diff --git a/README.md b/README.md
index 8fdb2f5c3746cbec24d497995dd0101e475eac41..a6aaea2f181a0f8caa54fc428349108736e5b5b6 100644
--- a/README.md
+++ b/README.md
@@ -60,8 +60,8 @@ University of California, San Diego
 
 ## Version
 
-1.9.1
+1.9.3
 
 ## Last Updated
 
-Friday, September 3rd, 2021
+Saturday, September 4th, 2021
diff --git a/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4 b/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
new file mode 100644
index 0000000000000000000000000000000000000000..9e22008190504adc3746043daa5b4ec9eb5159a1
--- /dev/null
+++ b/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
@@ -0,0 +1,117 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
+
+%labels
+
+    APPLICATION_NAME OSU Micro-Benchmarks
+    APPLICATION_VERSION 5.8
+    APPLICATION_URL http://mvapich.cse.ohio-state.edu/benchmarks
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210909
+
+%setup
+
+%environment
+
+    # Set OMB major and minor version numbers, root and
+    # installation directories
+    export OMB_MAJOR='5'
+    export OMB_MINOR='8'
+    export OMB_VERSION="${OMB_MAJOR}.${OMB_MINOR}"
+    export OMB_ROOT_DIR='/opt/omb'
+    export OMB_INSTALL_DIR="${OMB_ROOT_DIR}/${OMB_VERSION}"
+
+    # Set paths to OSU Microbenchmarks binaries
+    export PATH="${OMB_INSTALL_DIR}/collective:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/one-sided:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/pt2pt:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/startup:${PATH}"
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Set NVIDIA CUDA version
+    export CUDA_MAJOR='10'
+    export CUDA_MINOR='2'
+    export CUDA_VERSION="${CUDA_MAJOR}.${CUDA_MINOR}"
+
+    # Set paths to CUDA binaries and libraries
+    export CUDA_HOME="/usr/local/cuda-${CUDA_VERSION}"
+    export PATH="${CUDA_HOME}/bin${PATH:+:${PATH}}"
+    export LD_LIBRARY_PATH="${CUDA_HOME}/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    # Set paths to OpenMPI binaries and libraries
+    export PATH="${OMPI_INSTALL_DIR}/bin:${PATH}"
+    export LD_LIBRARY_PATH="${OMPI_INSTALL_DIR}/lib:${LD_LIBRARY_PATH}"
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    cd /tmp
+
+    # Set OMB major and minor version numbers, root and
+    # installation directories
+    export OMB_ROOT_URL='http://mvapich.cse.ohio-state.edu/download/mvapich'
+    export OMB_MAJOR='5'
+    export OMB_MINOR='8'
+    export OMB_VERSION="${OMB_MAJOR}.${OMB_MINOR}"
+    export OMB_ROOT_DIR='/opt/omb'
+    export OMB_INSTALL_DIR="${OMB_ROOT_DIR}/${OMB_VERSION}"
+
+    # Download, build, and install OSU Microbenchmarks
+    wget "${OMB_ROOT_URL}/osu-micro-benchmarks-${OMB_VERSION}.tgz"
+    tar -xf "osu-micro-benchmarks-${OMB_VERSION}.tgz"
+    cd "osu-micro-benchmarks-${OMB_VERSION}"
+    ./configure --prefix="${OMB_INSTALL_DIR}" CC='mpicc' CXX='mpicxx' --enable-cuda --with-cuda-include="${CUDA_HOME}/include" --with-cuda-libpath="${CUDA_HOME}/lib64"
+    make
+    make install
+
+    # Reorganize OSU Microbenchmarks directory structure
+    cd "${OMB_INSTALL_DIR}"
+    mv libexec/osu-micro-benchmarks/mpi/collective ./
+    mv libexec/osu-micro-benchmarks/mpi/one-sided ./
+    mv libexec/osu-micro-benchmarks/mpi/pt2pt ./
+    mv libexec/osu-micro-benchmarks/mpi/startup ./
+    rm -rf libexec
+
+    cd /tmp
+
+    # Remove OMB build directory and source tarball
+    rm -rf "osu-micro-benchmarks-${OMB_VERSION}"
+    rm "osu-micro-benchmarks-${OMB_VERSION}.tgz"
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test
diff --git a/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4 b/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
new file mode 100644
index 0000000000000000000000000000000000000000..c94e326263924f7e422080a1f61ea60e6543b91b
--- /dev/null
+++ b/definition-files/omb/Singularity.omb-5.8-ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
@@ -0,0 +1,107 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
+
+%labels
+
+    APPLICATION_NAME OSU Micro-Benchmarks
+    APPLICATION_VERSION 5.8
