[ewg] Announcing the release of MVAPICH2 1.2

[Dhabaleswar Panda]

The MVAPICH team is pleased to announce the availability of
MVAPICH2-1.2 with the following NEW features:

- Scalable and robust daemon-less job startup
   - Enhanced and robust mpirun_rsh framework (non-MPD-based) to
     provide scalable job launching on multi-thousand core clusters
   - Available for OpenFabrics (IB and iWARP) and uDAPL interfaces
     (including Solaris)
   - Support for Totalview debugger

- Checkpoint-restart with intra-node shared memory support
   - Allows best performance and scalability with fault-tolerance
     support

- Enhancement to software installation
   - Full autoconf-based configuration
   - Automatically detects system architecture and adapter types
     and optimizes MVAPICH2 for any particular installation
   - An application (mpiname) for querying the MVAPICH2
     library version and configuration information

- Enhanced processor affinity using PLPA for multi-core architectures
   - Allows user-defined flexible processor affinity

- Enhanced scalability for RDMA-based direct one-sided communication
  with less communication resource
   - Available for OpenFabrics (IB and iWARP) interfaces

- Shared memory optimized algorithm for MPI_Bcast operation

- Optimized and tuned MPI_Alltoall

- Based on MPICH2 1.0.7

More details on all features and supported platforms can be obtained
by visiting the following URL:

http://mvapich.cse.ohio-state.edu/overview/mvapich2/features.shtml

MVAPICH2 1.2 is being made available with OFED 1.4. It is also tested
with OFED 1.3. It continues to deliver excellent performance.  Sample
performance numbers include:

  OpenFabrics/Gen2 on EM64T quad-core with PCIe-Gen2 and ConnectX-QDR:
      Two-sided operations:
        - 1.25 microsec one-way latency (4 bytes)
        - 2573 MB/sec unidirectional bandwidth
        - 5037 MB/sec bidirectional bandwidth

      One-sided operations:
        - 2.73 microsec Put latency (4 bytes)
        - 2576 MB/sec unidirectional Put bandwidth
        - 4921 MB/sec bidirectional Put bandwidth

Performance numbers for several other platforms, system configurations
and operations can be viewed by visiting `Performance' section of the
project's web page.

For downloading MVAPICH2 1.2 package and accessing the anonymous SVN,
please visit the following URL:

http://mvapich.cse.ohio-state.edu/

All feedbacks, including bug reports, hints for performance tuning,
patches and enhancements are welcome. Please post it to the
mvapich-discuss mailing list.

Thanks,

The MVAPICH Team