C*********************************************************************** C*********************************************************************** C C Version: 0.3 C Last modified: December 27, 1994 C Authors: Esmond G. Ng and Barry W. Peyton C C Mathematical Sciences Section, Oak Ridge National Laboratory C C*********************************************************************** C*********************************************************************** C C ------------------------------------------------------ C INPUT NUMERICAL VALUES INTO SPARSE DATA STRUCTURES ... C ------------------------------------------------------ C SUBROUTINE INPNV ( NEQNS, XADJF, ADJF, ANZF, PERM, INVP, & NSUPER, XSUPER, XLINDX, LINDX, & XLNZ, LNZ, OFFSET ) C INTEGER XADJF(*), ADJF(*) DOUBLE PRECISION ANZF(*) INTEGER PERM(*), INVP(*) INTEGER NEQNS, NSUPER INTEGER XSUPER(*), XLINDX(*), LINDX(*) INTEGER XLNZ(*) DOUBLE PRECISION LNZ(*) INTEGER OFFSET(*) C INTEGER I, II, J, JLEN, JSUPER, LAST, OLDJ C DO 500 JSUPER = 1, NSUPER C C ---------------------------------------- C FOR EACH SUPERNODE, DO THE FOLLOWING ... C ---------------------------------------- C C ----------------------------------------------- C FIRST GET OFFSET TO FACILITATE NUMERICAL INPUT. C ----------------------------------------------- JLEN = XLINDX(JSUPER+1) - XLINDX(JSUPER) DO 100 II = XLINDX(JSUPER), XLINDX(JSUPER+1)-1 I = LINDX(II) JLEN = JLEN - 1 OFFSET(I) = JLEN 100 CONTINUE C DO 400 J = XSUPER(JSUPER), XSUPER(JSUPER+1)-1 C ----------------------------------------- C FOR EACH COLUMN IN THE CURRENT SUPERNODE, C FIRST INITIALIZE THE DATA STRUCTURE. C ----------------------------------------- DO 200 II = XLNZ(J), XLNZ(J+1)-1 LNZ(II) = 0.0 200 CONTINUE C C ----------------------------------- C NEXT INPUT THE INDIVIDUAL NONZEROS. C ----------------------------------- OLDJ = PERM(J) LAST = XLNZ(J+1) - 1 DO 300 II = XADJF(OLDJ), XADJF(OLDJ+1)-1 I = INVP(ADJF(II)) IF ( I .GE. J ) THEN LNZ(LAST-OFFSET(I)) = ANZF(II) ENDIF 300 CONTINUE 400 CONTINUE C 500 CONTINUE RETURN END