Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror
×
Supercomputing

eBay Makes Huge Gains In Parallel Efficiency 47

CurtMonash writes "Parallel Efficiency is a simple metric that divides the actual work your parallel CPUs do by the sum of their total capacity. If you can get your parallel efficiency up, it's like getting free servers, free floor space, and some free power as well. eBay reports that it amazed even itself by increasing overall PE from 50% to 80% in about 6 months — across tens of thousands of servers. The secret sauce was data warehouse-based analytics. I.e., eBay instrumented its own network to do minute-by-minute status checks, then crunched the resulting data to find bottlenecks that needed removing. Obviously, savings are in the many millions of dollars. eBay has been offering some glimpses into its analytic efforts this year, and the PE savings are one of the most concrete examples they're offering to validate all this analytic cleverness."
The Gimp

First Looks at The Gimp 2.5 446

desmondhaynes writes "The GIMP team announced today the first release from the 2.5 development series. It is true that this version is unstable, but a little bird told me to give it a try and see what's it capable of. First of all, let me tell you that its interface is quite redesigned and I think that some users will have problems adjusting with it, but that's just my two cents. On the other hand, version 2.5.0 of The GIMP includes some hot new features, like the integration of GEGL (Generic Graphics Library) which will finally get support for higher color depths, more colorspaces and eventually non-destructive editing."
Mars

Chance for a Tunguska Sized Impact on Mars 184

Multiple users have written to tell us of an LA Times report that an asteroid may hit Mars on January 30th. The asteroid is roughly 160 feet across, and JPL-based researchers say that it will have a 1-in-75 chance of striking Mars. Those odds are very high for this type of event, and scientists are hoping to witness an impact of a similar scope to the Tunguska disaster. From the LA Times: "Because scientists have never observed an asteroid impact -- the closest thing being the 1994 collision of comet Shoemaker-Levy with Jupiter -- such a collision on Mars would produce a 'scientific bonanza,' Chesley said."
Science

Creationists Violating Copyright 635

The_Rook writes "The Discovery Institute, more a lawyer mill than a scientific institution, copied Harvard University's BioVisions video 'The Inner Life of the Cell,' stripped out Harvard's copyright notice, credits, and narration, inserted their own creationist-friendly narration, and renamed the video 'The Cell As an Automated City.' The new title subtly suggests that a cell is designed rather than evolved."
Power

The Nuclear Power Renaissance 927

Actual Reality writes "It is ironic to me that much of the same sentiment that thwarted the nuclear power industry back in the 80's is partially responsible for reviving it. Nuclear power is very clean compared to any power source that burns fuel. The US has missed several advancements in nuclear technology. We can only hope that environmental concerns will not again stifle our progress."
Google

Google Partners With OIN For Linux 67

lymeca writes "Groklaw reports that Google has become the Open Invention Network's first end-user licensee. The OIN was established by companies such as IBM, Red Hat, and somewhat ironically Novell to accumulate patents and license them royalty-free to any company promising not to leverage their own patent portfolio against key applications available on GNU/Linux, including many GNU projects as well as Linux itself. Google's support bolsters the OIN's effectiveness as a shield against patent attacks against GNU/Linux and many popular applications that run on it."

Slashdot Top Deals

For God's sake, stop researching for a while and begin to think!

Working...