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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 DGINDEX(M,N_BLOCKS,A,IA1,IA2,infoa,ARN,KA,IA,JA, INFON,
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+ LARN,LKA,LJA,IPERM,WORK, LWORK, SIZE_REQ, IERROR)
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use psb_const_mod
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use psb_spmat_type
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IMPLICIT NONE
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C ... Scalar arguments ...
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INTEGER M, LWORK,N_BLOCKS,LARN,LKA,LJA,
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+ SIZE_REQ,IERROR
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C ... Array arguments ...
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DOUBLE PRECISION A(*), ARN(LARN)
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INTEGER IA1(*), IA2(*), KA(LKA),
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+ IA(3,*), IPERM(*), JA(LJA), WORK(*),INFON(*), infoa(*)
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C .... Local scalars ...
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INTEGER I, J, BLOCK, ROW, COL, POINT_AR, POINT_JA, IP1,
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+ IP2, IPX, NNZ, DIM_BLOCK, LIMIT, IPW,COUNT, IPC,CHECK_FLAG,
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+ ERR_ACT, ix, regen_flag
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LOGICAL CSR
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c .. Local Arrays ..
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CHARACTER*20 NAME
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INTEGER INT_VAL(5)
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NAME = 'DGINDEX\0'
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IERROR = 0
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CALL FCPSB_ERRACTIONSAVE(ERR_ACT)
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POINT_AR = 1
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POINT_JA = 0
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call psb_getifield(check_flag,psb_dupl_,infon,psb_ifasize_,ierror)
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call psb_getifield(regen_flag,psb_upd_,infon,psb_ifasize_,ierror)
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IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR)) THEN
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IERROR = 60
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INT_VAL(1) = 11
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INT_VAL(2) = POINT_AR
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INT_VAL(3) = LARN
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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NNZ = IA2(M + 1) - 1
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COUNT = 0
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C .... Invert Permutation Matrix...
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IF (IPERM(1).NE.0) THEN
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DO I = 1, M
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WORK(IPERM(I)) = I
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ENDDO
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ENDIF
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size_Req=0
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IF ( (regen_flag == psb_upd_perm_)
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+ .AND. (LWORK .GE. (M + NNZ+2))) THEN
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C
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C Prepare for smart regeneration
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C
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IPW = M + 2
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IP1 = (LKA-PSB_IREG_FLGS_-2)/2
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IP2 = IP1+PSB_IREG_FLGS_
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IPC = IP2 + NNZ + 1
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KA(IP1 + PSB_IPC_) = IPC
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KA(IP1+PSB_IP2_) = IP2
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INFON(PSB_UPD_PNT_) = IP1
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KA(IP1+PSB_IFLAG_) = CHECK_FLAG
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KA(IP1+PSB_NNZT_) = NNZ
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KA(IP1+PSB_NNZ_) = 0
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KA(IP1+PSB_ICHK_) = NNZ+CHECK_FLAG
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if (infoa(psb_upd_pnt_) > 0) then
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I = infoa(psb_upd_pnt_)
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IPX = IA2(I+PSB_IP2_)
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C Invert permutation for smart regeneration
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DO I = 1, NNZ
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WORK(IPW + IA2(IPX + I -1) - 1) = I
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ENDDO
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else
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! No permutation available before, set identity.
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DO I = 1, NNZ
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WORK(IPW + I - 1) = I
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ENDDO
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endif
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C Construct JAD matrix...
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DO BLOCK = 1, N_BLOCKS
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COL = 1
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DIM_BLOCK = IA(1,BLOCK+1)-IA(1,BLOCK)
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c$$$ write(0,*) 'DGINDEX: BLOCK LOOP ',block,n_blocks,dim_block
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if (dim_block .gt. PSB_MAXJDROWS_) then
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write(0,*) 'Wrong value for dim_block',block,
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+ IA(1,BLOCK+1),IA(1,BLOCK)
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return
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endif
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LIMIT = INT(DIM_BLOCK*PSB_PERCENT_)
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POINT_JA = POINT_JA+1
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IF (LJA.LT.POINT_JA) THEN
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IERROR = 60
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INT_VAL(1) = 13
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INT_VAL(2) = POINT_JA
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INT_VAL(3) = LJA
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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IA(2,BLOCK) = POINT_JA
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JA(POINT_JA) = POINT_AR
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CSR = .FALSE.
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IF (DIM_BLOCK.NE.0) THEN
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C ... If current block is not empty ...
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C ... For each Column belonging to Block ...
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DO WHILE(.TRUE.)
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C ... For each row belonging to the block BLOCK ...
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DO I = IA(1,BLOCK), IA(1,BLOCK+1)-1
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IF (IPERM(1).EQ.0) THEN
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ROW = I
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ELSE
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ROW = WORK(I)
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ENDIF
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C ... If the current row is too short ...
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IF (IA2(ROW)+COL-1.GE.IA2(ROW+1)) THEN
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C ... Switch to CSR representation ...
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IF (I.LE.IA(1,BLOCK)+LIMIT) THEN
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CSR=.TRUE.
