Thanks Peter, that was the hint I was needing. It looks like the solution for my LSF cluster was to use drmaa://-n 8/ in the universe_wsgi.ini and now I can see BLAST using 8 cores. It doesn’t scale perfectly so going higher isn't sensible but turnaround time for my test job has improved markedly.
Shane
Dr. Shane Sturrock NZGL BioIT Admin nzgl@biomatters.com