1 subroutine da_jo_and_grady_sound(iv, re, jo, jo_grad_y)
3 !-----------------------------------------------------------------------
5 !-----------------------------------------------------------------------
9 type (iv_type), intent(in) :: iv ! Innovation vector.
10 type (y_type), intent(in) :: re ! Residual vector.
11 type (y_type), intent(inout) :: jo_grad_y ! Grad_y(Jo)
12 type (jo_type), intent(inout) :: jo ! Obs cost function.
15 ! the following "global" objects are used only when testing
16 type (iv_type) :: iv_glob ! Global Innovation vector (O-B).
17 type (y_type) :: re_glob ! Global Residual vector (O-A).
18 type (y_type) :: jo_grad_y_glob ! Global Grad_y(Jo)
20 if (trace_use_dull) call da_trace_entry("da_jo_and_grady_sound")
27 if (test_dm_exact) then
28 if (iv%info(sound)%ntotal == 0) then
29 if (trace_use_dull) call da_trace_exit("da_jo_and_grady_sound")
33 if (iv%info(sound)%nlocal < 1) then
34 if (trace_use_dull) call da_trace_exit("da_jo_and_grady_sound")
39 do n=1, iv%info(sound)%nlocal
40 do k=1, iv%info(sound)%levels(n)
41 jo_grad_y%sound(n)%u(k) = -re%sound(n)%u(k) / (iv%sound(n)%u(k)%error * iv%sound(n)%u(k)%error)
42 jo_grad_y%sound(n)%v(k) = -re%sound(n)%v(k) / (iv%sound(n)%v(k)%error * iv%sound(n)%v(k)%error)
43 jo_grad_y%sound(n)%t(k) = -re%sound(n)%t(k) / (iv%sound(n)%t(k)%error * iv%sound(n)%t(k)%error)
44 jo_grad_y%sound(n)%q(k) = -re%sound(n)%q(k) / (iv%sound(n)%q(k)%error * iv%sound(n)%q(k)%error)
48 ! Bitwise-exact reduction preserves operation order of serial code for
49 ! testing, at the cost of much-increased run-time. Turn it off when not
50 ! testing. This will always be .false. for a serial or 1-MPI-process run.
51 if (test_dm_exact) then
52 ! collect all obs in serial order and allocate global objects
53 call da_to_global_sound(iv, re, jo_grad_y, iv_glob, re_glob, jo_grad_y_glob)
54 ! perform remaining computations
55 call da_jo_sound_uvtq(iv_glob, re_glob, jo_grad_y_glob, jo)
57 call da_deallocate_global_sound(iv_glob, re_glob, jo_grad_y_glob)
59 ! perform remaining computations
60 call da_jo_sound_uvtq(iv, re, jo_grad_y, jo)
63 jo % sound_u = 0.5 * jo % sound_u
64 jo % sound_v = 0.5 * jo % sound_v
65 jo % sound_t = 0.5 * jo % sound_t
66 jo % sound_q = 0.5 * jo % sound_q
68 if (trace_use_dull) call da_trace_exit("da_jo_and_grady_sound")
70 end subroutine da_jo_and_grady_sound