The MVAPICH team is pleased to announce the release of MVAPICH2 1.4RC1
with the following NEW features:
- MPI 2.1 standard compliant
- Based on MPICH2 1.0.8p1
- Dynamic Process Management (DPM) Support with mpirun_rsh and MPD
- Available for OpenFabrics (IB) interface
- Support for eXtended Reliable Connection (XRC)
- Available for OpenFabrics (IB) interface
- Kernel-level single-copy intra-node communication support based on
LiMIC2
- Delivers superior intra-node performance for medium and
large messages
- Available for all interfaces (IB, iWARP and uDAPL)
- Enhancement to mpirun_rsh framework for faster job startup
on large clusters
- Hierarchical ssh to nodes to speedup job startup
- Available for OpenFabrics (IB and iWARP), uDAPL interfaces
(including Solaris) and the New QLogic-InfiniPath interface
- Scalable checkpoint-restart with mpirun_rsh framework
- Checkpoint-restart with intra-node shared memory (kernel-level with
LiMIC2) support
- Available for OpenFabrics (IB) Interface
- K-nomial tree-based solution together with shared memory-based
broadcast for scalable MPI_Bcast operation
- Available for all interfaces (IB, iWARP and uDAPL)
- Native support for QLogic InfiniPath
- Provides support over PSM interface
This release also contains multiple bug fixes since MVAPICH2-1.2p1. A
summary of the major fixes are as follows:
- Changed parameters for iWARP for increased scalability
- Fix error with derived datatypes and Put and Accumulate operations
- Unregister stale memory registrations earlier to prevent
malloc failures
- Fix for compilation issues with --enable-g=mem and --enable-g=all
- Change dapl_prepost_noop_extra value from 5 to 8 to prevent
credit flow issues
- Re-enable RGET (RDMA Read) functionality
- Fix SRQ Finalize error
- Fix a multi-rail one-sided error when multiple QPs are used
- PMI Lookup name failure with SLURM
- Port auto-detection failure when the 1st HCA did
not have an active failure
- MPE support for shared memory collectives now available
For downloading MVAPICH2 1.4RC1, associated user guide and accessing
the SVN, please visit the following URL:
http://mvapich.cse.ohio-state.edu
All feedbacks, including bug reports and hints for performance tuning,
patches and enhancements are welcome. Please post it to the
mvapich-discuss mailing list.
Thanks,
The MVAPICH Team
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