Thanks to Jingchao Zhang
for reporting the issue.
- Fix various runtime and portability issues by updating the PMIx
internal component to v1.1.5.
- Fix process startup failures on Intel MIC platforms due to very
large entries in /proc/mounts.
- Fix a problem with use of relative path for specifing executables to
mpirun/oshrun. Thanks to David Schneider for reporting.
- Various improvements when running over portals-based networks.
- Fix thread-based race conditions with GNI-based networks.
- Fix a problem with MPI_FILE_CLOSE and MPI_FILE_SET_SIZE. Thanks
to Cihan Altinay for reporting.
- Remove all use of rand(3) from within Open MPI so as not to perturb
applications use of it. Thanks to Matias Cabral and Noel Rycroft
for reporting.
- Fix crash in MPI_COMM_SPAWN.
- Fix types for MPI_UNWEIGHTED and MPI_WEIGHTS_EMPTY. Thanks to
Lisandro Dalcin for reporting.
- Correctly report the name of MPI_INTEGER16.
- Add some missing MPI constants to the Fortran bindings.
- Fixed compile error when configuring Open MPI with --enable-timing.
- Correctly set the shared library version of libompitrace.so. Thanks
to Alastair McKinstry for reporting.
- Fix errors in the MPI_RPUT, MPI_RGET, MPI_RACCUMULATE, and
MPI_RGET_ACCUMULATE Fortran bindings. Thanks to Alfio Lazzaro and
Joost VandeVondele for tracking this down.
- Fix problems with use of derived datatypes in non-blocking
collectives. Thanks to Yuki Matsumoto for reporting.
- Fix problems with OpenSHMEM header files when using CMake. Thanks to
Paul Kapinos for reporting the issue.
- Fix problem with use use of non-zero lower bound datatypes in
collectives. Thanks to Hristo Iliev for reporting.
- Fix a problem with memory allocation within MPI_GROUP_INTERSECTION.
Thanks to Lisandro Dalcin for reporting.
- Fix an issue with MPI_ALLGATHER for communicators that don't consist
of two ranks. Thanks to David Love for reporting.
- Various fixes for collectives when used with esoteric MPI datatypes.
- Fixed corner cases of handling DARRAY and HINDEXED_BLOCK datatypes.
- Fix a problem with filesystem type check for OpenBSD.
Thanks to Paul Hargrove for reporting.
- Fix some debug input within Open MPI internal functions. Thanks to
Durga Choudhury for reporting.
- Fix a typo in a configury help message. Thanks to Paul Hargrove for
reporting.
- Correctly support MPI_IN_PLACE in MPI_[I]ALLTOALL[V|W] and
MPI_[I]EXSCAN.
- Fix alignment issues on SPARC platforms.
Known issues (to be addressed in v2.0.2):
- See the list of fixes slated for v2.0.2 here:
https://github.com/open-mpi/ompi/milestone/20, and
https://github.com/open-mpi/ompi-release/milestone/19
(note that the "ompi-release" Github repo will be folded/absorbed
into the "ompi" Github repo at some point in the future)
2.0.0 -- 12 July 2016
---------------------
**********************************************************************
* Open MPI is now fully MPI-3.1 compliant
**********************************************************************
Major new features:
- Many enhancements to MPI RMA. Open MPI now maps MPI RMA operations
on to native RMA operations for those networks which support this
capability.
- Greatly improved support for MPI_THREAD_MULTIPLE (when configured
with --enable-mpi-thread-multiple).
- Enhancements to reduce the memory footprint for jobs at scale. A
new MCA parameter, "mpi_add_procs_cutoff", is available to set the
threshold for using this feature.
- Completely revamped support for memory registration hooks when using
OS-bypass network transports.
- Significant OMPIO performance improvements and many bug fixes.
- Add support for PMIx - Process Management Interface for Exascale.
Version 1.1.2 of PMIx is included internally in this release.
- Add support for PLFS file systems in Open MPI I/O.
- Add support for UCX transport.
- Simplify build process for Cray XC systems. Add support for
using native SLURM.
- Add a --tune mpirun command line option to simplify setting many
environment variables and MCA parameters.
- Add a new MCA parameter "orte_default_dash_host" to offer an analogue
to the existing "orte_default_hostfile" MCA parameter.
- Add the ability to specify the number of desired slots in the mpirun
--host option.
Changes in behavior compared to prior versions:
- In environments where mpirun cannot automatically determine the
number of slots available (e.g., when using a hostfile that does not
specify "slots", or when using --host without specifying a ":N"
suffix to hostnames), mpirun now requires the use of "-np N" to
specify how many MPI processes to launch.
- The MPI C++ bindings -- which were removed from the MPI standard in
v3.0 -- are no longer built by default and will be removed in some
future version of Open MPI. Use the --enable-mpi-cxx-bindings
configure option to build the deprecated/removed MPI C++ bindings.
- ompi_info now shows all components, even if they do not have MCA
parameters. The prettyprint output now separates groups with a
dashed line.
- OMPIO is now the default implementation of parallel I/O, with the
exception for Lustre parallel filesystems (where ROMIO is still the
default). The default selection of OMPI vs. ROMIO can be controlled
via the "--mca io ompi|romio" command line switch to mpirun.
