NM_Status
SpoolesSolver :: solve(SparseMtrx *A, FloatArray *b, FloatArray *x)
{
    int errorValue, mtxType, symmetryflag;
    int seed = 30145, pivotingflag = 0;
    int *oldToNew, *newToOld;
    double droptol = 0.0, tau = 1.e300;
    double cpus [ 10 ];
    int stats [ 20 ];

    ChvManager *chvmanager;
    Chv *rootchv;
    InpMtx *mtxA;
    DenseMtx *mtxY, *mtxX;

    // first check whether Lhs is defined
    if ( !A ) {
        _error("solveYourselfAt: unknown Lhs");
    }

    // and whether Rhs
    if ( !b ) {
        _error("solveYourselfAt: unknown Rhs");
    }

    // and whether previous Solution exist
    if ( !x ) {
        _error("solveYourselfAt: unknown solution array");
    }

    if ( x->giveSize() != b->giveSize() ) {
        _error("solveYourselfAt: size mismatch");
    }

    Timer timer;
    timer.startTimer();

    if ( A->giveType() != SMT_SpoolesMtrx ) {
        _error("solveYourselfAt: SpoolesSparseMtrx Expected");
    }

    mtxA = ( ( SpoolesSparseMtrx * ) A )->giveInpMtrx();
    mtxType = ( ( SpoolesSparseMtrx * ) A )->giveValueType();
    symmetryflag = ( ( SpoolesSparseMtrx * ) A )->giveSymmetryFlag();

    int i;
    int neqns = A->giveNumberOfRows();
    int nrhs = 1;
    /* convert right-hand side to DenseMtx */
    mtxY = DenseMtx_new();
    DenseMtx_init(mtxY, mtxType, 0, 0, neqns, nrhs, 1, neqns);
    DenseMtx_zero(mtxY);
    for ( i = 0; i < neqns; i++ ) {
        DenseMtx_setRealEntry( mtxY, i, 0, b->at(i + 1) );
    }

    if ( ( Lhs != A ) || ( this->lhsVersion != A->giveVersion() ) ) {
        //
        // lhs has been changed -> new factorization
        //

        Lhs = A;
        this->lhsVersion = A->giveVersion();

        if ( frontmtx ) {
            FrontMtx_free(frontmtx);
        }

        if ( newToOldIV ) {
            IV_free(newToOldIV);
        }

        if ( oldToNewIV ) {
            IV_free(oldToNewIV);
        }

        if ( frontETree ) {
            ETree_free(frontETree);
        }

        if ( symbfacIVL ) {
            IVL_free(symbfacIVL);
        }

        if ( mtxmanager ) {
            SubMtxManager_free(mtxmanager);
        }

        if ( graph ) {
            Graph_free(graph);
        }

        /*
         * -------------------------------------------------
         * STEP 3 : find a low-fill ordering
         * (1) create the Graph object
         * (2) order the graph using multiple minimum degree
         * -------------------------------------------------
         */
        int nedges;
        graph = Graph_new();
        adjIVL = InpMtx_fullAdjacency(mtxA);
        nedges = IVL_tsize(adjIVL);
        Graph_init2(graph, 0, neqns, 0, nedges, neqns, nedges, adjIVL,
                    NULL, NULL);
        if ( msglvl > 2 ) {
            fprintf(msgFile, "\n\n graph of the input matrix");
            Graph_writeForHumanEye(graph, msgFile);
            fflush(msgFile);
        }

        frontETree = orderViaMMD(graph, seed, msglvl, msgFile);
        if ( msglvl > 0 ) {
            fprintf(msgFile, "\n\n front tree from ordering");
            ETree_writeForHumanEye(frontETree, msgFile);
            fflush(msgFile);
        }

