diff --git a/packages/numlib/zoltan/3.81 b/packages/numlib/zoltan/3.81
new file mode 100755
index 0000000..7750879
--- /dev/null
+++ b/packages/numlib/zoltan/3.81
@@ -0,0 +1,45 @@
+#!/bin/sh
+# sit class file
+#
+# Christoph Niethammer <niethammer@hlrs.de> (C) 2012
+#
+# laki sit command:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.8.1 MPI=openmpi MPI_VERSION=1.6.5 ./sit numlib/zoltan/3.81
+#
+# hermit sit command:
+# PREFIX_BASE=/opt/hlrs COMPILER=pgi COMPILER_VERSION=13.10.0 ./sit numlib/zoltan/3.81
+
+CATEGORY="numlib"
+PACKAGE="zoltan"
+VERSION="3.81"
+URL="http://www.labri.fr/perso/pelegrin/scotch/"
+INSTALLER="Elke Flehmig <flehmig@hlrs.de>"
+
+# Archive A and package name P
+A=${PACKAGE}_distrib_v${VERSION}.tar.gz
+P=Zoltan_v${VERSION}
+
+case $PLATFORM in
+    hermit|hermit1)
+        echo "Building for hermit."
+        CONFIGURE_OPTS="--with-id-type=ullong CC=cc CXX=CC"
+    ;;
+    laki|*)
+        echo "Building for laki."
+        CONFIGURE_OPTS="--with-id-type=ullong CC=mpicc CXX=mpicxx"
+    ;;
+esac
+
+src_pretest() {
+    sit_info "Checking zoltan ..."
+    make check || sit_fail "Checking zoltan failed"
+    sit_info "Building examples ..."
+    make examples || sit_fail"Building examples failed"
+}
+
+src_postinst() {
+#   mv examples to target (not included in any make install version)
+    mv $BUILDDIR/example $PREFIX
+#   mv documentation to target (not included in make install)
+    mv $SRCDIR/doc $PREFIX
+}
diff --git a/packages/numlib/zoltan/3.81-parmetis-4.0.3-scotch-6.0.0 b/packages/numlib/zoltan/3.81-parmetis-4.0.3-scotch-6.0.0
new file mode 100755
index 0000000..d1d49a4
--- /dev/null
+++ b/packages/numlib/zoltan/3.81-parmetis-4.0.3-scotch-6.0.0
@@ -0,0 +1,70 @@
+#!/bin/sh
+# sit class file
+#
+# Christoph Niethammer <niethammer@hlrs.de> (C) 2012
+#
+# laki sit command:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.8.1 MPI=openmpi MPI_VERSION=1.6.5 ./sit numlib/zoltan/3.81-parmetis-4.0.3-scotch-6.0.0
+#
+# hermit sit command:
+# PREFIX_BASE=/opt/hlrs COMPILER=pgi COMPILER_VERSION=13.10.0 ./sit numlib/zoltan/3.81-parmetis-4.0.3-scotch-6.0.0
+
+CATEGORY="numlib"
+PACKAGE="zoltan"
+VERSION="3.81"
+ADD_PACKAGES="parmetis-4.0.3-scotch-6.0.0"
+URL="http://www.labri.fr/perso/pelegrin/scotch/"
+INSTALLER="Elke Flehmig <flehmig@hlrs.de>"
+
+# Archive A and package name P
+A=${PACKAGE}_distrib_v${VERSION}.tar.gz
+P=Zoltan_v${VERSION}
+
+case $PLATFORM in
+    hermit|hermit1)
+        echo "Building for hermit."
+# target prefix - show compiler version before additional packages:
+        PREFIX="${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-${COMPILER}-${COMPILER_VERSION}-${ADD_PACKAGES}"
+
+        SCOTCH=numlib/scotch/6.0.0
+        PARMETIS=numlib/parmetis/4.0.3
+        METIS=numlib/metis/5.1.0
+        CC_CMD=cc
+        CXX_CMD=CC
+
+        CONFIGURE_OPTS="CC=cc CXX=CC --with-id-type=ullong --with-scotch --with-scotch-incdir=$PREFIX_BASE/$SCOTCH/include --with-scotch-libdir=$PREFIX_BASE/$SCOTCH/lib --with-parmetis --with-parmetis-incdir=$PREFIX_BASE/$PARMETIS/include --with-parmetis-libdir=$PREFIX_BASE/$PARMETIS/lib --with-libdirs=\"-L$PREFIX_BASE/$METIS/lib\" --with-incdirs=\"-I$PREFIX_BASE/$METIS/include\" --with-libs=\"-lscotch\""
+    ;;
+    laki|*)
+        echo "Building for laki."
+# target prefix - show mpi and compiler version before additional packages:
+        PREFIX="${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-${MPI}-${MPI_VERSION}-${ADD_PACKAGES}"
+
+        SCOTCH=numlib/scotch/6.0.0-openmpi-1.6.5-gnu-4.8.1
+        PARMETIS=numlib/parmetis/4.0.3-openmpi-1.6.5-gnu-4.8.1
+        METIS=numlib/metis/5.1.0
+        CC_CMD=mpicc
+        CXX_CMD=mpicxx
+
+        CONFIGURE_OPTS="CC=mpicc CXX=mpicxx --with-id-type=ullong --with-scotch --with-scotch-incdir=$PREFIX_BASE/$SCOTCH/include --with-scotch-libdir=$PREFIX_BASE/$SCOTCH/lib --with-parmetis --with-parmetis-incdir=$PREFIX_BASE/$PARMETIS/include --with-parmetis-libdir=$PREFIX_BASE/$PARMETIS/lib --with-libdirs=\"-L$PREFIX_BASE/$METIS/lib\" --with-incdirs=\"-I$PREFIX_BASE/$METIS/include\" --with-libs=\"-lscotch\""
+    ;;
+esac
+
+src_pretest() {
+    sit_info "Checking zoltan ..."
+    make check || sit_fail "Checking zoltan failed"
+}
+
+src_postinst() {
+# as examples and doc are already installed with zoltan, set a link:
+cd $PREFIX
+case $PLATFORM in
+    hermit|hermit1)
+        ln -s ${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-$COMPILER-$COMPILER_VERSION/example
+        ln -s ${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-$COMPILER-$COMPILER_VERSION/doc
+    ;;
+    laki|*)
+        ln -s ${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-$MPI-$MPI_VERSION/example
+        ln -s ${PREFIX_BASE}/${CATEGORY}/${PACKAGE}/${VERSION}-$MPI-$MPI_VERSION/doc
+    ;;
+esac
+}