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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 DJADMV (DIAG,NROW,NCOL,ALPHA,NG,A,KA,JA,IA,X,
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+ BETA,Y,IERROR)
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use psb_const_mod
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IMPLICIT NONE
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real(psb_dpk_) A(*),X(*),Y(*),ALPHA,BETA,ZERO
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INTEGER IA(3,*),KA(*),JA(*),NCOL,NROW,NG,IERROR
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CHARACTER DIAG
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PARAMETER (ZERO=0.0D0)
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INTEGER I, K, IPX, IPG, I0, IN
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INTEGER NPG
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real(psb_dpk_) Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7,
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+ Y8, Y9, Y10, Y11, Y12, Y13, Y14, Y15
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c .. Executable Statements ..
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c
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c
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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) = ALPHA*X(I)
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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) = BETA*Y(I) + ALPHA*X(I)
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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) = 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) = BETA*Y(I)
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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
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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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IF (NPG.EQ.4) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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ELSE IF (NPG.EQ.5) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = ZERO
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Y4 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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Y4 = Y4 + A(I+4)*X(KA(I+4))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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Y(IPX+4) = Y(IPX+4) + ALPHA*Y4
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ELSE IF (NPG.EQ.6) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = ZERO
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Y4 = ZERO
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Y5 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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Y4 = Y4 + A(I+4)*X(KA(I+4))
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Y5 = Y5 + A(I+5)*X(KA(I+5))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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Y(IPX+4) = Y(IPX+4) + ALPHA*Y4
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Y(IPX+5) = Y(IPX+5) + ALPHA*Y5
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ELSE IF (NPG.EQ.7) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = ZERO
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Y4 = ZERO
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Y5 = ZERO
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Y6 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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Y4 = Y4 + A(I+4)*X(KA(I+4))
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Y5 = Y5 + A(I+5)*X(KA(I+5))
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Y6 = Y6 + A(I+6)*X(KA(I+6))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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Y(IPX+4) = Y(IPX+4) + ALPHA*Y4
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Y(IPX+5) = Y(IPX+5) + ALPHA*Y5
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Y(IPX+6) = Y(IPX+6) + ALPHA*Y6
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ELSE IF (NPG.EQ.8) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = ZERO
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Y4 = ZERO
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Y5 = ZERO
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Y6 = ZERO
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Y7 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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Y4 = Y4 + A(I+4)*X(KA(I+4))
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Y5 = Y5 + A(I+5)*X(KA(I+5))
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Y6 = Y6 + A(I+6)*X(KA(I+6))
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Y7 = Y7 + A(I+7)*X(KA(I+7))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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Y(IPX+4) = Y(IPX+4) + ALPHA*Y4
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Y(IPX+5) = Y(IPX+5) + ALPHA*Y5
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Y(IPX+6) = Y(IPX+6) + ALPHA*Y6
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Y(IPX+7) = Y(IPX+7) + ALPHA*Y7
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ELSE IF (NPG.EQ.16) THEN
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IPX = IA(1,IPG)
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Y0 = ZERO
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Y1 = ZERO
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Y2 = ZERO
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Y3 = ZERO
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Y4 = ZERO
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Y5 = ZERO
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Y6 = ZERO
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Y7 = ZERO
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Y8 = ZERO
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Y9 = ZERO
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Y10 = ZERO
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Y11 = ZERO
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Y12 = ZERO
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Y13 = ZERO
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Y14 = ZERO
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Y15 = 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 = Y0 + A(I+0)*X(KA(I+0))
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Y1 = Y1 + A(I+1)*X(KA(I+1))
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Y2 = Y2 + A(I+2)*X(KA(I+2))
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Y3 = Y3 + A(I+3)*X(KA(I+3))
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Y4 = Y4 + A(I+4)*X(KA(I+4))
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Y5 = Y5 + A(I+5)*X(KA(I+5))
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Y6 = Y6 + A(I+6)*X(KA(I+6))
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Y7 = Y7 + A(I+7)*X(KA(I+7))
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Y8 = Y8 + A(I+8)*X(KA(I+8))
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Y9 = Y9 + A(I+9)*X(KA(I+9))
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Y10 = Y10 + A(I+10)*X(KA(I+10))
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Y11 = Y11 + A(I+11)*X(KA(I+11))
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Y12 = Y12 + A(I+12)*X(KA(I+12))
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Y13 = Y13 + A(I+13)*X(KA(I+13))
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Y14 = Y14 + A(I+14)*X(KA(I+14))
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Y15 = Y15 + A(I+15)*X(KA(I+15))
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ENDDO
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Y(IPX+0) = Y(IPX+0) + ALPHA*Y0
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Y(IPX+1) = Y(IPX+1) + ALPHA*Y1
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Y(IPX+2) = Y(IPX+2) + ALPHA*Y2
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Y(IPX+3) = Y(IPX+3) + ALPHA*Y3
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Y(IPX+4) = Y(IPX+4) + ALPHA*Y4
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Y(IPX+5) = Y(IPX+5) + ALPHA*Y5
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Y(IPX+6) = Y(IPX+6) + ALPHA*Y6
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Y(IPX+7) = Y(IPX+7) + ALPHA*Y7
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Y(IPX+8) = Y(IPX+8) + ALPHA*Y8
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Y(IPX+9) = Y(IPX+9) + ALPHA*Y9
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Y(IPX+10) = Y(IPX+10) + ALPHA*Y10
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Y(IPX+11) = Y(IPX+11) + ALPHA*Y11
|
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|
|
Y(IPX+12) = Y(IPX+12) + ALPHA*Y12
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|
|
Y(IPX+13) = Y(IPX+13) + ALPHA*Y13
|
|
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|
|
Y(IPX+14) = Y(IPX+14) + ALPHA*Y14
|
|
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|
Y(IPX+15) = Y(IPX+15) + ALPHA*Y15
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|
ELSE
|
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|
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|
|
DO K = IA(2,IPG), IA(3,IPG)-1
|
|
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|
|
IPX = IA(1,IPG)
|
|
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|
|
DO I = JA(K), JA(K+1) - 1
|
|
|
|
|
Y(IPX) = Y(IPX) + ALPHA*A(I)*X(KA(I))
|
|
|
|
|
IPX = IPX + 1
|
|
|
|
|
ENDDO
|
|
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|
|
ENDDO
|
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|
END IF
|
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|
|
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) = Y(IPX) + ALPHA*A(I)*X(KA(I))
|
|
|
|
|
60 CONTINUE
|
|
|
|
|
IPX = IPX + 1
|
|
|
|
|
70 CONTINUE
|
|
|
|
|
200 CONTINUE
|
|
|
|
|
c
|
|
|
|
|
RETURN
|
|
|
|
|
END
|
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|