        /*
         * ----------------------------------------------------
         * STEP 4: get the permutation, permute the front tree,
         * permute the matrix and right hand side, and
         * get the symbolic factorization
         * ----------------------------------------------------
         */
        oldToNewIV = ETree_oldToNewVtxPerm(frontETree);
        oldToNew   = IV_entries(oldToNewIV);
        newToOldIV = ETree_newToOldVtxPerm(frontETree);
        newToOld   = IV_entries(newToOldIV);
        ETree_permuteVertices(frontETree, oldToNewIV);
        InpMtx_permute(mtxA, oldToNew, oldToNew);
        if (  symmetryflag == SPOOLES_SYMMETRIC ||
              symmetryflag == SPOOLES_HERMITIAN ) {
            InpMtx_mapToUpperTriangle(mtxA);
        }

        InpMtx_changeCoordType(mtxA, INPMTX_BY_CHEVRONS);
        InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS);
        symbfacIVL = SymbFac_initFromInpMtx(frontETree, mtxA);
        if ( msglvl > 2 ) {
            fprintf(msgFile, "\n\n old-to-new permutation vector");
            IV_writeForHumanEye(oldToNewIV, msgFile);
            fprintf(msgFile, "\n\n new-to-old permutation vector");
            IV_writeForHumanEye(newToOldIV, msgFile);
            fprintf(msgFile, "\n\n front tree after permutation");
            ETree_writeForHumanEye(frontETree, msgFile);
            fprintf(msgFile, "\n\n input matrix after permutation");
            InpMtx_writeForHumanEye(mtxA, msgFile);
            fprintf(msgFile, "\n\n symbolic factorization");
            IVL_writeForHumanEye(symbfacIVL, msgFile);
            fflush(msgFile);
        }

        Tree_writeToFile(frontETree->tree, (char*)"haggar.treef");
        /*--------------------------------------------------------------------*/
        /*
         * ------------------------------------------
         * STEP 5: initialize the front matrix object
         * ------------------------------------------
         */
        frontmtx   = FrontMtx_new();
        mtxmanager = SubMtxManager_new();
        SubMtxManager_init(mtxmanager, NO_LOCK, 0);
        FrontMtx_init(frontmtx, frontETree, symbfacIVL, mtxType, symmetryflag,
                      FRONTMTX_DENSE_FRONTS, pivotingflag, NO_LOCK, 0, NULL,
                      mtxmanager, msglvl, msgFile);
        /*--------------------------------------------------------------------*/
        /*
         * -----------------------------------------
         * STEP 6: compute the numeric factorization
         * -----------------------------------------
         */
        chvmanager = ChvManager_new();
        ChvManager_init(chvmanager, NO_LOCK, 1);
        DVfill(10, cpus, 0.0);
        IVfill(20, stats, 0);
        rootchv = FrontMtx_factorInpMtx(frontmtx, mtxA, tau, droptol,
                                        chvmanager, & errorValue, cpus, stats, msglvl, msgFile);
        ChvManager_free(chvmanager);
        if ( msglvl > 0 ) {
            fprintf(msgFile, "\n\n factor matrix");
            FrontMtx_writeForHumanEye(frontmtx, msgFile);
            fflush(msgFile);
        }

        if ( rootchv != NULL ) {
            fprintf(msgFile, "\n\n matrix found to be singular\n");
            exit(-1);
        }

        if ( errorValue >= 0 ) {
            fprintf(msgFile, "\n\n error encountered at front %d", errorValue);
            exit(-1);
        }

        /*--------------------------------------------------------------------*/
        /*
         * --------------------------------------
         * STEP 7: post-process the factorization
         * --------------------------------------
         */
        FrontMtx_postProcess(frontmtx, msglvl, msgFile);
        if ( msglvl > 2 ) {
            fprintf(msgFile, "\n\n factor matrix after post-processing");
            FrontMtx_writeForHumanEye(frontmtx, msgFile);
            fflush(msgFile);
        }

        /*--------------------------------------------------------------------*/
    }

    /*
     * ----------------------------------------------------
     * STEP 4: permute the right hand side
     * ----------------------------------------------------
     */
    DenseMtx_permuteRows(mtxY, oldToNewIV);
    if ( msglvl > 2 ) {
        fprintf(msgFile, "\n\n right hand side matrix after permutation");
        DenseMtx_writeForHumanEye(mtxY, msgFile);
    }