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POINT_AR = POINT_AR - I + IA(1,BLOCK)
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GOTO 998
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ELSE
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COUNT = COUNT + 1
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ARN(POINT_AR) = 0.D0
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KA(POINT_AR) = KA(POINT_AR-1)
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IF(POINT_AR.LT.IP1) THEN
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KA(IPC + COUNT -1) = POINT_AR
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ENDIF
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C
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C The following statement assumes that we never get here with POINT_AR=1
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C
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POINT_AR = POINT_AR+1
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IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR))
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+ THEN
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IERROR = 60
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INT_VAL(1) = 11
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INT_VAL(2) = POINT_AR
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INT_VAL(3) = LARN
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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ENDIF
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ELSE
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ARN(POINT_AR) = A(IA2(ROW)+COL-1)
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KA(POINT_AR) = IA1(IA2(ROW)+COL-1)
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IF(POINT_AR.LT.IP1) THEN
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KA(IP2 + WORK(IPW +
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+ IA2(ROW) +COL -1-1)-1) = POINT_AR
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ENDIF
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POINT_AR = POINT_AR+1
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IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR))
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+ THEN
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IERROR = 60
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INT_VAL(1) = 11
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INT_VAL(2) = POINT_AR
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INT_VAL(3) = LARN
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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ENDIF
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ENDDO
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IF (CSR) GOTO 998
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IF (LJA.LT.POINT_JA+COL) THEN
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IERROR = 60
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INT_VAL(1) = 13
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INT_VAL(2) = POINT_JA
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INT_VAL(3) = LJA
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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IF(IERROR.EQ.0) THEN
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JA(POINT_JA+COL) = POINT_AR
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ENDIF
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COL = COL+1
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ENDDO
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ENDIF
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998 CONTINUE
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POINT_JA = POINT_JA+COL-1
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IF (LJA.LT.POINT_JA) THEN
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IERROR = 60
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INT_VAL(1) = 13
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INT_VAL(2) = POINT_JA
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INT_VAL(3) = LJA
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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IA(3,BLOCK) = POINT_JA
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C ... Start CSR Format ...
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C ... For each row belonging to the block BLOCK ...
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DO I = IA(1,BLOCK), IA(1,BLOCK+1)-1
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IF (IPERM(1).EQ.0) THEN
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ROW = I
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ELSE
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ROW = WORK(I)
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ENDIF
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C ... For each nnzero elements belonging to current row ...
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DO J = IA2(ROW)+COL-1, IA2(ROW+1)-1
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ARN(POINT_AR) = A(J)
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KA (POINT_AR) = IA1(J)
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IF (POINT_AR.LT.IP1) THEN
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KA(IP2 + WORK(IPW + J-1)-1) = POINT_AR
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ENDIF
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POINT_AR = POINT_AR+1
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IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR)) THEN
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IERROR = 60
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INT_VAL(1) = 11
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INT_VAL(2) = POINT_AR
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INT_VAL(3) = LARN
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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ENDDO
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POINT_JA = POINT_JA+1
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IF (LJA.LT.POINT_JA) THEN
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IERROR = 60
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INT_VAL(1) = 13
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INT_VAL(2) = POINT_JA
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INT_VAL(3) = LJA
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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JA(POINT_JA) = POINT_AR
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ENDDO
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ENDDO
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IA(2,N_BLOCKS+1) = POINT_JA
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KA(IP1 + PSB_ZERO_) = COUNT
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IF (POINT_AR.GE.IP1) THEN
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SIZE_REQ=NNZ+COUNT
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ELSE
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SIZE_REQ=0
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ENDIF
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ELSE
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c$$$ c write(*,*)'inizio a ciclare sui blocchi'
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IP1 = LKA - PSB_ZERO_
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DO BLOCK = 1, N_BLOCKS
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COL = 1
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DIM_BLOCK = IA(1,BLOCK+1)-IA(1,BLOCK)
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LIMIT = INT(DIM_BLOCK*PSB_PERCENT_)
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POINT_JA = POINT_JA+1
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IF (LJA.LT.POINT_JA) THEN
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IERROR = 60
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INT_VAL(1) = 13
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INT_VAL(2) = POINT_JA
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INT_VAL(3) = LJA
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CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
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GOTO 9999
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ENDIF
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IA(2,BLOCK) = POINT_JA
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JA(POINT_JA) = POINT_AR
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CSR = .FALSE.
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IF (DIM_BLOCK.NE.0) THEN
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C ... If current block is not empty ...
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C ... For each Column belonging to Block ...
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DO WHILE(.TRUE.)
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C ... For each row belonging to the block BLOCK ...
