Join the REPETO project's BoF session at OSDI '26 on July 13 to learn how to package and reproduce systems experiments on Chameleon and Trovi.
Categories – Announcements
Redesigned Chameleon Resource Discovery in Preview Now
Resource discovery on Chameleon now supporting availability-aware browsing and more!
Chameleon's redesigned resource discovery service is now in preview, offering availability-aware browsing across all CHI sites. Find free bare metal nodes in real time, generate ready-to-run reservation commands, and get conflict detection — all in one unified interface.
Congratulations to Chameleon Users on Back-to-Back SC Best Reproducibility Advancement Awards!
RAPTOR wins the SC25 award — the second consecutive year a Chameleon user has taken home this honor
The RAPTOR team from Argonne National Laboratory and collaborating institutions wins the SC25 Best Reproducibility Advancement Award, using Chameleon Cloud to make their artifact fully reproducible. This marks the second consecutive year a Chameleon user has taken home this honor.
Announcing NSDI 2026 Bird-of-Feather (BoF) Session on Reproducibility
Our Reproducibility Ambassador Is Heading to NSDI ’26 — Here’s What to Expect
A PhD student selected through the Reproducibility Ambassador program funded by the NSF REPETO project is heading to NSDI '26 to share how researchers can package and reproduce their experiments using Chameleon and Trovi. Join the BoF sessions on May 4th and May 5th to see it in action.
Baremetal H100 nodes on Chameleon
We are excited to announce that Chameleon now has two baremetal H100 nodes at CHI@TACC! Last year, we announced H100 GPUs with virtual machines at KVM@TACC, but now we have this same hardware configured for baremetal on CHI@TACC, letting you run H100 experiments without going through a virtualization layer.
Chameleon User Meeting 2026: Valerie Taylor (ANL) to Deliver Keynote
On Using LLMs to Power Down HPC
This April, we're bringing together researchers, educators, and infrastructure builders for two days of honest conversation about AI on research computing infrastructure. We're thrilled to kick things off with a keynote from one of HPC's leading voices.
Announcing FAST 2026 Bird-of-Feather (BoF) Session on Reproducibility
Our Reproducibility Ambassadors Are Heading to FAST '26 — Here's What to Expect
Two PhD students selected through the Reproducibility Ambassador program funded by the NSF REPETO project are heading to FAST '26 to share how researchers can package and reproduce their experiments using Chameleon Trovi. Join them on February 24th and 25th to see it in action.
Join us in Boulder, CO - Registration now OPEN for 6th Chameleon User Meeting
Early registration pricing ends Feb. 28th, 2026 - Save Your Seat!
Registration is now open for the 6th Chameleon User Meeting (April 15-16, 2026) at NCAR Mesa Lab in Boulder, CO!
Register now: https://www.eventbrite.com/e/6th-chameleon-user-meeting-tickets-1982009337282
Early pricing ends Feb. 28.
Happy Holidays 2025 from the Chameleon Team!
Updates on Chameleon during the winter break
As we approach the holiday season, we’d like to thank you once again for being a part of our wonderful Chameleon community!
Please keep in mind the following adjustments in our schedule over the next few weeks:
The Chameleon Help Desk will be closed from Wednesday, December 24 until January 5th.
As tradition, between December 19 to the 23rd, we’ll permit you to make 14-day leases for nodes and VMs that typically have 7-day limits.
Call for Presentations: Chameleon User Meeting 2026
Submit your proposals to present in Boulder, CO at NCAR's Mesa Lab!
The Sixth Chameleon User Meeting will be held April 15-16, 2026 at the NCAR Mesa Lab in Boulder, Colorado. This year's meeting focuses on computer science research and education in Artificial Intelligence (AI) and Machine Learning (ML). The objective of the meeting is to create a community discussion on AI research, approaches to education, and most importantly what platform you need – or may need in the future – to solve the hard problems and train the workforce of the future. We invite researchers and educators using Chameleon to submit presentation proposals sharing their experiences. Come to network with scientists working on similar topics, share tips on how to muster resources and data for hard-to-get experiments, and find materials and digital artifacts to teach AI classes!
As in previous years, we will reimburse travel expenses of up to $1,500 for the presenting authors of the top 10 selected abstracts (one author per abstract).