by Daniel S. Berger, David Brooks, Fiodar Kazhamiaka, Mark D. Hill, Ricardo Bianchini, Carole-Jean Wu, Karin Strauss, Kali Frost, Jaylen Wang, Kevin Martins, Sharon Gillett, Esha Choukse, Dan Ernst, Rodrigo Fonseca, Kari Lio, Bhargavi Narayanasetty, Pratyush Patel, Celine Irvene, Akshitha Sriraman, George Porter, Alex Jones, Udit Gupta, Bilge Acun-Uyan, Kim Hazelwood, and Doug Carmean on Aug 3, 2023 | Tags: Accelerators, amd, apple, Architecture, Carbon emissions, Cloud computing, Datacenters, embodied carbon, intel, Measurements, nvidia, operational carbon, qualcomm, Sustainability, tsmc
A recent post raises awareness of the challenges of reducing operational carbon, while also controversially challenging the importance of embodied carbon. We rebut the arguments raised against using embodied carbon as a design metric and conclude by advocating for more research on reducing embodied carbon.
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by Richard L. Sites on Jan 25, 2022 | Tags: Measurements, Performance, Performance Counters, Processors, System Analysis
Part 1 of this article discussed a reliable elapsed-time counter design. This Part 2 discusses the four counters needed to make sense of unexpectedly slow execution: total issue slots, issue slots filled with instructions, filled issue slots that actually issue, and...
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by Richard L. Sites on Jan 24, 2022 | Tags: Measurements, Performance, Performance Counters, Processors, System Analysis
Introduction I created the performance counters found in almost all CPU chips today, initially in the DEC Alpha 20164 and DEC NVAX chips, announced in early 1992 and late 1991 respectively, but running internally earlier. I made some mistakes, focusing on what events...
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by Jason Lowe-Power and Matt Sinclair on Sep 12, 2019 | Tags: Measurements, Methodology, Simulators
RE-gem5 is a directed effort to rejuvenate the underlying infrastructure of gem5. RE-gem5 is not a new simulator or a new project; it is a project to enhance and support the current gem5 infrastructure. The community-developed gem5 infrastructure is one of the most...
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by Emery D. Berger, Stephen M. Blackburn, Matthias Hauswirth, Michael W. Hicks on Apr 22, 2019 | Tags: Artifact Evaluation, Measurements, Methodology
In 2009, Dr. Atul Gawande, a surgeon at Brigham and Women’s Hospital in Boston, published The Checklist Manifesto: How to Get Things Right, describing his experience using checklists to reduce the risk of errors. Gawande observed that a number of serious...
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