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MODULE SUWAVEDI_MOD |
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CONTAINS |
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SUBROUTINE SUWAVEDI(KSMAX,KTMAX,KPRTRW,KMYSETW,KASM0,KSPOLEGL,KPROCM,& |
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&KUMPP,KSPEC,KSPEC2,KSPEC2MX,KPOSSP,KMYMS,& |
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&KPTRMS,KALLMS,KDIM0G) |
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!**** *SUWAVEDI * - Routine to initialize spectral wave distribution |
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! Purpose. |
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! -------- |
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! Initialize arrays controlling spectral wave distribution |
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!** Interface. |
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! ---------- |
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! *CALL* *SUWAVEDI * |
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! Explicit arguments : |
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! -------------------- |
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! KSMAX - Spectral truncation limit (input) |
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! KTMAX - Overtruncation for KSMAX (input) |
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! KPRTRW - Number of processors in A-direction (input) |
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! KMYSETW - A-set for present processor (input) |
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! KASM0 - Offsets for spectral waves (output) |
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! KSPOLEGL - Local version of NSPOLEG (output) |
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! KPROCM - Where a certain spectral wave belongs (output) |
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! KUMPP - Number of spectral waves on this PE (output) |
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! KSPEC - Local version on NSPEC (output) |
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! KSPEC2 - Local version on NSPEC2 (output) |
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! KSPEC2MX - Maximum KSPEC2 across PEs (output) |
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! KPOSSP - Global spectral fields partitioning (output) |
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! KMYMS - This PEs spectral zonal wavenumbers (output) |
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! Implicit arguments : NONE |
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! -------------------- |
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! Method. |
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! ------- |
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! See documentation |
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! Externals. NONE. |
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! ---------- |
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! Reference. |
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! ---------- |
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! ECMWF Research Department documentation of the IFS |
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! Author. |
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! ------- |
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! MPP Group *ECMWF* |
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! Modifications. |
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! -------------- |
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! Original : 96-01-10 |
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! L.Isaksen: 96-02-02 - Calculation of KSPEC2MX added |
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! K.YESSAD : 97-02-18 - Add KTMAX, bug correction for KSPOLEGL. |
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! ------------------------------------------------------------------ |
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USE PARKIND1 ,ONLY : JPIM ,JPRB |
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IMPLICIT NONE |
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! DUMMY |
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INTEGER(KIND=JPIM),INTENT(IN) :: KSMAX |
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INTEGER(KIND=JPIM),INTENT(IN) :: KTMAX |
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INTEGER(KIND=JPIM),INTENT(IN) :: KPRTRW |
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INTEGER(KIND=JPIM),INTENT(IN) :: KMYSETW |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KSPEC |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KSPEC2 |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KSPEC2MX |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KSPOLEGL |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KASM0(0:KSMAX) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KPROCM(0:KSMAX) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KUMPP(KPRTRW) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KMYMS(KSMAX+1) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KPOSSP(KPRTRW+1) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KPTRMS(KPRTRW) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KALLMS(KSMAX+1) |
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INTEGER(KIND=JPIM),OPTIONAL,INTENT(OUT) :: KDIM0G(0:KSMAX) |
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! LOCAL |
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INTEGER(KIND=JPIM) :: IK, IL, IND, IPOS, ISPEC2P, JA, JM,JMLOC,IM |
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INTEGER(KIND=JPIM) :: ISPOLEGL,ISPEC2MX,IASM0(0:KSMAX),IPROCM(0:KSMAX) |
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INTEGER(KIND=JPIM) :: IUMPP(KPRTRW),IMYMS(KSMAX+1),IPOSSP(KPRTRW+1) |
