diff --git a/h/hwloc/hwloc-1.11.12.eb b/h/hwloc/hwloc-1.11.12.eb
new file mode 100644
index 00000000..d169e914
--- /dev/null
+++ b/h/hwloc/hwloc-1.11.12.eb
@@ -0,0 +1,45 @@
+# IT4Innovations 2019
+
+easyblock = 'ConfigureMake'
+
+name = 'hwloc'
+version = '1.11.12'
+
+homepage = 'https://www.open-mpi.org/projects/hwloc/'
+
+description = """
+ The Portable Hardware Locality (hwloc) software package provides a portable
+ abstraction (across OS, versions, architectures, ...) of the hierarchical
+ topology of modern architectures, including NUMA memory nodes, sockets, shared
+ caches, cores and simultaneous multithreading. It also gathers various system
+ attributes such as cache and memory information as well as the locality of I/O
+ devices such as network interfaces, InfiniBand HCAs or GPUs. It primarily
+ aims at helping applications with gathering information about modern computing
+ hardware so as to exploit it accordingly and efficiently.
+"""
+
+toolchain = SYSTEM
+# need to build with -fno-tree-vectorize to avoid segfaulting lstopo on Intel Skylake
+# cfr. https://github.com/open-mpi/hwloc/issues/315
+toolchainopts = {'vectorize': False}
+
+source_urls = ['https://www.open-mpi.org/software/hwloc/v%(version_major_minor)s/downloads/']
+sources = [SOURCE_TAR_GZ]
+checksums = ['f1d49433e605dd653a77e1478a78cee095787d554a94afe40d1376bca6708ca5']
+
+dependencies = [
+    ('numactl', '2.0.12'),
+    ('libpciaccess', '0.14'),
+]
+
+configopts = "--enable-libnuma=$EBROOTNUMACTL "
+configopts += "--disable-cairo --disable-opencl --disable-cuda --disable-nvml --disable-gl --disable-libudev "
+
+sanity_check_paths = {
+    'files': ['bin/lstopo', 'include/hwloc/linux.h',
+              'lib/libhwloc.%s' % SHLIB_EXT],
+    'dirs': ['share/man/man3'],
+}
+sanity_check_commands = ['lstopo']
+
+moduleclass = 'system'
diff --git a/l/Libmsr/Libsmr-master-20191216.eb b/l/Libmsr/Libsmr-master-20191216.eb
index 97e65c91..e3906b79 100644
--- a/l/Libmsr/Libsmr-master-20191216.eb
+++ b/l/Libmsr/Libsmr-master-20191216.eb
@@ -17,6 +17,10 @@ sources = ['libmsr-master-20191216.tar.gz']
 
 builddependencies = [('CMake', '3.16.0', '-rc3')]
 
+dependencies = [
+   ('hwloc', '1.11.12'),
+]
+
 sanity_check_paths = {
     'files': ['bin/msrmod', 'lib/libmsr.a', 'lib/libmsr.so'],
     'dirs': ['bin', 'share', 'include', 'lib'],
diff --git a/l/libpciaccess/libpciaccess-0.14.eb b/l/libpciaccess/libpciaccess-0.14.eb
new file mode 100644
index 00000000..a7cecd73
--- /dev/null
+++ b/l/libpciaccess/libpciaccess-0.14.eb
@@ -0,0 +1,27 @@
+# IT4Innvoations 2019
+
+easyblock = 'ConfigureMake'
+
+name = 'libpciaccess'
+version = '0.14'
+
+homepage = 'http://cgit.freedesktop.org/xorg/lib/libpciaccess/'
+description = """Generic PCI access library."""
+
+toolchain = SYSTEM
+
+source_urls = ['https://www.x.org/releases/individual/lib/']
+sources = [SOURCE_TAR_GZ]
+checksums = ['8d86e64893917be3dfb1c5e837888d1275399c818783474002203d751312b03c']
+
+builddependencies = [
+    ('Autotools', '20180311', '', True),
+    ('xorg-macros', '1.19.1', '', True),
+]
+
+sanity_check_paths = {
+    'files': ['include/pciaccess.h', 'lib/libpciaccess.a'],
+    'dirs': ['lib/pkgconfig'],
+}
+
+moduleclass = 'system'
diff --git a/n/numactl/numactl-2.0.12.eb b/n/numactl/numactl-2.0.12.eb
new file mode 100644
index 00000000..dc2870c1
--- /dev/null
+++ b/n/numactl/numactl-2.0.12.eb
@@ -0,0 +1,35 @@
+# IT4Innovations 2019
+
+easyblock = 'ConfigureMake'
+
+name = 'numactl'
+version = '2.0.12'
+
+homepage = 'http://oss.sgi.com/projects/libnuma/'
+
+description = """
+ The numactl program allows you to run your application program on specific
+ cpu's and memory nodes. It does this by supplying a NUMA memory policy to
+ the operating system before running your program. The libnuma library provides
+ convenient ways for you to add NUMA memory policies into your own program.
