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C
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C Parallel Sparse BLAS version 2.2
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C (C) Copyright 2006/2007/2008
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C Salvatore Filippone University of Rome Tor Vergata
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C Alfredo Buttari University of Rome Tor Vergata
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C
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C Redistribution and use in source and binary forms, with or without
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C modification, are permitted provided that the following conditions
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C are met:
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C 1. Redistributions of source code must retain the above copyright
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C notice, this list of conditions and the following disclaimer.
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C 2. Redistributions in binary form must reproduce the above copyright
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C notice, this list of conditions, and the following disclaimer in the
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C documentation and/or other materials provided with the distribution.
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C 3. The name of the PSBLAS group or the names of its contributors may
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C not be used to endorse or promote products derived from this
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C software without specific written permission.
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C
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C THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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C ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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C TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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C PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
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C BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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C CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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C SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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C INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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C CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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C ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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C POSSIBILITY OF SUCH DAMAGE.
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C
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C
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***********************************************************************
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* PROCEDURAL LOGIC SECTION *
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* SUBROUTINE DJADMV (DIAG,NROW,NCOL,ALPHA,NG,A,KA,JA,IA,X,BETA,Y) *
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* DOUBLE PRECISION ZERO *
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* PARAMETER (ZERO=0.0D0) *
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* DOUBLE PRECISION ACC *
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* INTEGER I, J, K, IPX, IPG *
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* LOGICAL UNI *
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*C .. Executable Statements .. *
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*C *
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*C *
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* IF (DIAG.EQ.'U') THEN *
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* DO 10 I = 1, M *
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* Y(I) = BETA*Y(I) + ALPHA*X(I) *
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* 10 CONTINUE *
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* ELSE *
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* DO 20 I = 1, M *
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* Y(I) = BETA*Y(I) *
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* 20 CONTINUE *
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* END IF *
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* *
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* IF (ALPHA.EQ.ZERO) THEN *
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* RETURN *
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* END IF *
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*C *
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*C *
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*C DO 200 IPG = 1, NG *
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* DO 50 K = IA(2,IPG), IA(3,IPG)-1 *
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* IPX = IA(1,IPG) *
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* DO 40 I = JA(K), JA(K+1) - 1 *
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* Y(IPX) = Y(IPX) + ALPHA*A(I)*X(KA(I)) *
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* IPX = IPX + 1 *
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* 40 CONTINUE *
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* 50 CONTINUE *
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*C *
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*C *
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* IPX = IA(1,IPG) *
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* DO 70 K = IA(3,IPG), IA(2,IPG+1)-1 *
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* DO 60 I = JA(K), JA(K+1) - 1 *
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* Y(IPX) = Y(IPX) + ALPHA*A(I)*X(KA(I)) *
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* 60 CONTINUE *
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* IPX = IPX + 1 *
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* 70 CONTINUE *
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* 200 CONTINUE *
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*C *
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* RETURN *
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*C *
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*C *
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* END *
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* *
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* *
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***********************************************************************
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SUBROUTINE DJADMV2(DIAG,NROW,NCOL,ALPHA,NG,A,KA,JA,IA,
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+ X,LDX,BETA,Y,LDY, IERROR)
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use psb_const_mod
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IMPLICIT NONE
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INTEGER IA(3,*),KA(*),JA(*),NCOL,NROW,NG,LDX,LDY,IERROR
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real(psb_dpk_) A(*),X(LDX,*),Y(LDY,*),ALPHA,BETA
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CHARACTER DIAG
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real(psb_dpk_) ZERO
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PARAMETER (ZERO=0.0D0)
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INTEGER I, J, K, IPX, IPG, I0, IN
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INTEGER NPG
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integer nb
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parameter (nb=2)
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real(psb_dpk_) Y0(NB), Y1(NB), Y2(NB), Y3(NB), Y4(NB),
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+ Y5(NB), Y6(NB), Y7(NB), Y8(NB), Y9(NB), Y10(NB), Y11(NB),
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+ Y12(NB), Y13(NB), Y14(NB), Y15(NB)
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c .. Executable Statements ..