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DO I = IA(1,BLOCK), IA(1,BLOCK+1)-1
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IF (IPERM(1).EQ.0) THEN
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ROW = I
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ELSE
|
|
|
|
|
ROW = WORK(I)
|
|
|
|
|
ENDIF
|
|
|
|
|
|
|
|
|
|
C ... If the current row is too short ...
|
|
|
|
|
IF (IA2(ROW)+COL-1.GE.IA2(ROW+1)) THEN
|
|
|
|
|
C ... Switch to CSR representation ...
|
|
|
|
|
IF (I.LE.IA(1,BLOCK)+LIMIT) THEN
|
|
|
|
|
CSR=.TRUE.
|
|
|
|
|
POINT_AR = POINT_AR - I + IA(1,BLOCK)
|
|
|
|
|
GOTO 999
|
|
|
|
|
ELSE
|
|
|
|
|
COUNT= COUNT+1
|
|
|
|
|
ARN(POINT_AR) = 0.D0
|
|
|
|
|
KA (POINT_AR) = KA(POINT_AR-1)
|
|
|
|
|
C
|
|
|
|
|
C The following statement assumes that we never get here with POINT_AR=1
|
|
|
|
|
C
|
|
|
|
|
POINT_AR = POINT_AR+1
|
|
|
|
|
IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR))
|
|
|
|
|
+ THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 11
|
|
|
|
|
INT_VAL(2) = POINT_AR
|
|
|
|
|
INT_VAL(3) = LARN
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
ENDIF
|
|
|
|
|
ELSE
|
|
|
|
|
ARN(POINT_AR) = A(IA2(ROW)+COL-1)
|
|
|
|
|
KA (POINT_AR) = IA1(IA2(ROW)+COL-1)
|
|
|
|
|
POINT_AR = POINT_AR+1
|
|
|
|
|
IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR))
|
|
|
|
|
+ THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 11
|
|
|
|
|
INT_VAL(2) = POINT_AR
|
|
|
|
|
INT_VAL(3) = LARN
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
ENDIF
|
|
|
|
|
ENDDO
|
|
|
|
|
|
|
|
|
|
IF (CSR) GOTO 999
|
|
|
|
|
|
|
|
|
|
IF (LJA.LT.POINT_JA+COL) THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 13
|
|
|
|
|
INT_VAL(2) = POINT_JA
|
|
|
|
|
INT_VAL(3) = LJA
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
|
|
|
|
|
JA(POINT_JA+COL) = POINT_AR
|
|
|
|
|
COL = COL+1
|
|
|
|
|
ENDDO
|
|
|
|
|
|
|
|
|
|
ENDIF
|
|
|
|
|
999 CONTINUE
|
|
|
|
|
|
|
|
|
|
POINT_JA = POINT_JA+COL-1
|
|
|
|
|
|
|
|
|
|
IF (LJA.LT.POINT_JA) THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 13
|
|
|
|
|
INT_VAL(2) = POINT_JA
|
|
|
|
|
INT_VAL(3) = LJA
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
|
|
|
|
|
IA(3,BLOCK) = POINT_JA
|
|
|
|
|
|
|
|
|
|
C ... Start CSR Format ...
|
|
|
|
|
|
|
|
|
|
C ... For each row belonging to the block BLOCK ...
|
|
|
|
|
DO I = IA(1,BLOCK), IA(1,BLOCK+1)-1
|
|
|
|
|
IF (IPERM(1).EQ.0) THEN
|
|
|
|
|
ROW = I
|
|
|
|
|
ELSE
|
|
|
|
|
ROW = WORK(I)
|
|
|
|
|
ENDIF
|
|
|
|
|
|
|
|
|
|
C ... For each nnzero elements belonging to current row ...
|
|
|
|
|
DO J = IA2(ROW)+COL-1, IA2(ROW+1)-1
|
|
|
|
|
ARN(POINT_AR) = A(J)
|
|
|
|
|
KA (POINT_AR) = IA1(J)
|
|
|
|
|
POINT_AR = POINT_AR+1
|
|
|
|
|
IF ((LARN.LT.POINT_AR).OR.(LKA.LT.POINT_AR)) THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 11
|
|
|
|
|
INT_VAL(2) = POINT_AR
|
|
|
|
|
INT_VAL(3) = LARN
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
ENDDO
|
|
|
|
|
|
|
|
|
|
POINT_JA = POINT_JA+1
|
|
|
|
|
IF (LJA.LT.POINT_JA) THEN
|
|
|
|
|
IERROR = 60
|
|
|
|
|
INT_VAL(1) = 13
|
|
|
|
|
INT_VAL(2) = POINT_JA
|
|
|
|
|
INT_VAL(3) = LJA
|
|
|
|
|
CALL FCPSB_ERRPUSH(IERROR,NAME,INT_VAL)
|
|
|
|
|
GOTO 9999
|
|
|
|
|
ENDIF
|
|
|
|
|
JA(POINT_JA) = POINT_AR
|
|
|
|
|
ENDDO
|
|
|
|
|
ENDDO
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IA(2,N_BLOCKS+1) = POINT_JA
|
|
|
|
|
|
|
|
|
|
IF (POINT_AR.GE.lka) THEN
|
|
|
|
|
SIZE_REQ=NNZ+COUNT
|
|
|
|
|
ELSE
|
|
|
|
|
SIZE_REQ=0
|
|
|
|
|
ENDIF
|
|
|
|
|
ENDIF
|
|
|
|
|
|
|
|
|
|
infon(1)=point_ar-1
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