- Per Open MPI's versioning scheme (see the README), increasing the
major version number to 2 indicates that this version is not
ABI-compatible with prior versions of Open MPI. You will need to
recompile MPI and OpenSHMEM applications to work with this version
of Open MPI.
- Removed checkpoint/restart code due to loss of maintainer. :-(
- Change the behavior for handling certain signals when using PSM and
PSM2 libraries. Previously, the PSM and PSM2 libraries would trap
certain signals in order to generate tracebacks. The mechanism was
found to cause issues with Open MPI's own error reporting mechanism.
If not already set, Open MPI now sets the IPATH_NO_BACKTRACE and
HFI_NO_BACKTRACE environment variables to disable PSM/PSM2's
handling these signals.
Removed legacy support:
- Removed support for OS X Leopard.
- Removed support for Cray XT systems.
- Removed VampirTrace.
- Removed support for Myrinet/MX.
- Removed legacy collective module:ML.
- Removed support for Alpha processors.
- Removed --enable-mpi-profiling configure option.
Known issues (to be addressed in v2.0.1):
- See the list of fixes slated for v2.0.1 here:
https://github.com/open-mpi/ompi/milestone/16, and
https://github.com/open-mpi/ompi-release/milestone/16
(note that the "ompi-release" Github repo will be folded/absorbed
into the "ompi" Github repo at some point in the future)
- ompi-release#986: Fix data size counter for large ops with fcoll/static
- ompi-release#987: Fix OMPIO performance on Lustre
- ompi-release#1013: Fix potential inconsistency in btl/openib default settings
- ompi-release#1014: Do not return MPI_ERR_PENDING from collectives
- ompi-release#1056: Remove dead profile code from oshmem
- ompi-release#1081: Fix MPI_IN_PLACE checking for IALLTOALL{V|W}
- ompi-release#1081: Fix memchecker in MPI_IALLTOALLW
- ompi-release#1081: Support MPI_IN_PLACE in MPI_(I)ALLTOALLW and MPI_(I)EXSCAN
- ompi-release#1107: Allow future PMIx support for RM spawn limits
- ompi-release#1108: Fix sparse group process reference counting
- ompi-release#1109: If specified to be oversubcribed, disable binding
- ompi-release#1122: Allow NULL arrays for empty datatypes
- ompi-release#1123: Fix signed vs. unsigned compiler warnings
- ompi-release#1123: Make max hostname length uniform across code base
- ompi-release#1127: Fix MPI_Compare_and_swap
- ompi-release#1127: Fix MPI_Win_lock when used with MPI_Win_fence
- ompi-release#1132: Fix typo in help message for --enable-mca-no-build
- ompi-release#1154: Ensure pairwise coll algorithms disqualify themselves properly
- ompi-release#1165: Fix typos in debugging/verbose message output
- ompi-release#1178: Fix ROMIO filesystem check on OpenBSD 5.7
- ompi-release#1197: Fix Fortran pthread configure check
- ompi-release#1205: Allow using external PMIx 1.1.4 and 2.0
- ompi-release#1215: Fix configure to support the NAG Fortran compiler
- ompi-release#1220: Fix combiner args for MPI_HINDEXED_BLOCK
- ompi-release#1225: Fix combiner args for MPI_DARRAY
- ompi-release#1226: Disable old memory hooks with recent gcc versions
- ompi-release#1231: Fix new "patcher" support for some XLC platforms
- ompi-release#1244: Fix Java error handling
- ompi-release#1250: Ensure TCP is not selected for RDMA operations
- ompi-release#1252: Fix verbose output in coll selection
- ompi-release#1253: Set a default name for user-defined MPI_Op
- ompi-release#1254: Add count==0 checks in some non-blocking colls
- ompi-release#1258: Fix "make distclean" when using external pmix/hwloc/libevent
- ompi-release#1260: Clean up/uniform mca/coll/base memory management
- ompi-release#1261: Remove "patcher" warning message for static builds
- ompi-release#1263: Fix IO MPI_Request for 0-size read/write
- ompi-release#1264: Add blocking fence for SLURM operations
Bug fixes / minor enhancements:
- Updated internal/embedded copies of third-party software:
- Update the internal copy of ROMIO to that which shipped in MPICH
3.1.4.
- Update internal copy of libevent to v2.0.22.
- Update internal copy of hwloc to v1.11.2.
- Notable new MCA parameters:
- opal_progress_lp_call_ration: Control how often low-priority
callbacks are made during Open MPI's main progress loop.
- opal_common_verbs_want_fork_support: This replaces the
btl_openib_want_fork_support parameter.
- Add --with-platform-patches-dir configure option.
- Add --with-pmi-libdir configure option for environments that install
PMI libs in a non-default location.
- Various configure-related compatibility updates for newer versions
of libibverbs and OFED.
- Numerous fixes/improvements to orte-dvm. Special thanks to Mark
Santcroos for his help.
- Fix a problem with timer code on ia32 platforms. Thanks to
Paul Hargrove for reporting this and providing a patch.
- Fix a problem with use of a 64 bit atomic counter. Thanks to
Paul Hargrove for reporting.
- Fix a problem with singleton job launching. Thanks to Lisandro
Dalcin for reporting.
- Fix a problem with use of MPI_UNDEFINED with MPI_COMM_SPLIT_TYPE.
Thanks to Lisandro Dalcin for reporting.