    /*
     * -------------------------------
     * STEP 8: solve the linear system
     * -------------------------------
     */
    mtxX = DenseMtx_new();
    DenseMtx_init(mtxX, mtxType, 0, 0, neqns, nrhs, 1, neqns);
    DenseMtx_zero(mtxX);
    FrontMtx_solve(frontmtx, mtxX, mtxY, mtxmanager,
                   cpus, msglvl, msgFile);
    if ( msglvl > 2 ) {
        fprintf(msgFile, "\n\n solution matrix in new ordering");
        DenseMtx_writeForHumanEye(mtxX, msgFile);
        fflush(msgFile);
    }

    /*--------------------------------------------------------------------*/
    /*
     * -------------------------------------------------------
     * STEP 9: permute the solution into the original ordering
     * -------------------------------------------------------
     */
    DenseMtx_permuteRows(mtxX, newToOldIV);
    if ( msglvl > 0 ) {
        fprintf(msgFile, "\n\n solution matrix in original ordering");
        DenseMtx_writeForHumanEye(mtxX, msgFile);
        fflush(msgFile);
    }

    // DenseMtx_writeForMatlab(mtxX, "x", msgFile) ;
    /*--------------------------------------------------------------------*/
    /* fetch data to oofem vectors */
    double *xptr = x->givePointer();
    for ( i = 0; i < neqns; i++ ) {
        DenseMtx_realEntry(mtxX, i, 0, xptr + i);
        // printf ("x(%d) = %e\n", i+1, *(xptr+i));
    }

    // DenseMtx_copyRowIntoVector(mtxX, 0, x->givePointer());

    timer.stopTimer();
    OOFEM_LOG_DEBUG( "SpoolesSolver info: user time consumed by solution: %.2fs\n", timer.getUtime() );

    /*
     * -----------
     * free memory
     * -----------
     */
    DenseMtx_free(mtxX);
    DenseMtx_free(mtxY);
    /*--------------------------------------------------------------------*/
    return ( 1 );
}
Exemple #2
0
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] ) {
/*
   --------------------------------------------------
   QR all-in-one program
   (1) read in matrix entries and form InpMtx object
       of A and A^TA
   (2) form Graph object of A^TA
   (3) order matrix and form front tree
   (4) get the permutation, permute the matrix and 
       front tree and get the symbolic factorization
   (5) compute the numeric factorization
   (6) read in right hand side entries
   (7) compute the solution