+    APPLICATION_URL http://mvapich.cse.ohio-state.edu/benchmarks
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210908
+
+%setup
+
+%environment
+
+    # Set OMB major and minor version numbers, root and
+    # installation directories
+    export OMB_MAJOR='5'
+    export OMB_MINOR='8'
+    export OMB_VERSION="${OMB_MAJOR}.${OMB_MINOR}"
+    export OMB_ROOT_DIR='/opt/omb'
+    export OMB_INSTALL_DIR="${OMB_ROOT_DIR}/${OMB_VERSION}"
+
+    # Set paths to OSU Microbenchmarks binaries
+    export PATH="${OMB_INSTALL_DIR}/collective:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/one-sided:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/pt2pt:${PATH}"
+    export PATH="${OMB_INSTALL_DIR}/startup:${PATH}"
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    # Set paths to OpenMPI binaries and libraries
+    export PATH="${OMPI_INSTALL_DIR}/bin:${PATH}"
+    export LD_LIBRARY_PATH="${OMPI_INSTALL_DIR}/lib:${LD_LIBRARY_PATH}"
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    cd /tmp
+
+    # Set OMB major and minor version numbers, root and
+    # installation directories
+    export OMB_ROOT_URL='http://mvapich.cse.ohio-state.edu/download/mvapich'
+    export OMB_MAJOR='5'
+    export OMB_MINOR='8'
+    export OMB_VERSION="${OMB_MAJOR}.${OMB_MINOR}"
+    export OMB_ROOT_DIR='/opt/omb'
+    export OMB_INSTALL_DIR="${OMB_ROOT_DIR}/${OMB_VERSION}"
+
+    # Download, build, and install OSU Microbenchmarks
+    wget "${OMB_ROOT_URL}/osu-micro-benchmarks-${OMB_VERSION}.tgz"
+    tar -xf "osu-micro-benchmarks-${OMB_VERSION}.tgz"
+    cd "osu-micro-benchmarks-${OMB_VERSION}"
+    ./configure --prefix="${OMB_INSTALL_DIR}" CC='mpicc' CXX='mpicxx'
+    make
+    make install
+
+    # Reorganize OSU Microbenchmarks directory structure
+    cd "${OMB_INSTALL_DIR}"
+    mv libexec/osu-micro-benchmarks/mpi/collective ./
+    mv libexec/osu-micro-benchmarks/mpi/one-sided ./
+    mv libexec/osu-micro-benchmarks/mpi/pt2pt ./
+    mv libexec/osu-micro-benchmarks/mpi/startup ./
+    rm -rf libexec
+
+    cd /tmp
+
+    # Remove OMB build directory and source tarball
+    rm -rf "osu-micro-benchmarks-${OMB_VERSION}"
+    rm "osu-micro-benchmarks-${OMB_VERSION}.tgz"
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test
diff --git a/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1 b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1
new file mode 100644
index 0000000000000000000000000000000000000000..85a749a3f8c5e3e100b7070991e51992007ead8e
--- /dev/null
+++ b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1
@@ -0,0 +1,91 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04-cuda-10.2
+
+%labels
+
+    APPLICATION_NAME ubuntu + cuda mlnx-ofed
+    APPLICATION_VERSION 18.04 + 10.2. + 4.6-1.0.1.1
+    APPLICATION_URL https://www.mellanox.com/products/infiniband-drivers/linux/mlnx_ofed
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210908
+
+%setup
+
+%environment
+
+    # Set Mellanox OFED version, operating system, and hardware platform
+    export MLNX_OFED_VERSION='4.6-1.0.1.1'
+    export MLNX_OS_VERSION='ubuntu18.04'
+    export MLNX_PLATFORM='x86_64'
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    # Install all dependencies and/or prerequisites for Mellanox OFED
+    apt-get -y install bison
+    apt-get -y install chrpath
+    apt-get -y install debhelper
+    apt-get -y install dpatch
+    apt-get -y install flex
+    apt-get -y install graphviz
+    apt-get -y install libnl-3-dev
+    apt-get -y install libnl-route-3-200
+    apt-get -y install tcl-dev
+    apt-get -y install tk-dev
+    apt-get -y install swig
+
+    cd /tmp
+
+    # Set Mellanox OFED version, operating system, and hardware platform
+    export MLNX_ROOT_URL='http://www.mellanox.com/downloads/ofed'
+    export MLNX_OFED_VERSION='4.6-1.0.1.1'
+    export MLNX_OS_VERSION='ubuntu18.04'
+    export MLNX_PLATFORM='x86_64'
+
+    # Download and install Mellanox OFED drivers and supporting
+    # libraries for user space access to Ethernet, RDMA, and Infiniband.