- Silence a compiler warning in PSM MTL. Thanks to Adrian Reber for
reporting this.
- Properly detect Intel TrueScale and OmniPath devices in the ACTIVE
state. Thanks to Durga Choudhury for reporting the issue.
- Fix detection and use of Solaris Studio 12.5 (beta) compilers.
Thanks to Paul Hargrove for reporting and debugging.
- Fix various small memory leaks.
- Allow NULL arrays when creating empty MPI datatypes.
- Replace use of alloca with malloc for certain datatype creation
functions. Thanks to Bogdan Sataric for reporting this.
- Fix use of MPI_LB and MPI_UB in creation of of certain MPI datatypes.
Thanks to Gus Correa for helping to fix this.
- Implement a workaround for a GNU Libtool problem. Thanks to Eric
Schnetter for reporting and fixing.
- Improve hcoll library detection in configure. Thanks to David
Shrader and Ake Sandgren for reporting this.
- Miscellaneous minor bug fixes in the hcoll component.
- Miscellaneous minor bug fixes in the ugni component.
- Fix problems with XRC detection in OFED 3.12 and older releases.
Thanks to Paul Hargrove for his analysis of this problem.
- Update (non-standard/experimental) Java MPI interfaces to support
MPI-3.1 functionality.
- Fix an issue with MCA parameters for Java bindings. Thanks to
Takahiro Kawashima and Siegmar Gross for reporting this issue.
- Fix a problem when using persistent requests in the Java bindings.
Thanks to Nate Chambers for reporting.
- Fix problem with Java bindings on OX X 10.11. Thanks to Alexander
Daryin for reporting this issue.
- Fix a performance problem for large messages for Cray XC systems.
Thanks to Jerome Vienne for reporting this.
- Fix an issue with MPI_WIN_LOCK_ALL. Thanks to Thomas Jahns for
reporting.
- Fix an issue with passing a parameter to configure multiple times.
Thanks to QuesarVII for reporting and supplying a fix.
- Add support for ALPS resource allocation system on Cray CLE 5.2 and
later. Thanks to Mark Santcroos.
- Corrections to the HACKING file. Thanks to Maximilien Levesque.
- Fix an issue with user supplied reduction operator functions.
Thanks to Rupert Nash for reporting this.
- Fix an issue with an internal list management function. Thanks to
Adrian Reber for reporting this.
- Fix a problem with MPI-RMA PSCW epochs. Thanks to Berk Hess for
reporting this.
- Fix a problem in neighborhood collectives. Thanks to Lisandro
Dalcin for reporting.
- Fix MPI_IREDUCE_SCATTER_BLOCK for a one-process communicator. Thanks
to Lisandro Dalcin for reporting.
- Add (Open MPI-specific) additional flavors to MPI_COMM_SPLIT_TYPE.
See MPI_Comm_split_type(3) for details. Thanks to Nick Andersen for
supplying this enhancement.
- Improve closing of file descriptors during the job launch phase.
Thanks to Piotr Lesnicki for reporting and providing this
enhancement.
- Fix a problem in MPI_GET_ACCUMULATE and MPI_RGET_ACCUMULATE when
using Portals4. Thanks to Nicolas Chevalier for reporting.
- Use correct include file for lstat prototype in ROMIO. Thanks to
William Throwe for finding and providing a fix.
- Add missing Fortran bindings for MPI_WIN_ALLOCATE. Thanks to Christoph
Niethammer for reporting and fixing.
- Fortran related fixes to handle Intel 2016 compiler. Thanks to
Fabrice Roy for reporting this.
- Fix a Fortran linkage issue. Thanks to Macro Atzeri for finding and
suggesting a fix.
- Fix problem with using BIND(C) for Fortran bindings with logical
parameters. Thanks to Paul Romano for reporting.
- Fix an issue with use of DL-related macros in opal library. Thanks to
Scott Atchley for finding this.
- Fix an issue with parsing mpirun command line options which contain
colons. Thanks to Lev Given for reporting.
- Fix a problem with Open MPI's package configury files. Thanks to
Christoph Junghans for reporting.
- Fix a typo in the MPI_INTERCOMM_MERGE man page. Thanks To Harald
Servat for reporting and correcting.
- Update man pages for non-blocking sends per MPI 3.1 standard.
Thanks to Alexander Pozdneev for reporting.
- Fix problem when compiling against PVFS2. Thanks to Dave Love for
reporting.
- Fix problems with MPI_NEIGHBOR_ALLTOALL{V,W}. Thanks to Willem
Vermin for reporting this issue.
- Fix various compilation problems on Cygwin. Thanks to Marco Atzeri
for supplying these fixes.
- Fix problem with resizing of subarray and darray data types. Thanks
to Keith Bennett and Dan Garmann for reporting.
- Fix a problem with MPI_COMBINER_RESIZED. Thanks to James Ramsey for
the report.
- Fix an hwloc binding issue. Thanks to Ben Menadue for reporting.
- Fix a problem with the shared memory (sm) BTL. Thanks to Peter Wind
for the report.
- Fixes for heterogeneous support. Thanks to Siegmar Gross for reporting.
- Fix a problem with memchecker. Thanks to Clinton Simpson for reporting.
- Fix a problem with MPI_UNWEIGHTED in topology functions. Thanks to
Jun Kudo for reporting.
