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Salvatore Filippone
19 years ago
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C
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C Parallel Sparse BLAS v2.0
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C (C) Copyright 2006 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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SUBROUTINE DCRINCO(M,N,DESCRA,A,IA1,IA2,
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+ INFOA,IA,JA,LATOT,LIA1TOT,LIA2TOT,
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+ DESCRH,H,IH1,IH2,INFOH,IH,JH,WORK,LWORK,IERRV)
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IMPLICIT NONE
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INCLUDE 'psb_const.fh'
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C .. Scalar Arguments ..
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INTEGER LWORK, M, N
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INTEGER LATOT,LIA1TOT,LIA2TOT,IA,JA,IH,JH
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C .. Array Arguments ..
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DOUBLE PRECISION A(*), H(*), WORK(LWORK)
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INTEGER IA1(*), IA2(*), IH1(*), IH2(*),
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+ INFOA(*), INFOH(*), IERRV(*)
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CHARACTER DESCRA*11, DESCRH*11
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C .. Local scalars ..
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INTEGER I, J, NZA, nzh
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logical debug
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parameter (debug=.false.)
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IERRV(1) = 0
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nza = infoa(nnz_)
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nzh = ih2(ih+m)-ih2(ih)
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if ((nza+nzh).le.min(latot,lia1tot,lia2tot)) then
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C
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C In this case we are (hopefully) safe
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C
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DO I = IH, IH+M-1
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if (debug) write(0,*) 'DCRINCO: loop ',i,ih2(i),ih2(i+1)
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DO J = IH2(I), IH2(I+1)-1
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IF ((IH1(J).GE.JH).AND.(IH1(J).LT.JH+N)) THEN
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C If current element belongs to submatrix to insert
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nza = nza +1
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A(nza) = H(J)
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IA1(nza) = I+IA-IH
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IA2(nza) = IH1(J)+JA-JH
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ELSE
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if (debug) then
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write(*,*) 'DCRINCO: out of range',jh,ih1(j),jh+n
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endif
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ENDIF
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ENDDO
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ENDDO
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else
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C
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C Slow but safe
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C
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if (debug) write(0,*) 'DCRINCO: ',m,ih,jh,infoa(nnz_)
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C Insert Element in COO Format
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DO I = IH, IH+M-1
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if (debug) write(0,*) 'DCRINCO: loop ',i,ih2(i),ih2(i+1)
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DO J = IH2(I), IH2(I+1)-1
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IF ((IH1(J).GE.JH).AND.(IH1(J).LT.JH+N)) THEN
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C If current element belongs to submatrix to insert
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nza = nza +1
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IF ((nza.le.LATOT) .and.(nza.le.LIA1TOT)
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+ .and.(nza.le.LIA2TOT)) THEN
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A(nza) = H(J)
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IA1(nza) = I+IA-IH
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IA2(nza) = IH1(J)+JA-JH
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if (debug) then
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write(*,*) 'DCRINCO: ',j,h(j),i+ia-ih,ih1(j)+ja-jh
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endif
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else
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IF (nza.GT.LATOT) THEN
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IERRV(1) = 10
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IERRV(2) = nza
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ELSE IF (nza.GT.LIA1TOT) THEN
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IERRV(1) = 20
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IERRV(2) = nza
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ELSE IF (nza.GT.LIA2TOT) THEN
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IERRV(1) = 30
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IERRV(2) = nza
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ENDIF
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RETURN
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endif
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ELSE
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if (debug) then
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write(*,*) 'DCRINCO: out of range',jh,ih1(j),jh+n
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endif
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ENDIF
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ENDDO
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ENDDO
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endif
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infoa(nnz_) = nza
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return
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END
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