Anyone have any experience with MpiBlast and Lustre. We have MpiBlast-1.4.0-pio and lustre-1.6.3 and we are seeing some pretty poor performance with most of the mpiblast threads spending 20% to 50% of their time in disk wait. We have the genbank nt database split into 24 fragments (one for each of our OSTs, 3 per OSS). The individual fragments are not striped due to the ldlm_poold issue so that should not be the problem.
Should we not be using the PIO (ROM-IO) version of MPIBlast w/ lustre? I'm wondering if there are some already discovered guidelines for using MPIBlast on top of Lustre that I'm not finding via google. Thanks, Charlie Taylor UF HPC Center _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