- Fix problem with a MCA parameter base filesystem types. Thanks to
Siegmar Gross for reporting.
- Fix a problem with some windows info argument types. Thanks to
Alastair McKinstry for reporting.
1.10.7 - 16 May 2017
------
- Fix bug in TCP BTL that impacted performance on 10GbE (and faster)
networks by not adjusting the TCP send/recv buffer sizes and using
system default values
- Add missing MPI_AINT_ADD and MPI_AINT_DIFF function delcarations in
mpif.h
- Fixed time reported by MPI_WTIME; it was previously reported as
dependent upon the CPU frequency.
- Fix platform detection on FreeBSD
- Fix a bug in the handling of MPI_TYPE_CREATE_DARRAY in
MPI_(R)(GET_)ACCUMULATE
- Fix openib memory registration limit calculation
- Add missing MPI_T_PVAR_SESSION_NULL in mpi.h
- Fix "make distcheck" when using external hwloc and/or libevent packages
- Add latest ConnectX-5 vendor part id to OpenIB device params
- Fix race condition in the UCX PML
- Fix signal handling for rsh launcher
- Fix Fortran compilation errors by removing MPI_SIZEOF in the Fortran
interfaces when the compiler does not support it
- Fixes for the pre-ignore-TKR "mpi" Fortran module implementation
(i.e., for older Fortran compilers -- these problems did not exist
in the "mpi" module implementation for modern Fortran compilers):
- Add PMPI_* interfaces
- Fix typo in MPI_FILE_WRITE_AT_ALL_BEGIN interface name
- Fix typo in MPI_FILE_READ_ORDERED_BEGIN interface name
- Fixed the type of MPI_DISPLACEMENT_CURRENT in all Fortran interfaces
to be an INTEGER(KIND=MPI_OFFSET_KIND).
- Fixed typos in MPI_INFO_GET_* man pages. Thanks to Nicolas Joly for
the patch
- Fix typo bugs in wrapper compiler script
1.10.6 - 17 Feb 2017
------
- Fix bug in timer code that caused problems at optimization settings
greater than 2
- OSHMEM: make mmap allocator the default instead of sysv or verbs
- Support MPI_Dims_create with dimension zero
- Update USNIC support
- Prevent 64-bit overflow on timer counter
- Add support for forwarding signals
- Fix bug that caused truncated messages on large sends over TCP BTL
- Fix potential infinite loop when printing a stacktrace
1.10.5 - 19 Dec 2016
------
- Update UCX APIs
- Fix bug in darray that caused MPI/IO failures
- Use a MPI_Get_library_version() like string to tag the debugger DLL.
Thanks to Alastair McKinstry for the report
- Fix multi-threaded race condition in coll/libnbc
- Several fixes to OSHMEM
- Fix bug in UCX support due to uninitialized field
- Fix MPI_Ialltoallv with MPI_IN_PLACE and without MPI param check
- Correctly reset receive request type before init. Thanks Chris Pattison
for the report and test case.
- Fix bug in iallgather[v]
- Fix concurrency issue with MPI_Comm_accept. Thanks to Pieter Noordhuis
for the patch
- Fix ompi_coll_base_{gather,scatter}_intra_binomial
- Fixed an issue with MPI_Type_get_extent returning the wrong extent
for distributed array datatypes.
- Re-enable use of rtdtsc instruction as a monotonic clock source if
the processor has a core-invariant tsc. This is a partial fix for a
performance regression introduced in Open MPI v1.10.3.
1.10.4 - 01 Sept 2016
------
- Fix assembler support for MIPS
- Improve memory handling for temp buffers in collectives
- Fix [all]reduce with non-zero lower bound datatypes
Thanks Hristo Iliev for the report
- Fix non-standard ddt handling. Thanks Yuki Matsumoto for the report
- Various libnbc fixes. Thanks Yuki Matsumoto for the report
- Fix typos in request RMA bindings for Fortran. Thanks to @alazzaro
and @vondele for the assist
- Various bug fixes and enhancements to collective support
- Fix predefined types mapping in hcoll
- Revive the coll/sync component to resolve unexpected message issues
during tight loops across collectives
- Fix typo in wrapper compiler for Fortran static builds
1.10.3 - 15 June 2016
------
- Fix zero-length datatypes. Thanks to Wei-keng Liao for reporting
the issue.
- Minor manpage cleanups
- Implement atomic support in OSHMEM/UCX
- Fix support of MPI_COMBINER_RESIZED. Thanks to James Ramsey
for the report
- Fix computation of #cpus when --use-hwthread-cpus is used
- Add entry points for Allgatherv, iAllgatherv, Reduce, and iReduce
for the HCOLL library
- Fix an HCOLL integration bug that could signal completion of request
while still being worked
- Fix computation of cores when SMT is enabled. Thanks to Ben Menadue
for the report
- Various USNIC fixes
- Create a datafile in the per-proc directory in order to make it
unique per communicator. Thanks to Peter Wind for the report
- Fix zero-size malloc in one-sided pt-to-pt code. Thanks to Lisandro
Dalcin for the report
- Fix MPI_Get_address when passed MPI_BOTTOM to not return an error.
