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 – Featured
Chameleon Newsletter & Changelog June 2026
Welcome to the Chameleon June 2026 Newsletter!
This month we're reminding you not to miss out on limited-time Ponte Vecchio (Intel GPU) nodes and the plentiful hardware available at CHI@NCAR, previewing a redesigned Resource Discovery browser, adding ccauth support to python-chi, improving long-running commands on CHI@Edge, retiring the vendor-data service, and refreshing our documentation. In the community, Kate Keahey delivered a keynote at the ISC High Performance 2026 Reproducibility Workshop.
I/O Analysis is All You Need: An I/O Analysis for Long-Sequence Attention
An I/O-driven accelerator that achieves up to 3.4× speedup over FlashAttention-2 by minimizing data movement in long-sequence self-attention
Modern AI systems are often limited not only by how much computation they perform, but also by how much data they need to move. AttenIO, developed by Xiaoyang Lu at Illinois Institute of Technology, is an I/O-driven accelerator for exact long-sequence self-attention that achieves up to 3.4× speedup over FlashAttention-2 by applying principled I/O analysis to minimize data movement across the memory hierarchy.
Getting Access to Chameleon as a Student Researcher
A guide to finding the right path onto the system
If you're a student trying to use Chameleon for research but can't figure out how to get access, you're not alone. This guide walks through all the available paths onto the system — from joining a PI's project to using Daypass to explore without any allocation at all.
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.