[mvapich-discuss] Announcing the release of MVAPICH2 1.0

[Dhabaleswar Panda]

The MVAPICH team is pleased to announce the availability of
MVAPICH2-1.0 with the following NEW features:

- Message coalescing support to enable reduction of per Queue-pair
  send queues for reduction in memory requirement on large scale
  clusters. This design also increases the small message messaging
  rate significantly. Available for Open Fabrics Gen2-IB.

- Hot-Spot Avoidance Mechanism (HSAM) for alleviating
  network congestion in large scale clusters. Available for
  Open Fabrics Gen2-IB.

- RDMA CM based on-demand connection management for large scale
  clusters. Available for OpenFabrics Gen2-IB and Gen2-iWARP.

- uDAPL on-demand connection management for large scale clusters.
  Available for uDAPL interface (including Solaris IB implementation).
 
- RDMA Read support for increased overlap of computation and
  communication. Available for OpenFabrics Gen2-IB and Gen2-iWARP.

- Application-initiated system-level (synchronous) check-pointing in
  addition to the user-transparent check-pointing. User application
  can now request a whole program checkpoint synchronously with BLCR
  by calling special functions within the application. Available for
  OpenFabrics Gen2-IB.

- Network-Level fault tolerance with Automatic Path Migration (APM)
  for tolerating intermittent network failures over InfiniBand.
  Available for OpenFabrics Gen2-IB.

- Integrated multi-rail communication support for OpenFabrics
  Gen2-iWARP and RDMA CM (with Gen2-IB).

- RDMA based Direct One-sided communication support for OpenFabrics
  Gen2-iWARP and RDMA CM (with Gen2-IB).

- Blocking mode of communication progress. Available for OpenFabrics
  Gen2-IB.

- Based on MPICH2 1.0.5p4.

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 1.0 is tested with OFED 1.1, OFED 1.2 and OFED 1.2.5 (for
ConnectX). It continues to deliver excellent performance.  Sample
performance numbers include:

  OpenFabrics/Gen2 on EM64T quad-core with PCIe and ConnectX-DDR:
      Two-sided operations: 
        - 1.66 microsec one-way latency (4 bytes)
        - 1405 MB/sec unidirectional bandwidth 
        - 2716 MB/sec bidirectional bandwidth  

      One-sided operations:
        - 3.19 microsec Put latency 
        - 1405 MB/sec unidirectional Put bandwidth 
        - 2716 MB/sec bidirectional Put bandwidth 

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

For downloading MVAPICH2 1.0 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
mvapich-discuss mailing list.

Thanks, 

MVAPICH Team at OSU/NBCL 

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MVAPICH/MVAPICH2 project is currently supported with funding from
U.S. National Science Foundation, U.S. DOE Office of Science,
Mellanox, Intel, Cisco Systems, QLogic, Sun Microsystems and Linux
Networx; and with equipment support from Advanced Clustering, AMD,
Appro, Chelsio, Dell, Fujitsu, Fulcrum, IBM, Intel, Mellanox,
Microway, NetEffect, QLogic and Sun Microsystems. Other technology
partner includes Etnus.
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