Thanks to Lisandro Dalcin for the report
- Fix MPI_TYPE_SET_ATTR with NULL value. Thanks to Lisandro Dalcin for
the report
- Fix various Fortran08 binding issues
- Fix memchecker no-data case. Thanks to Clinton Stimpson for the report
- Fix CUDA support under OS-X
- Fix various OFI/MTL integration issues
- Add MPI_T man pages
- Fix one-sided pt-to-pt issue by preventing communication from happening
before a target enters a fence, even in the no-precede case
- Fix a bug that disabled Totalview for MPMD use-case
- Correctly support MPI_UNWEIGHTED in topo-graph-neighbors. Thanks to
Jun Kudo for the report
- Fix singleton operations under SLURM when PMI2 is enabled
- Do not use MPI_IN_PLACE in neighborhood collectives for non-blocking
collectives (libnbc). Thanks to Jun Kudo for the report
- Silence autogen deprecation warnings for newer versions of Perl
- Do not return MPI_ERR_PENDING from collectives
- Use type int* for MPI_WIN_DISP_UNIT, MPI_WIN_CREATE_FLAVOR, and MPI_WIN_MODEL.
Thanks to Alastair McKinstry for the report
- Fix register_datarep stub function in IO/OMPIO. Thanks to Eric
Chamberland for the report
- Fix a bus error on MPI_WIN_[POST,START] in the shared memory one-sided component
- Add several missing MPI_WIN_FLAVOR constants to the Fortran support
- Enable connecting processes from different subnets using the openib BTL
- Fix bug in basic/barrier algorithm in OSHMEM
- Correct process binding for the --map-by node case
- Include support for subnet-to-subnet routing over InfiniBand networks
- Fix usnic resource check
- AUTHORS: Fix an errant reference to Subversion IDs
- Fix affinity for MPMD jobs running under LSF
- Fix many Fortran binding bugs
- Fix `MPI_IN_PLACE`-related bugs
- Fix PSM/PSM2 support for singleton operations
- Ensure MPI transports continue to progress during RTE barriers
- Update HWLOC to 1.9.1 end-of-series
- Fix a bug in the Java command line parser when the
-Djava.library.path options was given by the user
- Update the MTL/OFI provider selection behavior
- Add support for clock_gettime on Linux.
- Correctly detect and configure for Solaris Studio 12.5
beta compilers
- Correctly compute #slots when -host is used for MPMD case
- Fix a bug in the hcoll collectives due to an uninitialized field
- Do not set a binding policy when oversubscribing a node
- Fix hang in intercommunicator operations when oversubscribed
- Speed up process termination during MPI_Abort
- Disable backtrace support by default in the PSM/PSM2 libraries to
prevent unintentional conflicting behavior.
1.10.2: 26 Jan 2016
-------------------
**********************************************************************
* OSHMEM is now 1.2 compliant
**********************************************************************
- Fix NBC_Copy for legitimate zero-size messages
- Fix multiple bugs in OSHMEM
- Correctly handle mpirun --host <user>@<ip-address>
- Centralize two MCA params to avoid duplication between OMPI and
OSHMEM layers: opal_abort_delay and opal_abort_print_stack
- Add support for Fujitsu compilers
- Add UCX support for OMPI and OSHMEM
- Correctly handle oversubscription when not given directives
to permit it. Thanks to @ammore1 for reporting it
- Fix rpm spec file to not include the /usr directory
- Add Intel HFI1 default parameters for the openib BTL
- Resolve symbol conflicts in the PSM2 library
- Add ability to empty the rgpusm cache when full if requested
- Fix another libtool bug when -L requires a space between it
and the path. Thanks to Eric Schnetter for the patch.
- Add support for OSHMEM v1.2 APIs
- Improve efficiency of oshmem_preconnect_all algorithm
- Fix bug in buffered sends support
- Fix double free in edge case of mpirun. Thanks to @jsharpe for
the patch
- Multiple one-sided support fixes
- Fix integer overflow in the tuned "reduce" collective when
using buffers larger than INT_MAX in size
- Fix parse of user environment variables in mpirun. Thanks to
Stefano Garzarella for the patch
- Performance improvements in PSM2 support
- Fix NBS iBarrier for inter-communicators
- Fix bug in vader BTL during finalize
- Improved configure support for Fortran compilers
- Fix rank_file mapper to support default --slot-set. Thanks
to Matt Thompson for reporting it
- Update MPI_Testsome man page. Thanks to Eric Schnetter for
the suggestion
- Fix missing resize of the returned type for subarray and
darray types. Thanks to Keith Bennett and Dan Garmann for
reporting it
- Fix Java support on OSX 10.11. Thanks to Alexander Daryin
for reporting the problem
- Fix some compilation issues on Solaris 11.2. Thanks to
Paul Hargrove for his continued help in such areas
1.10.1: 4 Nov 2015
------------------
- Workaround an optimization problem with gcc compilers >= 4.9.2 that
causes problems with memory registration, and forced
mpi_leave_pinned to default to 0 (i.e., off). Thanks to @oere for
the fix.
- Fix use of MPI_LB and MPI_UB in subarray and darray datatypes.
Thanks to Gus Correa and Dimitar Pashov for pointing out the issue.
- Minor updates to mpi_show_mpi_alloc_mem_leaks and
ompi_debug_show_handle_leaks functionality.
- Fix segv when invoking non-blocking reductions with a user-defined
operation. Thanks to Rupert Nash and Georg Geiser for identifying
the issue.
