[mvapich-discuss] Announcing the release of MVAPICH2-GDR 2.2rc1

[Panda, Dhabaleswar]

The MVAPICH team is pleased to announce the release of MVAPICH2-GDR
2.2rc1.

MVAPICH2-GDR 2.2rc1 is based on the standard MVAPICH2 2.2rc1 release
and incorporates designs that take advantage of the GPUDirect RDMA
technology for inter-node data movement on NVIDIA GPUs clusters with
Mellanox InfiniBand interconnect. Further, MVAPICH2-GDR 2.2rc1
provides efficient intra-node CUDA-Aware managed memory communication
and support for RDMA_CM, RoCE-V1, and RoCE-V2.

Features, Enhancements, and Bug Fixes for MVAPICH2-GDR 2.2rc1 are
listed here.

* Features and Enhancements (since MVAPICH2-GDR 2.2b)
    - Based on MVAPICH2 2.2rc1
    - Support for high-performance non-blocking send operations from GPU buffers
    - Enhancing Intranode CUDA-Aware Managed Memory communication using a new
      CUDA-IPC-based design
    - Adding support for RDMA_CM communication
    - Introducing support for RoCE-V1 and RoCE-V2
    - Introducing GPU-based tuning framework for Bcast and Gather operations

* Bug Fixes (since MVAPICH2-GDR 2.2b):
    - Properly handle socket/numa node binding
    - Remove the usage of default stream during the communication
    - Fix compile warnings
    - Properly handle out of WQE scenarios
    - Fix memory leaks in multicast code path

MVAPICH2-GDR 2.2rc1 release requires the following software to be
installed on your system:

  - Mellanox OFED 2.1 or later
  - NVIDIA Driver 331.20 or later
  - NVIDIA CUDA Toolkit 6.0 or later
  - Plugin module to enable GPUDirect RDMA
  - (Strongly recommended) NVIDIA GDRCOPY module

Further, MVAPICH2-GDR 2.2rc1 enables support on GPU-Cluster using
regular OFED (without GPUDirect RDMA).

For downloading MVAPICH2-GDR 2.2rc1, associated user guide, and sample
performance numbers please visit the following URL:

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

All questions, feedback, bug reports, hints for performance tuning,
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
2,600 world-wide (in 81 countries). The number of downloads from the
MVAPICH site has crossed 377,000 (0.37 million).  The MVAPICH team
would like to thank all its users and organizations!!