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79 lines
3.0 KiB
Fortran
79 lines
3.0 KiB
Fortran
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 DCOJDUPD(M, N, DESCRA, A, IA1,
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+ IA2, INFOA, IA, JA, DESCRH, H, IH1, IH2,
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+ INFOH, IH, JH, FLAG, GLOB_TO_LOC,
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+ IWORK, LIWORK, IERROR)
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C
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C .. Matrix A to be updated is required to be stored with
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C .. column indices belonging to the same row ordered.
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C .. Block H to be inserted don't need to be stored in such a way.
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C
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C Flag = 0: put elements to 0.0D0;
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C Flag = 1: replace elements with new value;
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C Flag = 2: sum block value to elements;
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C
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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 IA, JA, IH, JH, M, N,
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+ IERROR, FLAG, LIWORK
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C .. Array Arguments ..
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INTEGER IA1(*),IA2(*),IH1(*),IH2(*),
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+ INFOA(*),INFOH(*),IWORK(*),
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+ GLOB_TO_LOC(*)
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CHARACTER DESCRA*11,DESCRH*11
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DOUBLE PRECISION A(*),H(*)
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C .. Local scalars ..
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INTEGER J, NNZ, IP1, NNZI
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C .. Local arrays ..
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IERROR = 0
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IF (IBITS(INFOA(PSB_UPD_),2,1).EQ.1) THEN
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C
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C Smart update capability
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C
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IP1 = INFOA(PSB_UPD_PNT_)
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NNZ = IA1(IP1+PSB_NNZ_)
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NNZI = INFOH(1)
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DO J = 1, NNZI
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NNZ = NNZ + 1
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A(NNZ) = H(J)
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ENDDO
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IA1(IP1+PSB_NNZ_) = NNZ
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ELSE
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IERROR = 2
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ENDIF
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9999 CONTINUE
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RETURN
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END
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