- No longer probe for PCI topology on Solaris (unless running as root).
- Fix for Intel Parallel Studio 2016 ifort partial support of the
!GCC$ pragma. Thanks to Fabrice Roy for reporting the problem.
- Bunches of Coverity / static analysis fixes.
- Fixed ROMIO to look for lstat in <sys/stat.h>. Thanks to William
Throwe for submitting the patch both upstream and to Open MPI.
- Fixed minor memory leak when attempting to open plugins.
- Fixed type in MPI_IBARRIER C prototype. Thanks to Harald Servat for
reporting the issue.
- Add missing man pages for MPI_WIN_CREATE_DYNAMIC, MPI_WIN_ATTACH,
MPI_WIN_DETACH, MPI_WIN_ALLOCATE, MPI_WIN_ALLOCATE_SHARED.
- When mpirun-launching new applications, only close file descriptors
that are actually open (resulting in a faster launch in some
environments).
- Fix "test ==" issues in Open MPI's configure script. Thank to Kevin
Buckley for pointing out the issue.
- Fix performance issue in usnic BTL: ensure progress thread is
throttled back to not aggressively steal CPU cycles.
- Fix cache line size detection on POWER architectures.
- Add missing #include in a few places. Thanks to Orion Poplawski for
supplying the patch.
- When OpenSHMEM building is disabled, no longer install its header
files, help files, or man pages. Add man pages for oshrun, oshcc,
and oshfort.
- Fix mpi_f08 implementations of MPI_COMM_SET_INFO, and profiling
versions of MPI_BUFFER_DETACH, MPI_WIN_ALLOCATE,
MPI_WIN_ALLOCATE_SHARED, MPI_WTICK, and MPI_WTIME.
- Add orte_rmaps_dist_device MCA param, allowing users to map near a
specific device.
- Various updates/fixes to the openib BTL.
- Add missing defaults for the Mellanox ConnectX 3 card to the openib BTL.
- Minor bug fixes in the OFI MTL.
- Various updates to Mellanox's MXM, hcoll, and FCA components.
- Add OpenSHMEM man pages. Thanks to Tony Curtis for sharing the man
pages files from openshmem.org.
- Add missing "const" attributes to MPI_COMPARE_AND_SWAP,
MPI_FETCH_AND_OP, MPI_RACCUMULATE, and MPI_WIN_DETACH prototypes.
Thanks to Michael Knobloch and Takahiro Kawashima for bringing this
to our attention.
- Fix linking issues on some platforms (e.g., SLES 12).
- Fix hang on some corner cases when MPI applications abort.
- Add missing options to mpirun man page. Thanks to Daniel Letai
for bringing this to our attention.
- Add new --with-platform-patches-dir configure option
- Adjust relative selection priorities to ensure that MTL
support is favored over BTL support when both are available
- Use CUDA IPC for all sized messages for performance
1.10.0: 25 Aug 2015
-------------------
** NOTE: The v1.10.0 release marks the transition to Open MPI's new
** version numbering scheme. The v1.10.x release series is based on
** the v1.8.x series, but with a few new features. v2.x will be the
** next series after the v1.10.x series, and complete the transition
** to the new version numbering scheme. See README for more details
** on the new versioning scheme.
**
** NOTE: In accordance with OMPI version numbering, the v1.10 is *not*
** API compatible with the v1.8 release series.
- Added libfabric support (see README for more details):
- usNIC BTL updated to use libfabric.
- Added OFI MTL (usable with PSM in libfabric v1.1.0).
- Added Intel Omni-Path support via new PSM2 MTL.
- Added "yalla" PML for faster MXM support.
- Removed support for MX
- Added persistent distributed virtual machine (pDVM) support for fast
workflow executions.
- Fixed typo in GCC inline assembly introduced in Open MPI v1.8.8.
Thanks to Paul Hargrove for pointing out the issue.
- Add missing man pages for MPI_Win_get|set_info(3).
- Ensure that session directories are cleaned up at the end of a run.
- Fixed linking issues on some OSs where symbols of dependent
libraries are not automatically publicly available.
- Improve hcoll and fca configury library detection. Thanks to David
Shrader for helping track down the issue.
- Removed the LAMA mapper (for use in setting affinity). Its
functionality has been largely superseded by other mpirun CLI
options.
- CUDA: Made the asynchronous copy mode be the default.
- Fix a malloc(0) warning in MPI_IREDUCE_SCATTER_BLOCK. Thanks to
Lisandro Dalcin for reporting the issue.
- Fix typo in MPI_Scatter(3) man page. Thanks to Akshay Venkatesh for
noticing the mistake.
- Add rudimentary protection from TCP port scanners.
- Fix typo in Open MPI error handling. Thanks to Åke Sandgren for
pointing out the error.
- Increased the performance of the CM PML (i.e., the Portals, PSM,
PSM2, MXM, and OFI transports).
- Restored visibility of blocking send requests in message queue
debuggers (e.g., TotalView, DDT).
- Fixed obscure IPv6-related bug in the TCP BTL.
- Add support for the "no_locks" MPI_Info key for one-sided
functionality.
- Fixed ibv_fork support for verbs-based networks.
- Fixed a variety of small bugs in OpenSHMEM.