+"""
+
+toolchain = SYSTEM
+toolchainopts = {'pic': True}
+
+source_urls = ['https://github.com/numactl/numactl/archive/']
+sources = ['v%(version)s.tar.gz']
+checksums = ['7c3e819c2bdeb883de68bafe88776a01356f7ef565e75ba866c4b49a087c6bdf']
+
+builddependencies = [
+    ('Autotools', '20180311'),
+]
+
+preconfigopts = "./autogen.sh && "
+
+sanity_check_paths = {
+    'files': ['bin/numactl', 'bin/numastat', 'lib/libnuma.%s' % SHLIB_EXT, 'lib/libnuma.a'],
+    'dirs': ['share/man', 'include']
+}
+
+moduleclass = 'tools'
diff --git a/o/OpenMPI/OpenMPI-3.1.5.eb b/o/OpenMPI/OpenMPI-3.1.5.eb
new file mode 100644
index 00000000..db9d01d5
--- /dev/null
+++ b/o/OpenMPI/OpenMPI-3.1.5.eb
@@ -0,0 +1,46 @@
+# IT4Innovations 2019
+
+easyblock = 'ConfigureMake'
+
+name = 'OpenMPI'
+version = '3.1.5'
+
+homepage = 'http://www.open-mpi.org/'
+description = """The Open MPI Project is an open source MPI-2 implementation."""
+
+toolchain = SYSTEM
+
+source_urls = [
+    'http://www.open-mpi.org/software/ompi/v%(version_major_minor)s/downloads']
+sources = [SOURCELOWER_TAR_GZ]
+
+dependencies = [
+    ('hwloc', '1.11.12'),
+    ('zlib', '1.2.11'),
+    ('binutils', '2.32'),
+    ('UCX', '1.6.1'),
+]
+
+configopts = '--with-tm=/opt/pbs '  # Enable PBS
+configopts += '--with-ucx=$EBROOTUCX '
+
+osdependencies = [('libibverbs-dev', 'libibverbs-devel', 'rdma-core-devel')]
+
+libs = ["mpi_mpifh", "mpi", "ompitrace", "open-pal", "open-rte"]
+sanity_check_paths = {
+    'files': [
+        "bin/%s" %
+        binfile for binfile in [
+            "ompi_info", "opal_wrapper", "orterun"]] + [
+                "lib/lib%s.%s" %
+                (libfile, SHLIB_EXT) for libfile in libs] + [
+                    "include/%s.h" %
+                    x for x in [
+                        "mpi-ext", "mpif-config", "mpif", "mpi", "mpi_portable_platform"]], 'dirs': [], }
+
+modextravars = {'OMPI_MCA_btl_openib_if_include': 'mlx5_0',
+                'OMPI_MCA_btl_tcp_if_include': '10.33.4.0/24',
+                'OMPI_MCA_orte_base_help_aggregate': '0',
+                }
+
+moduleclass = 'mpi'
diff --git a/u/UCX/UCX-1.6.1.eb b/u/UCX/UCX-1.6.1.eb
new file mode 100644
index 00000000..e2c0e43f
--- /dev/null
+++ b/u/UCX/UCX-1.6.1.eb
@@ -0,0 +1,39 @@
+# IT4Innovations 2019
+easyblock = 'ConfigureMake'
+
+name = 'UCX'
+version = '1.6.1'
+
+homepage = 'http://www.openucx.org/'
+description = """Unified Communication X
+An open-source production grade communication framework for data centric
+and high-performance applications
+"""
+
+toolchain = SYSTEM
+toolchainopts = {'pic': True}
+
+source_urls = ['https://github.com/openucx/ucx/releases/download/v%(version)s']
+sources = ['%(namelower)s-%(version)s.tar.gz']
+
+builddependencies = [
+    ('pkg-config', '0.29.2'),
+]
+
+osdependencies = [('libibverbs-dev', 'libibverbs-devel', 'rdma-core-devel')]
+
+dependencies = [
+    ('numactl', '2.0.12'),
+]
+
+configopts = '--enable-optimizations --enable-cma --enable-mt --with-verbs '
+configopts += '--without-java --disable-doxygen-doc '
+
+buildopts = 'V=1'
+
+sanity_check_paths = {
+    'files': ['bin/ucx_info', 'bin/ucx_perftest', 'bin/ucx_read_profile'],
+    'dirs': ['include', 'lib', 'share']
+}
+
+moduleclass = 'lib'