Upload ubuntu-mpi.def

models/ICON/ubuntu-mpi.def

+BootStrap: docker
+From: ubuntu:22.04
+
+%setup
+     cp /home/maximilian/Downloads/openmpi-4.1.4.tar.bz2 \
+        ${SINGULARITY_ROOTFS}/usr/local/src/openmpi-4.1.4.tar.bz2
+
+%post
+    apt update -y 
+    apt install -y build-essential
+    apt install -y gcc gfortran 
+    apt install -y wget tar make bzip2 gzip perl rsync zip
+    apt install -y libibverbs-dev
+
+    cd /usr/local/src 
+    tar -xjf openmpi-4.1.4.tar.bz2
+    cd openmpi-4.1.4  
+
+    ./configure --prefix=/usr/local --with-hwloc --with-verbs
+    make -j 16
+    make install
+    ldconfig