Thanks Joe! Here are my trials -- I am not sure exactly which does what so I tried with different combinations -- hopefully more informative. Since the errors look "messy", for clarity I put them on a web page: 1. > /opt/openmpi.gcc/bin/mpirun -np 3 -d 4 -mca btl tcp -machinefile machines /home/local/bin/mpiblast -p blastp -i ./bait.fasta -d ecoli.aa Errors: http://www.animalgenome.org/~hu/share/tmp/test0.html 2. >/opt/openmpi.gcc/bin/mpirun -np 3 -mca btl tcp -machinefile machines /home/local/bin/mpiblast -p blastp -i ./bait.fasta -d ecoli.aa Errors: http://www.animalgenome.org/~hu/share/tmp/test1.html 3. > /opt/openmpi.gcc/bin/mpirun -np 3 -d 4 -machinefile machines /home/local/bin/mpiblast -p blastp -i ./bait.fasta -d ecoli.aa Errors: http://www.animalgenome.org/~hu/share/tmp/test2.html Regards, Zhiliang On Fri, 21 Sep 2007, Joe Landman wrote: > Date: Fri, 21 Sep 2007 11:20:10 -0400 > From: Joe Landman <landman at scalableinformatics.com> > To: Zhiliang Hu <hu at animalgenome.org> > Cc: HPC in Bioinformatics <bioclusters at bioinformatics.org> > Subject: Re: [Bioclusters] Re: new on using clusters: problem running mpiblast > (2) > > Zhiliang Hu wrote: >> Thanks Joe! >> >> I tested with 'which' and 'whereis', they do find 'orted' on my system. >> So I tried again with full path to "mpirun" (i am sorry I should have >> done this earlier): >> >>> /opt/openmpi.gcc/bin/mpirun -np 3 -machinefile machines >> /home/local/bin/mpiblast -p blastp -i ./bait.fasta -d ecoli.aa > > Lets have you add '-d 4' to the mpirun line in both cases. > > Also, I might suggest forcing it to use the ethernet if possible. You > would need to add in > > -mca btl tcp > > to make that happen. > >