diff --git a/Batchsystem/slurm/build b/Batchsystem/slurm/build
new file mode 100755
index 0000000..3800ffa
--- /dev/null
+++ b/Batchsystem/slurm/build
@@ -0,0 +1,14 @@
+#!/usr/bin/env modbuild
+
+pbuild::set_download_url "https://download.schedmd.com/${P}/${P}-${V}.tar.bz2"
+
+pbuild::add_to_group 'Batchsystem'
+pbuild::install_docfiles 'AUTHORS' 'INSTALL' 'NEWS' 'README.rst' 'RELEASE_NOTES'
+
+pbuild::pre_configure() {
+	pbuild::add_configure_args "--with-pmix=${PMIX_PREFIX}"
+	pbuild::add_configure_args "--with-nvml=${CUDA_PREFIX}"
+	pbuild::add_configure_args "--with-hwloc=${HWLOC_PREFIX}"
+	pbuild::add_configure_args "--with-ucx=${UCX_PREFIX}"
+	# pbuild::add_configure_args "--with-netloc=${HWLOC_PREFIX}"
+}
diff --git a/Batchsystem/slurm/files/variants.merlin6 b/Batchsystem/slurm/files/variants.merlin6
new file mode 100644
index 0000000..d30cdae
--- /dev/null
+++ b/Batchsystem/slurm/files/variants.merlin6
@@ -0,0 +1 @@
+slurm/22.05.9    unstable   b:pmix/4.2.4 b:cuda/12.1.1 b:ucx/1.14.1_slurm
diff --git a/Batchsystem/slurm/modulefile b/Batchsystem/slurm/modulefile
new file mode 100644
index 0000000..cdd0490
--- /dev/null
+++ b/Batchsystem/slurm/modulefile
@@ -0,0 +1,28 @@
+#%Module1.0
+
+module-whatis		"Slurm Workload Manager"
+module-url		"https://slurm.schedmd.com/"
+module-license		"See https://github.com/SchedMD/slurm/blob/master/LICENSE.OpenSSL"
+module-maintainer       "Marc Caubet <marc.caubet@psi.ch>"
+module-help	"
+Slurm is an open source, fault-tolerant, and highly scalable cluster 
+management and job scheduling system for large and small Linux clusters.
+
+Slurm requires no kernel modifications for its operation and is relatively 
+self-contained. As a cluster workload manager, Slurm has three key functions:
+
+  * First, it allocates exclusive and/or non-exclusive access to resources
+    (compute nodes) to users for some duration of time so they can perform
+    work.
+  * Second, it provides a framework for starting, executing, and monitoring 
+    work  (normally a parallel job) on the set of allocated nodes. 
+  * Finally, it arbitrates contention for resources by managing a queue of 
+    pending work.
+
+Optional plugins can be used for accounting, advanced reservation, gang 
+scheduling (time sharing for parallel jobs), backfill scheduling, topology 
+optimized resource selection, resource limits by user or bank account, and 
+sophisticated multifactor job prioritization algorithms. 
+"
+
+module-addgroup	Batchsystem
diff --git a/Compiler/openmpi/build b/Compiler/openmpi/build
index 389ac11..00a0e58 100755
--- a/Compiler/openmpi/build
+++ b/Compiler/openmpi/build
@@ -13,28 +13,43 @@ pbuild::install_docfiles 'AUTHORS' 'LICENSE' 'NEWS' 'README'
 
 
 pbuild::pre_configure() {
-	if [[ -n "${CUDA_VERSION}" ]]; then	
-		pbuild::add_configure_args "--with-cuda=${CUDA_HOME}"
-	fi
 	pbuild::add_configure_args "--prefix=${PREFIX}"
 	pbuild::add_configure_args "--enable-mpi-cxx"
 	pbuild::add_configure_args "--enable-mpi-cxx-seek"
 	pbuild::add_configure_args "--enable-orterun-prefix-by-default"
 	pbuild::add_configure_args "--enable-shared"
 	pbuild::add_configure_args "--enable-static"
-       	pbuild::add_configure_args "--with-hwloc=internal"
 	pbuild::add_configure_args "--with-slurm=yes"
 
+	if [[ -n "${CUDA_VERSION}" ]]; then	
+		pbuild::add_configure_args "--with-cuda=${CUDA_HOME}"
+	fi
+
         if [[ -n "${HWLOC_VERSION}" ]]; then
                 unset HWLOC_VERSION
 		pbuild::add_configure_args "--with-hwloc=${HWLOC_PREFIX}"
+        else
+       		pbuild::add_configure_args "--with-hwloc=internal"
         fi
 
+	if [[ -n "${LIBEVENT_VERSION}" ]]; then
+                pbuild::add_configure_args "--with-libevent=${LIBEVENT_PREFIX}"
+        fi 
+
         if [[ -n "${PMIX_VERSION}" ]]; then
                 unset PMIX_VERSION
 		pbuild::add_configure_args "--with-pmix=${PMIX_PREFIX}"
         fi
 
