NVIDIA Shaking Up the Parallel Programming World

An anonymous reader writes "NVIDIA's CUDA system, originally developed for their graphics cores, is finding migratory uses into other massively parallel computing applications. As a result, it might not be a CPU designer that ultimately winds up solving the massively parallel programming challenges, but rather a video card vendor. From the article: 'The concept of writing individual programs which run on multiple cores is called multi-threading. That basically means that more than one part of the program is running at the same time, but on different cores. While this might seem like a trivial thing, there are all kinds of issues which arise. Suppose you are writing a gaming engine and there must be coordination between the location of the characters in the 3D world, coupled to their movements, coupled to the audio. All of that has to be synchronized. What if the developer gives the character movement tasks its own thread, but it can only be rendered at 400 fps. And the developer gives the 3D world drawer its own thread, but it can only be rendered at 60 fps. There's a lot of waiting by the audio and character threads until everything catches up. That's called synchronization.'"

need some brains

[conan1989]

where's the MIT CS guys when you need them?

Dumbing down

[mrbluze]

'The concept of writing individual programs which run on multiple cores is called multi-threading. That basically means that more than one part of the program is running at the same time, but on different cores.

Wow, I bet nobody on slashdot knew that!

Re:need some brains

[JamesRose]

Leave them a post it, they'll get back to you ;)

Thats..

[mastershake_phd]

There's a lot of waiting by the audio and character threads until everything catches up. That's called synchronization.

That's called wasted CPU cycles.

Re:Dumbing down

[Kawahee]

Slow down cowboy, not all of us are as cluey as you. It didn't come together for me until the last sentence!

There's a lot of waiting by the audio and character threads until everything catches up. That's called synchronization

Re:Where's the story?

[alex4u2nv]

I sense a race condition developing