/[lmdze]/trunk/libf/dyn3d/Dissipation/nxgraro2.f
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Contents of /trunk/libf/dyn3d/Dissipation/nxgraro2.f

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Revision 54 - (show annotations)
Tue Dec 6 15:07:04 2011 UTC (12 years, 5 months ago) by guez
Original Path: trunk/libf/dyn3d/nxgraro2.f
File size: 1921 byte(s) 
Removed Numerical Recipes procedure "ran1". Replaced calls to "ran1"
in "inidissip" by calls to intrinsic procedures.

Split file "interface_surf.f90" into a file with a module containing
only variables, "interface_surf", and single-procedure files. Gathered
files into directory "Interface_surf".

Added argument "cdivu" to "gradiv" and "gradiv2", "cdivh" to
"divgrad2" and "divgrad", and "crot" to "nxgraro2" and
"nxgrarot". "dissip" now uses variables "cdivu", "cdivh" and "crot"
from module "inidissip_m", so it can pass them to "gradiv2",
etc. Thanks to this modification, we avoid a circular dependency
betwwen "inidissip.f90" and "gradiv2.f90", etc. The value -1. used by
"gradiv2", for instance, during computation of eigenvalues is not the
value "cdivu" computed by "inidissip".

Extracted procedure "start_inter_3d" from module "startdyn", to its
own module.

In "inidissip", unrolled loop on "ii". I find it clearer now.

Moved variables "matriceun", "matriceus", "matricevn", "matricevs",
"matrinvn" and "matrinvs" from module "parafilt" to module
"inifilr_m". Moved variables "jfiltnu", "jfiltnv", "jfiltsu",
"jfiltsv" from module "coefils" to module "inifilr_m".
1 !
2 ! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/nxgraro2.F,v 1.1.1.1 2004/05/19 12:53:06 lmdzadmin Exp $
3 !
4 SUBROUTINE nxgraro2 (klevel,xcov, ycov, lr, grx, gry, crot )
5 c
6 c P.Le Van .
7 c ***********************************************************
8 c lr
9 c calcul de ( nxgrad (rot) ) du vect. v ....
10 c
11 c xcov et ycov etant les compos. covariantes de v
12 c ***********************************************************
13 c xcov , ycov et lr sont des arguments d'entree pour le s-prog
14 c grx et gry sont des arguments de sortie pour le s-prog
15 c
16 c
17 use dimens_m
18 use paramet_m
19 use filtreg_m, only: filtreg
20 IMPLICIT NONE
21 c
22 c
23 c ...... variables en arguments .......
24 c
25 INTEGER klevel
26 REAL xcov( ip1jmp1,klevel ), ycov( ip1jm,klevel )
27 REAL grx( ip1jmp1,klevel ), gry( ip1jm,klevel )
28 real, intent(in):: crot
29 c
30 c ...... variables locales ........
31 c
32 REAL rot(ip1jm,llm) , signe, nugradrs
33 INTEGER l,ij,iter
34 integer, intent(in):: lr
35 c ........................................................
36 c
37 c
38 c
39 signe = (-1.)**lr
40 nugradrs = signe * crot
41 c
42 CALL SCOPY ( ip1jmp1* klevel, xcov, 1, grx, 1 )
43 CALL SCOPY ( ip1jm * klevel, ycov, 1, gry, 1 )
44 c
45 CALL rotatf ( klevel, grx, gry, rot )
46 c
47 CALL laplacien_rot ( klevel, rot, rot,grx,gry )
48
49 c
50 c ..... Iteration de l'operateur laplacien_rotgam .....
51 c
52 DO iter = 1, lr -2
53 CALL laplacien_rotgam ( klevel, rot, rot )
54 ENDDO
55 c
56 c
57 CALL filtreg( rot, jjm, klevel, 2,1, .FALSE.,1)
58 CALL nxgrad ( klevel, rot, grx, gry )
59 c
60 DO l = 1, klevel
61 DO ij = 1, ip1jm
62 gry( ij,l ) = gry( ij,l ) * nugradrs
63 ENDDO
64 DO ij = 1, ip1jmp1
65 grx( ij,l ) = grx( ij,l ) * nugradrs
66 ENDDO
67 ENDDO
68 c
69 RETURN
70 END
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