[Bioclusters] MPIBlast Doubts

Joe Landman bioclusters@bioinformatics.org
Wed, 04 Aug 2004 16:38:03 -0400

mpiBLAST uses a shared storage system for the database index.  It uses a =

local (per compute node) local path on each machine where it wants to=20
place its database index fragments.

So, if you place all your database indices in an NFS path which all your =

cluster compute nodes can see named


and you have all of the compute nodes use a local path for the database=20
fragments named


then your mpiblast.conf would look like


on every node.  The problem is that you will see that the first user=20
writing database fragments owns them, so subsequent users cannot=20
over-write them.  The run_mpiblast script handles all of this for you,=20
so that you don't stamp all over other peoples indices.


Ariana Priscila da Silva wrote:

>i'm installing MPIBlast and i have any doubts.
>What do mean /path/to/shared/storage and /path/to/local/storage in file =

>(Webmail  DPI mantido e desenvolvido por lucaszc@dpi.ufv.br e gcbb@dpi.u=
>WebMail DPI
>Departamento de Inform=E1tica
>Universidade Federal de Vi=E7osa
>Bioclusters maillist  -  Bioclusters@bioinformatics.org
> =20

Joseph Landman, Ph.D
Scalable Informatics LLC,
email: landman@scalableinformatics.com
web  : http://scalableinformatics.com
phone: +1 734 612 4615