Question

I m looking for some way of using the number-crunching ability of a GPU (with Java perhaps?) in addition to using the multiple cores that the target machine has. I will be working on implementing (at present) the A* Algorithm but in the future I hope to replace it with a Genetic Algorithm of sorts. I ve looked at Project Fortress but as I m building my GUI in JavaFX, I d prefer not to stray too far from a JVM.

Of course, should no feasible solution be available, I will migrate to the easiest solution to implement.

Answer 1

Parallel Colt might be of interest.

Answer 2

If you re interested in HPC with GPUs then perhaps you can look jCuda. This provides Java bindings for CUDA, along with access to CUDA FFT, CUDA BLAS and CUDA DPP. I haven t seen any performance reports on this library so I can t guarantee it will be very good.

Beyond that, I m not really sure. If you re interested in doing this type of stuff as an educational exercise then Java should be good enough, but if you have a serious need for HPC then you re probably going to want to implement in C and use the Java Native Interface to communicate with it.

Answer 3

Morten Nobel Joergensen has a blog post showing how to create a Mandelbrot Set using JOGL - Java Bindings for OpenGL

However if you want generic computing, rather than graphics, then you d be after the Java bindings for OpenCL, from which you can chose from JOCL, or JOCL or JavaCL.

Wikipedia s page shows how OpenCL can be used to compute a fast fourier transform.

Answer 4

Have a look at JPPF, it is a very nice and mature open source Java grid computing environment

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