Hi all, Does the query size of mpiblast effect the total performance? It took about 17 seconds per sequence when I run 721 sequences (542K) against 22G database. But when I run 88532 sequences (47M) against the same database, it took about 1 minute. Can the performance be improved if the query sequence is in a relatively smaller size? Thank you for your kind comments and suggestions. Chuming Chen -------------- next part -------------- A non-text attachment was scrubbed... Name: chen.vcf Type: text/x-vcard Size: 347 bytes Desc: not available Url : http://bioinformatics.org/pipermail/bioclusters/attachments/20060315/ea19ceac/chen.vcf