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MVAPICH2 Turns 1.5RC2

I can remember by 1.5′th RC2 birthday just like it was yesterday.  [but that's another story]  Last night, Dhabaleswar Panda sent a note to the mvapich mailing list detailing the latest MVAPICH2 release.  1.5RC2 includes the following features and enhancements:

  • Support for hwloc library (1.0.1) for defining CPU affinity
  • Deprecating older PLPA support for defining CPU affinity with HWLOC
  • Efficient CPU binding policies (bunch and scatter) to specify CPU binding per job for modern multi-core platforms
  • New flag in mpirun_rsh to execute tasks with different group IDs
  • Enhancement to the design of Win_complete for RMA operations
  • Flexibility to support variable number of RMA windows
  • Support for Intel iWARP NE020 adapter

A few of the squashed bugs include:

  • Compilation issue with the ROMIO adio-lustre driver
  • Allowing checkpoint-restart for large-scale systems
  • Correcting a bug in clear_kvc function
  • Shared lock operations with RMA with scatter process distribution

For more info on this release and all its glorious features, check out the mvapich page at Ohio State here.

Trackbacks

  1. [...] night that they have officially released version 1.5 of their MVAPICH2 MPI stack.  We covered the RC2 release details back in June.  Well, now you’re good to go for production [...]

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