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python-parallel

Demonstrates basic functionality of Python threading module in Python3.x to perform parallel operations on a single node (following the SMP paradigm).

Getting started

To load/create a conda environment and its (ACCRE) package dependencies:

$ source job.sh [conda_enviroment_name]

Batch mode

$ sbatch batch_job.slurm

Debug mode

$ salloc --partition=debug --nodes=2 --tasks-per-node=4

A practical(?) example

In the Ipython notebooks, we address the following coding problem from Rosetta Code

Task

Find, through brute force, the five-letter passwords corresponding with the following SHA-256 hashes:

  1. 1115dd800feaacefdf481f1f9070374a2a81e27880f187396db67958b207cbad
  2. 3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b
  3. 74e1bb62f8dabb8125a58852b63bdf6eaef667cb56ac7f7cdba6d7305c50a22f

Your program should naively iterate through all possible passwords consisting only of five lower-case ASCII English letters. It should use concurrent or parallel processing, if your language supports that feature. You may calculate SHA-256 hashes by calling a library or through a custom implementation. Print each matching password, along with its SHA-256 hash.