Mathematica plug-in for CUDA

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Since there is a Matlab plug-in for CUDA that provides some examples of off-loading computation to the GPU, I thought it might be neat to have something similar for Mathematica. So as a start, I decided to try out a simple scalar product example using MathLink.

The initial template of my function is in the file:

which describes the ScalarProd[] function in Mathematica, and links it to the scalarProd() C method, which is where we receive the two arrays from Mathematica and use CUDA to calculate their scalar product and send the result back. This and the main() function for Linux and Mac, which is what I was using, are in the file. Note that Windows has a slightly different main() method.

and in the same we now include the kernel from CUDA’s SDK together with our scalarProd() C function:

Now we are ready to run Mathematica’s mprep pre-processor from MathLink to generate a file, and on this we run CUDA’s compiler nvcc and compile everything with the appropriate CUDA and MathLink libraries to generate our scalarProd binary, which we can now call from within Mathematica:

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