Chapel Programming Language
@chapellanguage.bsky.social
Chapel is a programming language for productive parallel programming, for everyone and at every scale. Learn more about us on our website (https://chapel-lang.org).
New on the Chapel blog: Read part 1 of Thitrin Sastarasadhit’s experience implementing Transformers from scratch in Chapel and C++, comparing to Python. This work was done as an undergraduate summer internship at University of Tokyo under Kenjiro Taura.
chapel-lang.org/blog/posts/t...
chapel-lang.org/blog/posts/t...
November 21, 2025 at 7:27 PM
New on the Chapel blog: Read part 1 of Thitrin Sastarasadhit’s experience implementing Transformers from scratch in Chapel and C++, comparing to Python. This work was done as an undergraduate summer internship at University of Tokyo under Kenjiro Taura.
chapel-lang.org/blog/posts/t...
chapel-lang.org/blog/posts/t...
If you’re at #SC25 and haven’t had the chance to talk to Oliver or Engin about Chapel and Arkouda yet, be sure to stop by the High Performance Software demo station at the HPE booth while the show room floor is open today or tomorrow!
November 19, 2025 at 5:48 PM
If you’re at #SC25 and haven’t had the chance to talk to Oliver or Engin about Chapel and Arkouda yet, be sure to stop by the High Performance Software demo station at the HPE booth while the show room floor is open today or tomorrow!
The French paper magazine @magazineprogrammez.bsky.social has printed an article on GPU programming in Chapel by @endofunctor.bsky.social! Grab a digital copy and check out this and other articles here:
www.programmez.com/magazine/art...
www.programmez.com/magazine/art...
November 19, 2025 at 5:40 PM
The French paper magazine @magazineprogrammez.bsky.social has printed an article on GPU programming in Chapel by @endofunctor.bsky.social! Grab a digital copy and check out this and other articles here:
www.programmez.com/magazine/art...
www.programmez.com/magazine/art...
Reposted by Chapel Programming Language
We’re so excited to share that HPSF has been recognized as the Best HPC Collaboration in the 22nd edition of the HPCwire Readers’ Choice Awards! 🏆
Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds!
hpsf.io/blog/2025/hp...
Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds!
hpsf.io/blog/2025/hp...
November 18, 2025 at 12:58 AM
We’re so excited to share that HPSF has been recognized as the Best HPC Collaboration in the 22nd edition of the HPCwire Readers’ Choice Awards! 🏆
Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds!
hpsf.io/blog/2025/hp...
Thank you to everyone who voted for HPSF. We’re excited for what the future of HPC holds!
hpsf.io/blog/2025/hp...
The Chapel team at HPE is proud to announce that we are now an official @hpsf.bsky.social project! For details, please see HPSF’s announcement below:
Chapel has joined HPSF 🚀👏 Chapel is an open source language for scalable parallel computing, enabling efficient computation across desktops, clusters, & supercomputers. Through HPSF, Chapel will continue to grow as a community-governed project. Learn more: hpsf.io/blog/2025/hp...
November 17, 2025 at 5:50 PM
The Chapel team at HPE is proud to announce that we are now an official @hpsf.bsky.social project! For details, please see HPSF’s announcement below:
Chapel’s November Newsletter is out! As with last year’s edition, this one features a special section for events at #SC25. It also has news from ChapelCon ’25, talks, articles, and other community events.
chapel.discourse.group/t/chapel-new...
chapel.discourse.group/t/chapel-new...
November 17, 2025 at 4:41 PM
Chapel’s November Newsletter is out! As with last year’s edition, this one features a special section for events at #SC25. It also has news from ChapelCon ’25, talks, articles, and other community events.
chapel.discourse.group/t/chapel-new...
chapel.discourse.group/t/chapel-new...
@bradcray.bsky.social will give a talk on Chapel tomorrow (Friday, Nov 7) at @seagl.org — the Seattle GNU/Linux Conference dedicated to open-source software, hardware, and culture. To attend this free conference in person or remotely, please see:
seagl.org/attend
#SeaGL2025
seagl.org/attend
#SeaGL2025
Attend SeaGL 2025
seagl.org
November 6, 2025 at 7:47 PM
@bradcray.bsky.social will give a talk on Chapel tomorrow (Friday, Nov 7) at @seagl.org — the Seattle GNU/Linux Conference dedicated to open-source software, hardware, and culture. To attend this free conference in person or remotely, please see:
seagl.org/attend
#SeaGL2025
seagl.org/attend
#SeaGL2025
PSA: The Chapel website has been having some connectivity and security certificate issues over the past day or two. We apologize for the inconvenience and are working with our hosting company to bring it back online and stabilize it.
