diff --git a/RTCP/Cobalt/GPUProc/src/scripts/cobalt_functions.sh b/RTCP/Cobalt/GPUProc/src/scripts/cobalt_functions.sh
index 06c46236025c66c0dae08b1fba7bbdbdb2612d02..c489c069a33a4aa192cab5cef0600d330fbdcfe6 100755
--- a/RTCP/Cobalt/GPUProc/src/scripts/cobalt_functions.sh
+++ b/RTCP/Cobalt/GPUProc/src/scripts/cobalt_functions.sh
@@ -43,7 +43,8 @@ function read_cluster_model {
   case "${CLUSTER_NAME}" in
     CEP4)
       HEADNODE=head01.cep4.control.lofar
-      COMPUTENODES="`seq -f "cpu%02.0f.cep4" 1 50`"
+      #COMPUTENODES="`seq -f "cpu%02.0f.cep4" 1 50`"
+      COMPUTENODES="`seq -f "cpu%02.0f.cep4" 1 26` `seq -f "cpu%02.0f.cep4" 30 35` `seq -f "cpu%02.0f.cep4" 37 39`"
       NRCOMPUTENODES=50
 
       GLOBALFS_DIR=/data