/[MITgcm]/MITgcm/optim/optim_sub.F
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Revision 1.2 - (show annotations) (download)
Fri Nov 15 04:03:25 2002 UTC (22 years, 1 month ago) by heimbach
Branch: MAIN
CVS Tags: checkpoint51k_post, checkpoint47e_post, checkpoint52l_pre, hrcube4, hrcube5, checkpoint47c_post, checkpoint50c_post, checkpoint52d_pre, checkpoint48e_post, checkpoint56b_post, checkpoint50c_pre, checkpoint52j_pre, checkpoint51o_pre, checkpoint54d_post, checkpoint54e_post, checkpoint51l_post, checkpoint48i_post, checkpoint50d_pre, checkpoint52k_post, checkpoint55, checkpoint54, checkpoint56, checkpoint51, checkpoint50, checkpoint53, checkpoint52, checkpoint50d_post, checkpoint52f_post, checkpoint50b_pre, checkpoint54f_post, checkpoint51f_post, checkpoint48b_post, checkpoint51d_post, checkpoint48c_pre, checkpoint47d_pre, checkpoint51t_post, checkpoint51n_post, checkpoint55i_post, checkpoint52i_pre, hrcube_1, hrcube_2, hrcube_3, checkpoint51s_post, checkpoint47a_post, checkpoint55c_post, checkpoint48d_pre, checkpoint51j_post, checkpoint47i_post, checkpoint52e_pre, checkpoint52e_post, checkpoint51n_pre, checkpoint47d_post, checkpoint53d_post, checkpoint48d_post, checkpoint48f_post, checkpoint52b_pre, checkpoint54b_post, checkpoint51l_pre, checkpoint52m_post, checkpoint55g_post, checkpoint48h_post, checkpoint51q_post, checkpoint51b_pre, checkpoint47g_post, checkpoint52b_post, checkpoint52c_post, checkpoint51h_pre, checkpoint48a_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint52f_pre, checkpoint55d_post, checkpoint47j_post, checkpoint54a_pre, checkpoint53c_post, checkpoint55d_pre, checkpoint55j_post, branch-exfmods-tag, branchpoint-genmake2, checkpoint54a_post, checkpoint55h_post, checkpoint51r_post, checkpoint48c_post, checkpoint51i_post, checkpoint55b_post, checkpoint51b_post, checkpoint51c_post, checkpoint53a_post, checkpoint47b_post, checkpoint55f_post, checkpoint52d_post, checkpoint53g_post, checkpoint50g_post, checkpoint52a_pre, checkpoint50h_post, checkpoint52i_post, checkpoint50e_pre, checkpoint50i_post, checkpoint51i_pre, checkpoint52h_pre, checkpoint56a_post, checkpoint53f_post, checkpoint52j_post, checkpoint47f_post, checkpoint50e_post, branch-netcdf, checkpoint52l_post, checkpoint52n_post, checkpoint53b_pre, checkpoint51e_post, checkpoint55a_post, checkpoint47, checkpoint48, checkpoint49, checkpoint51o_post, checkpoint51f_pre, checkpoint48g_post, checkpoint53b_post, checkpoint47h_post, checkpoint52a_post, checkpoint51g_post, ecco_c52_e35, checkpoint50b_post, checkpoint51m_post, checkpoint53d_pre, checkpoint55e_post, checkpoint54c_post, checkpoint51a_post, checkpoint51p_post, checkpoint51u_post
Branch point for: branch-exfmods-curt, branch-genmake2, branch-nonh, tg2-branch, netcdf-sm0, checkpoint51n_branch
Changes since 1.1: +128 -0 lines 
o Incorporating QNVS line search routines into MITgcm
  (this is separate code, not compiled with MITgcm,
  and therefore not under pkg)
  - lsopt/
  - optim/
1
2
3 subroutine optim_sub(
4 I nn
5 & )
6
7 c ==================================================================
8 c SUBROUTINE optim_sub
9 c ==================================================================
10 c
11 c o Initialization of optimization run.
12 c
13 c started: Christian Eckert eckert@mit.edu 15-Feb-2000
14 c
15 c changed: Christian Eckert eckert@mit.edu 10-Mar-2000
16 c
17 c - Added ECCO layout.
18 c
19 c changed: Patrick Heimbach heimbach@mit.edu 19-Jun-2000
20 c - finished, revised and debugged
21 c
22 c ==================================================================
23 c SUBROUTINE optim_sub
24 c ==================================================================
25
26 implicit none
27
28 c == global variables ==
29
30 #include "EEPARAMS.h"
31 #include "SIZE.h"
32
33 #include "ecco.h"
34 #include "ctrl.h"
35 #include "optim.h"
36
37 c == routine arguments ==
38
39 integer nn
40
41 c == local variables ==
42
43 _RL objf
44
45 #if defined (DYNAMIC)
46 _RL xx(nn)
47 _RL adxx(nn)
48 _RL dd(nn)
49 _RL gold(nn)
50 _RL xdiff(nn)
51 #elif defined (USE_POINTER) || (MAX_INDEPEND == 0)
52 _RL xx
53 _RL adxx
54 _RL dd(1)
55 _RL gold(1)
56 _RL xdiff(1)
57 pointer (pxx,xx(1))
58 pointer (padxx,adxx(1))
59 pointer (pdd,dd)
60 pointer (pgold,gold)
61 pointer (pxdiff,xdiff)
62 #else
63 integer nmax
64 parameter( nmax = MAX_INDEPEND )
65 _RL xx(nmax)
66 _RL adxx(nmax)
67 _RL dd(nmax)
68 _RL gold(nmax)
69 _RL xdiff(nmax)
70 #endif
71
72 c-- Allocate memory for the control variables and the gradient vector.
73 #if defined(DYNAMIC)
74 #elif defined(USE_POINTER) || (MAX_INDEPEND == 0)
75 call myalloc( pxx , nn*REAL_BYTE )
76 call myalloc( padxx, nn*REAL_BYTE )
77 call myalloc( pdd, nn*REAL_BYTE )
78 call myalloc( pgold, nn*REAL_BYTE )
79 call myalloc( pxdiff, nn*REAL_BYTE )
80 #endif
81
82 integer ifail
83 integer itmax
84 logical loffline
85
86 c == external ==
87
88 external simul
89 external lsline
90
91 c == end of interface ==
92
93 c-- Initialisize the model and set a first guess of the control
94 c-- variables.
95 call optim_initmod( nn, xx )
96
97 #if defined (DYNAMIC)
98 #elif defined(USE_POINTER) || (MAX_INDEPEND == 0)
99 #else
100 if (nn .gt. nmax) then
101 print*,' OPTIMUM: Not enough space.'
102 print*,' nmax = ',nmax
103 print*,' nn = ',nn
104 print*
105 print*,' Set MAX_INDEPEND in Makefile .ge. ',nn
106 print*
107 stop ' ... stopped in OPTIMUM.'
108 endif
109 #endif
110
111 print*, ' OPTIMUM: Calling lsopt for iteration: ',optimcycle
112 print*, ' OPTIMUM: with nn, REAL_BYTE = ', nn, REAL_BYTE
113
114 loffline = .true.
115 itmax = numiter
116
117 c-- Large scale optimization --> Gilbert & Lemarechal.
118 call lsopt_top( nn, xx, objf, adxx
119 & , simul, lsline
120 & , epsx, fmin, epsg
121 & , iprint
122 & , itmax, nfunc, nupdate
123 & , dd, gold, xdiff
124 & , loffline
125 & , ifail )
126
127 return
128 end
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