October 31, 2025 at 9:34 PM
PSA: The Chapel website has been having some connectivity and security certificate issues over the past day or two. We apologize for the inconvenience and are working with our hosting company to bring it back online and stabilize it.
This week’s episode of HPE’s “Technology Now” podcast focuses on Chapel, featuring a discussion between Brad Chamberlain and Michael Bird!
#HPC #OpenSource
Head to hpe.lnk.to/Chapelgu to stream it from your favorite podcast platform.
#HPC #OpenSource
Head to hpe.lnk.to/Chapelgu to stream it from your favorite podcast platform.
Why would you programme in Chapel?
What is Chapel? This week, Technology Now explores the programming language, Chapel. We ask what it I, how it was designed, and we explore why people would use it instead of some of the more establish...
hpe.lnk.to
October 30, 2025 at 5:40 PM
This week’s episode of HPE’s “Technology Now” podcast focuses on Chapel, featuring a discussion between Brad Chamberlain and Michael Bird!
#HPC #OpenSource
Head to hpe.lnk.to/Chapelgu to stream it from your favorite podcast platform.
#HPC #OpenSource
Head to hpe.lnk.to/Chapelgu to stream it from your favorite podcast platform.
In case you missed it live, Engin Kayraklioglu's talk at LUMI User Coffee Breaks is now available online. Check it out to learn more about how Chapel makes going from programming a laptop to a supercomputer easy.
#HPC #OpenSource
lumi-supercomputer.github.io/LUMI-trainin...
#HPC #OpenSource
lumi-supercomputer.github.io/LUMI-trainin...
October 20, 2025 at 6:07 PM
In case you missed it live, Engin Kayraklioglu's talk at LUMI User Coffee Breaks is now available online. Check it out to learn more about how Chapel makes going from programming a laptop to a supercomputer easy.
#HPC #OpenSource
lumi-supercomputer.github.io/LUMI-trainin...
#HPC #OpenSource
lumi-supercomputer.github.io/LUMI-trainin...
Should a good parallel language design be minimal in nature? Read @bradcray.bsky.social's take on this question in this month's edition of his "10 Myths About Scalable Parallel Programming Languages" blog series.
chapel-lang.org/blog/posts/1...
chapel-lang.org/blog/posts/1...
October 17, 2025 at 7:35 PM
Should a good parallel language design be minimal in nature? Read @bradcray.bsky.social's take on this question in this month's edition of his "10 Myths About Scalable Parallel Programming Languages" blog series.
chapel-lang.org/blog/posts/1...
chapel-lang.org/blog/posts/1...
Have an idea for the new Chapel logo? Make sure to read github.com/chapel-lang/... and submit your proposal by October 21st!
Chapel Logo Design · Issue #27901 · chapel-lang/chapel
Hello Chapel community! We are entering a new chapter in the language's history and joining HPSF! As we migrate to HPSF, we will be getting a new logo to represent the project. The Chapel Technical...
github.com
October 16, 2025 at 7:39 PM
Have an idea for the new Chapel logo? Make sure to read github.com/chapel-lang/... and submit your proposal by October 21st!
Upcoming talk alert: Join Engin Kayraklioglu during the LUMI User Coffee Break on Oct. 15th 9AM ET. He will cover several applications of Chapel and how its language features allow its users to go from laptops to supercomputers with ease.
More info & link: www.lumi-supercomputer.eu/events/userc...
More info & link: www.lumi-supercomputer.eu/events/userc...
October 14, 2025 at 6:07 PM
Upcoming talk alert: Join Engin Kayraklioglu during the LUMI User Coffee Break on Oct. 15th 9AM ET. He will cover several applications of Chapel and how its language features allow its users to go from laptops to supercomputers with ease.
More info & link: www.lumi-supercomputer.eu/events/userc...
