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Programming

An Open Source Compiler From CUDA To X86-Multicore 71

Posted by timothy from the abstraction-gains-a-layer dept.
Gregory Diamos writes "An open source project, Ocelot, has recently released a just-in-time compiler for CUDA, allowing the same programs to be run on NVIDIA GPUs or x86 CPUs and providing an alternative to OpenCL. A description of the compiler was recently posted on the NVIDIA forums. The compiler works by translating GPU instructions to LLVM and then generating native code for any LLVM target. It has been validated against over 100 CUDA applications. All of the code is available under the New BSD license."
Games

Revisiting the "Holy Trinity" of MMORPG Classes 362

Posted by Soulskill from the or-druid-as-the-case-may-be dept.
A feature at Gamasutra examines one of the foundations of many MMORPGs — the idea that class roles within such a game fall into three basic categories: tank, healer, and damage dealer. The article evaluates the pros and cons of such an arrangement and takes a look at some alternatives. "Eliminating specialized roles means that we do away with boxing a class into a single role. Without Tanks, each class would have features that would help them participate in and survive many different encounters like heavy armor, strong avoidance, or some class or magical abilities that allow them to disengage from direct combat. Without specialized DPS, all classes should be able to do damage in order to defeat enemies. Some classes might specialize in damage type, like area of effect (AoE) damage; others might be able to exploit enemy weaknesses, and some might just be good at swinging a sharpened bit of metal in the right direction at a rapid rate. This design isn't just about having each class able to fill any trinity role. MMO combat would feel more dynamic in this system. Every player would have to react to combat events and defend against attacks."
Media

3D Blu-ray Spec Finalized, PS3 Supported 157

Posted by Soulskill from the but-at-least-one-dimension-will-have-drm dept.
Lucas123 writes "The Blu-ray Disc Association announced today that it has finalized the specification for Blu-ray 3-D discs. The market for 3-D, which includes 3-D enabled televisions, is expected to be $15.8 billion by 2015. Blu-ray 3-D will create a full 1080p resolution image for both eyes using MPEG4-MVC format. Even though two hi-def images are produced, the overhead is typically only 50% compared to equivalent 2D content. The spec also allows PS3 game consoles to play Blu-ray 3-D content. 'The specification also incorporates enhanced graphic features for 3D. These features provide a new experience for users, enabling navigation using 3D graphic menus and displaying 3D subtitles positioned in 3D video.'"
Image

Best Man Rigs Newlyweds' Bed To Tweet During Sex 272

Posted by samzenpus from the nice-feed dept.
When an UK man was asked to be the best man at a friend's wedding he agreed that he would not pull any pranks before or during the ceremony. Now the groom wishes he had extended the agreement to after the blessed occasion as well. The best man snuck into the newlyweds' house while they were away on their honeymoon and placed a pressure-sensitive device under their mattress. The device now automatically tweets when the couple have sex. The updates include the length of activity and how vigorous the act was on a scale of 1-10.
Debian

FreeNAS Switching From FreeBSD To Debian Linux 206

Posted by Soulskill from the changing-horses dept.
dnaumov writes "FreeNAS, a popular, free NAS solution, is moving away from using FreeBSD as its underlying core OS and switching to Debian Linux. Version 0.8 of FreeNAS as well as all further releases are going to be based on Linux, while the FreeBSD-based 0.7 branch of FreeNAS is going into maintenance-only mode, according to main developer Volker Theile. A discussion about the switch, including comments from the developers, can be found on the FreeNAS SourceForge discussion forum. Some users applaud the change, which promises improved hardware compatibility, while others voice concerns regarding the future of their existing setups and lack of ZFS support in Linux."
Input Devices

Typewriters, Computers, and Creating? 227

Posted by kdawson from the no-country-for-old-typewriters dept.
saddleupsancho writes "Today's NY Times reports that Cormac McCarthy is auctioning the 45-year-old Olivetti manual typewriter on which all his novels, screenplays, plays, short stories, and much of his correspondence were written, to benefit the Sante Fe Institute where he is a Research Fellow. What would happen decades from now if, say, Richard Powers or Neal Stephenson attempted to auction their desktops or laptops? Setting aside completely any comparison among the three authors, is there something more intrinsically interesting and valuable, less ephemeral and interchangeable, about a typewriter vs. a computer as an instrument of literary creation? Or is the current generation just as sentimental about their computer-based devices as McCarthy's generation is about his Olivetti? Would you offer as much for McCarthy's input device if it were a generic PC, Mac, or Linux box as you would for his Olivetti?"
Idle

Canadian Blood Services Promotes Pseudoscience 219

Posted by samzenpus from the type-A-negative-personality dept.
trianglecat writes "The not-for-profit agency Canadian Blood Services has a section of their website based on the Japanese cultural belief of ketsueki-gata, which claims that a person's blood group determines or predicts their personality type. Disappointing for a self-proclaimed 'science-based' organization. The Ottawa Skeptics, based in the nation's capital, appear to be taking some action."

Comment Re:copy of information (Score 1) 273

by neomorph (#29249031) Attached to: Homeland Security Changes Laptop Search Policy

True story: after arriving in Canada from the U.S, I was selected for a "special" search. They asked for my laptop, and asked me to enter the login password. I politely declined. I requested to speak to my corporate attorney (via my cell phone) and they refused. They asked again more forcefully, threatening me with arrest if I didn't give in. I gave in. (I'll only go so far to protect my employer's IP).

You should have seen the look on the poor inspector's face when it booted into Linux. He politely asked me how to search for porn on my computer. I taught him the "find" command.

Comment Re:Thank goodness (Score 1) 517

by neomorph (#29061155) Attached to: World's First Formally-Proven OS Kernel

There is nothing in the Common Criteria that specifies that an EAL7 system is "completely secure". It merely indicates that a great deal of evidence exists that the system meets its security function requirements, nothing more, nothing less. In Common Criteria, the actual security function requirements can be extremely weak, but to make EAL 7, a great deal of evidence must be presented to show that the extremely weak requirement was implemented correctly.

Comment Re:Thank goodness (Score 1) 517

by neomorph (#29061131) Attached to: World's First Formally-Proven OS Kernel

The "mathematically irrelevent industry certificate" of which you speak, Common Criteria EAL 6, does require formal analysis, and Integrity did have certain important security properties proved about it. Now, this L4 kernel set a much higher bar, in that it was proven correct, a super-set of what what proved about Integrity.

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