Add docu

frontera.md

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+# How to run as singularity container on frontera?
+
+Copy `singularity.def` to your home directory on frontera.
+Then execute: 
+
+```
+module load tacc-apptainer
+singularity pull -F docker://seissol/training:latest
+singularity build -f my-training.sif singularity.def
+singularity run my-training.sif
+```
+
+You can abort the jupyter lab with Ctrl-C, confirm with `y`.
+Now you should see a directory `seissol-training`.
+This folder should contain four directories for different scenarios.
+To run the TPV13 scenario, you should:
+
+```
+cd seissol-training/tpv13
+mpirun singularity run ~/my-training.sif gmsh -3 tpv13_training.geo
+mpirun singularity run ~/my-training.sif pumgen -s msh2 tpv13_training.msh
+OMP_NUM_THREADS=56 mpirun singularity run ~/my-training.md seissol parameters.par
+```
+
+You can directly visualize the results on Frontera:
+
+1. Open a VNC connection to Frontera
+2. `module load swr qt5 ospray paraview`
+3. `swr -p 1 paraview`
+4. In the paraview GUI, open `output/tpv13-fault.xdmf`.
+
+
+

singularity.def

@@ -1,11 +1,4 @@
 Bootstrap: docker
 From: seissol/training:latest
 
-%post
-  sed -i 's/\/home\/training/~\/.seissol-training/g' /entrypoint.sh
-
-%runscript
-  cp -r /home/training ~/.seissol-training
-  /entrypoint.sh
-