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 1.17 is now available—download a copy or browse its release notes
- Our CUG 2018 paper and slides survey the past five
years of Chapel's progress
- The CHIUW 2018 presentation slides are now available on
the program page
- Chapel is proud to be a Rails
Girls Summer of Code 2018 organization
- Watch talks from ACCU 2017, CHIUW 2017, and ATPESC 2016 on YouTube
- Browse slides from PNW PLSE, SIAM PP18, NWCPP, SeaLang, or other talks
- Also see: What's New?