Step 2 (forward): X paired even/odd split X is dim2 (thread i). Only i in [2, nx/2+1] executes. Writes to i and nx-i+2. Race-free (pair doesn't enter).
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| complex(kind=dp), | intent(inout), | device, dimension(:, :, :) | :: | div_u | ||
| integer, | intent(in), | value | :: | nz_h | ||
| integer, | intent(in), | value | :: | nx | ||
| integer, | intent(in), | value | :: | ny | ||
| integer, | intent(in), | value | :: | x_sp_st | ||
| real(kind=dp), | intent(in), | device, dimension(:) | :: | ax | ||
| real(kind=dp), | intent(in), | device, dimension(:) | :: | bx |