You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
psblas3/base/serial/jad/sjadsm.f

140 lines
4.5 KiB
Fortran

C
C Parallel Sparse BLAS version 2.2
C (C) Copyright 2006/2007/2008
C 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
SUBROUTINE SJADSM(TRANST,M,N,VDIAG,TDIAG,PERMQ,ALPHA,DESCRA,
+ AR,JA,IA,PERMP,B,LDB,BETA,C,LDC,WORK)
use psb_const_mod
use psb_error_mod
use psb_string_mod
implicit none
C
C
C .. Scalar Arguments ..
INTEGER LDB, LDC, M, N
CHARACTER TDIAG, TRANST
real(psb_spk_) ALPHA, BETA
C .. Array Arguments ..
real(psb_spk_) AR(*), B(LDB,*), C(LDC,*), VDIAG(*), WORK(*)
INTEGER IA(*), JA(*), PERMP(*), PERMQ(*)
CHARACTER DESCRA*11
C .. Local Scalars ..
INTEGER PIA, PJA, PNG
INTEGER I, K, ERR_ACT
CHARACTER UPLO,UNITD
integer :: debug_level, debug_unit
CHARACTER*20 NAME
INTEGER INT_VAL(5),ierror
C .. Executable Statements ..
C
NAME = 'DJADSM'
IERROR = 0
CALL FCPSB_ERRACTIONSAVE(ERR_ACT)
debug_unit = psb_get_debug_unit()
debug_level = psb_get_debug_level()
IF((ALPHA.NE.sone) .OR. (BETA.NE.szero))then
IERROR=5
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
GOTO 9999
ENDIF
UPLO = '?'
IF (psb_toupper(DESCRA(1:1)).EQ.'T' .AND.
+ psb_toupper(DESCRA(2:2)).EQ.'U') UPLO = 'U'
IF (psb_toupper(DESCRA(1:1)).EQ.'T' .AND.
+ psb_toupper(DESCRA(2:2)).EQ.'L') UPLO = 'L'
C
IF (UPLO.EQ.'?') THEN
IERROR=5
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
GOTO 9999
END IF
IF (psb_toupper(DESCRA(3:3)).NE.'U') THEN
IERROR=5
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
GOTO 9999
END IF
UNITD=DESCRA(3:3)
C
C B = INV(A)*B OR B=INV(A')*B
C
if (debug_level >= psb_debug_serial_comp_)
+ write(debug_unit,*) trim(name),': entry',m,n
IF (psb_toupper(TDIAG).EQ.'R') THEN
if (debug_level >= psb_debug_serial_comp_)
+ write(debug_unit,*) trim(name),': Right Scale'
DO I = 1, N
DO K = 1, M
B(K,I) = B(K,I)*VDIAG(K)
ENDDO
ENDDO
END IF
PNG = IA(1)
PIA = IA(2)
PJA = IA(3)
DO I = 1, N
CALL SJADSV(UNITD,M,IA(PNG),
+ AR,JA,IA(PIA),IA(PJA),B(1,I),C(1,I),IERROR)
ENDDO
IF(IERROR.NE.0) THEN
INT_VAL(1)=IERROR
CALL FCPSB_ERRPUSH(4012,NAME,INT_VAL)
GOTO 9999
END IF
IF (psb_toupper(TDIAG).EQ.'L') THEN
if (debug_level >= psb_debug_serial_comp_)
+ write(debug_unit,*) trim(name),': Left Scale'
DO I = 1, N
DO K = 1, M
C(K,I) = C(K,I)*VDIAG(K)
ENDDO
ENDDO
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