   created -- 98jun11, cca
   --------------------------------------------------
*/
/*--------------------------------------------------------------------*/
char            *matrixFileName, *rhsFileName ;
ChvManager      *chvmanager ;
DenseMtx        *mtxB, *mtxX ;
double          facops, imag, real, value ;
double          cpus[10] ;
ETree           *frontETree ;
FILE            *inputFile, *msgFile ;
FrontMtx        *frontmtx ;
Graph           *graph ;
int             ient, irow, jcol, jrhs, jrow, msglvl, neqns,
                nedges, nent, nrhs, nrow, seed, type ;
InpMtx          *mtxA ;
IV              *newToOldIV, *oldToNewIV ;
IVL             *adjIVL, *symbfacIVL ;
SubMtxManager   *mtxmanager ;
/*--------------------------------------------------------------------*/
/*
   --------------------
   get input parameters
   --------------------
*/
if ( argc != 7 ) {
   fprintf(stdout, 
      "\n usage: %s msglvl msgFile type matrixFileName rhsFileName seed"
      "\n    msglvl -- message level"
      "\n    msgFile -- message file"
      "\n    type    -- type of entries"
      "\n      1 (SPOOLES_REAL)    -- real entries"
      "\n      2 (SPOOLES_COMPLEX) -- complex entries"
      "\n    matrixFileName -- matrix file name, format"
      "\n       nrow ncol nent"
      "\n       irow jcol entry"
      "\n        ..."
      "\n        note: indices are zero based"
      "\n    rhsFileName -- right hand side file name, format"
      "\n       nrow "
      "\n       entry[0]"
      "\n       ..."
      "\n       entry[nrow-1]"
      "\n    seed -- random number seed, used for ordering"
      "\n", argv[0]) ;
   return(0) ;
}
msglvl = atoi(argv[1]) ;
if ( strcmp(argv[2], "stdout") == 0 ) {
   msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
   fprintf(stderr, "\n fatal error in %s"
           "\n unable to open file %s\n",
           argv[0], argv[2]) ;
   return(-1) ;
}
type           = atoi(argv[3]) ;
matrixFileName = argv[4] ;
rhsFileName    = argv[5] ;
seed           = atoi(argv[6]) ;
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------
   STEP 1: read the entries from the input file 
   and create the InpMtx object of A
   --------------------------------------------
*/
inputFile = fopen(matrixFileName, "r") ;
fscanf(inputFile, "%d %d %d", &nrow, &neqns, &nent) ;
mtxA = InpMtx_new() ;
InpMtx_init(mtxA, INPMTX_BY_ROWS, type, nent, 0) ;
if ( type == SPOOLES_REAL ) {
   for ( ient = 0 ; ient < nent ; ient++ ) {
      fscanf(inputFile, "%d %d %le", &irow, &jcol, &value) ;
      InpMtx_inputRealEntry(mtxA, irow, jcol, value) ;
   }
} else {
   for ( ient = 0 ; ient < nent ; ient++ ) {
      fscanf(inputFile, "%d %d %le %le", &irow, &jcol, &real, &imag) ;
      InpMtx_inputComplexEntry(mtxA, irow, jcol, real, imag) ;
   }
}
fclose(inputFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n input matrix") ;
   InpMtx_writeForHumanEye(mtxA, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   ----------------------------------------
   STEP 2: read the right hand side entries
   ----------------------------------------
*/
inputFile = fopen(rhsFileName, "r") ;
fscanf(inputFile, "%d %d", &nrow, &nrhs) ;
mtxB = DenseMtx_new() ;
DenseMtx_init(mtxB, type, 0, 0, nrow, nrhs, 1, nrow) ;
DenseMtx_zero(mtxB) ;
if ( type == SPOOLES_REAL ) {
   for ( irow = 0 ; irow < nrow ; irow++ ) {
      fscanf(inputFile, "%d", &jrow) ;
      for ( jrhs = 0 ; jrhs < nrhs ; jrhs++ ) {
         fscanf(inputFile, "%le", &value) ;
         DenseMtx_setRealEntry(mtxB, jrow, jrhs, value) ;
      }
   }
} else {
   for ( irow = 0 ; irow < nrow ; irow++ ) {
      fscanf(inputFile, "%d", &jrow) ;
      for ( jrhs = 0 ; jrhs < nrhs ; jrhs++ ) {
         fscanf(inputFile, "%le %le", &real, &imag) ;
         DenseMtx_setComplexEntry(mtxB, jrow, jrhs, real, imag) ;
      }
   }
}
fclose(inputFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n rhs matrix in original ordering") ;
   DenseMtx_writeForHumanEye(mtxB, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -------------------------------------------------
   STEP 3 : find a low-fill ordering
   (1) create the Graph object for A^TA or A^HA
   (2) order the graph using multiple minimum degree
   -------------------------------------------------
*/
graph = Graph_new() ;
adjIVL = InpMtx_adjForATA(mtxA) ;
nedges = IVL_tsize(adjIVL) ;
Graph_init2(graph, 0, neqns, 0, nedges, neqns, nedges, adjIVL,
            NULL, NULL) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n graph of A^T A") ;
   Graph_writeForHumanEye(graph, msgFile) ;
   fflush(msgFile) ;
}
frontETree = orderViaMMD(graph, seed, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n front tree from ordering") ;
