Hello I read from somewhere that OpenMPI supports some kind of data compression but I couldn't find any information about it.
Is this true and how it can be used? Does anyone have any experiences about using it? Is it possible to use compression in just some subset of communications (communicator specific compression settings)? In our MPI application we are transferring large amounts of sparse/redundant data that compresses very well. Also my initial tests showed significant improvements in performance. There are also articles that suggest that compression should be used [1]. [1] J. Ke, M. Burtcher and E. Speight. Runtime Compression of MPI Messages to Improve the Performance and Scalability of Parallel Applications. Thanks in advance, Tomas
