diff --git a/packages/numlib/metis/5.1.0 b/packages/numlib/metis/5.1.0
index 295e6e5..bff0f49 100755
--- a/packages/numlib/metis/5.1.0
+++ b/packages/numlib/metis/5.1.0
@@ -3,6 +3,11 @@
 #
 # Christoph Niethammer <niethammer@hlrs.de> (C) 2012
 #
+# laki sit command:
+# PREFIX_BASE=/opt ./sit numlib/metis/5.1.0
+#
+# hermit sit command:
+# PREFIX_BASE=/opt/hlrs ./sit numlib/metis/5.1.0
 
 CATEGORY="numlib"
 PACKAGE="metis"
diff --git a/packages/numlib/parmetis/4.0.3 b/packages/numlib/parmetis/4.0.3
index 63fdc56..90f5f69 100755
--- a/packages/numlib/parmetis/4.0.3
+++ b/packages/numlib/parmetis/4.0.3
@@ -3,6 +3,11 @@
 #
 # Christoph Niethammer <niethammer@hlrs.de> (C) 2012
 #
+# laki sit command:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.7.3 MPI=openmpi MPI_VERSION=1.6.4 ./sit numlib/parmetis/4.0.3
+#
+# hermit sit command:
+# PREFIX_BASE=/opt/hlrs ./sit numlib/parmetis/4.0.3
 
 CATEGORY="numlib"
 PACKAGE="parmetis"
diff --git a/packages/numlib/petsc/3.4.0 b/packages/numlib/petsc/3.4.0
index b695cae..0961673 100755
--- a/packages/numlib/petsc/3.4.0
+++ b/packages/numlib/petsc/3.4.0
@@ -3,6 +3,11 @@
 #
 # Christoph Niethammer <niethammer@hlrs.de> (C) 2012
 #
+# sit command for intel:
+# PREFIX_BASE=/opt COMPILER=intel COMPILER_VERSION=13.1.2 MPI=impi MPI_VERSION=4.1.1.036 ./sit numlib/petsc/petsc-3.4.0
+#
+# sit command for gnu:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.7.3 MPI=openmpi MPI_VERSION=1.6.4 ./sit numlib/petsc/3.4.0
 
 CATEGORY="numlib"
 PACKAGE="petsc"
diff --git a/packages/numlib/scotch/6.0.0 b/packages/numlib/scotch/6.0.0
index 2e318ed..2455fee 100755
--- a/packages/numlib/scotch/6.0.0
+++ b/packages/numlib/scotch/6.0.0
@@ -3,6 +3,11 @@
 #
 # Christoph Niethammer <niethammer@hlrs.de> (C) 2012
 #
+# laki sit command:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.7.3 MPI=openmpi MPI_VERSION=1.6.4 ./sit numlib/scotch/6.0.0
+#
+# hermit sit command:
+# PREFIX_BASE=/opt/hlrs ./sit numlib/scotch/6.0.0
 
 CATEGORY="numlib"
 PACKAGE="scotch"
diff --git a/packages/numlib/zoltan/3.6 b/packages/numlib/zoltan/3.6
new file mode 100755
index 0000000..d437ef9
--- /dev/null
+++ b/packages/numlib/zoltan/3.6
@@ -0,0 +1,47 @@
+#!/bin/sh
+# sit class file
+#
+# Christoph Niethammer <niethammer@hlrs.de> (C) 2012
+#
+# laki sit command:
+# PREFIX_BASE=/opt COMPILER=gnu COMPILER_VERSION=4.7.3 MPI=openmpi MPI_VERSION=1.6.4 ./sit numlib/zoltan/3.6
+#
+# hermit sit command:
+# TODO! not yet installed with sit...
+
+CATEGORY="numlib"
+PACKAGE="zoltan"
+VERSION="3.6"
+URL="http://www.labri.fr/perso/pelegrin/scotch/"
+INSTALLER="Elke Flehmig <flehmig@hlrs.de>"
+
+# Archive A and package name P
+A=${PACKAGE}_${VERSION}.tgz
+P=${PACKAGE}_${VERSION}/Zoltan_v3.6
+
+src_prepare() {
+case $PLATFORM in
+    hermit|hermit1)
+        echo "Building for hermit."
+    ;;
+    laki|*)
+    echo "Building for laki."
+    ;;
+esac
+}
+
+CONFIGURE_OPTS="--with-id-type=ullong CC=mpicc CXX=mpicxx"
+
+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
+}