The Chapel Parallel Programming Language

What is Chapel?

Chapel is a modern programming language that is…

• parallel: contains first-class concepts for concurrent and parallel computation
• productive: designed with programmability and performance in mind
• portable: runs on laptops, clusters, the cloud, and HPC systems
• scalable: supports locality-oriented features for distributed memory systems
• open-source: hosted on GitHub, permissively licensed

New to Chapel?

As an introduction to Chapel, you may want to…

• • read a blog
    article or book
    chapter
  • watch an overview
    talk or browse its slides
  • download the release
  • browse sample
    programs
  • view other resources to learn
    how to trivially write distributed programs
    like this:

use CyclicDist;           // use the Cyclic distribution library
config const n = 100;     // use --n= when executing to override this default

forall i in {1..n} dmapped Cyclic(startIdx=1) do
  writeln("Hello from iteration ", i, " of ", n, " running on node ", here.id);

What’s Hot?

• Chapel 1.20 is now available—download a copy or browse its release notes
• Browse presentations from
  PuPPy, PAW-ATM’19, CLSAC’19, NIST, and
  others
• Read recent papers
  from HPCS, ICCS, CCGrid, HPEC, CUG, and others
• Watch talks fromHPCKP’19,
  ACCU 2017,
  CHIUW 2017, and others
  on YouTube
• Also see: What’s New?