add configuration and compilation instructions; properly indent a function in example01

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Dakota St. Laurent
2015-06-12 19:00:45 -04:00
parent 1ea82c8b76
commit fd6b886c67
2 changed files with 29 additions and 14 deletions

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# OpenCL basic examples
here is my feeble attempt at learning OpenCL, please don't make fun of me too much :hamburger
here is my feeble attempt at learning OpenCL, please don't make fun of me too much :hamburger:
## Configuration
This currently runs on OS X, and I'm using local header files instead of global header files because I'm unfamiliar with C++. Deal with it. Run the following in a terminal to set up:
```
git clone git@github.com:SaintDako/OpenCL-examples.git
mkdir CL
curl https://www.khronos.org/registry/cl/api/1.2/cl.hpp -o CL/cl.hpp
```
## Compiling
```
clang++ -std=c++0x -framework OpenCL example01.cpp -o example01.out
```
To ignore the deprecation warnings, add the flag `-Wno-deprecated-declarations`.
## example 00
this example is based off of [this example](simpleopencl.blogspot.ca/2013/06/tutorial-simple-start-with-opencl-and-c.html) (example-ception), but it goes a bit further. In the blogspot example, two 10-element vectors are created and a thread is used for each pair of elements. In this example, 10 threads are spawned but two 100-element vectors are used, and it is shown how to split up a specific number of elements per thread.