Communications of the ACM
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From BLOG@CACM
Exascale Computing and Big Data: Time To Reunite
It is past time to reunite the big data, cloud, and high-performance computing communities. Each can each learn much from the other.
From BLOG@CACM
Leaping the Exascale Chasm
The global race is on to build ever-faster supercomputers, fueled by a combination of scientific and engineering needs to simulate phenomena with greater resolution...
From BLOG@CACM
Exascale Software: Just a Few Orders of Magnitude
Extraordinary parallelism, unprecedented data locality and adaptive resilience: these are daunting architecture, system software and application challenges for...
From BLOG@CACM
Little's Law in the Exascale Era
When performance optimization, reliability requirements, and energy management are convolved with component costs, device physics, system software services and...
From BLOG@CACM
Analog Computing: Time For a Comeback?
Use of the word "computer" conjures certain images. One of them, so deeply ingrained that we rarely question it, is that computing is digital. The alternative,...
From BLOG@CACM
2010 Seymour Cray and Sidney Fernbach Awards
This year, I again had the honor and privilege to chair the selection committee for the IEEE Seymour Cray and Sidney Fernbach awards, both of which were presented...
From BLOG@CACM
HPC and the Excluded Middle
Betwixt and between ubiquitous consumer software and the ethereal realm of ultra-high-performance computing, lies the excluded middle, the world of day-to-day computational...
From BLOG@CACM
Simple HPC Wins
You want to be the first person to design a successful, transistorized computer system, not the last person to design vacuum tube computer. Any designer's challenge...
From BLOG@CACM
SC09 Reflections: The Need For Speed
SC09 (aka the “Supercomputing Conference”) was held during the week of November 16. The conference set an attendance record this year – roughly 10,000 attendees...
From BLOG@CACM
Cray and Fernbach Award Winners
This year, I have the honor and privilege to chair the selection committee for the Seymour Cray and Sidney Fernbach awards, which recognize outstanding contributions...
From BLOG@CACM
The Fallacy of Rankings
The list of the world's fastest computers will soon be announced. As always, we can expect the latest announcement to garner interest among the technological community...
From BLOG@CACM
HPC: Making a Small Fortune
There is an old joke in the high-performance computing community that begins with a question, “How do you make a small fortune in high-performance computing?” There...
From BLOG@CACM
High-Performance Computing: Where
By definition, the raison d’être for high-performance computing is high performance, but floating point operations per second (FLOPS) need not be the only measure...
From BLOG@CACM
When Petascale Is Just Too Slow
Evolution or revolution, it’s the persistent question. Can we build reliable esascale systems from extrapolations of current technology or will new approaches be...
From BLOG@CACM