| 1 | MODULE SUMPLAT_MOD |
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| 2 | CONTAINS |
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| 3 | SUBROUTINE SUMPLAT(KDGL,KPROC,KPROCA,KMYSETA,LDSPLIT,LDEQ_REGIONS,& |
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| 4 | &KFRSTLAT,KLSTLAT,KFRSTLOFF,KPTRLAT,& |
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| 5 | &KPTRFRSTLAT,KPTRLSTLAT,KPTRFLOFF,& |
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| 6 | &KMEDIAP,KRESTM,LDSPLITLAT) |
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| 7 | |
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| 8 | !**** *SUMPLAT * - Initialize gridpoint distrbution in N-S direction |
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| 9 | |
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| 10 | ! Purpose. |
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| 11 | ! -------- |
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| 12 | |
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| 13 | |
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| 14 | !** Interface. |
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| 15 | ! ---------- |
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| 16 | ! *CALL* *SUMPLAT * |
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| 17 | |
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| 18 | ! Explicit arguments - input : |
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| 19 | ! -------------------- |
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| 20 | ! KDGL -last latitude |
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| 21 | ! KPROC -total number of processors |
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| 22 | ! KPROCA -number of processors in A direction |
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| 23 | ! KMYSETA -process number in A direction |
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| 24 | ! LDSPLIT -true for latitudes shared between sets |
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| 25 | ! LDEQ_REGIONS -true if eq_regions partitioning |
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| 26 | |
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| 27 | ! Explicit arguments - output: |
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| 28 | ! -------------------- |
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| 29 | ! KMEDIAP -mean number of grid points per PE |
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| 30 | ! KRESTM -number of PEs with one extra point |
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| 31 | ! KFRSTLAT -first latitude row on processor |
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| 32 | ! KLSTLAT -last latitude row on processor |
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| 33 | ! KFRSTLOFF -offset for first latitude in set |
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| 34 | ! KPTRLAT -pointer to start of latitude |
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| 35 | ! KPTRFRSTLAT-pointer to first latitude |
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| 36 | ! KPTRLSTLAT -pointer to last latitude |
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| 37 | ! KPTRFLOFF -offset for pointer to first latitude |
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| 38 | ! LDSPLITLAT -true for latitudes which are split |
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| 39 | |
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| 40 | ! Implicit arguments : |
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| 41 | ! -------------------- |
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| 42 | |
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| 43 | |
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| 44 | ! Method. |
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| 45 | ! ------- |
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| 46 | ! See documentation |
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| 47 | |
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| 48 | ! Externals. SUMPLATB and SUEMPLATB. |
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| 49 | ! ---------- |
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| 50 | |
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| 51 | ! Reference. |
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| 52 | ! ---------- |
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| 53 | ! ECMWF Research Department documentation of the IFS |
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| 54 | |
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| 55 | ! Author. |
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| 56 | ! ------- |
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| 57 | ! MPP Group *ECMWF* |
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| 58 | |
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| 59 | ! Modifications. |
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| 60 | ! -------------- |
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| 61 | ! Original : 95-10-01 |
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| 62 | ! David Dent:97-06-02 parameters KFRSTLAT etc added |
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| 63 | ! JF. Estrade:97-11-13 Adaptation to ALADIN case |
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| 64 | ! J.Boutahar: 98-07-06 phasing with CY19 |
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| 65 | ! Modified 98-08-10 by K. YESSAD: removal of LRPOLE option + cleanings |
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| 66 | ! (correct computation of extrapolar latitudes for KPROCL). |
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| 67 | ! Modified 98-12-07 by K. YESSAD and C. FISCHER: cleaning. |
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| 68 | ! - merge old sumplat.F and suemplat.F |
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| 69 | ! - gather 'lelam' code and 'not lelam' code. |