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c
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c
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c$$$ write(0,*) 'djadmv2:',diag,alpha,beta,nb
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IERROR=0
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IF (DIAG.EQ.'U') THEN
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IF (BETA.EQ.ZERO) THEN
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DO I = 1, NROW
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Y(I,1:NB) = ALPHA*X(I,1:NB)
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ENDDO
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ELSE
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DO 10 I = 1, NROW
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Y(I,1:NB) = BETA*Y(I,1:NB) + ALPHA*X(I,1:NB)
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10 CONTINUE
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ENDIF
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ELSE
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IF (BETA.EQ.ZERO) THEN
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DO I = 1, NROW
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Y(I,1:NB) = 0.D0
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ENDDO
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ELSE
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DO 20 I = 1, NROW
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Y(I,1:NB) = BETA*Y(I,1:NB)
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20 CONTINUE
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END IF
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ENDIF
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IF (ALPHA.EQ.ZERO) THEN
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RETURN
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END IF
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c
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c$$$ write(0,*) 'djadmv2:',diag,alpha,beta
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do 200 ipg = 1, ng
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k = ia(2,ipg)
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npg = ja(k+1)-ja(k)
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c$$$ write(0,*) 'djadmv2:',npg
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if (npg.eq.4) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+3, 4
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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else if (npg.eq.5) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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y4(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+4, 5
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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y4(1:nb) = y4(1:nb) + a(i+4)*x(ka(i+4),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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y(ipx+4,1:nb) = y(ipx+4,1:nb) + alpha*y4(1:nb)
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else if (npg.eq.6) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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y4(1:nb) = zero
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y5(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+5, 6
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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y4(1:nb) = y4(1:nb) + a(i+4)*x(ka(i+4),1:nb)
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y5(1:nb) = y5(1:nb) + a(i+5)*x(ka(i+5),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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y(ipx+4,1:nb) = y(ipx+4,1:nb) + alpha*y4(1:nb)
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y(ipx+5,1:nb) = y(ipx+5,1:nb) + alpha*y5(1:nb)
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else if (npg.eq.7) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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y4(1:nb) = zero
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y5(1:nb) = zero
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y6(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+6, 7
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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y4(1:nb) = y4(1:nb) + a(i+4)*x(ka(i+4),1:nb)
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y5(1:nb) = y5(1:nb) + a(i+5)*x(ka(i+5),1:nb)
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y6(1:nb) = y6(1:nb) + a(i+6)*x(ka(i+6),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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y(ipx+4,1:nb) = y(ipx+4,1:nb) + alpha*y4(1:nb)
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y(ipx+5,1:nb) = y(ipx+5,1:nb) + alpha*y5(1:nb)
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y(ipx+6,1:nb) = y(ipx+6,1:nb) + alpha*y6(1:nb)
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else if (npg.eq.8) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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y4(1:nb) = zero
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y5(1:nb) = zero
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y6(1:nb) = zero
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y7(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+7, 8
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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y4(1:nb) = y4(1:nb) + a(i+4)*x(ka(i+4),1:nb)
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y5(1:nb) = y5(1:nb) + a(i+5)*x(ka(i+5),1:nb)
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y6(1:nb) = y6(1:nb) + a(i+6)*x(ka(i+6),1:nb)
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y7(1:nb) = y7(1:nb) + a(i+7)*x(ka(i+7),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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y(ipx+4,1:nb) = y(ipx+4,1:nb) + alpha*y4(1:nb)
