4 ms·
I almost didn't submit it because there were no details on what "mathematical equations" were used. I think the emphasis was (or should have been) on the algor
by Oatseller 11y ago
I almost didn't submit it because there were no details on what "mathematical equations" were used.
I think the emphasis was (or should have been) on the algorithms developed to work with multiple processors, but there wasn't much info on that either.
"When you connect 100 computers and tell them to solve a system of
equations, I need to break it into 100 pieces and ship each piece to a
computer, and then they need to talk to each other," Farhat said.
"They cannot do this independently."
To confront this well-known problem, Farhat and his team – led by Jari
Toivanen, Radek Tezaur and Philip Avery – collaborated with the ARL
DSRC to craft algorithms to divide these calculations among thousands
of computers.
The team members worked around the clock for three weeks to prepare
their software for the test on Excalibur. When the day came last
month, they had access to a significant chunk of the facility's
101,184 processors to divide slices of their equations, share
information and solve the problem. A mere three minutes later, those
thousands of processors had solved over 10 billion calculations
accurately.
It's also troubling when the link to "Army High Performance Computing Research Center (AHPCRC)" gives a Drupal error.
- math_and_stuff 11y agoIf you're interested, Prof. Farhat is very well known for the FETI method [1], which is likely what is being alluded to by the article. But the article as written is devoid of any description of what was interesting about the calculation. [1] https://en.wikipedia.org/wiki/FETI https://en.wikipedia.org/wiki/FETI
- Oatseller 11y agoThanks for the link. I agree, the article is missing important information.
- Oatseller 11y agoProf. Farhat is very well known for the FETI method And he's flown with the Blue Angels (I would give anything to do that). https://www.flickr.com/photos/stanfordeng/sets/72157648134366930/ https://www.flickr.com/photos/stanfordeng/sets/7215764813436...
- thrownaway2424 11y agoVery fluffy. Why did they "work around the clock"? Were they trying to beat the Nazis?
- jacquesm 11y agoNo, they were working hard before the machine was put to other uses.