diff --git a/Environment b/Environment
index 718631864a5b316c1a7aa081196f83793d68a871..804a8faac3faf28ca4a6b7af01e662f74b2588cb 100755
--- a/Environment
+++ b/Environment
@@ -14,16 +14,23 @@
 # Functions
 #
 function hasanaconda (){
-    condahost="camelot climserv ciclad"
-    h=$(hostname)
-    res=1
-    for ch in ${condahost} ; do
-	if [ $(echo $h | grep ${ch} | wc -c) != "0" ] ; then
-	    res=0
-	fi
-    done
-    return $res
+    ipsl="ipsl camelot climserv ciclad"
+    idris="idris jean-zay"
+    case $(hostname -d) in
+	climserv*|private.ipsl.fr|ipsl.polytechnique.fr)
+	    echo "IPSL"
+	    eval  "$1='ipsl'"
+	    ;;
+	idris*|jean-zay*)
+	    echo "IDRIS"
+	    eval "$1='idris'"
+	    ;;
+	*)
+	    echo "unknown machine : $(hostname -d)"
+	    eval "$1='unknown'"
+    esac
 }
+
 function checkenv (){
     rm -f checkenv.py
     cat <<EOF > checkenv.py
@@ -48,30 +55,63 @@ EOF
 #
 # Main
 #
-if ( hasanaconda ) ; then
+loc=''
+hasanaconda loc
+
+if [ loc != "unknown" ] ; then
     #
     # Make sure the right version of Python
     #
-    module unload python
-    module load python/3.6-anaconda50
-    #
-    # Test if the MPI environment is installed.
-    #
-    if [ ! -e ${HOME}/.conda/envs/MPI ] ; then
-	#
-	# Create the MPI environment as it does not exist.
-	#
-	conda create -y -n MPI mpi4py numba astropy netcdf4 matplotlib basemap ConfigParser
-	source activate MPI
-	conda install -y cartopy
-	conda install -y --channel astropy spherical-geometry
-    fi
-    #
-    # Activate the MPI environment
-    #
-    source activate MPI
+    case $loc in
+	"ipsl")
+	    module unload python
+	    module load python/3.6-anaconda50
+	    #
+	    # Test if the MPI environment is installed.
+	    #
+	    if [ ! -e ${HOME}/.conda/envs/MPI ] ; then
+		#
+		# Create the MPI environment as it does not exist.
+		#
+		conda create -y -n MPI mpi4py numba astropy netcdf4 matplotlib basemap ConfigParser
+		source activate MPI
+		conda install -y cartopy
+		conda install -y --channel astropy spherical-geometry
+	    else
+		source activate MPI
+	    fi
+	    ;;
+	"idris")
+	    module load python/3.7.3
+	    if [[ -L ${HOME}/.conda && -d ${HOME}/.conda ]] ; then
+		if [ ! -e ${WORK}/.conda/envs/MPI ] ; then
+		    conda create -y -n MPI mpi4py numba astropy netcdf4 matplotlib basemap ConfigParser cartopy
+		    conda activate MPI
+		    if [[ -L ${HOME}/.local && -d ${HOME}/.local ]] ; then
+			export PYTHONUSERBASE=$WORK/.local
+			if [ $(find $PYTHONUSERBASE -name spherical_geometry -ls | wc -l) -le 0 ] ; then
+			    git clone https://github.com/spacetelescope/spherical_geometry.git
+			    cd spherical_geometry
+			    python setup.py install --user
+			fi
+		    else
+			echo "Make sure \$HOME/.link is a link to your \$WORK/.local"
+		    fi
+		else
+		    conda activate MPI
+		fi
+	    else
+		echo "Make sure \$HOME/.conda is a link to your \$WORK/.conda"
+	    fi
+	    ;;
+	*)
+	    echo "Environment for $loc is not foreseen yet"
+	    exit
+	    ;;
+	esac
 fi
 #
 # Verify we can load all the needed modules.
-#
+	#
+	
 checkenv
diff --git a/F90subroutines/Makefile b/F90subroutines/Makefile
index 602711b154971bfdd20b7b72011033a6c29e066f..43aad9f825d9d149fd5d9a40b03007b916094f9e 100644
--- a/F90subroutines/Makefile
+++ b/F90subroutines/Makefile
@@ -4,10 +4,10 @@ obj = defprec.o ioipsl.o constantes_var.o haversine.o grid.o routing_reg.o routi
 #
 FC = gfortran
 FFLAG = -fPIC
-FDBG = -g -fbounds-check
+#FDBG = -g -fbounds-check
 #
 FPY = f2py
-PDBG =  --debug
+#PDBG =  --debug
 #
 all : routing_interface.so