| [1591] | 1 | ! |
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| [1685] | 2 | ! $Id$ |
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| [1591] | 3 | ! |
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| [1108] | 4 | MODULE filtreg_mod |
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| [1086] | 5 | |
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| 6 | REAL, DIMENSION(:,:,:), ALLOCATABLE :: matriceun,matriceus,matricevn |
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| 7 | REAL, DIMENSION(:,:,:), ALLOCATABLE :: matricevs,matrinvn,matrinvs |
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| 8 | |
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| 9 | CONTAINS |
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| 10 | |
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| 11 | SUBROUTINE inifilr |
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| [1685] | 12 | USE mod_filtre_fft, ONLY : use_filtre_fft,Init_filtre_fft |
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| 13 | USE mod_filtre_fft_loc, ONLY : Init_filtre_fft_loc=>Init_filtre_fft ! |
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| [1086] | 14 | ! ... H. Upadhyaya, O.Sharma ... |
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| 15 | ! |
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| 16 | IMPLICIT NONE |
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| 17 | ! |
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| 18 | ! version 3 ..... |
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| 19 | |
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| 20 | ! Correction le 28/10/97 P. Le Van . |
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| 21 | ! ------------------------------------------------------------------- |
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| 22 | #include "dimensions.h" |
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| 23 | #include "paramet.h" |
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| 24 | ! ------------------------------------------------------------------- |
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| 25 | #include "comgeom.h" |
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| 26 | #include "coefils.h" |
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| 27 | #include "logic.h" |
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| 28 | #include "serre.h" |
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| 29 | |
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| 30 | REAL dlonu(iim),dlatu(jjm) |
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| 31 | REAL rlamda( iim ), eignvl( iim ) |
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| 32 | ! |
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| 33 | |
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| 34 | REAL lamdamax,pi,cof |
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| 35 | INTEGER i,j,modemax,imx,k,kf,ii |
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| 36 | REAL dymin,dxmin,colat0 |
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| 37 | REAL eignft(iim,iim), coff |
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| 38 | |
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| 39 | LOGICAL, SAVE :: first_call_inifilr = .TRUE. |
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| 40 | |
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| 41 | #ifdef CRAY |
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| 42 | INTEGER ISMIN |
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| 43 | EXTERNAL ISMIN |
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| 44 | INTEGER iymin |
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| 45 | INTEGER ixmineq |
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| 46 | #endif |
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| 47 | ! |
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| 48 | ! ------------------------------------------------------------ |
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| 49 | ! This routine computes the eigenfunctions of the laplacien |
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| 50 | ! on the stretched grid, and the filtering coefficients |
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| 51 | ! |
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| 52 | ! We designate: |
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| 53 | ! eignfn eigenfunctions of the discrete laplacien |
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| 54 | ! eigenvl eigenvalues |
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| 55 | ! jfiltn indexof the last scalar line filtered in NH |
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| 56 | ! jfilts index of the first line filtered in SH |
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| 57 | ! modfrst index of the mode from WHERE modes are filtered |
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| 58 | ! modemax maximum number of modes ( im ) |
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| 59 | ! coefil filtering coefficients ( lamda_max*COS(rlat)/lamda ) |
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| 60 | ! sdd SQRT( dx ) |
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| 61 | ! |
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| 62 | ! the modes are filtered from modfrst to modemax |
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| 63 | ! |
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| 64 | !----------------------------------------------------------- |
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| 65 | ! |
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| 66 | |
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| 67 | pi = 2. * ASIN( 1. ) |
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| 68 | |
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| 69 | DO i = 1,iim |
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| 70 | dlonu(i) = xprimu( i ) |
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| 71 | ENDDO |
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| 72 | ! |
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| 73 | CALL inifgn(eignvl) |
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| 74 | ! |
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| [1591] | 75 | PRINT *,'inifilr: EIGNVL ' |
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| [1086] | 76 | PRINT 250,eignvl |
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| [1591] | 77 | 250 FORMAT( 1x,5e14.6) |
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| [1086] | 78 | ! |
