This is mostly a bug-fix release but also includes
- the option to change the RMA synchronization method of distributed multi-arrays,
- fixes to enable builds with g95,
- Kahan summation is right out-of-the-box on more systems (i.e. one less source of twiddling compiler flags).
The following improvements have been added to YAXT:
- Improved g95 support.
- A memory free bug when concatenating empty redists.
- A minor bug fix for stripe overlap computation when stripe starts are far apart and stride is large.
- New constructor xt_redist_repeat_asym_new allows for different displacements in source and destination arrays.
- Various minor fixes to tests.
The following improvements have been made to YAXT:
- The C part is now available as a separate library so that the differences in linking between Fortran and C can properly be accounted for.
- As a consequence of the above, friendlier generic interfaces are available for Fortran and mpif.h is no longer needed for building YAXT.
- Intercommunicators are supported for constructing Xmaps (destination indices can only be satisified from sources in the remote group) for both,
xt_xmap_all2all_new and xt_xmap_dist_dir_new.
- Correctness and performance have been improved for index stripe lists (
xt_idxstripes_new) and the distributed-directory based Xmap construction.
- Various internal and test-suite improvements.
A new version of PPM which
- much expands C support of functionality previously only available in Fortran
- adds the distributed multi-array data structure especially to the C part
- full configure-time support for libtool
- minor fixes for various platforms and added support for BlueGene/Q
In summary the changes are:
- Better support for BlueGene/Q and cross-compilation.
- Copy constructors for xmaps and redists.
- Support for overlapping redist repeat constituents.
- Stricter declaration of some API functions (added const).
- 2 edge cases in stripe overlap got fixed.
- The tests got improved in numerous little places.
- Internal memory allocations have slightly less overhead.
This release fixes the prevention of unnecessary duplication of MPI communicators from 0.4.2 to finally work in all cases.
This release contains a fix to prevent unnecessary duplication of MPI communicators.
Also, another example is added. It shows how to use yaxt for halo exchange of unstructured grid models.
This release contains minor fixes plus a switch to run configure tests with libtool so that users are no longer bothered with details of rpath and library dependencies.
This release adds
- a minor optimization to prevent unneeded duplication MPI communicators,
- convenience functions to reduce user input at configure time
- further documentation on how to build on Cray XC systems
- various bug-fixes for compiler/MPI fail
The API is unchanged and this version, while a major step in regard to reliability, should be a drop-in replacement for everyone using 0.3.0 at this time.