More info & link: www.lumi-supercomputer.eu/events/userc...
And that's a wrap on ChapelCon '25! Huge thanks to all the presenters for their hard work and the participants for their engagement. You can catch replays of the tutorials and presentations soon! Until next year 👋
October 13, 2025 at 7:09 PM
And that's a wrap on ChapelCon '25! Huge thanks to all the presenters for their hard work and the participants for their engagement. You can catch replays of the tutorials and presentations soon! Until next year 👋
ChapelCon ’25 Conference Days start today! Join us for four sessions on Chapel applications and algorithms, and a keynote address from Chris Rackauckas of MIT's JuliaLab. The conference begins at 9AM PT.
Register for free here: hpe.zoom.us/j/91206107280
Register for free here: hpe.zoom.us/j/91206107280
October 9, 2025 at 4:33 PM
ChapelCon ’25 Conference Days start today! Join us for four sessions on Chapel applications and algorithms, and a keynote address from Chris Rackauckas of MIT's JuliaLab. The conference begins at 9AM PT.
Register for free here: hpe.zoom.us/j/91206107280
Register for free here: hpe.zoom.us/j/91206107280
✅ ChapelCon '25 Day 1 is complete! ✅ Thank you to our presenters and participants. See you tomorrow for tutorials and demos on some of Chapel's advanced features.
Register here: chapel-lang.org/chapelcon25/
Register here: chapel-lang.org/chapelcon25/
October 7, 2025 at 11:00 PM
✅ ChapelCon '25 Day 1 is complete! ✅ Thank you to our presenters and participants. See you tomorrow for tutorials and demos on some of Chapel's advanced features.
Register here: chapel-lang.org/chapelcon25/
Register here: chapel-lang.org/chapelcon25/
Curious about high performance computing? Emanuele Vitali will be speaking at ChapelCon '25 next week about @lumi-supercomputer.eu, one of the fastest supercomputers in Europe. Register to attend for free:
#HPC #Supercomputer
www.chapel-lang.org/chapelcon25
#HPC #Supercomputer
www.chapel-lang.org/chapelcon25
October 3, 2025 at 6:08 PM
Curious about high performance computing? Emanuele Vitali will be speaking at ChapelCon '25 next week about @lumi-supercomputer.eu, one of the fastest supercomputers in Europe. Register to attend for free:
#HPC #Supercomputer
www.chapel-lang.org/chapelcon25
#HPC #Supercomputer
www.chapel-lang.org/chapelcon25
Reposted by Chapel Programming Language
ChapelCon 25 is coming up! 🚀 Join the free, online event from October 7–10 to dive into productive parallel programming with Chapel.
There’s something for everyone: tutorials, coding sessions, office hours, and talks.
Sign up here: hpe.zoom.us/meeting/regi...
There’s something for everyone: tutorials, coding sessions, office hours, and talks.
Sign up here: hpe.zoom.us/meeting/regi...
September 29, 2025 at 5:58 PM
ChapelCon 25 is coming up! 🚀 Join the free, online event from October 7–10 to dive into productive parallel programming with Chapel.
There’s something for everyone: tutorials, coding sessions, office hours, and talks.
Sign up here: hpe.zoom.us/meeting/regi...
There’s something for everyone: tutorials, coding sessions, office hours, and talks.
Sign up here: hpe.zoom.us/meeting/regi...
ChapelCon '25 is less than 2 weeks away, and the program is ✨live✨! We've got 4 days of jam-packed activities. Check out the program and register to attend here:
#HPC #OpenSource
chapel-lang.org/chapelcon25/
#HPC #OpenSource
chapel-lang.org/chapelcon25/
September 25, 2025 at 12:40 AM
ChapelCon '25 is less than 2 weeks away, and the program is ✨live✨! We've got 4 days of jam-packed activities. Check out the program and register to attend here:
#HPC #OpenSource
chapel-lang.org/chapelcon25/
#HPC #OpenSource
chapel-lang.org/chapelcon25/
We recently added a new public weekly meeting on Thursdays at 10am PT for deep-dives and demos. This week, on September 26th, PhD student Shubh Singhal (Habanero Labs/Ga Tech) will share recent aggregation results on ORNL’s Frontier.
