=== V1 -- One array ===

int* d_pixs;

cudaMalloc((void**)&d_pixs, N * N * 3 * sizeof(int));

kernel_tray << <nblocks, ntpb >> >(pix_col, N, d_pixs);

cudaMemcpy(h_pixs, d_pixs, N * N * 3 * sizeof(int), cudaMemcpyDeviceToHost);

=== V2 -- Occupancy ===