[ewg] Announcing the release of MVAPICH 1.1

[Dhabaleswar Panda]

The MVAPICH team is pleased to announce the availability of
MVAPICH-1.1 with the following NEW features:

- New Features for OpenFabrics Gen2-IB Interface
  - eXtended Reliable Connection (XRC) support
  - Lock-free design to provide support for asynchronous
    progress at both sender and receiver to overlap
    computation and communication
  - Optimized MPI_allgather collective
  - Efficient intra-node shared memory communication
    support for diskless clusters
  - Enhanced Totalview Support with the new mpirun_rsh framework

- New OpenFabrics Gen2-Hybrid Interface
  - Replaces the Gen2-UD interface of MVAPICH 1.0 series
  - Targeted for large-scale IB clusters (multi-thousand cores) to
    provide highest performance and minimal memory usage
  - Support for UD, RC and XRC transports
  - Adaptive selection during run-time (based on application and
    systems characteristics) to switch between RC and UD
    (or between XRC and UD) transports
  - Delivers performance and scalability with near constant
    memory footprint for communication contexts
  - Zero-copy protocol with UD for large data transfer
  - Multiple buffer organizations with XRC support
  - Shared memory communication between cores within a node
  - Efficient intra-node shared memory communication
    support for diskless clusters
  - Multi-core optimized collectives
    (MPI_Bcast, MPI_Barrier, MPI_Reduce and MPI_Allreduce)
  - Optimized MPI_Allgather collective
  - Enhanced Totalview Support with the new mpirun_rsh framework

- New Features for MVAPICH-InfiniPath (QLogic) Interface
  - Enhanced Totalview Support with the new mpirun_rsh framework

- New Features for Shared-Memory only Interface
  - Enhanced Totalview Support with the new mpirun_rsh framework

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

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

MVAPICH 1.1 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-IB on EM64T quad-core with PCIe2 and ConnectX-QDR:
        - 1.17 microsec one-way latency (4 bytes)
        - 2569 MB/sec unidirectional bandwidth
        - 5025 MB/sec bidirectional bandwidth

  OpenFabrics/Gen2-Hybrid on EM64T quad-core with PCIe2 and ConnectX-QDR:
        - 1.18 microsec one-way latency (4 bytes)
        - 2571 MB/sec unidirectional bandwidth
        - 5027 MB/sec bidirectional bandwidth

  OpenFabrics/Gen2-IB on Opteron quad-core with PCIe and ConnectX-DDR:
        - 1.62 microsec one-way latency (4 bytes)
        - 1628 MB/sec unidirectional bandwidth
        - 2889 MB/sec bidirectional bandwidth

  InfiniPath on EM64T quad-core with PCIe2 and QLogic-DDR:
        - 1.28 microsec one-way latency (4 bytes)
        - 1953 MB/sec unidirectional 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 MVAPICH 1.1 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