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| 79 | ! compute eigenvalues and eigenfunctions |
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| 80 | ! |
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| 81 | ! |
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| 82 | !................................................................. |
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| 83 | ! |
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| 84 | ! compute the filtering coefficients for scalar lines and |
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| 85 | ! meridional wind v-lines |
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| 86 | ! |
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| 87 | ! we filter all those latitude lines WHERE coefil < 1 |
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| 88 | ! NO FILTERING AT POLES |
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| 89 | ! |
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| 90 | ! colat0 is to be used when alpha (stretching coefficient) |
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| 91 | ! is set equal to zero for the regular grid CASE |
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| 92 | ! |
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| 93 | ! ....... Calcul de colat0 ......... |
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| 94 | ! ..... colat0 = minimum de ( 0.5, min dy/ min dx ) ... |
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| 95 | ! |
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| 96 | ! |
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| 97 | DO j = 1,jjm |
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| 98 | dlatu( j ) = rlatu( j ) - rlatu( j+1 ) |
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| 99 | ENDDO |
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| 100 | ! |
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| 101 | #ifdef CRAY |
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| 102 | iymin = ISMIN( jjm, dlatu, 1 ) |
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| 103 | ixmineq = ISMIN( iim, dlonu, 1 ) |
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| 104 | dymin = dlatu( iymin ) |
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| 105 | dxmin = dlonu( ixmineq ) |
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| 106 | #else |
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| 107 | dxmin = dlonu(1) |
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| 108 | DO i = 2, iim |
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| 109 | dxmin = MIN( dxmin,dlonu(i) ) |
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| 110 | ENDDO |
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| 111 | dymin = dlatu(1) |
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| 112 | DO j = 2, jjm |
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| 113 | dymin = MIN( dymin,dlatu(j) ) |
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| 114 | ENDDO |
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| 115 | #endif |
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| 116 | ! |
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| [1591] | 117 | ! For a regular grid, we want the filter to start at latitudes |
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| 118 | ! corresponding to lengths dx of the same size as dy (in terms |
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| 119 | ! of angles: dx=2*dy) => at colat0=0.5 (i.e. colatitude=30 degrees |
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| 120 | ! <=> latitude=60 degrees). |
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| 121 | ! Same idea for the zoomed grid: start filtering polewards as soon |
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| 122 | ! as length dx becomes of the same size as dy |
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| [1086] | 123 | ! |
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| 124 | colat0 = MIN( 0.5, dymin/dxmin ) |
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| 125 | ! |
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| 126 | IF( .NOT.fxyhypb.AND.ysinus ) THEN |
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| 127 | colat0 = 0.6 |
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| 128 | ! ...... a revoir pour ysinus ! ....... |
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| 129 | alphax = 0. |
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| 130 | ENDIF |
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| 131 | ! |
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| 132 | PRINT 50, colat0,alphax |
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| 133 | 50 FORMAT(/15x,' Inifilr colat0 alphax ',2e16.7) |
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| 134 | ! |
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| 135 | IF(alphax.EQ.1. ) THEN |
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| 136 | PRINT *,' Inifilr alphax doit etre < a 1. Corriger ' |
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| 137 | STOP |
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| 138 | ENDIF |
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| 139 | ! |
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| 140 | lamdamax = iim / ( pi * colat0 * ( 1. - alphax ) ) |
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| 141 | |
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| 142 | ! ... Correction le 28/10/97 ( P.Le Van ) .. |
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| 143 | ! |
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| 144 | DO i = 2,iim |
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| 145 | rlamda( i ) = lamdamax/ SQRT( ABS( eignvl(i) ) ) |
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| 146 | ENDDO |
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| 147 | ! |
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| 148 | |
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| 149 | DO j = 1,jjm |
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| 150 | DO i = 1,iim |
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| 151 | coefilu( i,j ) = 0.0 |
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| 152 | coefilv( i,j ) = 0.0 |
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| 153 | coefilu2( i,j ) = 0.0 |
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| 154 | coefilv2( i,j ) = 0.0 |
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| 155 | ENDDO |
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| 156 | ENDDO |
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| 157 | |