+    # https://docs.mellanox.com/pages/releaseview.action?pageId=15049785
+    wget "${MLNX_ROOT_URL}/MLNX_OFED-${MLNX_OFED_VERSION}/MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+    tar -xf "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+    cd "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}"
+    ./mlnxofedinstall --user-space-only --without-fw-update --force
+
+    cd /tmp
+
+    # Remove Mellanox OFED archive directory and tarball
+    rm -rf "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}"
+    rm "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+
+    # Install additional tools
+    apt-get -y install numactl
+    apt-get -y install libnuma-dev
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test
diff --git a/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4 b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
new file mode 100644
index 0000000000000000000000000000000000000000..7493e57a749078149da0d7ea56ce7cc1d886242f
--- /dev/null
+++ b/definition-files/ubuntu/Singularity.ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
@@ -0,0 +1,106 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04-cuda-10.2-mlnx-ofed-4.6-1.0.1.1
+
+%labels
+
+    APPLICATION_NAME ubuntu + cuda + mlnx-ofed + openmpi
+    APPLICATION_VERSION 18.04 + 10.2. + 4.6-1.0.1.1 + 3.1.4
+    APPLICATION_URL https://www.open-mpi.org
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210909
+
+%setup
+
+%environment
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    # Set paths to OpenMPI binaries and libraries
+    export PATH="${OMPI_INSTALL_DIR}/bin:${PATH}"
+    export LD_LIBRARY_PATH="${OMPI_INSTALL_DIR}/lib:${LD_LIBRARY_PATH}"
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Set NVIDIA CUDA version
+    export CUDA_MAJOR='10'
+    export CUDA_MINOR='2'
+    export CUDA_VERSION="${CUDA_MAJOR}.${CUDA_MINOR}"
+
+    # Set paths to CUDA binaries and libraries
+    export CUDA_HOME="/usr/local/cuda-${CUDA_VERSION}"
+    export PATH="${CUDA_HOME}/bin${PATH:+:${PATH}}"
+    export LD_LIBRARY_PATH="${CUDA_HOME}/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}"
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    # Install OpenMPI dependencies
+    apt-get -y install zlib1g-dev
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_ROOT_URL='https://download.open-mpi.org/release/open-mpi'
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    cd /tmp
+
+    # Download, build, and install OpenMPI
+    wget "${OMPI_ROOT_URL}/v${OMPI_MAJOR}.${OMPI_MINOR}/openmpi-${OMPI_VERSION}.tar.gz"
+    tar -xf "openmpi-${OMPI_VERSION}.tar.gz"
+    cd "openmpi-${OMPI_VERSION}"
+    ./configure --prefix="${OMPI_INSTALL_DIR}" --enable-shared \
+      --disable-silent-rules --disable-builtin-atomics --enable-static \
+      --without-hcoll --without-psm --without-knem --without-psm2 \
+      --with-verbs=/usr --without-ofi --without-mxm --without-fca \
+      --without-xpmem --without-ucx --without-cma --without-slurm \
+      --without-tm --without-loadleveler --without-alps --without-lsf \
+      --without-sge --disable-memchecker --disable-java \
+      --disable-mpi-java --with-cuda --enable-mpi-cxx \
+      --enable-cxx-exceptions
+    make all install
+
+    cd /tmp
+
+    # Remove OpenMPI build directory and source tarball
+    rm -rf "openmpi-${OMPI_VERSION}"
+    rm "openmpi-${OMPI_VERSION}.tar.gz"
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test
diff --git a/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1 b/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1
new file mode 100644
index 0000000000000000000000000000000000000000..69e4e37c88fe53116c1b87203564f0e7647fa33d
--- /dev/null
+++ b/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1
@@ -0,0 +1,91 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04
+
+%labels
+
+    APPLICATION_NAME ubuntu + mlnx-ofed
+    APPLICATION_VERSION 18.04 + 4.6-1.0.1.1
+    APPLICATION_URL https://www.mellanox.com/products/infiniband-drivers/linux/mlnx_ofed
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210908
+
+%setup
+
+%environment
+
+    # Set Mellanox OFED version, operating system, and hardware platform
+    export MLNX_OFED_VERSION='4.6-1.0.1.1'
+    export MLNX_OS_VERSION='ubuntu18.04'
+    export MLNX_PLATFORM='x86_64'
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    # Install all dependencies and/or prerequisites for Mellanox OFED
+    apt-get -y install bison
+    apt-get -y install chrpath
+    apt-get -y install debhelper
+    apt-get -y install dpatch
+    apt-get -y install flex
+    apt-get -y install graphviz
+    apt-get -y install libnl-3-dev
+    apt-get -y install libnl-route-3-200
+    apt-get -y install tcl-dev
+    apt-get -y install tk-dev
+    apt-get -y install swig
+
+    cd /tmp
+
+    # Set Mellanox OFED version, operating system, and hardware platform
+    export MLNX_ROOT_URL='http://www.mellanox.com/downloads/ofed'
+    export MLNX_OFED_VERSION='4.6-1.0.1.1'
+    export MLNX_OS_VERSION='ubuntu18.04'
+    export MLNX_PLATFORM='x86_64'
+
+    # Download and install Mellanox OFED drivers and supporting
+    # libraries for user space access to Ethernet, RDMA, and Infiniband.
