psblas3/base/serial/dp/zcrco.f

C
C             Parallel Sparse BLAS  v2.0
C   (C) Copyright 2006 Salvatore Filippone    University of Rome Tor Vergata
C                      Alfredo Buttari        University of Rome Tor Vergata
C
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C modification, are permitted provided that the following conditions
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C   1. Redistributions of source code must retain the above copyright
C      notice, this list of conditions and the following disclaimer.
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C   3. The name of the PSBLAS group or the names of its contributors may
C      not be used to endorse or promote products derived from this
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C
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C
C 
      SUBROUTINE ZCRCO(TRANS,M,N,UNITD,D,DESCRA,AR,IA1,IA2,INFO,
     *  IP1,DESCRN,ARN,IAN1,IAN2,INFON,IP2,LARN,LIAN1,
     *  LIAN2,AUX,LAUX,IERROR)

      use psb_const_mod
      use psb_spmat_type
      use psb_string_mod
      use psb_error_mod
      IMPLICIT NONE

C
C     .. Scalar Arguments ..
      INTEGER            LARN, LAUX, LIAN1, LIAN2, M, N, IERROR
      CHARACTER          TRANS,UNITD
C     .. Array Arguments ..
      complex(kind(1.d0))   AR(*), ARN(*), D(*), AUX(LAUX)
      INTEGER            IA1(*), IA2(*), INFO(*), IAN1(*), IAN2(*),
     *  INFON(*), IP1(*), IP2(*)
      CHARACTER          DESCRA*11, DESCRN*11
C     .. Local Scalars ..
      INTEGER            NNZ, K, ROW, J
      INTEGER            ELEM, ERR_ACT
      LOGICAL            SCALE
      INTEGER MAX_NNZERO
c     .. Local Arrays ..
      CHARACTER*20       NAME
      INTEGER            INT_VAL(5)
      integer              :: debug_level, debug_unit
C     .. External Subroutines ..
      EXTERNAL           MAX_NNZERO
C     .. Executable Statements ..
C

      NAME = 'ZCRCO'
      IERROR = 0
      CALL FCPSB_ERRACTIONSAVE(ERR_ACT)
      debug_unit  = psb_get_debug_unit()
      debug_level = psb_get_debug_level()

      IF (toupper(TRANS).EQ.'N') THEN
        SCALE  = (toupper(UNITD).EQ.'L') ! meaningless
        IP1(1) = 0
        IP2(1) = 0
        NNZ = IA2(M+1)-1
        if (debug_level >= psb_debug_serial_)
     +    write(debug_unit,*) trim(name),': entry',m,n,nnz,
     +    ' : ',descra,' : ',descrn

        IF (LARN.LT.NNZ) THEN
          IERROR = 60
          INT_VAL(1) = 18
          INT_VAL(2) = NNZ
          INT_VAL(3) = LARN
        ELSE IF (LIAN1.LT.NNZ) THEN
          IERROR = 60
          INT_VAL(1) = 19
          INT_VAL(2) = NNZ
          INT_VAL(3) = LIAN1
        ELSE IF (LIAN2.LT.NNZ) THEN
          IERROR = 60
          INT_VAL(1) = 20
          INT_VAL(2) = NNZ
          INT_VAL(3) = LIAN2
        ENDIF
        
        IF(IERROR.NE.0) THEN
          CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
          GOTO 9999
        END IF
        
        IF (toupper(DESCRA(1:1)).EQ.'G') THEN
C        ... Construct COO Representation...
          ELEM = 0

          DO ROW = 1, M
            DO J = IA2(ROW), IA2(ROW+1)-1
              ELEM = ELEM + 1
              IAN1(ELEM) = ROW
              IAN2(ELEM) = IA1(J)
              ARN(ELEM) = AR(J)
            ENDDO
          ENDDO
          INFON(psb_nnz_) = elem

          if (debug_level >= psb_debug_serial_)
     +      write(debug_unit,*)  trim(name),': endloop',m,elem
        ELSE IF (toupper(DESCRA(1:1)).EQ.'S' .AND.
     +      toupper(DESCRA(2:2)).EQ.'U') THEN

          DO 20 K = 1, M
            IP2(K) = K
 20       CONTINUE

          ierror = 3021
          call fcpsb_errpush(ierror,name,int_val)
          goto 9999
C
        ELSE IF (toupper(DESCRA(1:1)).EQ.'T' .AND.
     +      toupper(DESCRA(2:2)).EQ.'U') THEN

C
          ierror = 3021
          call fcpsb_errpush(ierror,name,int_val)
          goto 9999

        ELSE IF (toupper(DESCRA(1:1)).EQ.'T' .AND.
     +      toupper(DESCRA(2:2)).EQ.'L') THEN

          ierror = 3021
          call fcpsb_errpush(ierror,name,int_val)
          goto 9999

        END IF
C
      ELSE IF (toupper(TRANS).NE.'N') THEN
C
C           TO DO
C     
        IERROR = 3021
        CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
        GOTO 9999

      END IF

      CALL FCPSB_ERRACTIONRESTORE(ERR_ACT)
      RETURN

 9999 CONTINUE
      CALL FCPSB_ERRACTIONRESTORE(ERR_ACT)

      IF ( ERR_ACT .NE. 0 ) THEN 
        CALL FCPSB_SERROR()
        RETURN
      ENDIF

      RETURN
      END