+	if [[ -n "${LIBFABRIC_VERSION}" ]]; then
+                pbuild::add_configure_args "--with-ofi=${LIBFABRIC_PREFIX}"
+                # pbuild::add_configure_args "--with-ofi-libdir=${LIBFABRIC_LIBRARY_DIR}"
+        fi 
+
+	if [[ -n "${UCX_VERSION}" ]]; then
+		pbuild::add_configure_args "--with-ucx=${UCX_PREFIX}"
+	fi
+
         if [[ -n "${INTEL_VERSION}" ]]; then
                 pbuild::add_configure_args "CC=icc"
                 pbuild::add_configure_args "CXX=icpc"
@@ -46,16 +61,10 @@ pbuild::pre_configure() {
                 pbuild::add_configure_args "--enable-debug"
         fi
 
-	if [[ -n "${LIBEVENT_VERSION}" ]]; then
-                pbuild::add_configure_args "--with-libevent=${LIBEVENT_PREFIX}"
-        fi 
-
-	if [[ -n "${UCX_VERSION}" ]]; then
-		pbuild::add_configure_args "--with-ucx=${UCX_PREFIX}"
-	fi
         if pbuild::use_flag slurm || pbuild::use_flag dgx || pbuild::use_flag merlin6; then
 		pbuild::add_configure_args "--with-pmi"
-		pbuild::add_configure_args "--with-pmi-libdir=/usr/lib64/"
+		pbuild::add_configure_args "--with-gpfs=/usr/lpp/mmfs"
+		# pbuild::add_configure_args "--with-pmi-libdir=/usr/lib64/"
 
                 if pbuild::use_flag "libpmix"; then
                   pbuild::add_configure_args "--enable-install-libpmix"
@@ -76,18 +85,29 @@ pbuild::pre_configure() {
 }
 
 pbuild::post_install() {
-	mkdir -p "${PREFIX}/lib/fallback"
-	local -r binary=$(ls "${PREFIX}"/lib/libmpi.so.*.*.*)
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libuc[mpst].so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libuct_ib.so.0'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libnuma.so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libibverbs.so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/librdmacm.so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi.so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi2.so'
-	pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi2.so'
-
-		if [[ -n "${CUDA_VERSION}" ]]; then
-		echo "opal_warn_on_missing_libcuda = 0" >> ${PREFIX}/etc/openmpi-mca-params.conf
+        if ! pbuild::use_flag slurm && ! pbuild::use_flag dgx && ! pbuild::use_flag merlin6; then
+	  mkdir -p "${PREFIX}/lib/fallback"
+	  local -r binary=$(ls "${PREFIX}"/lib/libmpi.so.*.*.*)
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libuc[mpst].so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libuct_ib.so.0'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libnuma.so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libibverbs.so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/librdmacm.so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi.so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi2.so'
+	  pbuild::install_shared_libs "${binary}" "${PREFIX}/lib/fallback" '/libpmi2.so'
 	fi
+
+	if [[ -n "${CUDA_VERSION}" ]]; then
+	  echo "opal_warn_on_missing_libcuda = 0" >> ${PREFIX}/etc/openmpi-mca-params.conf
+	fi
+
+        for FILE in $(find $PREFIX -type f \( ! -name "*.a" -and ! -name "*.mod" \) -exec grep -IL . "{}" \;)
+        do 
+          OLD_RPATH=$(objdump -a -x $FILE | grep RPATH | awk '{print $2}')
+          NEW_RPATH=$(echo $OLD_RPATH | sed 's/:\/usr\/lib64:/:/g')
+         if [[ "${OLD_RPATH}" != "${NEW_RPATH}" ]]; then
+           patchelf --force-rpath  --set-rpath "${NEW_RPATH}" "${FILE}"
+         fi
+        done
 }
diff --git a/Compiler/openmpi/files/variants.merlin6 b/Compiler/openmpi/files/variants.merlin6
index ad00fec..cb2cd16 100644
--- a/Compiler/openmpi/files/variants.merlin6
+++ b/Compiler/openmpi/files/variants.merlin6
@@ -41,7 +41,7 @@ openmpi/4.1.3_slurm     stable     gcc/{9.3.0,10.3.0,11.2.0} cuda/11.5.1 b:ucx/1
 openmpi/4.1.4_slurm     stable	   gcc/10.4.0 cuda/11.5.1 b:ucx/1.12.1_slurm
 
 openmpi/4.1.5_slurm     unstable   gcc/10.4.0 cuda/12.1.1 b:ucx/1.14.1_slurm
-openmpi/4.1.5_slurm     unstable   intelcc/22.2 cuda/12.1.1 b:pmix/4.2.4 b:ucx/1.14.1_slurm b:hwloc/2.9.1 
+openmpi/4.1.5_slurm     unstable   intelcc/22.2 b:cuda/12.1.1 b:pmix/4.2.4 b:ucx/1.14.1_slurm b:libfabric/1.18.0 b:hwloc/2.9.1 b:patchelf/0.14.5
 
