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psblas3/base/serial/dp/djdcox.f

207 lines
6.6 KiB
Fortran

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
C Redistribution and use in source and binary forms, with or without
C modification, are permitted provided that the following conditions
C are met:
C 1. Redistributions of source code must retain the above copyright
C notice, this list of conditions and the following disclaimer.
C 2. Redistributions in binary form must reproduce the above copyright
C notice, this list of conditions, and the following disclaimer in the
C documentation and/or other materials provided with the distribution.
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
C software without specific written permission.
C
C THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
C ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
C TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
C PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
C BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
C CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
C SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
C INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
C CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
C ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
C POSSIBILITY OF SUCH DAMAGE.
C
C
C Covert matrix from JAD format to COO Format
C
SUBROUTINE DJDCOX(TRANS,M,N,DESCRA,AR,IA,JA,KA,NG,IPERM,INFO,
* IP1,DESCRN,ARN,IA1N,IA2N,INFON,IP2,LARN,LIA1N,
* LIA2N,AUX,LAUX,IERROR)
use psb_const_mod
use psb_string_mod
use psb_error_mod
IMPLICIT NONE
C
C .. Scalar Arguments ..
INTEGER NG, LARN, LAUX, LIA1N, LIA2N, M, N, IERROR
CHARACTER TRANS,UNITD
C .. Array Arguments ..
DOUBLE PRECISION AR(*), ARN(*)
INTEGER AUX(0:LAUX/2-1),IPERM(*)
INTEGER IA(3,*), JA(*), KA(*), INFO(*), IA1N(*),
* IA2N(*), INFON(*), IP1(*), IP2(*)
CHARACTER DESCRA*11, DESCRN*11
C .. Local Scalars ..
INTEGER IPX, IPG, NNZ, K, ROW,
* I, J, NZL, IRET, ERR_ACT
LOGICAL SCALE
integer :: debug_level, debug_unit
c .. Local Arrays ..
CHARACTER*20 NAME
INTEGER INT_VAL(5)
C
C .. Executable Statements ..
C
NAME = 'DJDCOX'
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
C SCALE = (UNITD.EQ.'L') ! meaningless
IP1(1) = 0
IP2(1) = 0
IF (IPERM(1).NE.0) THEN
DO I = 1, M
AUX(IPERM(I)) = I
ENDDO
ENDIF
NNZ = JA(IA(2,NG+1)-1 +1)-1
if (debug_level >= psb_debug_serial_) then
write(debug_unit,*) trim(name),': On entry NNZ LAUX ',
+ nnz,laux,larn,lia1n,lia2n
endif
IF (LAUX.LT.NNZ+2) THEN
IERROR = 60
INT_VAL(1) = 23
INT_VAL(2) = NNZ+2
INT_VAL(3) = LAUX
ELSE IF (LARN.LT.NNZ) THEN
IERROR = 60
INT_VAL(1) = 19
INT_VAL(2) = NNZ+2
INT_VAL(3) = LAUX
ELSE IF (LIA1N.LT.NNZ) THEN
IERROR = 60
INT_VAL(1) = 20
INT_VAL(2) = NNZ+2
INT_VAL(3) = LAUX
ELSE IF (LIA2N.LT.NNZ) THEN
IERROR = 60
INT_VAL(1) = 21
INT_VAL(2) = NNZ+2
INT_VAL(3) = LAUX
ENDIF
IF (toupper(DESCRA(1:1)).EQ.'G') THEN
DO 200 IPG = 1, NG
DO 50 K = IA(2,IPG), IA(3,IPG)-1
IPX = IA(1,IPG)
DO 40 I = JA(K), JA(K+1) - 1
ARN(I) = AR(I)
IA1N(I) = AUX(IPX)
IA2N(I) = KA(I)
IPX = IPX + 1
40 CONTINUE
50 CONTINUE
IPX = IA(1,IPG)
DO 70 K = IA(3,IPG), IA(2,IPG+1)-1
DO 60 I = JA(K), JA(K+1) - 1
ARN(I) = AR(I)
IA1N(I) = AUX(IPX)
IA2N(I) = KA(I)
60 CONTINUE
IPX = IPX + 1
70 CONTINUE
200 CONTINUE
C .... Order with key IA1N....
CALL MSORT_UP(NNZ,IA1N,AUX,IRET)
IF (IRET.EQ.0) CALL REORDVN(NNZ,ARN,IA1N,IA2N,AUX)
C .... Order with key IA2N ...
I = 1
J = I
DO WHILE (I.LE.NNZ)
DO WHILE ((IA1N(J).EQ.IA1N(I)).AND.
+ (J.LE.NNZ))
J = J+1
ENDDO
NZL = J - I
CALL MSORT_UP(NZL,IA2N(I),AUX,IRET)
IF (IRET.EQ.0) CALL REORDVN(NZL,ARN(I),IA1N(I),IA2N(I),
+ AUX)
I = J
ENDDO
INFON(1)=nnz
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
c$$$ ELSE IF (DESCRA(1:1).EQ.'T' .AND. DESCRA(2:2).EQ.'U') THEN
c$$$
c$$$ ELSE IF (DESCRA(1:1).EQ.'T' .AND. DESCRA(2:2).EQ.'L') THEN
else
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