Error in Sobol direction vectors in curand curandGetDirectionVectors32 failing at runtime

Accelerated Computing CUDA CUDA Programming and Performance
1

Hi,

I’m trying to use curand by following the sample code in EstimatePiInlineQ, but I’d like to do the curand_init on each thread without storing the states in the global memory as it is done in the sample. However, that does not seem to work as I get a Runtime API error. When I do the same thing with XORWOW instead of Sobol, it runs.

Here is the code

    int dimension = 0;
    int tid = the_thread_id; 
    
    curandStateSobol32_t rngstate;
    curand_init(d_rngDirections[dimension], tid, &rngstate); // d_rngDirections contains the direction vectors

    float gaussian = curand_uniform(&rngstate);