diff --git a/Usecases/Two-phase-Richards/multi-patch/layered_soil/run-simulation b/Usecases/Two-phase-Richards/multi-patch/layered_soil/run-simulation
index 0eb497502a082a0fec07a5449b1fe946d59c8cc7..8b5d73247e5c0fd400f37e9f853fb606dc8badab 100755
--- a/Usecases/Two-phase-Richards/multi-patch/layered_soil/run-simulation
+++ b/Usecases/Two-phase-Richards/multi-patch/layered_soil/run-simulation
@@ -13,4 +13,4 @@ GREETING="Simulation $SIMULATION is run on $DATE by $USER"
 
 echo $GREETING
 echo "running $SIMULATION_FILE | tee $LOGFILE"
-./$SIMULATION_FILE | tee $LOGFILE
+nice -n 4 ./$SIMULATION_FILE | tee $LOGFILE