Changes since 1.7 from NEWS file:
Version 1.7.1
-------------
* Fix a failed assertion in the distance grouping code when loading a XML
file that already contains some groups.
Thanks to Laercio Lima Pilla for reporting the problem.
* Remove unexpected Group objects when loading XML topologies with I/O
objects and NUMA distances.
Thanks to Elena Elkina for reporting the problem and testing patches.
* Fix PCI link speed discovery when using libpciaccess.
* Fix invalid libpciaccess virtual function device/vendor IDs when using
SR-IOV PCI devices on Linux.
* Fix GL component build with old NVCtrl releases.
Thanks to Jirka Hladky for reporting the problem.
* Fix embedding breakage caused by libltdl.
Thanks to Pavan Balaji for reporting the problem.
* Always use the system-wide libltdl instead of shipping one inside hwloc.
* Document issues when enabling plugins while embedding hwloc in another
project, in the documentation section Embedding hwloc in Other Software.
* Add a FAQ entry "How to get useful topology information on NetBSD?"
in the documentation.
* Somes fixes in the renaming code for embedding.
* Miscellaneous minor build fixes.
billiard is a fork of the Python 2.7 multiprocessing package. The
multiprocessing package itself is a renamed and updated version of R Oudkerk's
pyprocessing package. This standalone variant is intended to be compatible with
Python 2.4 and 2.5, and will draw it's fixes/improvements from python-trunk.
* Also it is a fork of the multiprocessin backport package by Christian Heims;
* It includes the no-execv patch contributed by R. Oudkerk;
* And the Pool improvements previously located in Celery;
to address issues with NetBSD-6(and earlier)'s fontconfig not being
new enough for pango.
While doing that, also bump freetype2 dependency to current pkgsrc
version.
Suggested by tron in PR 47882
a) refer 'perl' in their Makefile, or
b) have a directory name of p5-*, or
c) have any dependency on any p5-* package
Like last time, where this caused no complaints.
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. Please use this release instead of 3.0.3.
A new stable release of MPICH, 3.0.3, is now available for download. This release adds several performance features for MPI-RMA and fixes several bugs present in 3.0.2. Please use this release instead of 3.0.2.
-------------
* New operating system backends
+ Add BlueGene/Q compute node kernel (CNK) support. See the FAQ in the
documentation for details. Thanks to Jeff Hammond, Christopher Samuel
and Erik Schnetter for their help.
+ Add NetBSD support, thanks to Aleksej Saushev.
* New I/O device discovery
+ Add co-processor OS devices such as "mic0" for Intel Xeon Phi (MIC)
on Linux. Thanks to Jerome Vienne for helping.
+ Add co-processor OS devices such as "cuda0" for NVIDIA CUDA-capable GPUs.
+ Add co-processor OS devices such as "opencl0d0" for OpenCL GPU devices
on the AMD OpenCL implementation.
+ Add GPU OS devices such as ":0.0" for NVIDIA X11 displays.
+ Add GPU OS devices such as "nvml0" for NVIDIA GPUs.
Thanks to Marwan Abdellah and Stefan Eilemann for helping.
These new OS devices have some string info attributes such as CoProcType,
GPUModel, etc. to better identify them.
See the I/O Devices and Attributes documentation sections for details.
* New components
+ Add the "opencl", "cuda", "nvml" and "gl" components for I/O device
discovery.
+ "nvml" also improves the discovery of NVIDIA GPU PCIe link speed.
All of these new components may be built as plugins. They may also be
disabled entirely by passing --disable-opencl/cuda/nvml/gl to configure.
See the I/O Devices, Components and Plugins, and FAQ documentation
sections for details.
* API
+ Add hwloc_topology_get_flags().
+ Add hwloc/plugins.h for building external plugins.
See the Adding new discovery components and plugins section.
* Interoperability
+ Add hwloc/opencl.h, hwloc/nvml.h, hwloc/gl.h and hwloc/intel-mic.h
to retrieve the locality of OS devices that correspond to AMD OpenCL
GPU devices or indexes, to NVML devices or indexes, to NVIDIA X11
displays, or to Intel Xeon Phi (MIC) device indexes.
+ Add new helpers in hwloc/cuda.h and hwloc/cudart.h to convert
between CUDA devices or indexes and hwloc OS devices.
+ Add hwloc_ibv_get_device_osdev() and clarify the requirements
of the OpenFabrics Verbs helpers in hwloc/openfabrics-verbs.h.
* Tools
+ hwloc-info is not only a synonym of lstopo -s anymore, it also
dumps information about objects given on the command-line.
* Documentation
+ Add a section "Existing components and plugins".
+ Add a list of common OS devices in section "Software devices".
+ Add a new FAQ entry "Why is lstopo slow?" about lstopo slowness
issues because of GPUs.
+ Clarify the documentation of inline helpers in hwloc/myriexpress.h
and hwloc/openfabrics-verbs.h.
* Misc
+ Improve cache detection on AIX.