- Fixed MXM configure with additional CPPFLAGS and LDFLAGS. Thanks to
David Shrader for the patch.
- Fixed incorrect memalign threshhold in the openib BTL. Thanks to
Xavier Besseron for pointing out the issue.
1.8.8: 5 Aug 2015
-----------------
- Fix a segfault in MPI_FINALIZE with the PSM MTL.
- Fix mpi_f08 sentinels (e.g., MPI_STATUS_IGNORE) handling.
- Set some additional MXM default values for OSHMEM.
- Fix an invalid memory access in MPI_MRECV and MPI_IMRECV.
- Include two fixes that were mistakenly left out of the official
v1.8.7 tarball:
- Fixed MPI_WIN_POST and MPI_WIN_START for zero-size messages
- Protect the OOB TCP ports from segfaulting when accessed by port
scanners
1.8.7: 15 Jul 2015
------------------
** NOTE: v1.8.7 technically breaks ABI with prior versions
** in the 1.8 series because it repairs two incorrect API
** signatures. However, users will only need to recompile
** if they were using those functions - which they couldn't
** have been, because the signatures were wrong :-)
- Plugged a memory leak that impacted blocking sends
- Fixed incorrect declaration for MPI_T_pvar_get_index and added
missing return code MPI_T_INVALID_NAME.
- Fixed an uninitialized variable in PMI2 support
- Added new vendor part id for Mellanox ConnectX4-LX
- Fixed NBC_Copy for legitimate zero-size messages
- Fixed MPI_Win_post and MPI_Win_start for zero-size messages
- Protect the OOB ports from segfaulting when accessed by port scanners
- Fixed several Fortran typos
- Fixed configure detection of XRC support
- Fixed support for highly heterogeneous systems to avoid
memory corruption when printing out the bindings
1.8.6: 17 Jun 2015
------------------
- Fixed memory leak on Mac OS-X exposed by TCP keepalive
- Fixed keepalive support to ensure that daemon/node failure
results in complete job cleanup
- Update Java binding support
- Fixed MPI_THREAD_MULTIPLE bug in vader shared memory BTL
- Fixed issue during shutdown when CUDA initialization wasn't complete
- Fixed orted environment when no prefix given
- Fixed trivial typo in MPI_Neighbor_allgather manpage
- Fixed tree-spawn support for sh and ksh shells
- Several data type fixes
- Fixed IPv6 support bug
- Cleaned up an unlikely build issue
- Fixed PMI2 process map parsing for cyclic mappings
- Fixed memalign threshold in openib BTL
- Fixed debugger access to message queues for blocking send/recv
1.8.5: 5 May 2015
-----------------
- Fixed configure problems in some cases when using an external hwloc
installation. Thanks to Erick Schnetter for reporting the error and
helping track down the source of the problem.
- Fixed linker error on OS X when using the clang compiler. Thanks to
Erick Schnetter for reporting the error and helping track down the
source of the problem.
- Fixed MPI_THREAD_MULTIPLE deadlock error in the vader BTL. Thanks
to Thomas Klimpel for reporting the issue.
- Fixed several Valgrind warnings. Thanks for Lisandro Dalcin for
contributing a patch fixing some one-sided code paths.
- Fixed version compatibility test in OOB that broke ABI within the
1.8 series. NOTE: this will not resolve the problem between pre-1.8.5
versions, but will fix it going forward.
- Fix some issues related to running on Intel Xeon Phi coprocessors.
- Opportunistically switch away from using GNU Libtool's libltdl
library when possible (by default).
- Fix some VampirTrace errors. Thanks to Paul Hargrove for reporting
the issues.
- Correct default binding patterns when --use-hwthread-cpus was
specified and nprocs <= 2.
- Fix warnings about -finline-functions when compiling with clang.
- Updated the embedded hwloc with several bug fixes, including the
"duplicate Lhwloc1 symbol" that multiple users reported on some
platforms.
- Do not error when mpirun is invoked with with default bindings
(i.e., no binding was specified), and one or more nodes do not
support bindings. Thanks to Annu Desari for pointing out the
problem.
- Let root invoke "mpirun --version" to check the version without
printing the "Don't run as root!" warnings. Thanks to Robert McLay
for the suggestion.
- Fixed several bugs in OpenSHMEM support.
- Extended vader shared memory support to 32-bit architectures.
- Fix handling of very large datatypes. Thanks to Bogdan Sataric for
the bug report.
- Fixed a bug in handling subarray MPI datatypes, and a bug when using
MPI_LB and MPI_UB. Thanks to Gus Correa for pointing out the issue.
- Restore user-settable bandwidth and latency PML MCA variables.
- Multiple bug fixes for cleanup during MPI_FINALIZE in unusual
situations.
- Added support for TCP keepalive signals to ensure timely termination
when sockets between daemons cannot be created (e.g., due to a
firewall).
- Added MCA parameter to allow full use of a SLURM allocation when
started from a tool (supports LLNL debugger).
- Fixed several bugs in the configure logic for PMI and hwloc.
- Fixed incorrect interface index in TCP communications setup. Thanks
to Mark Kettenis for spotting the problem and providing a patch.
- Fixed MPI_IREDUCE_SCATTER with single-process communicators when
MPI_IN_PLACE was not used.
- Added XRC support for OFED v3.12 and higher.
- Various updates and bug fixes to the Mellanox hcoll collective
support.
