diff --git a/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties b/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
index d0722ce..94eb599 100644
--- a/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
+++ b/genomix/genomix-pregelix/src/test/resources/cluster/cluster.properties
@@ -20,13 +20,13 @@
 NCLOGS_DIR=$NCTMP_DIR/logs
 
 #Comma separated I/O directories for the spilling of external sort
-IO_DIRS="/tmp/t3"
+IO_DIRS="/tmp/t3,/tmp/t4"
 
 #The JAVA_HOME
 JAVA_HOME=$JAVA_HOME
 
 #The frame size of the internal dataflow engine
-FRAME_SIZE=65536
+FRAME_SIZE=131072
 
 #CC JAVA_OPTS
 CCJAVA_OPTS="-Xdebug -Xrunjdwp:transport=dt_socket,address=7001,server=y,suspend=n -Xmx3g -Djava.util.logging.config.file=logging.properties"
diff --git a/genomix/genomix-pregelix/src/test/resources/cluster/stores.properties b/genomix/genomix-pregelix/src/test/resources/cluster/stores.properties
index daf881e..04732be 100644
--- a/genomix/genomix-pregelix/src/test/resources/cluster/stores.properties
+++ b/genomix/genomix-pregelix/src/test/resources/cluster/stores.properties
@@ -1 +1 @@
-store=teststore
\ No newline at end of file
+store=teststore1,teststore2
\ No newline at end of file