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INTEGER(KIND=JPIM) :: IPTRMS(KPRTRW),IALLMS(KSMAX+1),IDIM0G(0:KSMAX) |
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INTEGER(KIND=JPIM) :: ISPEC(KPRTRW),IC(KPRTRW) |
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! ----------------------------------------------------------------- |
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!* 1. Initialize partitioning of wave numbers to PEs |
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! ---------------------------------------------- |
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ISPEC(:) = 0 |
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IUMPP(:) = 0 |
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IASM0(:) = -99 |
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ISPOLEGL = 0 |
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IL = 1 |
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IND = 1 |
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IK = 0 |
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IPOS = 1 |
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DO JM=0,KSMAX |
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IK = IK + IND |
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IF (IK > KPRTRW) THEN |
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IK = KPRTRW |
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IND = -1 |
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ELSEIF (IK < 1) THEN |
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IK = 1 |
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IND = 1 |
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ENDIF |
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IPROCM(JM) = IK |
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ISPEC(IK) = ISPEC(IK)+KSMAX-JM+1 |
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IUMPP(IK) = IUMPP(IK)+1 |
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IF (IK == KMYSETW) THEN |
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ISPOLEGL = ISPOLEGL +KTMAX+1-JM+1 |
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IMYMS(IL) = JM |
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IASM0(JM) = IPOS |
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IPOS = IPOS+(KSMAX-JM+1)*2 |
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IL = IL+1 |
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ENDIF |
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ENDDO |
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IPOSSP(1) = 1 |
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ISPEC2P = 2*ISPEC(1) |
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ISPEC2MX = ISPEC2P |
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IPTRMS(1) = 1 |
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DO JA=2,KPRTRW |
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IPOSSP(JA) = IPOSSP(JA-1)+ISPEC2P |
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ISPEC2P = 2*ISPEC(JA) |
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ISPEC2MX = MAX(ISPEC2MX,ISPEC2P) |
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! pointer to the first wave number of a given wave-set in NALLMS array |
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IPTRMS(JA) = IPTRMS(JA-1)+IUMPP(JA-1) |
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ENDDO |
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IPOSSP(KPRTRW+1) = IPOSSP(KPRTRW)+ISPEC2P |
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! IALLMS : wave numbers for all wave-set concatenated together to give all |
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! wave numbers in wave-set order. |
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IC(:) = 0 |
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DO JM=0,KSMAX |
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IALLMS(IC(IPROCM(JM))+IPTRMS(IPROCM(JM))) = JM |
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IC(IPROCM(JM)) = IC(IPROCM(JM))+1 |
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ENDDO |
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IPOS = 1 |
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DO JA=1,KPRTRW |
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DO JMLOC=1,IUMPP(JA) |
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IM = IALLMS(IPTRMS(JA)+JMLOC-1) |
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IDIM0G(IM) = IPOS |
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IPOS = IPOS+(KSMAX+1-IM)*2 |
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ENDDO |
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ENDDO |
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IF(PRESENT(KSPEC)) KSPEC = ISPEC(KMYSETW) |
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IF(PRESENT(KSPEC2)) KSPEC2 = 2*ISPEC(KMYSETW) |
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IF(PRESENT(KSPEC2MX)) KSPEC2MX = ISPEC2MX |
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IF(PRESENT(KSPOLEGL)) KSPOLEGL = ISPOLEGL |
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IF(PRESENT(KASM0)) KASM0(:) = IASM0(:) |
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IF(PRESENT(KPROCM)) KPROCM(:) = IPROCM(:) |
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IF(PRESENT(KUMPP)) KUMPP(:) = IUMPP(:) |
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IF(PRESENT(KMYMS)) KMYMS(:) = IMYMS(:) |
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IF(PRESENT(KPOSSP)) KPOSSP(:) = IPOSSP(:) |
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IF(PRESENT(KPTRMS)) KPTRMS(:) = IPTRMS(:) |
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IF(PRESENT(KALLMS)) KALLMS(:) = IALLMS(:) |
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IF(PRESENT(KDIM0G)) KDIM0G(:) = IDIM0G(:) |
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END SUBROUTINE SUWAVEDI |
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END MODULE SUWAVEDI_MOD |
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