code: public static int cusolverRfResetValues(
          int n, 
          int nnzA, 
          Pointer csrRowPtrA, 
          Pointer csrColIndA, 
          Pointer csrValA, 
          Pointer P, 
          Pointer Q, 
          /** Output */
          cusolverRfHandle handle)
      {
          return checkResult(cusolverRfResetValuesNative(n, nnzA, csrRowPtrA, csrColIndA, csrValA, P, Q, handle));
      }
docs: CUSOLVERRF update the matrix values (assuming the reordering, pivoting
  and consequently the sparsity pattern of L and U did not change),
  and zero out the remaining values.