Welcome to the Chapel community's November 2025 newsletter. As usual, November means SC is right around the corner! We have a section below for Chapel-related events to watch out for at SC25 in St. Louis. But that's not all! Read on for news about ChapelCon '25, Technology Now podcast episode on Chapel, using MCP with Chapel, and other recent events.
Highlights
- Chapel 2.6 was released! Read this blog article for a summary of its highlights
- ChapelCon '25 took place October 7-10 with a record number of community contributions
- You can check out the talk slides and videos on its website, or via this YouTube playlist
- This year's ChapelCon had two days for demos and tutorials. You can find all the recordings from those days in this YouTube playlist
- Meet with Chapel developers and other members of the community at SC25. The next section has more details on SC25 events related to Chapel and Arkouda
- We have established a Technical Steering Committee (TSC) for Chapel and held initial meetings to get it started. Check out the new TSC repository for meeting slides and notes and the governance repository for more information about the TSC
- HPE's "Technology Now" podcast featured a discussion about Chapel with Brad Chamberlain
- Marjan Asgari has participated in an interview in the latest edition of the 7 Questions for Chapel Users blog series
- Daniel Fedorin's article "Introduction to GPU Programming in Chapel" was published in the French magazine Programmez!
- Brad Chamberlain was a panelist at the Large-Scale Scientific Data Analysis workshop organized at SLAC
- The panel discussion and his lightning talk on Chapel and Arkouda are available.
Chapel at SC25
- Engin Kayraklioglu and Oliver Alvarado Rodriguez will be at the HPE Booth on the exhibition floor presenting Chapel and Arkouda
- The Parallel Applications Workshop, Alternatives to MPI+X (PAW-ATM) will be held on Sunday, November 16th. PAW-ATM will feature a talk on Chapel:
- Michael Ferguson will present "Comparing Distributed-Memory Programming Frameworks with Radix Sort"
Recent Presentations, Publications, and Demos
- Brad Chamberlain presented "Reflections on 30 Years of HPC Programming Models (abridged)" at CLSAC 2025
- Engin Kayraklioglu presented "Scalable Parallel Programming with Chapel: From Multicore CPUs to GPU-Powered Supercomputers (a.k.a What Chapel Users Get Done and How)" at LUMI User Coffee Breaks. Video for his talk is available
- Brad Chamberlain presented "Writing Parallel Research Software in Chapel" as part of HiRSE Summer of Programming Languages. Video is available here
- Brad Chamberlain presented "Productive Parallel Programming from Laptops to Supercomputers with Chapel" at SeaGL 2025. Video for Brad's talk is also available
- Brad Chamberlain presented "Productive Parallel Programming from the Desktop to the Supercomputer with Chapel" at Radboud University
From the Chapel Blog
- Daniel Fedorin authored "Experimenting with the Model Context Protocol and Chapel"
- Brad Chamberlain published the final three articles of the “10 Myths About Scalable Parallel Programming Languages (Redux)” series, where he revisits a previous series that was published in the IEEE TCSC blog in 2012. New articles in this series are:
Upcoming Events
- On December 2, Brad Chamberlain will present "Interactive Data Science at Massive Scales using Python and Arkouda" at the UW Data Science Seminar
Recurring Public Meetings
- Chapel Project Meetings are every Tuesday 10AM PT / 1PM ET / 5PM UTC
- Chapel Deep-Dives and Demos are every Thursday 10 AM PT / 1PM ET / 5PM UTC
- This slot is reserved for any discussion including demos on ongoing work, live discussion on specific topics, or anything you may want to talk about with the community. Check upcoming discussion topics and dates, or propose your topic here!
- Chapel Teaching Meetups are every 2nd Wednesday of each month 9 AM PT / Noon ET / 4PM UTC