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y(ipx+5,1:nb) = y(ipx+5,1:nb) + alpha*y5(1:nb)
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y(ipx+6,1:nb) = y(ipx+6,1:nb) + alpha*y6(1:nb)
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y(ipx+7,1:nb) = y(ipx+7,1:nb) + alpha*y7(1:nb)
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else if (npg.eq.16) then
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ipx = ia(1,ipg)
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y0(1:nb) = zero
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y1(1:nb) = zero
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y2(1:nb) = zero
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y3(1:nb) = zero
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y4(1:nb) = zero
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y5(1:nb) = zero
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y6(1:nb) = zero
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y7(1:nb) = zero
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y8(1:nb) = zero
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y9(1:nb) = zero
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y10(1:nb) = zero
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y11(1:nb) = zero
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y12(1:nb) = zero
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y13(1:nb) = zero
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y14(1:nb) = zero
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y15(1:nb) = zero
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k = ia(2,ipg)
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i0 = ja(k)
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k = ia(3,ipg)-1
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in = ja(k)
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do i = i0, in+15, 16
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y0(1:nb) = y0(1:nb) + a(i+0)*x(ka(i+0),1:nb)
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y1(1:nb) = y1(1:nb) + a(i+1)*x(ka(i+1),1:nb)
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y2(1:nb) = y2(1:nb) + a(i+2)*x(ka(i+2),1:nb)
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y3(1:nb) = y3(1:nb) + a(i+3)*x(ka(i+3),1:nb)
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y4(1:nb) = y4(1:nb) + a(i+4)*x(ka(i+4),1:nb)
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y5(1:nb) = y5(1:nb) + a(i+5)*x(ka(i+5),1:nb)
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y6(1:nb) = y6(1:nb) + a(i+6)*x(ka(i+6),1:nb)
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y7(1:nb) = y7(1:nb) + a(i+7)*x(ka(i+7),1:nb)
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y8(1:nb) = y8(1:nb) + a(i+8)*x(ka(i+8),1:nb)
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y9(1:nb) = y9(1:nb) + a(i+9)*x(ka(i+9),1:nb)
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y10(1:nb) = y10(1:nb) + a(i+10)*x(ka(i+10),1:nb)
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y11(1:nb) = y11(1:nb) + a(i+11)*x(ka(i+11),1:nb)
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y12(1:nb) = y12(1:nb) + a(i+12)*x(ka(i+12),1:nb)
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y13(1:nb) = y13(1:nb) + a(i+13)*x(ka(i+13),1:nb)
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y14(1:nb) = y14(1:nb) + a(i+14)*x(ka(i+14),1:nb)
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y15(1:nb) = y15(1:nb) + a(i+15)*x(ka(i+15),1:nb)
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enddo
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y(ipx+0,1:nb) = y(ipx+0,1:nb) + alpha*y0(1:nb)
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y(ipx+1,1:nb) = y(ipx+1,1:nb) + alpha*y1(1:nb)
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y(ipx+2,1:nb) = y(ipx+2,1:nb) + alpha*y2(1:nb)
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y(ipx+3,1:nb) = y(ipx+3,1:nb) + alpha*y3(1:nb)
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y(ipx+4,1:nb) = y(ipx+4,1:nb) + alpha*y4(1:nb)
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y(ipx+5,1:nb) = y(ipx+5,1:nb) + alpha*y5(1:nb)
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y(ipx+6,1:nb) = y(ipx+6,1:nb) + alpha*y6(1:nb)
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|
y(ipx+7,1:nb) = y(ipx+7,1:nb) + alpha*y7(1:nb)
|
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y(ipx+8,1:nb) = y(ipx+8,1:nb) + alpha*y8(1:nb)
|
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|
y(ipx+9,1:nb) = y(ipx+9,1:nb) + alpha*y9(1:nb)
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|
y(ipx+10,1:nb) = y(ipx+10,1:nb) + alpha*y10(1:nb)
|
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|
y(ipx+11,1:nb) = y(ipx+11,1:nb) + alpha*y11(1:nb)
|
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|
y(ipx+12,1:nb) = y(ipx+12,1:nb) + alpha*y12(1:nb)
|
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|
y(ipx+13,1:nb) = y(ipx+13,1:nb) + alpha*y13(1:nb)
|
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|
|
y(ipx+14,1:nb) = y(ipx+14,1:nb) + alpha*y14(1:nb)
|
|
|
|
|
y(ipx+15,1:nb) = y(ipx+15,1:nb) + alpha*y15(1:nb)
|
|
|
|
|
|
|
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|
|
else
|
|
|
|
|
|
|
|
|
|
do k = ia(2,ipg), ia(3,ipg)-1
|
|
|
|
|
ipx = ia(1,ipg)
|
|
|
|
|
do i = ja(k), ja(k+1) - 1
|
|
|
|
|
y(ipx,1:nb) = y(ipx,1:nb) + alpha*a(i)*x(ka(i),1:nb)
|
|
|
|
|
ipx = ipx + 1
|
|
|
|
|
enddo
|
|
|
|
|
enddo
|
|
|
|
|
end if
|
|
|
|
|
|
|
|
|
|
c csr product
|
|
|
|
|
|
|
|
|
|
ipx = ia(1,ipg)
|
|
|
|
|
do 70 k = ia(3,ipg), ia(2,ipg+1)-1
|
|
|
|
|
do 60 i = ja(k), ja(k+1) - 1
|
|
|
|
|
y(ipx,1:nb) = y(ipx,1:nb) + alpha*a(i)*x(ka(i),1:nb)
|
|
|
|
|
60 continue
|
|
|
|
|
ipx = ipx + 1
|
|
|
|
|
70 continue
|
|
|
|
|
200 continue
|
|
|
|
|
c
|
|
|
|
|
return
|
|
|
|
|
end
|
|
|
|
|
|