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| 158 | ! |
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| 159 | ! ... Determination de jfiltnu,jfiltnv,jfiltsu,jfiltsv .... |
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| 160 | ! ......................................................... |
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| 161 | ! |
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| 162 | modemax = iim |
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| 163 | |
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| 164 | !!!! imx = modemax - 4 * (modemax/iim) |
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| 165 | |
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| 166 | imx = iim |
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| 167 | ! |
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| [1591] | 168 | PRINT *,'inifilr: TRUNCATION AT ',imx |
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| [1086] | 169 | ! |
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| [1591] | 170 | ! Ehouarn: set up some defaults |
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| 171 | jfiltnu=2 ! avoid north pole |
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| 172 | jfiltsu=jjm ! avoid south pole (which is at jjm+1) |
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| 173 | jfiltnv=1 ! NB: no poles on the V grid |
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| 174 | jfiltsv=jjm |
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| 175 | |
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| [1086] | 176 | DO j = 2, jjm/2+1 |
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| 177 | cof = COS( rlatu(j) )/ colat0 |
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| 178 | IF ( cof .LT. 1. ) THEN |
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| [1591] | 179 | IF( rlamda(imx) * COS(rlatu(j) ).LT.1. ) THEN |
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| 180 | jfiltnu= j |
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| 181 | ENDIF |
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| [1086] | 182 | ENDIF |
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| 183 | |
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| 184 | cof = COS( rlatu(jjp1-j+1) )/ colat0 |
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| 185 | IF ( cof .LT. 1. ) THEN |
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| [1591] | 186 | IF( rlamda(imx) * COS(rlatu(jjp1-j+1) ).LT.1. ) THEN |
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| [1086] | 187 | jfiltsu= jjp1-j+1 |
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| [1591] | 188 | ENDIF |
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| [1086] | 189 | ENDIF |
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| 190 | ENDDO |
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| 191 | ! |
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| 192 | DO j = 1, jjm/2 |
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| 193 | cof = COS( rlatv(j) )/ colat0 |
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| 194 | IF ( cof .LT. 1. ) THEN |
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| [1591] | 195 | IF( rlamda(imx) * COS(rlatv(j) ).LT.1. ) THEN |
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| 196 | jfiltnv= j |
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| 197 | ENDIF |
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| [1086] | 198 | ENDIF |
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| 199 | |
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| 200 | cof = COS( rlatv(jjm-j+1) )/ colat0 |
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| 201 | IF ( cof .LT. 1. ) THEN |
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| [1591] | 202 | IF( rlamda(imx) * COS(rlatv(jjm-j+1) ).LT.1. ) THEN |
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| [1086] | 203 | jfiltsv= jjm-j+1 |
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| [1591] | 204 | ENDIF |
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| [1086] | 205 | ENDIF |
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| 206 | ENDDO |
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| 207 | ! |
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| 208 | |
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| 209 | IF( jfiltnu.GT. jjm/2 +1 ) THEN |
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| 210 | PRINT *,' jfiltnu en dehors des valeurs acceptables ' ,jfiltnu |
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| 211 | STOP |
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| 212 | ENDIF |
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| 213 | |
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| 214 | IF( jfiltsu.GT. jjm +1 ) THEN |
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| 215 | PRINT *,' jfiltsu en dehors des valeurs acceptables ' ,jfiltsu |
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| 216 | STOP |
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| 217 | ENDIF |
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| 218 | |
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| 219 | IF( jfiltnv.GT. jjm/2 ) THEN |
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| 220 | PRINT *,' jfiltnv en dehors des valeurs acceptables ' ,jfiltnv |
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| 221 | STOP |
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| 222 | ENDIF |
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| 223 | |
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| 224 | IF( jfiltsv.GT. jjm ) THEN |
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| 225 | PRINT *,' jfiltsv en dehors des valeurs acceptables ' ,jfiltsv |
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| 226 | STOP |
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| 227 | ENDIF |
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| 228 | |
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| [1591] | 229 | PRINT *,'inifilr: jfiltnv jfiltsv jfiltnu jfiltsu ' , & |
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| [1086] | 230 | jfiltnv,jfiltsv,jfiltnu,jfiltsu |
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| 231 | |
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| 232 | IF(first_call_inifilr) THEN |
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| 233 | ALLOCATE(matriceun(iim,iim,jfiltnu)) |
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| [1591] | 234 | ALLOCATE(matriceus(iim,iim,jjm-jfiltsu+1)) |
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| [1086] | 235 | ALLOCATE(matricevn(iim,iim,jfiltnv)) |
