Hi Folks: We built some source and binary RPM's for mpiBLAST 1.2.0. You can find them at http://downloads.scalableinformatics.com/downloads/mpiblast/ or linked off of our main page http://scalableinformatics.com . These RPM's assume you have an operational and functional mpich installation. They should work with most architectures, though I am working on fixing the Opteron build. We created these as people seemed to have some trouble building the package, and installing it on their systems. If you grab the binary version, please edit the /usr/local/etc/mpiblast.conf file as per the instructions on the mpiBLAST page at http://mpiblast.lanl.gov . Please send us a note on any problems you encounter with this packaging. To install the binary version, download the appropriate binary and as root, run rpm -Uvh mpiBLAST-1.2.0-3.i686.rpm This assumes you have grabbed the i686 architecture binary. If you would prefer to build from source, make sure you have a functional mpich install with mpe, have it in your path and be able to compile with mpiCC, and then run: rpmbuild --rebuild mpiBLAST-1.2.0-3.src.rpm to build a binary. Then use the resulting binary RPM to install. Joe -- Joseph Landman, Ph.D Scalable Informatics LLC email: landman@scalableinformatics.com web: http://scalableinformatics.com phone: +1 734 612 4615