OpenCL "Hello World"(developer.apple.com)

32 pointsby pieter17 lat temu19 comments

developer.apple.com

http://developer.apple.com/mac/library/documentation/Performance/Conceptual/OpenCL_MacProgGuide/Example:Hello,World/Example:Hello,World.html

5 comments

[deleted]17 lat temu

(3)

hypermatt17 lat temu

I can't wait to see some useful applications of this.

spitfire17 lat temu

So am I.

But my second thought was "Oh my GOD, how many pages of text for a single loop to run?". I'm sure they'll improve the api (with a wrapper layer), but right now OpenCL will only be used by the more demanding of applications.

EDIT: Maybe that sounded wrong. For huge classes of problems this isn't an issue, but to really pull that power down to the everyday developer, an easier wrapper api will be needed.

I can see spreadsheets using this stuff, but not as it stands now. On the other hand a gpgpu raytracer could use opencl as it stands now.

eru17 lat temu

Why not spreadsheets? The end-user would not be bothered with this stuff.

ncarlson17 lat temu

New drugs have been designed for a few years now using GPU computing.

JBiserkov17 lat temu

New drugs may be required so programmers won't notice the monstrosities going on.

What's the deal with const char *KernelSource = HUGE_MULTILINE_STRING_WITH_EXPLICIT_\n ???

Its worse than SQL statements embedded inside GUI event handlers.

ncarlson17 lat temu

It's very similar to OpenGL actually. I can't defend their choice of syntax, but at least they're consistant.

wlievens17 lat temu

That depends on the language bindings, I guess. In a language with first class expression trees (like s-expressions) you could do this cleanly.

rbanffy17 lat temu

I can't wait for support in other languages.

eworoshow17 lat temu

Khronos is working on C++ bindings. But having the core API in pure C should make adding bindings to other languages a (relatively) easy thing to do.

UncleOxidant17 lat temu

I can't wait for a nice DSL that will generate this boilerplate code for you...

rbanffy17 lat temu

No no! Wrong approach. You want the DSL to run your code, not to generate code you can't hope to understand.

ruslan17 lat temu

Nobody can beat this masterpiece of classics:

int main(void) { printf("Hello, world!\n"); return 0; }

derefr17 lat temu

Maybe not in terms of execution time, but in maintainability and set-up time, nothing beats:

    echo Hello, world!

slava_pestov17 lat temu

So how does Ruby's performance on vector code compare with OpenCL?

zandorg17 lat temu

Yes, but what about: void main(void) { printf("Hello, world!\n"); }

;-)

electronslave17 lat temu

Hello boilerplate.