I need to draw a pseudorandom number from a uniform distribution on the device. rand() calls the host function. Anyone know how to do this?
There’s been some talk about generating random numbers before:
http://www.google.com/search?hl=en&q=s…amp;btnG=Search
I think this post may be what you are looking for?
http://forums.nvidia.com/index.php?showtop…st&p=438439
Linear congruential generators are already implemented in CUDA
See for example
http://www.amolf.nl/~vanmeel/mdgpu/download.html
Note that the generated random sequence is exactly that of the rand48 algorithm provided by the C standard library, but the implementation has been parallelized in a clever way.
I’ve modified this implementation so that random numbers can be generated, one at a time, within a CUDA device function. The code is attached.
If not, hopefully one of the other posts will help.