On 07/01/16 01:03, Novosielski, Ryan wrote: > Since this is an audience that might know, and this is related (but > off-topic, sorry): is there any truth to the suggestions on the Internet > that using srun is /slower/ than mpirun/mpiexec?
In our experience Open-MPI 1.6.x and earlier (PMI-1 support) is slower with srun than with mpirun. This was tested with NAMD. Open-MPI 1.8.x and later with PMI-2 is about the same with srun as with mpirun. All the best, Chris -- Christopher Samuel Senior Systems Administrator VLSCI - Victorian Life Sciences Computation Initiative Email: [email protected] Phone: +61 (0)3 903 55545 http://www.vlsci.org.au/ http://twitter.com/vlsci