+ The HWLOC_COMPONENTS variable now excludes the components whose
names are prefixed with '-'.
+ lstopo --ignore PU now works when displaying the topology in
graphical and textual mode (not when exporting to XML).
+ The `libpci' component is now called `pci' but the old name is still
accepted in the HWLOC_COMPONENTS variable for backward compatibility.
File too long (should be no more than 24 lines).
Line too long (should be no more than 80 characters).
Trailing empty lines.
Trailing white-space.
Trucated the long files as best as possible while preserving the most info
contained in them.
===============================================================================
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?action=follow_copy&rev=HEAD&stop_rev=10344&mode=follow_copy
===============================================================================
Changes in 1.5
===============================================================================
# OVERALL: Nemesis now supports an "--enable-yield=..." configure
option for better performance/behavior when oversubscribing
processes to cores. Some form of this option is enabled by default
on Linux, Darwin, and systems that support sched_yield().
# OVERALL: Added support for Intel Many Integrated Core (MIC)
architecture: shared memory, TCP/IP, and SCIF based communication.
# OVERALL: Added support for IBM BG/Q architecture. Thanks to IBM
for the contribution.
# MPI-3: const support has been added to mpi.h, although it is
disabled by default. It can be enabled on a per-translation unit
basis with "#define MPICH2_CONST const".
# MPI-3: Added support for MPIX_Type_create_hindexed_block.
# MPI-3: The new MPI-3 nonblocking collective functions are now
available as "MPIX_" functions (e.g., "MPIX_Ibcast").
# MPI-3: The new MPI-3 neighborhood collective routines are now available as
"MPIX_" functions (e.g., "MPIX_Neighbor_allgather").
# MPI-3: The new MPI-3 MPI_Comm_split_type function is now available
as an "MPIX_" function.
# MPI-3: The new MPI-3 tools interface is now available as "MPIX_T_"
functions. This is a beta implementation right now with several
limitations, including no support for multithreading. Several
performance variables related to CH3's message matching are exposed
through this interface.
# MPI-3: The new MPI-3 matched probe functionality is supported via
the new routines MPIX_Mprobe, MPIX_Improbe, MPIX_Mrecv, and
MPIX_Imrecv.
# MPI-3: The new MPI-3 nonblocking communicator duplication routine,
MPIX_Comm_idup, is now supported. It will only work for
single-threaded programs at this time.
# MPI-3: MPIX_Comm_reenable_anysource support
# MPI-3: Native MPIX_Comm_create_group support (updated version of
the prior MPIX_Group_comm_create routine).
# MPI-3: MPI_Intercomm_create's internal communication no longer interferes
with point-to-point communication, even if point-to-point operations on the
parent communicator use the same tag or MPI_ANY_TAG.
# MPI-3: Eliminated the possibility of interference between
MPI_Intercomm_create and point-to-point messaging operations.
# Build system: Completely revamped build system to rely fully on
autotools. Parallel builds ("make -j8" and similar) are now supported.
# Build system: rename "./maint/updatefiles" --> "./autogen.sh" and
"configure.in" --> "configure.ac"
# JUMPSHOT: Improvements to Jumpshot to handle thousands of
timelines, including performance improvements to slog2 in such
cases.
# JUMPSHOT: Added navigation support to locate chosen drawable's ends
when viewport has been scrolled far from the drawable.
# PM/PMI: Added support for memory binding policies.
# PM/PMI: Various improvements to the process binding support in
Hydra. Several new pre-defined binding options are provided.
# PM/PMI: Upgraded to hwloc-1.5
# PM/PMI: Several improvements to PBS support to natively use the PBS
launcher.
# Several other minor bug fixes, memory leak fixes, and code cleanup.
A full list of changes is available using:
svn log -r8478:HEAD https://svn.mcs.anl.gov/repos/mpi/mpich2/tags/release/mpich2-1.5
... or at the following link:
https://trac.mcs.anl.gov/projects/mpich2/log/mpich2/tags/release/mpich2-1.5?action=follow_copy&rev=HEAD&stop_rev=8478&mode=follow_copy
Inter-process locking may be broken on NetBSD under some conditions.
(This didn't get worse since previous package.)
Field tests (benchmarks/skampi) don't reveal that the relevant
code path is invoked.
Major Changes in OpenPA v1.0.4
* native ARM (v7 and higher) support
* numerous memory barrier placement improvements in queue and test code
* x86 memory barrier improvements, including for Intel MIC
* numerous build system improvements
Major Changes in OpenPA v1.0.3
* Libtool shared library support for OPA, avoiding shared/static mixed
linking problems on some platforms.
* The build system should now work more portably with broken/exotic shells.
* pkg-config support
* Emulated atomics can now be detected by the presence of an OPA_EXPLICIT_EMULATION
#define in opa_config.h.
* PPC types are now correctly aligned to 8 bytes instead of 16 bytes.
* many more tests for "make check", fixed missing memory barriers in one test
paexec:
- fixed: NULL dereference when the first line given on input is
empty. Thanks to Sergey Revyako for bug report!
