Re: [OMPI users] Message compression in OpenMPI

2008-04-28 Thread Tomas Ukkonen
; >>> - non HPC environments with slow network: beowulf clusters and/or >>> internet + normal PCs where you use existing workstations and >>> network >>> for computations. >>> - communication/io-bound computations where you transfer >>> large redund

Re: [OMPI users] Message compression in OpenMPI

2008-04-24 Thread Tomas Ukkonen
nodes So it would be nice to be able to turn on the compression (for spefic communicators and/or data transfers) when you need it. -- Tomas > george. > > On Apr 22, 2008, at 9:03 AM, Tomas Ukkonen wrote: > >> Hello >> >> I read from somewhere that OpenMPI supports

Re: [OMPI users] Message compression in OpenMPI

2008-04-24 Thread Tomas Ukkonen
Jeff Squyres wrote: > On Apr 22, 2008, at 9:03 AM, Tomas Ukkonen wrote: > >> 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 us

[OMPI users] Message compression in OpenMPI

2008-04-22 Thread Tomas Ukkonen
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 (communicat