[Beowulf] scratch File system for small cluster

Joe Landman landman at scalableinformatics.com
Thu Sep 25 07:26:51 PDT 2008

Glen Beane wrote:


>     Hi Glen:
>        BLAST uses mmap'ed IO.  This has some interesting ... interactions
>     ... with parallel file systems.
>     for what its worth, we use Paracel BLAST and are also considering
>     mpiBLAST-pio to take advantage of a parallel file system

Cool.  mpiBLAST also uses mmap'ed IO though.  That hasn't changed.  They 
just spread the IO to each process to take advantage of the parallel 
file systems.

We have a nice RPM build for mpi-BLAST-pio that a number of folks are 
using.  You can grab it from 
http://downloads.scalableinformatics.com/downloads/mpiblast/ .  And a 
shameless plug for mpiHMMer: http://www.mpihmmer.org/ while we are at it :)


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 x121
fax  : +1 866 888 3112
cell : +1 734 612 4615

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