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YAXT Version 0.9.2 available

Added by Thomas Jahns 6 months ago

The 0.9.2 release includes the following new features:
  • The neighbor alltoall exchanger is now expected to fully work on MPI's where MPI 3.x features are available, test it by setting environment variable XT_CONFIG_DEFAULT_EXCHANGE_METHOD to neigh_alltoall
It also contains new work-arounds for the following compilers:
  • gcc/gfortran 10 and 11, especially when using -flto
  • Intel Fortran 19.1 Update 2
  • PGI/NVHPC compilers 20 and 21

Also a work-around for bugs in mpich 3.4.x releases is included, but the recommended fix is to apply the patches in source:config/checkpatch

Apart from that the release contains multiple measures to save memory and MPI resources.

YAXT Version 0.9.1 available

Added by Thomas Jahns 12 months ago

This release
  • reduces libtool compatibility headaches with the new nvfortran compiler,
  • fixes a small memory leak when more than 8 redists are used to form a collection,
  • fixes an incorrect computation of position extents when an xmap is constructed manually,
  • hides internal library symbols,
  • fixes the passing of zero size arrays in the Fortran interface,
  • add minor improvements to the cfortran.h header.

Also see commit log at commit:f2eb603483f3b8041.

YAXT Version 0.9.0 available

Added by Thomas Jahns almost 2 years ago

This release bring the following new features:
  • configurable message pumping mechanism, programmers can select a so-called exchanger for new redist constructors with an additional argument or users/administrators by setting the XT_CONFIG_DEFAULT_EXCHANGE_METHOD environment variable
  • by setting FC=no at configure time, it is possible to perform a C-language only build

The release also includes various minor improvements to the code, the build and test infrastructure, and reliability of build configuration.

Also see commit log at commit:4334d020c206da33.

YAXT Version 0.8.1 available

Added by Thomas Jahns about 2 years ago

This release is a minor update to 0.8.0 that
  • fixes some minor build system issues,
  • defaults to mpicc/mpifort and other usual wrappers for CC/FC instead of gcc/gfortran,
  • adds inquiry functions xt_redist_get_num_send_msg and xt_redist_get_num_recv_msg,
  • conditionalizes building of performance test programs,
  • detects another failure in datatype handling in Intel MPI and MVAPICH at configure time,
  • adds a constructor for xmaps (xt_xmap_intersection_pos_new) when the transferred positions are already known, and
  • improves support for pgfortran 14.

Also see commit log at commit:c96c095bb3c6fa6.

YAXT Version 0.8.0 available

Added by Thomas Jahns over 2 years ago

This release contains several new/improved features:
  • potential integer overflow in stripe overlap computation was fully eliminated
  • interfaces (xt_xmap_reorder, xt_xmap_update_positions, xt_xmap_spread) to tune/extend the xmap message element sequence for improved memory access patterns
  • make the build much cleaner
  • improved support for recent PGI compiler releases
  • much improved support for various Cray compiler versions
  • tons of smaller tweaks/improvements/fixes, see revision log commit:652f8312be016820 for details

YAXT Version 0.6.2 available

Added by Thomas Jahns almost 3 years ago

This is a bug-fix release that only
  • contains a work-around for automake prior to 1.16 spurious file creation (no breakage)
  • improves on build-workarounds for NAG Fortran
  • improves libtool interaction with PGI compilers when invoked through a wrapper like mpicc
  • adds a workaround for a Cray CCE code generation bug, where the compiler makes incorrect assumptions about pointer alignment.

YAXT Version 0.6.1 available

Added by Thomas Jahns about 3 years ago

This is a bug-fix release that only
  • adds a file missing from the distribution archive (but is only needed when time-stamps get changed)
  • fixes a problem when ifort or icc was used with the -diag-disable option having an argument as next command-line argument instead of separated by an equals sign
  • fixes needed if autoreconf is performed with automake 1.16

YAXT Version 0.6.0 available

Added by Thomas Jahns about 4 years ago

The new YAXT release includes
  • support for asynchronous exchanges (like MPI_Isend) and
  • fixes for MPI implementations where MPI_Pack_size returns an actual upper bound and not the exact amount that MPI_Pack advances position by
  • document the consequences segmented memory architectures might have
(1-10/21)

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