The MVAPICH team is pleased to announce the release of MVAPICH2-X
2.3rc1 (with support for advanced MPI Features, OSU INAM, and Hybrid
MPI+PGAS) and OSU Micro-Benchmarks (OMB) 5.4.4.
MVAPICH2-X 2.3rc1 provides support for advanced MPI features/support
(XPMEM, enhanced asynchronous progress design, User Mode Memory
Registration (UMR), Dynamically Connected (DC) transport protocol,
On-Demand Paging (ODP), SHARP and Data Partitioning-based Multi-Leader
Design (DPML) for MPI collectives, Contention Aware Kernel-Assisted
MPI collectives, and Non-blocking Collectives with Core-Direct), OSU
INAM, and hybrid MPI+PGAS (UPC, OpenSHMEM, CAF, and UPC++) programming
models with unified communication runtime for emerging exascale
systems. This library also provides flexibility for users to write
applications using the following programming models with a unified
communication runtime: MPI, MPI+OpenMP, pure UPC, pure OpenSHMEM, pure
UPC++, and pure CAF programs as well as hybrid MPI(+OpenMP) + PGAS
(UPC, OpenSHMEM, CAF, and UPC++) programs.
Features and enhancements for MVAPICH2-X 2.3rc1 are as follows:
* Features and Enhancements (since 2.3b):
- MPI Features
- Based on MVAPICH2 2.3GA
- OFA-IB-CH3, OFA-IB-RoCE, PSM-CH3, and PSM2-CH3 interfaces
- MPI (Advanced) Features/Support
- Support for XPMEM-based point-to-point operations
- OFA-IB-CH3 and OFA-IB-RoCE interfaces
- Support for XPMEM-based MPI collective operations (Reduce and
All-Reduce)
- OFA-IB-CH3 and OFA-IB-RoCE interfaces
- Enhanced asynchronous progress designs for progressing non-blocking
point-to-point and collective operations
- OFA-IB-CH3, OFA-IB-RoCE, PSM-CH3, and PSM2-CH3 interfaces
- UPC Features
- Support Contention Aware Kernel-Assisted MPI collectives
- OpenSHMEM Features
- Support Contention Aware Kernel-Assisted MPI collectives
- Unified Runtime Features
- Based on MVAPICH2 2.3 (OFA-IB-CH3 interface). All the runtime
features enabled by default in OFA-IB-CH3 and OFA-IB-RoCE interface
of MVAPICH2 2.3 are available in MVAPICH2-X 2.3rc1
* Bug Fixes (since 2.3b):
- Fix issues with OpenSHMEM Non-Blocking remote memory access routines
- Fix compilation warnings and memory leaks
New features, enhancements and bug fixes for OSU Micro-Benchmarks
(OMB) 5.4.4 are listed here.
* Bug Fixes (since 5.4.3)
- Deprecate the need to specify get_local_rank when running GPU-based
benchmarks
- Enhance error checking for GPU-based benchmarks
- Fix issues in GPU-based OpenACC benchmarks
For downloading MVAPICH2-X 2.3rc1, OMB 5.4.4 and associated user
guides, quick start guide, and accessing the SVN, please visit the
following URL:
http://mvapich.cse.ohio-state.edu
All questions, feedback, bug reports, hints for performance tuning,
patches and enhancements are welcome. Please post it to the
mvapich-discuss mailing list (mvapich-discuss at cse.ohio-state.edu).
Thanks,
The MVAPICH Team
PS: We are also happy to inform that the number of organizations using
MVAPICH2 libraries (and registered at the MVAPICH site) has crossed
2,950 worldwide (in 86 countries). The number of downloads from the
MVAPICH site has crossed 493,000 (0.49 million). The MVAPICH team
would like to thank all its users and organizations!