   ETree_writeForHumanEye(frontETree, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -----------------------------------------------------
   STEP 4: get the permutation, permute the matrix and 
           front tree and get the symbolic factorization
   -----------------------------------------------------
*/
oldToNewIV = ETree_oldToNewVtxPerm(frontETree) ;
newToOldIV = ETree_newToOldVtxPerm(frontETree) ;
InpMtx_permute(mtxA, NULL, IV_entries(oldToNewIV)) ;
InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS) ;
symbfacIVL = SymbFac_initFromGraph(frontETree, graph) ;
IVL_overwrite(symbfacIVL, oldToNewIV) ;
IVL_sortUp(symbfacIVL) ;
ETree_permuteVertices(frontETree, oldToNewIV) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n old-to-new permutation vector") ;
   IV_writeForHumanEye(oldToNewIV, msgFile) ;
   fprintf(msgFile, "\n\n new-to-old permutation vector") ;
   IV_writeForHumanEye(newToOldIV, msgFile) ;
   fprintf(msgFile, "\n\n front tree after permutation") ;
   ETree_writeForHumanEye(frontETree, msgFile) ;
   fprintf(msgFile, "\n\n input matrix after permutation") ;
   InpMtx_writeForHumanEye(mtxA, msgFile) ;
   fprintf(msgFile, "\n\n symbolic factorization") ;
   IVL_writeForHumanEye(symbfacIVL, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   ------------------------------------------
   STEP 5: initialize the front matrix object
   ------------------------------------------
*/
frontmtx = FrontMtx_new() ;
mtxmanager = SubMtxManager_new() ;
SubMtxManager_init(mtxmanager, NO_LOCK, 0) ;
if ( type == SPOOLES_REAL ) {
   FrontMtx_init(frontmtx, frontETree, symbfacIVL, type, 
                 SPOOLES_SYMMETRIC, FRONTMTX_DENSE_FRONTS, 
                 SPOOLES_NO_PIVOTING, NO_LOCK, 0, NULL,
                 mtxmanager, msglvl, msgFile) ;
} else {
   FrontMtx_init(frontmtx, frontETree, symbfacIVL, type, 
                 SPOOLES_HERMITIAN, FRONTMTX_DENSE_FRONTS, 
                 SPOOLES_NO_PIVOTING, NO_LOCK, 0, NULL,
                 mtxmanager, msglvl, msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -----------------------------------------
   STEP 6: compute the numeric factorization
   -----------------------------------------
*/
chvmanager = ChvManager_new() ;
ChvManager_init(chvmanager, NO_LOCK, 1) ;
DVzero(10, cpus) ;
facops = 0.0 ;
FrontMtx_QR_factor(frontmtx, mtxA, chvmanager, 
                   cpus, &facops, msglvl, msgFile) ;
ChvManager_free(chvmanager) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n factor matrix") ;
   fprintf(msgFile, "\n facops = %9.2f", facops) ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   --------------------------------------
   STEP 7: post-process the factorization
   --------------------------------------
*/
FrontMtx_postProcess(frontmtx, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n factor matrix after post-processing") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -------------------------------
   STEP 8: solve the linear system
   -------------------------------
*/
mtxX = DenseMtx_new() ;
DenseMtx_init(mtxX, type, 0, 0, neqns, nrhs, 1, neqns) ;
FrontMtx_QR_solve(frontmtx, mtxA, mtxX, mtxB, mtxmanager,
                  cpus, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n solution matrix in new ordering") ;
   DenseMtx_writeForHumanEye(mtxX, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -------------------------------------------------------
   STEP 9: permute the solution into the original ordering
   -------------------------------------------------------
*/
DenseMtx_permuteRows(mtxX, newToOldIV) ;
if ( msglvl > 0 ) {
   fprintf(msgFile, "\n\n solution matrix in original ordering") ;
   DenseMtx_writeForHumanEye(mtxX, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   ------------------------
   free the working storage
   ------------------------
*/
InpMtx_free(mtxA) ;
FrontMtx_free(frontmtx) ;
Graph_free(graph) ;
DenseMtx_free(mtxX) ;
DenseMtx_free(mtxB) ;
ETree_free(frontETree) ;
IV_free(newToOldIV) ;
IV_free(oldToNewIV) ;
IVL_free(symbfacIVL) ;
SubMtxManager_free(mtxmanager) ;
/*--------------------------------------------------------------------*/
return(1) ; }
Exemple #3
0
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] ) {
/*
   --------------------------------------------------
   all-in-one program to solve A X = B
   using a multithreaded factorization and solve
   We use a patch-and-go strategy 
   for the factorization without pivoting
   (1) read in matrix entries and form DInpMtx object
   (2) form Graph object
   (3) order matrix and form front tree
   (4) get the permutation, permute the matrix and 
       front tree and get the symbolic factorization
   (5) compute the numeric factorization
   (6) read in right hand side entries
   (7) compute the solution

