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Last change
on this file since 2173 was
774,
checked in by Laurent Fairhead, 17 years ago
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Suite du merge entre la version et la HEAD: quelques modifications de
Yann sur le
LF
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-
Property svn:eol-style set to
native
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Property svn:keywords set to
Author Date Id Revision
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File size:
1.1 KB
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| 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | SUBROUTINE grad(klevel, pg,pgx,pgy ) |
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| 5 | c |
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| 6 | c P. Le Van |
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| 7 | c |
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| 8 | c ****************************************************************** |
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| 9 | c .. calcul des composantes covariantes en x et y du gradient de g |
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| 10 | c |
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| 11 | c ****************************************************************** |
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| 12 | c pg est un argument d'entree pour le s-prog |
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| 13 | c pgx et pgy sont des arguments de sortie pour le s-prog |
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| 14 | c |
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| 15 | IMPLICIT NONE |
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| 16 | c |
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| 17 | #include "dimensions.h" |
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| 18 | #include "paramet.h" |
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| 19 | INTEGER klevel |
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| 20 | REAL pg( ip1jmp1,klevel ) |
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| 21 | REAL pgx( ip1jmp1,klevel ) , pgy( ip1jm,klevel ) |
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| 22 | INTEGER l,ij |
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| 23 | c |
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| 24 | c |
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| 25 | DO 6 l = 1,klevel |
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| 26 | c |
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| 27 | DO 2 ij = 1, ip1jmp1 - 1 |
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| 28 | pgx( ij,l ) = pg( ij +1,l ) - pg( ij,l ) |
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| 29 | 2 CONTINUE |
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| 30 | c |
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| 31 | c .... correction pour pgx(ip1,j,l) .... |
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| 32 | c ... pgx(iip1,j,l)= pgx(1,j,l) .... |
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| 33 | CDIR$ IVDEP |
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| 34 | DO 3 ij = iip1, ip1jmp1, iip1 |
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| 35 | pgx( ij,l ) = pgx( ij -iim,l ) |
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| 36 | 3 CONTINUE |
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| 37 | c |
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| 38 | DO 4 ij = 1,ip1jm |
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| 39 | pgy( ij,l ) = pg( ij,l ) - pg( ij +iip1,l ) |
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| 40 | 4 CONTINUE |
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| 41 | c |
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| 42 | 6 CONTINUE |
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| 43 | RETURN |
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| 44 | END |
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