OpenCL and GPU programming Roadmap

Question

i would like to start stating that i know nothing of OpenCL/GPU programming but i am a advanced C# (general .Net) programmer without fear of C++ and i would like to learn OpenCL/GPU programming... my question is... where do i start?!? what should i download?!? is there a way to program OpenCL/GPU on the Visual Studio (on C#)!?! like... hello world stuff... tks all

Answer 1

I'm sorry for being 7 years late. But here is an open source C# gpgpu library to write your own OpenCL kernels:

https://github.com/tugrul512bit/Cekirdekler/wiki/Beginning

and a hello world as tradition:

ClNumberCruncher  gpus= new ClNumberCruncher(
    ClPlatforms.all().devicesAmd().gpus(), @"
         __constant char text[12] = {'h','e','l','l','o',' ','w','o','r','l','d',' '};
         __kernel void hello(__global char * arr)
         {
              printf(text);
         }
    ");
gpus.performanceFeed = true;
ClArray<byte> array = new ClArray<byte>(5,1);
array.compute(gpus, 1, "hello", 5, 1);
array.compute(gpus, 1, "hello", 5, 1);
array.compute(gpus, 1, "hello", 5, 1);

this is the output:

hello world
hello world
hello world
hello worldhello world

Compute-ID: 1  ----- Load Distributions:  [40.0%] - [60.0%] -----------------------------------------------------
Device 0(gddr): Oland                              ||| time: 29.47ms, workitems: 2
Device 1(gddr): gfx804                             ||| time: 29.76ms, workitems: 3
-----------------------------------------------------------------------------------------------------------------

hello worldhello world
hello world
hello world
hello world

Compute-ID: 1  ----- Load Distributions:  [40.0%] - [60.0%] -----------------------------------------------------
Device 0(gddr): Oland                              ||| time: 1.64ms, workitems: 2
Device 1(gddr): gfx804                             ||| time: 1.33ms, workitems: 3
-----------------------------------------------------------------------------------------------------------------

hello worldhello world
hello world
hello world
hello world

Compute-ID: 1  ----- Load Distributions:  [40.0%] - [60.0%] -----------------------------------------------------
Device 0(gddr): Oland                              ||| time: 1.08ms, workitems: 2
Device 1(gddr): gfx804                             ||| time: .87ms, workitems: 3
-----------------------------------------------------------------------------------------------------------------

it can do a bunch of things from pipelining to task pool scheduling.