Invalid device symbol when copying to CUDA constant memory

Question

I have several files for an app in image processing. As the number of rows and colums for an image does not change while doing some image processing algorithm I was trying t

Answer 1

If your symbol is declared like this:

__constant__ int c_rows;

then the correct call to cudaMemcpyToSymbol is just

int rows = 5;
cudaMemcpyToSymbol(c_rows, &rows, sizeof(int)));