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=<val> 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
- Presentation slides from CHIUW
2019, Chapel's annual workshop, are online
- Read recent papers from HPCS, ICCS, CCGrid, HPEC, CUG, and others
- Browse slides from CLSAC'19, NIST, HPCKP'19, SIAM CSE19, and other talks
- Watch talks from HPCKP'19, ACCU 2017, CHIUW 2017, and others on YouTube
- Also see: What's New?