[Bioclusters] MPIBlast Doubts

[Joe Landman]

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

       /database

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

       /scratch

then your mpiblast.conf would look like

       /database
       /scratch

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.

Joe

Ariana Priscila da Silva wrote:

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

>mpiblast.conf?
>
>
>thanks=20
>
>
>Ariana
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--=20
Joseph Landman, Ph.D
Scalable Informatics LLC,
email: landman@scalableinformatics.com
web  : http://scalableinformatics.com
phone: +1 734 612 4615