Comments for The Big Blob http://www.thebigblob.com A blog of blobs Tue, 07 Feb 2012 12:15:52 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on Getting started with OpenCL and GPU Computing by Erik Smistad http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2275 Erik Smistad Tue, 07 Feb 2012 12:15:52 +0000 http://www.thebigblob.com/?p=308#comment-2275 I don't now why you would want to write a function inside a kernel... but you can create a function in OpenCL that is inside the same file as the kernels and then call that function in the kernel (see below). If this is not what you want you may have to use macros or something (like "#define MAX(a,b) a > b ? a : b"). <code> int myFunction() { ... } __kernel void myKernel() { myFunction(); </code> I don’t now why you would want to write a function inside a kernel… but you can create a function in OpenCL that is inside the same file as the kernels and then call that function in the kernel (see below). If this is not what you want you may have to use macros or something (like “#define MAX(a,b) a > b ? a : b”).


int myFunction() {
...
}

__kernel void myKernel() {
myFunction();

]]> Comment on Getting started with OpenCL and GPU Computing by Erik Smistad http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2274 Erik Smistad Tue, 07 Feb 2012 12:11:58 +0000 http://www.thebigblob.com/?p=308#comment-2274 It is because the include line is "#include <CL/cl.h>", but your include path is inside the CL directory. Try this instead: "gcc -I /opt/AMDAPP/include/ main.c -o main.o" It is because the include line is “#include “, but your include path is inside the CL directory. Try this instead: “gcc -I /opt/AMDAPP/include/ main.c -o main.o”

]]> Comment on Using the C++ bindings for OpenCL by Erik Smistad http://www.thebigblob.com/using-the-cpp-bindings-for-opencl/comment-page-1/#comment-2273 Erik Smistad Tue, 07 Feb 2012 12:07:20 +0000 http://www.thebigblob.com/?p=351#comment-2273 Not sure whats wrong. Myabe it could be that it can't find the OpenCL file. Visual studio often puts the binary file in another folder than the source code, so you might have to copy the kernel source code (the .cl file) to the folder with the binary (probably a folder called bin or something). Not sure whats wrong. Myabe it could be that it can’t find the OpenCL file. Visual studio often puts the binary file in another folder than the source code, so you might have to copy the kernel source code (the .cl file) to the folder with the binary (probably a folder called bin or something).

]]> Comment on Getting started with OpenCL and GPU Computing by Ajay http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2272 Ajay Tue, 07 Feb 2012 09:48:17 +0000 http://www.thebigblob.com/?p=308#comment-2272 Hey Erik, Is there a way to write functions inside the opencl kernel? Hey Erik,
Is there a way to write functions inside the opencl kernel?

]]> Comment on Marching Cubes implementation using OpenCL and OpenGL by Henry http://www.thebigblob.com/marching-cubes-implementation-using-opencl-and-opengl/comment-page-1/#comment-2269 Henry Sun, 05 Feb 2012 09:22:44 +0000 http://www.thebigblob.com/?p=524#comment-2269 Can you try this NVIDIA compatible version, in order to verify if it works? i'm doing a "state of the art" for opencl surface reconstruction algorithm and i would appreciate it if you could make this code available. Tks a lot Can you try this NVIDIA compatible version, in order to verify if it works? i’m doing a “state of the art” for opencl surface reconstruction algorithm and i would appreciate it if you could make this code available. Tks a lot

]]> Comment on Using the C++ bindings for OpenCL by Jesse http://www.thebigblob.com/using-the-cpp-bindings-for-opencl/comment-page-1/#comment-2263 Jesse Sat, 04 Feb 2012 00:52:19 +0000 http://www.thebigblob.com/?p=351#comment-2263 I meant it gives the error in Windows under Visual Studio 2010 I meant it gives the error in Windows under Visual Studio 2010

]]> Comment on Using the C++ bindings for OpenCL by Jesse http://www.thebigblob.com/using-the-cpp-bindings-for-opencl/comment-page-1/#comment-2262 Jesse Sat, 04 Feb 2012 00:51:32 +0000 http://www.thebigblob.com/?p=351#comment-2262 Sorry I wasnt very detailed. It runs fine on Ubuntu but doesnt seems to give the error in windows with visual studio. Sorry I wasnt very detailed. It runs fine on Ubuntu but doesnt seems to give the error in windows with visual studio.

]]> Comment on Getting started with OpenCL and GPU Computing by amd nvidia benchmark http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2261 amd nvidia benchmark Fri, 03 Feb 2012 23:32:24 +0000 http://www.thebigblob.com/?p=308#comment-2261 <strong>amd nvidia benchmark...</strong> [...]The Big Blob » Getting started with OpenCL and GPU Computing[...]... amd nvidia benchmark…

[...]The Big Blob » Getting started with OpenCL and GPU Computing[...]…

]]> Comment on Getting started with OpenCL and GPU Computing by José http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2260 José Fri, 03 Feb 2012 23:07:57 +0000 http://www.thebigblob.com/?p=308#comment-2260 <blockquote> <a href="#comment-2259" rel="nofollow"> <strong><em>José:</em></strong> </a> I tried to install and run your example but the answer is that it can’t find the file cl.h What should I look for? I tried to reinstall but it simply don’t want to run. The icd files and the .h are where they are supposed to be. The instalation of the openCL is on the /opt/AMDAPP/ Also, running on a Phenom II 1090T + HD6850 </blockquote> Forgot this information: The comand lines that I used: main.c @ ~/openCL-teste/ comand line used: gcc -I /opt/AMDAPP/include/CL/ main.c -o main.o


José:

I tried to install and run your example but the answer is that it can’t find the file cl.h
What should I look for?
I tried to reinstall but it simply don’t want to run.
The icd files and the .h are where they are supposed to be.
The instalation of the openCL is on the /opt/AMDAPP/
Also, running on a Phenom II 1090T + HD6850

Forgot this information:

The comand lines that I used:

main.c @ ~/openCL-teste/

comand line used:
gcc -I /opt/AMDAPP/include/CL/ main.c -o main.o

]]> Comment on Getting started with OpenCL and GPU Computing by José http://www.thebigblob.com/getting-started-with-opencl-and-gpu-computing/comment-page-1/#comment-2259 José Fri, 03 Feb 2012 23:03:56 +0000 http://www.thebigblob.com/?p=308#comment-2259 I tried to install and run your example but the answer is that it can't find the file cl.h What should I look for? I tried to reinstall but it simply don't want to run. The icd files and the .h are where they are supposed to be. The instalation of the openCL is on the /opt/AMDAPP/ Also, running on a Phenom II 1090T + HD6850 I tried to install and run your example but the answer is that it can’t find the file cl.h

What should I look for?

I tried to reinstall but it simply don’t want to run.

The icd files and the .h are where they are supposed to be.

The instalation of the openCL is on the /opt/AMDAPP/

Also, running on a Phenom II 1090T + HD6850

]]>