- fixed: entire command passed tp ssh-like transport should be
shquoted. In particular this fixes -x that didn't work with -t.
Thanks to Sergey Revyako for bug report!
- 'paexec -g' accepts empty strings as tasks.
- More regression tests were added
paexec_reorder.1:
- Mistype fix
Here is a list of changes in v1.6.4 as compared to v1.6.3:
- Fix Cygwin shared memory and debugger plugin support. Thanks to
Marco Atzeri for reporting the issue and providing initial patches.
- Fix to obtaining the correct available nodes when a rankfile is
providing the allocation. Thanks to Siegmar Gross for reporting the
problem.
- Fix process binding issue on Solaris. Thanks to Siegmar Gross for
reporting the problem.
- Updates for MXM 2.0.
- Major VT update to 5.14.2.3.
- Fixed F77 constants for Cygwin/Cmake build.
- Fix a linker error when configuring --without-hwloc.
- Automatically provide compiler flags that compile properly on some
types of ARM systems.
- Fix slot_list behavior when multiple sockets are specified. Thanks
to Siegmar Gross for reporting the problem.
- Fixed memory leak in one-sided operations. Thanks to Victor
Vysotskiy for letting us know about this one.
- Added performance improvements to the OpenIB (OpenFabrics) BTL.
- Improved error message when process affinity fails.
- Fixed MPI_MINLOC on man pages for MPI_REDUCE(_LOCAL). Thanks to Jed
Brown for noticing the problem and supplying a fix.
- Made malloc hooks more friendly to IO interprosers. Thanks to the
bug report and suggested fix from Darshan maintainer Phil Carns.
- Restored ability to direct launch under SLURM without PMI support.
- Fixed MPI datatype issues on OpenBSD.
- Major VT update to 5.14.2.3.
- Support FCA v3.0+.
- Fixed header file problems on OpenBSD.
- Fixed issue with MPI_TYPE_CREATE_F90_REAL.
- Fix an issue with using external libltdl installations. Thanks to
opolawski for identifying the problem.
- Fixed MPI_IN_PLACE case for MPI_ALLGATHER for FCA.
- Allow SLURM PMI support to look in lib64 directories. Thanks to
Guillaume Papaure for the patch.
- Restore "use mpi" ABI compatibility with the rest of the 1.5/1.6
series (except for v1.6.3, where it was accidentally broken).
- Fix a very old error in opal_path_access(). Thanks to Marco Atzeri
for chasing it down.
Version 1.6.3 is a minor bugfix release.
All users are encouraged to upgrade to v1.6.3 when possible.
Note that v1.6.3 is ABI compatible with the entire v1.5.x and
v1.6.x series, but is not ABI compatible with the v1.4.x series.
See http://www.open-mpi.org/software/ompi/versions/ for a
description of Open MPI's release methodology.
Here is a list of changes in v1.6.3 as compared to v1.6.2:
- Fix mpirun --launch-agent behavior when a prefix is specified.
Thanks to Reuti for identifying the issue.
- Fixed memchecker configury.
- Brought over some compiler warning squashes from the development trunk.
- Fix spawning from a singleton to multiple hosts when the "add-host"
MPI_Info key is used. Thanks to Brian Budge for pointing out the
problem.
- Add Mellanox ConnextIB IDs and max inline value.
- Fix rankfile when no -np is given.
- FreeBSD detection improvement. Thanks to Brooks Davis for the
patch.
- Removed TCP warnings on Windows.
- Improved collective algorithm selection for very large messages.
- Fix PSM MTL affinity settings.
- Fix issue with MPI_OP_COMMUTATIVE in the mpif.h bindings. Thanks to
Ake Sandgren for providing a patch to fix the issue.
- Fix issue with MPI_SIZEOF when using CHARACTER and LOGICAL types in
the mpi module. Thanks to Ake Sandgren for providing a patch to fix
the issue.
Don't build VampirTrace anymore, it will be introduced as separate package.
Changes in v1.6.2 as compared to v1.6.1:
- Fix issue with MX MTL. Thanks to Doug Eadline for raising the issue.
- Fix singleton MPI_COMM_SPAWN when the result job spans multiple nodes.
- Fix MXM hang, and update for latest version of MXM.
- Update to support Mellanox FCA 2.5.
- Fix startup hang for large jobs.
- Ensure MPI_TESTANY / MPI_WAITANY properly set the empty status when
count==0.
- Fix MPI_CART_SUB behavior of not copying periods to the new
communicator properly. Thanks to John Craske for the bug report.
- Add btl_openib_abort_not_enough_reg_mem MCA parameter to cause Open
MPI to abort MPI jobs if there is not enough registered memory
available on the system (vs. just printing a warning). Thanks to
Brock Palen for raising the issue.
- Minor fix to Fortran MPI_INFO_GET: only copy a value back to the
user's buffer if the flag is .TRUE.
- Fix VampirTrace compilation issue with the PGI compiler suite.