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| [1591] | 236 | ALLOCATE(matricevs(iim,iim,jjm-jfiltsv+1)) |
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| [1086] | 237 | ALLOCATE( matrinvn(iim,iim,jfiltnu)) |
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| [1591] | 238 | ALLOCATE( matrinvs(iim,iim,jjm-jfiltsu+1)) |
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| [1086] | 239 | first_call_inifilr = .FALSE. |
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| 240 | ENDIF |
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| 241 | |
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| 242 | ! |
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| 243 | ! ... Determination de coefilu,coefilv,n=modfrstu,modfrstv .... |
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| 244 | !................................................................ |
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| 245 | ! |
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| 246 | ! |
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| 247 | DO j = 1,jjm |
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| [1591] | 248 | !default initialization: all modes are retained (i.e. no filtering) |
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| [1086] | 249 | modfrstu( j ) = iim |
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| 250 | modfrstv( j ) = iim |
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| 251 | ENDDO |
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| 252 | ! |
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| 253 | DO j = 2,jfiltnu |
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| 254 | DO k = 2,modemax |
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| 255 | cof = rlamda(k) * COS( rlatu(j) ) |
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| 256 | IF ( cof .LT. 1. ) GOTO 82 |
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| 257 | ENDDO |
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| 258 | GOTO 84 |
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| 259 | 82 modfrstu( j ) = k |
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| 260 | ! |
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| 261 | kf = modfrstu( j ) |
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| 262 | DO k = kf , modemax |
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| 263 | cof = rlamda(k) * COS( rlatu(j) ) |
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| 264 | coefilu(k,j) = cof - 1. |
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| 265 | coefilu2(k,j) = cof*cof - 1. |
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| 266 | ENDDO |
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| 267 | 84 CONTINUE |
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| 268 | ENDDO |
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| 269 | ! |
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| 270 | ! |
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| 271 | DO j = 1,jfiltnv |
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| 272 | ! |
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| 273 | DO k = 2,modemax |
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| 274 | cof = rlamda(k) * COS( rlatv(j) ) |
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| 275 | IF ( cof .LT. 1. ) GOTO 87 |
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| 276 | ENDDO |
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| 277 | GOTO 89 |
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| 278 | 87 modfrstv( j ) = k |
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| 279 | ! |
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| 280 | kf = modfrstv( j ) |
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| 281 | DO k = kf , modemax |
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| 282 | cof = rlamda(k) * COS( rlatv(j) ) |
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| 283 | coefilv(k,j) = cof - 1. |
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| 284 | coefilv2(k,j) = cof*cof - 1. |
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| 285 | ENDDO |
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| 286 | 89 CONTINUE |
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| 287 | ENDDO |
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| 288 | ! |
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| 289 | DO j = jfiltsu,jjm |
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| 290 | DO k = 2,modemax |
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| 291 | cof = rlamda(k) * COS( rlatu(j) ) |
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| 292 | IF ( cof .LT. 1. ) GOTO 92 |
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| 293 | ENDDO |
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| 294 | GOTO 94 |
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| 295 | 92 modfrstu( j ) = k |
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| 296 | ! |
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| 297 | kf = modfrstu( j ) |
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| 298 | DO k = kf , modemax |
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| 299 | cof = rlamda(k) * COS( rlatu(j) ) |
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| 300 | coefilu(k,j) = cof - 1. |
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| 301 | coefilu2(k,j) = cof*cof - 1. |
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| 302 | ENDDO |
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| 303 | 94 CONTINUE |
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| 304 | ENDDO |
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| 305 | ! |
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| 306 | DO j = jfiltsv,jjm |
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| 307 | DO k = 2,modemax |
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| 308 | cof = rlamda(k) * COS( rlatv(j) ) |
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| 309 | IF ( cof .LT. 1. ) GOTO 97 |
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| 310 | ENDDO |
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| 311 | GOTO 99 |
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| 312 | 97 modfrstv( j ) = k |
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| 313 | ! |
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| 314 | kf = modfrstv( j ) |
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| 315 | DO k = kf , modemax |
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| 316 | cof = rlamda(k) * COS( rlatv(j) ) |
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| 317 | coefilv(k,j) = cof - 1. |
