--- environment_variables.orig	2018-07-04 09:14:20 UTC
+++ environment_variables
@@ -17,11 +17,14 @@ export LC_ALL
 
 # The following should be good for most cases 
 
-PREFIX=`cd ../../.. ; pwd`
+if [ -z "$PREFIX" ]; then
+  echo "Please set the PREFIX environment variable"
+  exit 1
+fi
 BIN_DIR=$PREFIX/bin
-PSEUDO_DIR=$PREFIX/pseudo
+PSEUDO_DIR=$PREFIX/share/quantum-espresso/pseudo
 # Beware: everything in $TMP_DIR will be destroyed !
-TMP_DIR=$PREFIX/tempdir
+TMP_DIR=/tmp
 
 # There should be no need to change anything below this line
 
@@ -57,7 +60,7 @@ fi
 # parallelism, do not run on too many processors
 
 PARA_PREFIX=" "
-PARA_PREFIX="mpirun -np 4"
+#PARA_PREFIX="mpirun -np 4"
 #
 # available flags: 
 #                  -ni n        number of images        (or -nimage)
@@ -68,7 +71,7 @@ PARA_PREFIX="mpirun -np 4"
 #                  -nd n        number of processors for linear algebra 
 #                                            (or -ndiag, -northo) 
 #
-PARA_POSTFIX=" -nk 1 -nd 1 -nb 1 -nt 1 "
+#PARA_POSTFIX=" -nk 1 -nd 1 -nb 1 -nt 1 "
 #
 # The following variables are used for image parallelization of PHonon 
 # (see example in PHonon/examples/Image_example)