diff --git a/CatalystEnabledSimulation/fedriver.py b/CatalystEnabledSimulation/fedriver.py
index 929628c4345fbb1fcc509ef03ab96006c71663a5..78deb07b13ec3b6d436b8e78851b16823714c90a 100644
--- a/CatalystEnabledSimulation/fedriver.py
+++ b/CatalystEnabledSimulation/fedriver.py
@@ -25,7 +25,7 @@ rank = comm.Get_rank()
 
 import fedatastructures
 
-grid = fedatastructures.GridClass([10, 12, 10], [2, 2, 2])
+grid = fedatastructures.GridClass([5, 6, 5], [4, 4, 4])
 attributes = fedatastructures.AttributesClass(grid)
 doCoprocessing = True
 
diff --git a/notebooks/catalyst.ipynb b/notebooks/catalyst.ipynb
index bc3029625ffab83299d9f1729f6c3607a4c3f467..f5f09664522238c14e713e5ca04748cd1e5a274b 100644
--- a/notebooks/catalyst.ipynb
+++ b/notebooks/catalyst.ipynb
@@ -49,6 +49,7 @@
    "source": [
     "%%bash --bg --proc server_process\n",
     "export OMP_NUM_THREADS=1\n",
+    "pkill -f pvserver",
     "pvserver --server-port=11223 > ${JUPYTER_LOG_DIR}/pvserver.log 2>&1"
    ]
   },
@@ -67,6 +68,7 @@
    "source": [
     "%%bash --bg --proc catalyst_process\n",
     "export OMP_NUM_THREADS=1\n",
+    "pkill -f pvpython",
     "cd CatalystEnabledSimulation\n",
     "pvpython ./fedriver.py ./cpscript.py > ${JUPYTER_LOG_DIR}/simulation.log 2>&1"
    ]