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| 318 | coefilv2(k,j) = cof*cof - 1. |
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| 319 | ENDDO |
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| 320 | 99 CONTINUE |
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| 321 | ENDDO |
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| 322 | ! |
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| 323 | |
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| 324 | IF(jfiltnv.GE.jjm/2 .OR. jfiltnu.GE.jjm/2)THEN |
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| [1591] | 325 | ! Ehouarn: and what are these for??? Trying to handle a limit case |
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| 326 | ! where filters extend to and meet at the equator? |
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| [1086] | 327 | IF(jfiltnv.EQ.jfiltsv)jfiltsv=1+jfiltnv |
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| 328 | IF(jfiltnu.EQ.jfiltsu)jfiltsu=1+jfiltnu |
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| 329 | |
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| 330 | PRINT *,'jfiltnv jfiltsv jfiltnu jfiltsu' , & |
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| 331 | jfiltnv,jfiltsv,jfiltnu,jfiltsu |
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| 332 | ENDIF |
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| 333 | |
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| 334 | PRINT *,' Modes premiers v ' |
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| 335 | PRINT 334,modfrstv |
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| 336 | PRINT *,' Modes premiers u ' |
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| 337 | PRINT 334,modfrstu |
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| 338 | |
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| 339 | ! |
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| 340 | ! ................................................................... |
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| 341 | ! |
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| 342 | ! ... Calcul de la matrice filtre 'matriceu' pour les champs situes |
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| 343 | ! sur la grille scalaire ........ |
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| 344 | ! ................................................................... |
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| 345 | ! |
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| 346 | DO j = 2, jfiltnu |
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| 347 | |
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| 348 | DO i=1,iim |
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| 349 | coff = coefilu(i,j) |
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| 350 | IF( i.LT.modfrstu(j) ) coff = 0. |
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| 351 | DO k=1,iim |
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| 352 | eignft(i,k) = eignfnv(k,i) * coff |
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| 353 | ENDDO |
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| [1591] | 354 | ENDDO ! of DO i=1,iim |
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| [1086] | 355 | #ifdef CRAY |
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| 356 | CALL MXM( eignfnv,iim,eignft,iim,matriceun(1,1,j),iim ) |
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| 357 | #else |
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| 358 | #ifdef BLAS |
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| 359 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 360 | eignfnv, iim, eignft, iim, 0.0, matriceun(1,1,j), iim) |
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| 361 | #else |
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| 362 | DO k = 1, iim |
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| 363 | DO i = 1, iim |
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| 364 | matriceun(i,k,j) = 0.0 |
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| 365 | DO ii = 1, iim |
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| 366 | matriceun(i,k,j) = matriceun(i,k,j) & |
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| 367 | + eignfnv(i,ii)*eignft(ii,k) |
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| 368 | ENDDO |
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| 369 | ENDDO |
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| [1591] | 370 | ENDDO ! of DO k = 1, iim |
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| [1086] | 371 | #endif |
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| 372 | #endif |
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| 373 | |
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| [1591] | 374 | ENDDO ! of DO j = 2, jfiltnu |
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| [1086] | 375 | |
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| 376 | DO j = jfiltsu, jjm |
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| 377 | |
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| 378 | DO i=1,iim |
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| 379 | coff = coefilu(i,j) |
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| 380 | IF( i.LT.modfrstu(j) ) coff = 0. |
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| 381 | DO k=1,iim |
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| 382 | eignft(i,k) = eignfnv(k,i) * coff |
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| 383 | ENDDO |
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| [1591] | 384 | ENDDO ! of DO i=1,iim |
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| [1086] | 385 | #ifdef CRAY |
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| 386 | CALL MXM(eignfnv,iim,eignft,iim,matriceus(1,1,j-jfiltsu+1),iim) |
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| 387 | #else |
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| 388 | #ifdef BLAS |
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| 389 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 390 | eignfnv, iim, eignft, iim, 0.0, & |
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| 391 | matriceus(1,1,j-jfiltsu+1), iim) |
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| 392 | #else |
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| 393 | DO k = 1, iim |
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| 394 | DO i = 1, iim |
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| 395 | matriceus(i,k,j-jfiltsu+1) = 0.0 |
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| 396 | DO ii = 1, iim |
