QuasiMonteCarlo methds on multiple GPUs

Hi,
I’m developing some programs on MonteCarlo and QuasiMonteCarlo methods in CUDA and I would like to make them use more than one GPU. Right now I am using the code in samples/4_Finance/SobolQRNG on one GPU for the generation of QMC sequences, but I don’t see how this code could work on several GPUs.

Is there a way to set a kind of “seed” in this generator, in order to sample (say) the first one million Sobol’s numbers on one GPU, and the second million on the other GPU?

Thanks.