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Intel Programming Games News

River Trail — Intel's Parallel JavaScript 134

Posted by Soulskill
from the perpendicular-javascript-coming-soon dept.
mikejuk writes "Intel has just announced River Trail, an extension of JavaScript that brings parallel programming into the browser. The code looks like JavaScript and it works with HTML5, including Canvas and WebGL, so 2D and 3D graphics are easy. A demo video shows an in-browser simulation going from 3 to 45 fps and using all eight cores of the processor. This is the sort of performance needed if 3D in-browser games are going to be practical. You can download River Trail as a Firefox add-on and start coding now. Who needs native code?"
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River Trail — Intel's Parallel JavaScript

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  • by TheRaven64 (641858) on Friday September 16, 2011 @04:02PM (#37423846) Journal

    Not entirely. One of the features of Sun's cancelled Rock CPU was something they called Thread Scout. The idea was to run one core ahead of another, skipping most computation, to pre-fault memory addresses. This ensured that data was in cache when it was needed. There was also an idea to use multiple cores to extend the superscalar concept, so when you encountered a branch one core took each potential path and you discarded the wrong one. A lot of GPUs used to do this, but no general purpose CPUs (that I'm aware of, although ARM and Itanium do something similar with their predicated instructions).

    You're right that you won't get the full benefit of writing proper concurrent code, but you will get some.

  • Oh boy!!! (Score:5, Insightful)

    by frank_adrian314159 (469671) on Friday September 16, 2011 @04:32PM (#37424162) Homepage

    That means the animated ads can now suck up all of my CPU, rather than just one core's worth. I can't wait!

  • by devent (1627873) on Friday September 16, 2011 @04:34PM (#37424176) Homepage

    Instead of get a 50$ graphics card and play Doom3 on it, we need now 8 cores CPU to play JavaScript games in the browser? That is the bright future we can look for with ChromeOS and "the browser is the OS" future?

  • by sunfly (1248694) on Friday September 16, 2011 @04:49PM (#37424264)

    Why should an application decide the best way to split a load over multiple cpu cores? How does it know what else is going on in the OS to balance this load? Shouldn't the OS handle this behind the scenes?

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