HI We have a Beowulf cluster at our college and we are looking for ways to parallelize and perform BLAST searches on the Beowulf cluster. We have seen that it is hopeless trying to understand the BLAST source code and work on it (to parallelize it). Can anyone give any code for running Blast on the cluster or give (implementation) details on "parallel Blast" - especially how you split the database into subdomains, how to wrap the BLAST code to carry out the BLAST subsearches, and finally to parse and merge the subsearch results? Thanks Arun