hello I am running my code on an AMD cluster (32 nodes, each with 16 cores) under the sun grid engine scheduler, version 6.2u5p2, and alongside openMPI 1.4.4
I have realised that my calculations suffer from a huge performance loss (even 40 times) due to other jobs running on the same nodes I have been unable to control the actual nodes in order to make them use the "fill-up" mode, all 16 cores must be selected in a strict manner Previous SGE versions used to have the option "qsub -l exclusive..", but 6.2u5p2 does not. Will you please give me a hint of how to solve my loss of performance problem? thanks a lot Manuel Perez Jigato
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