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| 397 | matriceus(i,k,j-jfiltsu+1) = matriceus(i,k,j-jfiltsu+1) & |
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| 398 | + eignfnv(i,ii)*eignft(ii,k) |
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| 399 | ENDDO |
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| 400 | ENDDO |
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| [1591] | 401 | ENDDO ! of DO k = 1, iim |
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| [1086] | 402 | #endif |
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| 403 | #endif |
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| 404 | |
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| [1591] | 405 | ENDDO ! of DO j = jfiltsu, jjm |
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| [1086] | 406 | |
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| 407 | ! ................................................................... |
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| 408 | ! |
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| 409 | ! ... Calcul de la matrice filtre 'matricev' pour les champs situes |
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| 410 | ! sur la grille de V ou de Z ........ |
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| 411 | ! ................................................................... |
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| 412 | ! |
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| 413 | DO j = 1, jfiltnv |
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| 414 | |
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| 415 | DO i = 1, iim |
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| 416 | coff = coefilv(i,j) |
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| 417 | IF( i.LT.modfrstv(j) ) coff = 0. |
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| 418 | DO k = 1, iim |
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| 419 | eignft(i,k) = eignfnu(k,i) * coff |
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| 420 | ENDDO |
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| 421 | ENDDO |
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| 422 | #ifdef CRAY |
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| 423 | CALL MXM( eignfnu,iim,eignft,iim,matricevn(1,1,j),iim ) |
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| 424 | #else |
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| 425 | #ifdef BLAS |
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| 426 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 427 | eignfnu, iim, eignft, iim, 0.0, matricevn(1,1,j), iim) |
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| 428 | #else |
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| 429 | DO k = 1, iim |
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| 430 | DO i = 1, iim |
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| 431 | matricevn(i,k,j) = 0.0 |
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| 432 | DO ii = 1, iim |
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| 433 | matricevn(i,k,j) = matricevn(i,k,j) & |
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| 434 | + eignfnu(i,ii)*eignft(ii,k) |
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| 435 | ENDDO |
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| 436 | ENDDO |
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| 437 | ENDDO |
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| 438 | #endif |
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| 439 | #endif |
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| 440 | |
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| [1591] | 441 | ENDDO ! of DO j = 1, jfiltnv |
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| [1086] | 442 | |
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| 443 | DO j = jfiltsv, jjm |
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| 444 | |
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| 445 | DO i = 1, iim |
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| 446 | coff = coefilv(i,j) |
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| 447 | IF( i.LT.modfrstv(j) ) coff = 0. |
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| 448 | DO k = 1, iim |
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| 449 | eignft(i,k) = eignfnu(k,i) * coff |
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| 450 | ENDDO |
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| 451 | ENDDO |
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| 452 | #ifdef CRAY |
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| 453 | CALL MXM(eignfnu,iim,eignft,iim,matricevs(1,1,j-jfiltsv+1),iim) |
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| 454 | #else |
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| 455 | #ifdef BLAS |
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| 456 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 457 | eignfnu, iim, eignft, iim, 0.0, & |
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| 458 | matricevs(1,1,j-jfiltsv+1), iim) |
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| 459 | #else |
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| 460 | DO k = 1, iim |
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| 461 | DO i = 1, iim |
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| 462 | matricevs(i,k,j-jfiltsv+1) = 0.0 |
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| 463 | DO ii = 1, iim |
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| 464 | matricevs(i,k,j-jfiltsv+1) = matricevs(i,k,j-jfiltsv+1) & |
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| 465 | + eignfnu(i,ii)*eignft(ii,k) |
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| 466 | ENDDO |
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| 467 | ENDDO |
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| 468 | ENDDO |
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| 469 | #endif |
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| 470 | #endif |
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| 471 | |
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| [1591] | 472 | ENDDO ! of DO j = jfiltsv, jjm |
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| [1086] | 473 | |
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| 474 | ! ................................................................... |
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| 475 | ! |
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| 476 | ! ... Calcul de la matrice filtre 'matrinv' pour les champs situes |
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| 477 | ! sur la grille scalaire , pour le filtre inverse ........ |
