Chameleon’s HPC Testbed Sharpens Its Edge, Presses ‘Replay’

“One way of saying what I do for a living is to say that I develop scientific instruments,” said Kate Keahey, a senior fellow at the University of Chicago and a computer scientist at Argonne National Laboratory, as she opened her session at Supercomputing Frontiers Europe 2021 this week. Keahey was there to talk about one tool in particular: Chameleon, a testbed for computer science research run by the University of Chicago, the Texas Advanced Computing Center (TACC), UNC-Chapel Hill’s Renaissance Computing Institute (RENCI) and Northwestern University.