- Fix problems with Fortran compilers that did not support
REAL*16/COMPLEX*32 types. Thanks to Orion Poplawski for identifying
the issue.
- Fixed problem with rpath/runpath support in pkg-config files.
Thanks to Christoph Junghans for notifying us of the issue.
- Man page fixes:
- Removed erroneous "color" discussion from MPI_COMM_SPLIT_TYPE.
Thanks to Erick Schnetter for spotting the outdated text.
- Fixed prototypes for MPI_IBARRIER. Thanks to Maximilian for
finding the issue.
- Updated docs about buffer usage in non-blocking communications.
Thanks to Alexander Pozdneev for citing the outdated text.
- Added documentation about the 'ompi_unique' MPI_Info key with
MPI_PUBLISH_NAME.
- Fixed typo in MPI_INTERCOMM_MERGE. Thanks to Harald Servat for
noticing and sending a patch.
- Updated configure paths in HACKING. Thanks to Maximilien Levesque
for the fix.
- Fixed Fortran typo in MPI_WIN_LOCK_ALL. Thanks to Thomas Jahns
for pointing out the issue.
- Fixed a number of MPI one-sided bugs.
- Fixed MPI_COMM_SPAWN when invoked from a singleton job.
- Fixed a number of minor issues with CUDA support, including
registering of shared memory and supporting reduction support for
GPU buffers.
- Improved support for building OMPI on Cray platforms.
- Fixed performance regression introduced by the inadvertent default
enabling of MPI_THREAD_MULTIPLE support.
1.8.4: 19 Dec 2014
------------------
- Fix MPI_SIZEOF; now available in mpif.h for modern Fortran compilers
(see README for more details). Also fixed various compiler/linker
errors.
- Fixed inadvertant Fortran ABI break between v1.8.1 and v1.8.2 in the
mpi interface module when compiled with gfortran >= v4.9.
- Fix various MPI_THREAD_MULTIPLE issues in the TCP BTL.
- mpirun no longer requires the --hetero-nodes switch; it will
automatically detect when running in heterogeneous scenarios.
- Update LSF support, to include revamped affinity functionality.
- Update embedded hwloc to v1.9.1.
- Fixed max registerable memory computation in the openib BTL.
- Updated error message when debuggers are unable to find various
symbols/types to be more clear. Thanks to Dave Love for raising the
issue.
- Added proper support for LSF and PBS/Torque libraries in static builds.
- Rankfiles now support physical processor IDs.
- Fixed potential hang in MPI_ABORT.
- Fixed problems with the PSM MTL and "re-connect" scenarios, such as
MPI_INTERCOMM_CREATE.
- Fix MPI_IREDUCE_SCATTER with a single process.
- Fix (rare) race condition in stdout/stderr funneling to mpirun where
some trailing output could get lost when a process terminated.
- Removed inadvertent change that set --enable-mpi-thread-multiple "on"
by default, thus impacting performance for non-threaded apps.
- Significantly reduced startup time by optimizing internal hash table
implementation.
- Fixed OS X linking with the Fortran mpi module when used with
gfortran >= 4.9. Thanks to Github user yafshar for raising the
issue.
- Fixed memory leak on Cygwin platforms. Thanks for Marco Atzeri for
reporting the issue.
- Fixed seg fault in neighborhood collectives when the degree of the
topology is higher than the communicator size. Thanks to Lisandro
Dalcin for reporting the issue.
- Fixed segfault in neighborhood collectives under certain use-cases.
- Fixed various issues regarding Solaris support. Thanks to Siegmar
Gross for patiently identifying all the issues.
- Fixed PMI configure tests for certain Slurm installation patterns.
- Fixed param registration issue in Java bindings. Thanks to Takahiro
Kawashima and Siegmar Gross for identifying the issue.
- Several man page fixes.
- Silence several warnings and close some memory leaks (more remain,
but it's better than it was).
- Re-enabled the use of CMA and knem in the shared memory BTL.
- Updated mpirun manpage to correctly explain new map/rank/binding options.
- Fixed MPI_IALLGATHER problem with intercommunicators. Thanks for
Takahiro Kawashima for the patch.
- Numerous updates and performance improvements to OpenSHMEM.
- Turned off message coalescing in the openib BTL until a proper fix
for that capability can be provided (tentatively expected for 1.8.5)
- Fix a bug in iof output that dates back to the dinosaurs which would
output extra bytes if the system was very heavily loaded
- Fix a bug where specifying mca_component_show_load_errors=0 could
cause ompi_info to segfault
- Updated valgrind suppression file
1.8.3: 26 Sep 2014
------------------
- Fixed application abort bug to ensure that MPI_Abort exits appropriately
and returns the provided exit status
- Fixed some alignment (not all) issues identified by Clang
- Allow CUDA-aware to work with nonblocking collectives. Forces packing to
happen when using GPU buffers.
- Fixed configure test issue with Intel 2015 Fortran compiler
- Fixed some PGI-related errors
- Provide better help message when encountering a firewall
- Fixed MCA parameter quoting to protect multi-word params and params
that contain special characters
- Improved the bind-to help message to clarify the defaults
- Add new MPI-3.1 tools interface
- Several performance optimizations and memory leak cleanups
- Turn off the coll/ml plugin unless specifically requested as it