Index: /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh	(revision 25712)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.12-mac.sh	(revision 25713)
@@ -51,4 +51,4 @@
 
 # Compile and install
-make -j 16
-make -j 16 install
+make
+make install
Index: /issm/trunk-jpl/externalpackages/petsc/install-3.14-mac.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.14-mac.sh	(revision 25712)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.14-mac.sh	(revision 25713)
@@ -40,9 +40,4 @@
 
 # Compile and install
-if [ $# -eq 0 ]; then
-	make
-	make install
-else
-	make -j $1
-	make -j $1 install
-fi
+make
+make install