or possibly answering my own question, you saw the IO limitation as being apparant under the WGS benchmark and not the NT? Joe Landman wrote: > Hi Chris: > > Interesting results. In the report you wrote that your blastn nt > results were limited by IO. Could you clarify this? That is, on a 16 > GB ram machine, one should expect that the indices are completely cached > upon the first scan through the sequences, as the indices fit into much > less than 16 GB ram. We see this happen on 8 GB ram machines and below. > > Thanks. > > Joe > > Christopher Dwan wrote: > >> >> I recently had the opportunity to perform some benchmarks (BLAST, >> Clustalw, Clustalw-mpi, and MrBayes) on one of the new quad chip, >> dual core Xeon (Paxville) servers from Intel. This isn't a >> comparative study between chips, but rather a look at how batch, >> multi-thread, and MPI jobs scale on this machine. >> >> The report is linked from our main page: http://bioteam.net >> >> Disclaimer: I did this work in my corporate guise at Bioteam. >> Intel provided the hardware, access to their compilers, and they paid >> for the preparation of the report. They did not, however, exercise >> editorial control over the content. >> >> -Chris Dwan >> The BioTeam _______________________________________________ >> Bioclusters maillist - Bioclusters at bioinformatics.org >> https://bioinformatics.org/mailman/listinfo/bioclusters > > -- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: landman at scalableinformatics.com web : http://www.scalableinformatics.com phone: +1 734 786 8423 fax : +1 734 786 8452 cell : +1 734 612 4615