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| 70 | ! - clean (useless duplication of variables, non doctor features). |
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| 71 | ! - remodularise according to lelam/not lelam |
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| 72 | ! -> lelam features in new routine suemplatb.F, |
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| 73 | ! not lelam features in new routine sumplatb.F |
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| 74 | ! ------------------------------------------------------------------ |
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| 75 | |
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| 76 | USE PARKIND1 ,ONLY : JPIM ,JPRB |
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| 77 | |
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| 78 | USE TPM_GEOMETRY |
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| 79 | USE TPM_DISTR |
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| 80 | |
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| 81 | USE SUMPLATB_MOD |
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| 82 | USE SUMPLATBEQ_MOD |
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| 83 | |
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| 84 | IMPLICIT NONE |
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| 85 | |
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| 86 | |
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| 87 | ! * DUMMY: |
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| 88 | INTEGER(KIND=JPIM),INTENT(OUT) :: KMEDIAP |
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| 89 | INTEGER(KIND=JPIM),INTENT(OUT) :: KRESTM |
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| 90 | INTEGER(KIND=JPIM),INTENT(IN) :: KDGL |
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| 91 | INTEGER(KIND=JPIM),INTENT(IN) :: KPROC |
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| 92 | INTEGER(KIND=JPIM),INTENT(IN) :: KPROCA |
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| 93 | INTEGER(KIND=JPIM),INTENT(IN) :: KMYSETA |
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| 94 | INTEGER(KIND=JPIM),INTENT(OUT) :: KFRSTLAT(:) |
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| 95 | INTEGER(KIND=JPIM),INTENT(OUT) :: KLSTLAT(:) |
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| 96 | INTEGER(KIND=JPIM),INTENT(OUT) :: KFRSTLOFF |
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| 97 | INTEGER(KIND=JPIM),INTENT(OUT) :: KPTRLAT(:) |
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| 98 | INTEGER(KIND=JPIM),INTENT(OUT) :: KPTRFRSTLAT(:) |
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| 99 | INTEGER(KIND=JPIM),INTENT(OUT) :: KPTRLSTLAT(:) |
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| 100 | INTEGER(KIND=JPIM),INTENT(OUT) :: KPTRFLOFF |
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| 101 | LOGICAL,INTENT(IN) :: LDSPLIT |
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| 102 | LOGICAL,INTENT(IN) :: LDEQ_REGIONS |
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| 103 | LOGICAL,INTENT(OUT) :: LDSPLITLAT(:) |
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| 104 | |
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| 105 | ! * LOCAL: |
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| 106 | ! === END OF INTERFACE BLOCK === |
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| 107 | INTEGER(KIND=JPIM) :: INDIC(KPROCA),ILAST(KPROCA) |
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| 108 | |
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| 109 | ! LOCAL INTEGER SCALARS |
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| 110 | INTEGER(KIND=JPIM) :: IPTRLATITUDE, JA, JGL |
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| 111 | |
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| 112 | |
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| 113 | ! ----------------------------------------------------------------- |
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| 114 | |
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| 115 | !* 1. CODE DEPENDING ON 'LELAM': COMPUTATION OF |
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| 116 | ! KMEDIAP, KRESTM, INDIC, ILAST. |
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| 117 | ! ----------------------------------------- |
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| 118 | |
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| 119 | |
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| 120 | IF( LDEQ_REGIONS )THEN |
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| 121 | CALL SUMPLATBEQ(1,KDGL,KPROC,KPROCA,G%NLOEN,LDSPLIT,LDEQ_REGIONS,& |
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| 122 | &KMEDIAP,KRESTM,INDIC,ILAST) |
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| 123 | ELSE |
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| 124 | CALL SUMPLATB(1,KDGL,KPROCA,G%NLOEN,LDSPLIT,& |
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| 125 | &KMEDIAP,KRESTM,INDIC,ILAST) |
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| 126 | ENDIF |
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| 127 | |
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| 128 | ! ----------------------------------------------------------------- |
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| 129 | |
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| 130 | !* 2. CODE NOT DEPENDING ON 'LELAM': COMPUTATION OF |
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| 131 | ! KFRSTLAT TO LDSPLITLAT. |
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| 132 | ! --------------------------------------------- |
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| 133 | |
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| 134 | |
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| 135 | ! * Computation of first and last latitude of processor sets |
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| 136 | ! ----------- in grid-point-space ----------------------- |
