ManyBodySpinSpace_GPUtest.cu File Reference

Functions
__global__ void	createManyBodySpinSpace_kernel (ManyBodySpinSpace **ptrptr, int sysSize, int dimLoc)
int	main (int argc, char **argv)

Function Documentation

createManyBodySpinSpace_kernel()

__global__ void createManyBodySpinSpace_kernel	(	ManyBodySpinSpace **	ptrptr,
		int	sysSize,
		int	dimLoc
	)

                                                              {
    int const idx = blockIdx.x * blockDim.x + threadIdx.x;
    if(idx > 1) return;
    *ptrptr = new ManyBodySpinSpace(sysSize, dimLoc);
    debug_printf(
        "%s:\n\t sysSize =%d,dimLoc=%d\n\t Created a ManyBodySpinSpace object at ptr=%p\n ",
        __PRETTY_FUNCTION__, sysSize, dimLoc, *ptrptr);
}

main()

int main	(	int	argc,
		char **	argv
	)

                                {
    if(argc != 3) {
        std::cerr << "Usage: 1.(This) 2.(sysSize) 3.(dimLoc)\n"
                  << "       argc=" << argc << std::endl;
        std::exit(EXIT_FAILURE);
    }
    int const sysSize = std::atoi(argv[1]);
    int const dimLoc  = std::atoi(argv[2]);
 
    ManyBodySpinSpace** ptrTo_dPtr = nullptr;
    cuCHECK(cudaMalloc((void***)&ptrTo_dPtr, sizeof(ManyBodySpinSpace**)));
    createManyBodySpinSpace_kernel<<<1, 1>>>(ptrTo_dPtr, sysSize, dimLoc);
    cuCHECK(cudaGetLastError());
    cuCHECK(cudaDeviceSynchronize());
 
    ManyBodySpinSpace* dPtr;
    cuCHECK(cudaMemcpy(&dPtr, ptrTo_dPtr, sizeof(ManyBodySpinSpace*), cudaMemcpyDeviceToHost));
    cuCHECK(cudaFree(ptrTo_dPtr));
    std::cout << "dPtr=" << dPtr << std::endl;
 
    testManyBodySpaceBase_kernel<<<1, 1>>>(dPtr);
    cuCHECK(cudaGetLastError());
    cuCHECK(cudaDeviceSynchronize());
    std::cout << "Passed \"testManyBodySpaceBase_kernel\"\n" << std::endl;
 
    return EXIT_SUCCESS;
}