Programming/Python

Programming Details

Python is a widely used high-level programming language used for general-purpose programming. 

An interpreted language, Python has a design philosophy which emphasizes code readability (notably using whitespace indentation to delimit code blocks rather than curly braces or keywords), and a syntax which allows programmers to express concepts in fewer lines of code than possible in languages such as C++ or Java. scale.

When programming with Python in a HPC environment you will need to change the first line from

 #!/usr/bin/python

to

 #!/usr/bin/env python

Batch example

 
#!/bin/bash
#SBATCH -J compute-single-node
#SBATCH -N 1
#SBATCH --ntasks-per-node 20
#SBATCH -D /home/pysdlb/PYTHON
#SBATCH -o %N.%j.%a.out
#SBATCH -e %N.%j.%a.err
#SBATCH -p compute
#SBATCH --exclusive

echo $SLURM_JOB_NODELIST

module purge
module load anaconda/4.0
module load openmpi/gcc/1.10.2

export I_MPI_DEBUG=5
export I_MPI_FABRICS=shm:tmi
export I_MPI_FALLBACK=no

mpirun python broadcast.py

[username@login01 ~]$ sbatch python-demo.job
Submitted batch job 289572