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).
For the first time, Chapel will be represented at @fosdem.org!
If you will be at FOSDEM 2026, make sure to stop by the HPC, Big Data & Data Science track on Sunday and see Jade Abraham talk about Productive Parallel Computing in Chapel and Arkouda.
fosdem.org/2026/schedul...
If you will be at FOSDEM 2026, make sure to stop by the HPC, Big Data & Data Science track on Sunday and see Jade Abraham talk about Productive Parallel Computing in Chapel and Arkouda.
fosdem.org/2026/schedul...
January 29, 2026 at 7:03 PM
For the first time, Chapel will be represented at @fosdem.org!
If you will be at FOSDEM 2026, make sure to stop by the HPC, Big Data & Data Science track on Sunday and see Jade Abraham talk about Productive Parallel Computing in Chapel and Arkouda.
fosdem.org/2026/schedul...
If you will be at FOSDEM 2026, make sure to stop by the HPC, Big Data & Data Science track on Sunday and see Jade Abraham talk about Productive Parallel Computing in Chapel and Arkouda.
fosdem.org/2026/schedul...
Read about how Oliver Alvarado Rodriguez used Chapel to implement large-scale exploratory graph analysis for his Ph.D. dissertation in our latest "7 Questions for Chapel Users" interview on the Chapel blog:
chapel-lang.org/blog/posts/7...
chapel-lang.org/blog/posts/7...
January 23, 2026 at 5:48 PM
Read about how Oliver Alvarado Rodriguez used Chapel to implement large-scale exploratory graph analysis for his Ph.D. dissertation in our latest "7 Questions for Chapel Users" interview on the Chapel blog:
chapel-lang.org/blog/posts/7...
chapel-lang.org/blog/posts/7...
Interested in language design? Join the Chapel developers in discussing various language features during our public deep dive meeting this Thursday, January 22nd at 10:00am Pacific Time.
Find the details at github.com/chapel-lang/...
Find the details at github.com/chapel-lang/...
January 20, 2026 at 10:31 PM
Interested in language design? Join the Chapel developers in discussing various language features during our public deep dive meeting this Thursday, January 22nd at 10:00am Pacific Time.
Find the details at github.com/chapel-lang/...
Find the details at github.com/chapel-lang/...
Intrigued by the High Performance Software Foundation (HPSF, @hpsf.bsky.social) and projects like ours that are members of it? Be sure to check out the following article, which reviews highlights of 2025 and what we’re all working on in the year to come.
hpsf.io/blog/2026/ch...
hpsf.io/blog/2026/ch...
January 12, 2026 at 6:50 PM
Intrigued by the High Performance Software Foundation (HPSF, @hpsf.bsky.social) and projects like ours that are members of it? Be sure to check out the following article, which reviews highlights of 2025 and what we’re all working on in the year to come.
hpsf.io/blog/2026/ch...
hpsf.io/blog/2026/ch...
Today, we are releasing Chapel 2.7, our first new version since joining @hpsf.bsky.social. Highlights include a new flag for vector libraries, improved support for debugging, and advances to the Mason package manager.
Learn more about these changes, and others, at: chapel-lang.org/blog/posts/a...
Learn more about these changes, and others, at: chapel-lang.org/blog/posts/a...
December 18, 2025 at 10:19 PM
Today, we are releasing Chapel 2.7, our first new version since joining @hpsf.bsky.social. Highlights include a new flag for vector libraries, improved support for debugging, and advances to the Mason package manager.
Learn more about these changes, and others, at: chapel-lang.org/blog/posts/a...
Learn more about these changes, and others, at: chapel-lang.org/blog/posts/a...
Can Chapel be used to write transformers? How does the resulting performance compare against C++ or PyTorch? Check out the second and final article in Thitrin Sastarasadhit’s “Transformers from Scratch in Chapel and C++” series on the Chapel blog: chapel-lang.org/blog/posts/t...
December 15, 2025 at 9:30 PM
Can Chapel be used to write transformers? How does the resulting performance compare against C++ or PyTorch? Check out the second and final article in Thitrin Sastarasadhit’s “Transformers from Scratch in Chapel and C++” series on the Chapel blog: chapel-lang.org/blog/posts/t...
Chapel is at HPE Discover Barcelona this week! Stop by the High Performance Software demo station (#227) on December 3rd and 4th to chat with Daniel Fedorin about Chapel and Arkouda.
December 3, 2025 at 7:44 PM
Chapel is at HPE Discover Barcelona this week! Stop by the High Performance Software demo station (#227) on December 3rd and 4th to chat with Daniel Fedorin about Chapel and Arkouda.
With #SC25 wrapped and the U.S. Thanksgiving break behind us, it is time to gear up for the final stretch of 2025. Make sure to recap recent Chapel events featured in the November newsletter.
chapel.discourse.group/t/chapel-new...
chapel.discourse.group/t/chapel-new...
December 2, 2025 at 12:12 AM
With #SC25 wrapped and the U.S. Thanksgiving break behind us, it is time to gear up for the final stretch of 2025. Make sure to recap recent Chapel events featured in the November newsletter.
chapel.discourse.group/t/chapel-new...
chapel.discourse.group/t/chapel-new...
For those in the Seattle area, Brad Chamberlain will be speaking at the UW Data Science Seminar tomorrow, Dec 2, introducing Arkouda—the Chapel-based framework supporting interactive data science at scale from Python.
For details, see: escience.washington.edu/events/uw-da...
uwescience.bsky.social
For details, see: escience.washington.edu/events/uw-da...
uwescience.bsky.social
December 2, 2025 at 12:11 AM
For those in the Seattle area, Brad Chamberlain will be speaking at the UW Data Science Seminar tomorrow, Dec 2, introducing Arkouda—the Chapel-based framework supporting interactive data science at scale from Python.
For details, see: escience.washington.edu/events/uw-da...
uwescience.bsky.social
For details, see: escience.washington.edu/events/uw-da...
uwescience.bsky.social
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...
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...
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...
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...
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
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
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...
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
ChapelCon '25 is less than a month away! 4 days of tutorials, presentations, and demos for all experience levels. Register for this free, fully virtual event today:
#HPC #OpenSource
chapel-lang.org/chapelcon25
#HPC #OpenSource
chapel-lang.org/chapelcon25
September 9, 2025 at 11:43 PM
ChapelCon '25 is less than a month away! 4 days of tutorials, presentations, and demos for all experience levels. Register for this free, fully virtual event today:
#HPC #OpenSource
chapel-lang.org/chapelcon25
#HPC #OpenSource
chapel-lang.org/chapelcon25