add example script

sphinx_docs/source/nersc-visualization.rst

@@ -26,3 +26,27 @@ to deactivate conda, do::
     conda deactivate
 
 
+A sample submission script to run a python script on 1 CPU on 1 node is:
+
+.. code::
+
+   #!/bin/bash
+
+   #SBATCH -A m3018
+   #SBATCH -C cpu
+   #SBATCH -J vis
+   #SBATCH -o vis_%j.out
+   #SBATCH -t 0:01:00
+   #SBATCH -N 1
+   #SBATCH -c 1
+   #SBATCH --ntasks-per-node=1
+   #SBATCH -q regular
+
+   export OMP_NUM_THREADS=8
+   export OMP_PLACES=cores
+   export OMP_PROC_BIND=spread
+
+   module load python
+   conda activate myenv
+
+   srun python massive_star_multi.py plt19862