 openmpi/4.0.5-1_dgx     deprecated gcc/{8.4.0,9.3.0,10.2.0} cuda/11.2.2 b:ucx/1.10.0-1_dgx
 openmpi/4.1.0-1_dgx     deprecated gcc/10.2.0 cuda/11.2.2 b:ucx/1.10.0-1_dgx
diff --git a/Libraries/libfabric/build b/Libraries/libfabric/build
new file mode 100755
index 0000000..0580efc
--- /dev/null
+++ b/Libraries/libfabric/build
@@ -0,0 +1,7 @@
+#!/usr/bin/env modbuild
+
+pbuild::set_download_url "https://github.com/ofiwg/libfabric/releases/download/v$V/$P-$V.tar.bz2"
+pbuild::add_to_group 'Libraries'
+
+pbuild::install_docfiles 'COPYING' 'AUTHORS' 'README' 'NEWS.md'
+
diff --git a/Libraries/libfabric/files/variants b/Libraries/libfabric/files/variants
new file mode 100644
index 0000000..ab94958
--- /dev/null
+++ b/Libraries/libfabric/files/variants
@@ -0,0 +1 @@
+libfabric/1.18.0    unstable  b:gcc/10.4.0
diff --git a/Libraries/libfabric/modulefile b/Libraries/libfabric/modulefile
new file mode 100644
index 0000000..d7dc74f
--- /dev/null
+++ b/Libraries/libfabric/modulefile
@@ -0,0 +1,53 @@
+#%Module1.0
+
+module-whatis		"Open Fabrics Interfaces (OFI)"
+module-url		"https://ofiwg.github.io/libfabric/"
+module-license		"Open source, see https://github.com/ofiwg/libfabric/blob/main/COPYING"
+module-maintainer	"Marc Caubet Serrabou <marc.caubet@psi.ch>"
+
+module-help		"
+The Open Fabrics Interfaces (OFI) is a framework focused on exporting 
+fabric communication services to applications.
+
+Libfabric, also known as Open Fabrics Interfaces (OFI), defines a 
+communication API for high-performance parallel and distributed 
+applications. It is a low-level communication library that abstracts 
+diverse networking technologies. Libfabric is developed by the OFI 
+Working Group (OFIWG, pronounced “o-fee-wig”), a subgroup of the 
+OpenFabrics Alliance - OFA. 
+
+Participation in the OFIWG is open to anyone, and not restricted to 
+members of OFA.
+
+The goal of libfabric is to define interfaces that enable a tight 
+semantic map between applications and underlying fabric services. 
+Specifically, libfabric software interfaces have been co-designed with 
+fabric hardware providers and application developers, with a focus on 
+the needs of HPC users. Libfabric supports multiple communication 
+semantics, is fabric and hardware implementation agnostic, and leverages
+and expands the existing RDMA open source community.
+
+Libfabric is designed to minimize the impedance mismatch between 
+applications, including middleware such as MPI, SHMEM, data storage, and
+PGAS, and fabric communication hardware. Its interfaces target 
+high-bandwidth, low-latency NICs, with a goal to scale to tens of 
+thousands of nodes.
+
+Libfabric targets support for the Linux, Free BSD, Windows, and OS X. 
+A reasonable effort is made to support all major, modern Linux 
+distributions; however, validation is limited to the most recent 2-3 
+releases of Red Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise 
+Server (SLES). Support for a particular operating system version or 
+distribution is vendor specific. The exceptions are the tcp and udp 
+based socket providers are available on all platforms.
+"
+
+unsetenv	 LIBFABRIC_LIBRARY_DIR /opt/psi/Libraries/libfabric/1.18.0/lib 
+
+remove-path	 LIBRARY_PATH $PREFIX/lib 
+remove-path	 LD_LIBRARY_PATH $PREFIX/lib 
+setenv	         LIBFABRIC_LIBRARY_DIR $PREFIX/lib64
+
+# prepend-path	 LIBRARY_PATH $PREFIX/lib64 
+# prepend-path	 LD_LIBRARY_PATH $PREFIX/lib64 
+# prepend-path     LIBFABRIC_LIBRARY_DIR $PREFIX/lib64
diff --git a/Libraries/pmix/files/variants.merlin6 b/Libraries/pmix/files/variants.merlin6
index ead5082..beb6bdd 100644
--- a/Libraries/pmix/files/variants.merlin6
+++ b/Libraries/pmix/files/variants.merlin6
@@ -3,4 +3,4 @@ pmix/2.2.5   unstable libevent/2.1.12
 pmix/3.2.3   unstable libevent/2.1.12
 pmix/4.1.2   unstable libevent/2.1.12 b:hwloc/2.7.1 
 pmix/4.2.3   unstable libevent/2.1.12 b:hwloc/2.9.1 
-pmix/4.2.4   unstable libevent/2.1.12 b:hwloc/2.9.1 
+pmix/4.2.4   unstable b:gcc/10.4.0 libevent/2.1.12 b:hwloc/2.9.1