Join us, or propose a topic, at: github.com/chapel-lang/...
Join us, or propose a topic, at: github.com/chapel-lang/...
September 22, 2025 at 8:56 PM
We recently added a new public weekly meeting on Thursdays at 10am PT for deep-dives and demos. This week, on September 26th, PhD student Shubh Singhal (Habanero Labs/Ga Tech) will share recent aggregation results on ORNL’s Frontier.
Join us, or propose a topic, at: github.com/chapel-lang/...
Join us, or propose a topic, at: github.com/chapel-lang/...
Chapel 2.6 is out! A new DynamicLoading module, enabling a whole new way of interoperating with C, and significantly improved debugging experience are
just a few highlights among many!
Read the announcement for more chapel-lang.org/blog/posts/a...
just a few highlights among many!
Read the announcement for more chapel-lang.org/blog/posts/a...
September 19, 2025 at 9:58 PM
Chapel 2.6 is out! A new DynamicLoading module, enabling a whole new way of interoperating with C, and significantly improved debugging experience are
just a few highlights among many!
Read the announcement for more chapel-lang.org/blog/posts/a...
just a few highlights among many!
Read the announcement for more chapel-lang.org/blog/posts/a...
Can higher-level languages like Chapel compete with MPI? For the answer, check out the latest installment of Brad Chamberlain's "10 Myths About Scalable Parallel Programming Languages (Redux)" series:
#HPC #OpenSource
chapel-lang.org/blog/posts/1...
#HPC #OpenSource
chapel-lang.org/blog/posts/1...
September 18, 2025 at 8:24 PM
Can higher-level languages like Chapel compete with MPI? For the answer, check out the latest installment of Brad Chamberlain's "10 Myths About Scalable Parallel Programming Languages (Redux)" series:
#HPC #OpenSource
chapel-lang.org/blog/posts/1...
#HPC #OpenSource
chapel-lang.org/blog/posts/1...
Marjan Asgari’s interview on the “7 Questions for Chapel Users” series is now online! Chapel helped Dr. Asgari parallelize large-scale geospatial tasks and datasets in hydrological modeling. Read her interview to learn more.
chapel-lang.org/blog/posts/7...
chapel-lang.org/blog/posts/7...
September 15, 2025 at 9:13 PM
Marjan Asgari’s interview on the “7 Questions for Chapel Users” series is now online! Chapel helped Dr. Asgari parallelize large-scale geospatial tasks and datasets in hydrological modeling. Read her interview to learn more.
chapel-lang.org/blog/posts/7...
chapel-lang.org/blog/posts/7...
As part of preparing to join @hpsf.bsky.social, the newly formed Chapel Technical Steering Committee (TSC) is gearing up for its second meeting! This meeting is public and will be held in the weekly Chapel deep-dive slot, Thursday, September 18th at 10am PT.
Details at: github.com/chapel-lang/...
Details at: github.com/chapel-lang/...
Discussion topics for Sept 18 TSC meeting · Issue #3 · chapel-lang/TSC
Proposed topics for our second TSC meeting, scheduled for Thursday, Sept 18 at 10am PT, are: for the near-term, are people comfortable taking TSC votes without an anonymizing voting mechanism? timi...
github.com
September 11, 2025 at 9:53 PM
As part of preparing to join @hpsf.bsky.social, the newly formed Chapel Technical Steering Committee (TSC) is gearing up for its second meeting! This meeting is public and will be held in the weekly Chapel deep-dive slot, Thursday, September 18th at 10am PT.
Details at: github.com/chapel-lang/...
Details at: github.com/chapel-lang/...
Sign up for an office hour session for ChapelCon '25 to meet with a Chapel core developer about topics that interest you!
#HPC #OpenSource
forms.cloud.microsoft/r/k2z5DuLLUM
#HPC #OpenSource
forms.cloud.microsoft/r/k2z5DuLLUM
September 11, 2025 at 4:33 PM
Sign up for an office hour session for ChapelCon '25 to meet with a Chapel core developer about topics that interest you!
#HPC #OpenSource
forms.cloud.microsoft/r/k2z5DuLLUM
#HPC #OpenSource
forms.cloud.microsoft/r/k2z5DuLLUM