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Comment: Re:Does it really matter? (Score 2) 238

by Victor Liu (#43825605) Attached to: ARM In Supercomputers — 'Get Ready For the Change'
On the point or portability, there's then a distinction of your focus. If you do research on numerical methods, then yes, you would write highly optimized code for a particular machine, as an end in and of itself. I myself am merely a user, and our research group does not have the expertise to write such optimized code. We pay for time on supercomputing clusters, which constantly bring online new machines and retire old ones. Every year our subscription can change, and we are allowed to use resources on different computers. Therefore, from my standpoint, portability is very important. Otherwise, if we were to write our own code in-house, we basically have a 1 year (ok, fine, maybe 2 or 3 year) window in which to develop, test, and run it. It just doesn't seem worthwhile to spend so much effort developing a one-time use piece of code. I'd rather write something which will outlive my stay in the research program.

Comment: Re:Does it really matter? (Score 5, Informative) 238

by Victor Liu (#43825303) Attached to: ARM In Supercomputers — 'Get Ready For the Change'
As someone who does heavy duty scientific computing, I wouldn't say that "most" of the actual process power is in GPUs. They are certainly more powerful at certain tasks, but most applications run are legacy code, and most algorithms require substantial reworking to get them to run with reasonable performance on a GPU. Simply put, GPU for supercomputing is not quite a mature technology yet. I am personally not too interested in coding for GPUs simply because the code is not portable enough yet, and by the time the technology might be mature, there might be a new wave of technology (like ARM) that could be easier to work with.
Science

+ - The Physics of a Rolling Rubber Band->

Submitted by sciencehabit
sciencehabit (1205606) writes "Modern physics can get complicated. Sure, researchers know exactly what forces act on a ball rolling down an incline—an experiment that helped Galileo develop universal laws for movement and acceleration. But what happens when a deformable shape like a rubber band rolls around? A new study reveals that the faster it goes, the more squashed it gets. (Video included)"
Link to Original Source

Comment: Re:OpenGL and the rant about marketing (Score 2, Insightful) 515

by Victor Liu (#30701550) Attached to: Why You Should Use OpenGL and Not DirectX
This is not entirely true for a framework like OpenGL. You surely can add your own features or improve performance on your end, but these changes must be incorporated into graphics card drivers by vendors in order to have a wide audience. This is where it helps to have the industry clout that Microsoft does (not that this is necessarily a good thing, but they have the power to push through changes into hardware using their DirectX specs).
Idle

Hand Written Clock 86

Posted by samzenpus
from the up-to-the-minute dept.
a3buster writes "This clock does not actually have a man inside, but a flatscreen that plays a 24-hour loop of this video by the artist watching his own clock somewhere and painstakingly erasing and re-writing each minute. This video was taken at Design Miami during Art Basel Miami Beach 2009."
Politics

+ - Obama wins Nobel Peace Prize-> 3

Submitted by
AbbeyRoad
AbbeyRoad writes "OSLO (Reuters) — U.S. President Barack Obama won the Nobel Peace Prize on Friday for giving the world "hope for a better future" and striving for nuclear disarmament. ... The Norwegian Nobel Committee praised Obama for "his extraordinary efforts to strengthen international diplomacy and cooperation between peoples.""
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"Those who will be able to conquer software will be able to conquer the world." -- Tadahiro Sekimoto, president, NEC Corp.

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