Re: [OMPI users] OpenMPI 1.1.4 vs. 1.2

2007-04-17 Thread George Bosilca
There were several improvements for TCP in the 1.2. We expect it to behave in a more optimized way compared with the 1.1.x. Can you share your code so I can take a look to see what's happening ? Thanks, george. On Apr 17, 2007, at 4:30 PM, Michael wrote: To maintain compatibility wit

[OMPI users] OpenMPI 1.1.4 vs. 1.2

2007-04-17 Thread Michael
To maintain compatibility with a major HPC center I upgraded(?) from OpenMPI 1.1.4 to OpenMPI 1.2 on my local cluster. In testing on my local cluster, 13 dual-Opteron Linux boxes with dual gigabit ethernet, I discovered that my program runs slower using OpenMPI 1.2 then OpenMPI 1.1.4 (780.3