diff --git a/scripts/templates/thor_submit.pbs b/scripts/templates/thor_submit.pbs
index bb3bae2..f2e1034 100644
--- a/scripts/templates/thor_submit.pbs
+++ b/scripts/templates/thor_submit.pbs
@@ -6,5 +6,5 @@
 #PBS -j oe
 
 cd %ROOTDIR%
-time ~/psdlag-agn/bin/psdlag %ROOTDIR%/%ARGSFILE% > %ROOTDIR%/%OUTPUTFILE%
+time mpirun -machinefile ${PBS_NODEFILE} -np 1 ~/psdlag-agn/bin/psdlag %ROOTDIR%/%ARGSFILE% > %ROOTDIR%/%OUTPUTFILE%