[[PageOutline]]
= HPC Workshop Spring 2026 =
= Module 7 of 8 - Job Parallelism (Under construction) =
(Content subject to change prior to the workshop)
== What is Job Parallelism? ==
Job parallelism refers to jobs for which 2 or more processing units (or processors or cores) execute the given job's code instructions simultaneously - rather than sequentially.

== Why is Job Parallelism important? ==
Your job may need more than one processor to run more quickly - or in a timely manner - or possibly to finish at all in the allowed execution time limit. For time limits, see [wiki:cypress/about#SLURMresourcemanager SLURM (resource manager)].

== Why use a HPC Cluster? ==
* '''tasks take too long'''
 * When the task to solve becomes heavy on computations, the operations are typically outsourced from the local laptop or desktop to elsewhere.  
 * Your computation may execute more efficiently if the code supports multithreading or multiprocessing. 
 
* '''one server is not enough'''
 * When a single computer can’t handle the required computation or analysis, the work is carried out on larger groups of servers.

== Job Stages ==
* [wiki:Workshops/JobParallelism/BeforeRunningYourJob Before running your job]

* [wiki:Workshops/JobParallelism/WhileYourJobIsRunning While your job is running - determining current core efficiency]

* [wiki:Workshops/JobParallelism/AfterYourJobHasCompleted After your job has completed - determining cumulative core efficiency]