+    # https://docs.mellanox.com/pages/releaseview.action?pageId=15049785
+    wget "${MLNX_ROOT_URL}/MLNX_OFED-${MLNX_OFED_VERSION}/MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+    tar -xf "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+    cd "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}"
+    ./mlnxofedinstall --user-space-only --without-fw-update --force
+
+    cd /tmp
+
+    # Remove Mellanox OFED archive directory and tarball
+    rm -rf "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}"
+    rm "MLNX_OFED_LINUX-${MLNX_OFED_VERSION}-${MLNX_OS_VERSION}-${MLNX_PLATFORM}.tgz"
+
+    # Install additional tools
+    apt-get -y install numactl
+    apt-get -y install libnuma-dev
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test
diff --git a/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4 b/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
new file mode 100644
index 0000000000000000000000000000000000000000..0267b9247f880304095510e8c9730c235750fad5
--- /dev/null
+++ b/definition-files/ubuntu/Singularity.ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1-openmpi-3.1.4
@@ -0,0 +1,96 @@
+Bootstrap: oras
+From: ghcr.io/mkandes/naked-singularity:ubuntu-18.04-mlnx-ofed-4.6-1.0.1.1
+
+%labels
+
+    APPLICATION_NAME ubuntu + mlnx-ofed + openmpi
+    APPLICATION_VERSION 18.04 + 4.6-1.0.1.1 + 3.1.4
+    APPLICATION_URL https://www.open-mpi.org
+
+    AUTHOR_NAME Marty Kandes
+    AUTHOR_EMAIL mkandes@sdsc.edu
+
+    LAST_UPDATED 20210909
+
+%setup
+
+%environment
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    # Set paths to OpenMPI binaries and libraries
+    export PATH="${OMPI_INSTALL_DIR}/bin:${PATH}"
+    export LD_LIBRARY_PATH="${OMPI_INSTALL_DIR}/lib:${LD_LIBRARY_PATH}"
+
+%post -c /bin/bash
+
+    # Set operating system mirror URL
+    export MIRRORURL='http://us.archive.ubuntu.com/ubuntu'
+
+    # Set operating system version
+    export OSVERSION='bionic'
+
+    # Set system locale
+    export LC_ALL='C'
+
+    # Set debian frontend interface
+    export DEBIAN_FRONTEND='noninteractive'
+
+    # Upgrade all software packages to their latest versions
+    apt-get -y update && apt-get -y upgrade
+
+    # Install OpenMPI dependencies
+    apt-get -y install zlib1g-dev
+
+    # Set OpenMPI major, minor, and revision numbers, root and
+    # installation directories
+    export OMPI_ROOT_URL='https://download.open-mpi.org/release/open-mpi'
+    export OMPI_MAJOR='3'
+    export OMPI_MINOR='1'
+    export OMPI_REVISION='4'
+    export OMPI_VERSION="${OMPI_MAJOR}.${OMPI_MINOR}.${OMPI_REVISION}"
+    export OMPI_ROOT_DIR='/opt/openmpi'
+    export OMPI_INSTALL_DIR="${OMPI_ROOT_DIR}/${OMPI_VERSION}"
+
+    cd /tmp
+
+    # Download, build, and install OpenMPI
+    wget "${OMPI_ROOT_URL}/v${OMPI_MAJOR}.${OMPI_MINOR}/openmpi-${OMPI_VERSION}.tar.gz"
+    tar -xf "openmpi-${OMPI_VERSION}.tar.gz"
+    cd "openmpi-${OMPI_VERSION}"
+    ./configure --prefix="${OMPI_INSTALL_DIR}" --enable-shared \
+      --disable-silent-rules --disable-builtin-atomics --enable-static \
+      --without-hcoll --without-psm --without-knem --without-psm2 \
+      --with-verbs=/usr --without-ofi --without-mxm --without-fca \
+      --without-xpmem --without-ucx --without-cma --without-slurm \
+      --without-tm --without-loadleveler --without-alps --without-lsf \
+      --without-sge --disable-memchecker --disable-java \
+      --disable-mpi-java --without-cuda --enable-mpi-cxx \
+      --enable-cxx-exceptions
+    make all install
+
+    cd /tmp
+
+    # Remove OpenMPI build directory and source tarball
+    rm -rf "openmpi-${OMPI_VERSION}"
+    rm "openmpi-${OMPI_VERSION}.tar.gz"
+
+    # Cleanup
+    apt-get -y autoremove --purge
+    apt-get -y clean
+
+    # Update database for mlocate
+    updatedb
+
+%files
+
+%runscript
+
+%test