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| 137 | |
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| 138 | KFRSTLAT(1) = 1 |
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| 139 | KLSTLAT(KPROCA) = KDGL |
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| 140 | DO JA=1,KPROCA-1 |
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| 141 | !!$ IF(MYPROC==1)THEN |
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| 142 | !!$ WRITE(0,'("SUMPLAT_MOD: JA=",I3," ILAST=",I3," INDIC=",I3)')& |
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| 143 | !!$ &JA,ILAST(JA),INDIC(JA) |
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| 144 | !!$ ENDIF |
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| 145 | IF ((.NOT. LDSPLIT) .OR. INDIC(JA) == 0) THEN |
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| 146 | KFRSTLAT(JA+1) = ILAST(JA) + 1 |
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| 147 | KLSTLAT(JA) = ILAST(JA) |
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| 148 | ELSE |
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| 149 | KFRSTLAT(JA+1) = INDIC(JA) |
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| 150 | KLSTLAT(JA) = INDIC(JA) |
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| 151 | ENDIF |
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| 152 | ENDDO |
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| 153 | KFRSTLOFF=KFRSTLAT(KMYSETA)-1 |
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| 154 | |
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| 155 | ! * Initialise following data structures:- |
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| 156 | ! NPTRLAT (pointer to the start of each latitude) |
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| 157 | ! LSPLITLAT (TRUE if latitude is split over two A sets) |
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| 158 | ! NPTRFRSTLAT (pointer to the first latitude of each A set) |
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| 159 | ! NPTRLSTLAT (pointer to the last latitude of each A set) |
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| 160 | |
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| 161 | DO JGL=1,KDGL |
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| 162 | KPTRLAT (JGL)=-999 |
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| 163 | LDSPLITLAT(JGL)=.FALSE. |
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| 164 | ENDDO |
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| 165 | IPTRLATITUDE=0 |
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| 166 | DO JA=1,KPROCA |
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| 167 | DO JGL=KFRSTLAT(JA),KLSTLAT(JA) |
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| 168 | IPTRLATITUDE=IPTRLATITUDE+1 |
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| 169 | LDSPLITLAT(JGL)=.TRUE. |
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| 170 | IF( KPTRLAT(JGL) == -999 )THEN |
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| 171 | KPTRLAT(JGL)=IPTRLATITUDE |
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| 172 | LDSPLITLAT(JGL)=.FALSE. |
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| 173 | ENDIF |
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| 174 | ENDDO |
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| 175 | ENDDO |
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| 176 | DO JA=1,KPROCA |
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| 177 | IF( LDSPLITLAT(KFRSTLAT(JA)) .AND. JA /= 1)THEN |
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| 178 | KPTRFRSTLAT(JA)=KPTRLAT(KFRSTLAT(JA))+1 |
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| 179 | ELSE |
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| 180 | KPTRFRSTLAT(JA)=KPTRLAT(KFRSTLAT(JA)) |
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| 181 | ENDIF |
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| 182 | IF( LDSPLITLAT(KLSTLAT(JA)) .AND. JA == KPROCA)THEN |
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| 183 | KPTRLSTLAT(JA)=KPTRLAT(KLSTLAT(JA))+1 |
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| 184 | ELSE |
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| 185 | KPTRLSTLAT(JA)=KPTRLAT(KLSTLAT(JA)) |
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| 186 | ENDIF |
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| 187 | ENDDO |
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| 188 | KPTRFLOFF=KPTRFRSTLAT(KMYSETA)-1 |
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| 189 | !!$IF(MYPROC==1)THEN |
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| 190 | !!$ DO JGL=1,KDGL |
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| 191 | !!$ WRITE(0,'("SUMPLAT_MOD: JGL=",I3," KPTRLAT=",I3," LDSPLITLAT=",L4)')& |
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| 192 | !!$ & JGL,KPTRLAT(JGL),LDSPLITLAT(JGL) |
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| 193 | !!$ ENDDO |
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| 194 | !!$ DO JA=1,KPROCA |
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| 195 | !!$ WRITE(0,'("SUMPLAT_MOD: JA=",I3," KFRSTLAT=",I3," KLSTLAT=",I3,& |
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| 196 | !!$ & " KPTRFRSTLAT=",I3," KPTRLSTLAT=",I3)')& |
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| 197 | !!$ & JA,KFRSTLAT(JA),KLSTLAT(JA),KPTRFRSTLAT(JA),KPTRLSTLAT(JA) |
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| 198 | !!$ ENDDO |
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| 199 | !!$ENDIF |
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| 200 | |
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| 201 | ! ------------------------------------------------------------------ |
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| 202 | |
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| 203 | END SUBROUTINE SUMPLAT |
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| 204 | END MODULE SUMPLAT_MOD |
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