We provide an overview of how to use the Java bindings included in Open MPI. The aim is to expose MPI functionality to Java programmers with minimal performance penalties.
Open MPI is developed in a tick-tock fashion:
- Odd-numbered series are focused on feature development and expansion
- Even-numbered series are focused on stability and production usage
The even-numbered v1.8.x series therefore represents a new production-ready series that effectively deprecates the prior production-ready series (v1.6.x).
I was on vacation last week, and had a nice April Fool’s blog post queued up to be posted at 8am US Eastern time on 1 April 2014.
It should have appeared whilst I was relaxing on a beach… but due to a bug in our WordPress installation, it didn’t. And I didn’t find out about the error until after I returned from vacation (long after April 1st).
After a metric ton of work by the entire community, Open MPI has released version 1.7.5.
Among the zillions of minor updates and new enhancements are two major new features:
- MPI-3.0 conformance
- OpenSHMEM support (Linux only)
See this post on the Open MPI announcement list for more details.
It took us longer than we intended, but we finally released Open MPI v1.7.4.
Woo hoo! (we got nice coverage from El Reg, too)
This is a monster release; it represents hundreds (thousands? millions?) of person-hours of work. Consider this a ginormous “thank you!” to the entire Open MPI community! Special thanks goes to Paul Hargrove of Lawrence Berkeley Labs for his hero efforts in regression testing throughout December and January.