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| 478 | ! ................................................................... |
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| 479 | ! |
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| 480 | DO j = 2, jfiltnu |
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| 481 | |
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| 482 | DO i = 1,iim |
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| 483 | coff = coefilu(i,j)/ ( 1. + coefilu(i,j) ) |
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| 484 | IF( i.LT.modfrstu(j) ) coff = 0. |
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| 485 | DO k=1,iim |
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| 486 | eignft(i,k) = eignfnv(k,i) * coff |
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| 487 | ENDDO |
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| 488 | ENDDO |
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| 489 | #ifdef CRAY |
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| 490 | CALL MXM( eignfnv,iim,eignft,iim,matrinvn(1,1,j),iim ) |
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| 491 | #else |
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| 492 | #ifdef BLAS |
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| 493 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 494 | eignfnv, iim, eignft, iim, 0.0, matrinvn(1,1,j), iim) |
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| 495 | #else |
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| 496 | DO k = 1, iim |
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| 497 | DO i = 1, iim |
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| 498 | matrinvn(i,k,j) = 0.0 |
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| 499 | DO ii = 1, iim |
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| 500 | matrinvn(i,k,j) = matrinvn(i,k,j) & |
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| 501 | + eignfnv(i,ii)*eignft(ii,k) |
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| 502 | ENDDO |
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| 503 | ENDDO |
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| 504 | ENDDO |
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| 505 | #endif |
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| 506 | #endif |
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| 507 | |
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| [1591] | 508 | ENDDO ! of DO j = 2, jfiltnu |
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| [1086] | 509 | |
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| 510 | DO j = jfiltsu, jjm |
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| 511 | |
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| 512 | DO i = 1,iim |
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| 513 | coff = coefilu(i,j) / ( 1. + coefilu(i,j) ) |
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| 514 | IF( i.LT.modfrstu(j) ) coff = 0. |
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| 515 | DO k=1,iim |
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| 516 | eignft(i,k) = eignfnv(k,i) * coff |
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| 517 | ENDDO |
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| 518 | ENDDO |
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| 519 | #ifdef CRAY |
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| 520 | CALL MXM(eignfnv,iim,eignft,iim,matrinvs(1,1,j-jfiltsu+1),iim) |
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| 521 | #else |
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| 522 | #ifdef BLAS |
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| 523 | CALL SGEMM ('N', 'N', iim, iim, iim, 1.0, & |
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| 524 | eignfnv, iim, eignft, iim, 0.0, matrinvs(1,1,j-jfiltsu+1), iim) |
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| 525 | #else |
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| 526 | DO k = 1, iim |
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| 527 | DO i = 1, iim |
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| 528 | matrinvs(i,k,j-jfiltsu+1) = 0.0 |
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| 529 | DO ii = 1, iim |
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| 530 | matrinvs(i,k,j-jfiltsu+1) = matrinvs(i,k,j-jfiltsu+1) & |
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| 531 | + eignfnv(i,ii)*eignft(ii,k) |
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| 532 | ENDDO |
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| 533 | ENDDO |
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| 534 | ENDDO |
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| 535 | #endif |
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| 536 | #endif |
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| 537 | |
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| [1591] | 538 | ENDDO ! of DO j = jfiltsu, jjm |
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| [1086] | 539 | |
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| [1279] | 540 | IF (use_filtre_fft) THEN |
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| 541 | CALL Init_filtre_fft(coefilu,modfrstu,jfiltnu,jfiltsu, & |
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| 542 | coefilv,modfrstv,jfiltnv,jfiltsv) |
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| [1685] | 543 | CALL Init_filtre_fft_loc(coefilu,modfrstu,jfiltnu,jfiltsu, & |
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| 544 | coefilv,modfrstv,jfiltnv,jfiltsv) |
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| [1279] | 545 | ENDIF |
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| 546 | |
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| [1086] | 547 | ! ................................................................... |
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| 548 | |
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| 549 | ! |
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| 550 | 334 FORMAT(1x,24i3) |
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| 551 | 755 FORMAT(1x,6f10.3,i3) |
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| 552 | |
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| 553 | RETURN |
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| 554 | END SUBROUTINE inifilr |
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| 555 | |
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| [1108] | 556 | END MODULE filtreg_mod |
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