   created -- 98jun04, cca
   --------------------------------------------------
*/
/*--------------------------------------------------------------------*/
char            *matrixFileName, *rhsFileName ;
DenseMtx        *mtxB, *mtxX ;
Chv             *rootchv ;
ChvManager      *chvmanager ;
double          fudge, imag, real, tau = 100., toosmall, value ;
double          cpus[10] ;
DV              *cumopsDV ;
ETree           *frontETree ;
FrontMtx        *frontmtx ;
FILE            *inputFile, *msgFile ;
Graph           *graph ;
InpMtx          *mtxA ;
int             error, ient, irow, jcol, jrhs, jrow, lookahead, msglvl, 
                ncol, nedges, nent, neqns, nfront, nrhs, nrow, nthread,
                patchAndGoFlag, seed, 
                storeids, storevalues, symmetryflag, type ;
int             *newToOld, *oldToNew ;
int             stats[20] ;
IV              *newToOldIV, *oldToNewIV, *ownersIV ;
IVL             *adjIVL, *symbfacIVL ;
SolveMap        *solvemap ;
SubMtxManager   *mtxmanager  ;
/*--------------------------------------------------------------------*/
/*
   --------------------
   get input parameters
   --------------------
*/
if ( argc != 14 ) {
   fprintf(stdout, "\n"
      "\n usage: %s msglvl msgFile type symmetryflag patchAndGoFlag"
      "\n        fudge toosmall storeids storevalues"
      "\n        matrixFileName rhsFileName seed"
      "\n    msglvl -- message level"
      "\n    msgFile -- message file"
      "\n    type    -- type of entries"
      "\n      1 (SPOOLES_REAL)    -- real entries"
      "\n      2 (SPOOLES_COMPLEX) -- complex entries"
      "\n    symmetryflag -- type of matrix"
      "\n      0 (SPOOLES_SYMMETRIC)    -- symmetric entries"
      "\n      1 (SPOOLES_HERMITIAN)    -- Hermitian entries"
      "\n      2 (SPOOLES_NONSYMMETRIC) -- nonsymmetric entries"
      "\n    patchAndGoFlag -- flag for the patch-and-go strategy"
      "\n      0 -- none, stop factorization"
      "\n      1 -- optimization strategy"
      "\n      2 -- structural analysis strategy"
      "\n    fudge       -- perturbation parameter"
      "\n    toosmall    -- upper bound on a small pivot"
      "\n    storeids    -- flag to store ids of small pivots"
      "\n    storevalues -- flag to store perturbations"
      "\n    matrixFileName -- matrix file name, format"
      "\n       nrow ncol nent"
      "\n       irow jcol entry"
      "\n        ..."
      "\n        note: indices are zero based"
      "\n    rhsFileName -- right hand side file name, format"
      "\n       nrow nrhs "
      "\n       ..."
      "\n       jrow entry(jrow,0) ... entry(jrow,nrhs-1)"
      "\n       ..."
      "\n    seed    -- random number seed, used for ordering"
      "\n    nthread -- number of threads"
      "\n", argv[0]) ;
   return(0) ;
}
msglvl = atoi(argv[1]) ;
if ( strcmp(argv[2], "stdout") == 0 ) {
   msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
   fprintf(stderr, "\n fatal error in %s"
           "\n unable to open file %s\n",
           argv[0], argv[2]) ;
   return(-1) ;
}
type           = atoi(argv[3]) ;
symmetryflag   = atoi(argv[4]) ;
patchAndGoFlag = atoi(argv[5]) ;
fudge          = atof(argv[6]) ;
toosmall       = atof(argv[7]) ;
storeids       = atoi(argv[8]) ;
storevalues    = atoi(argv[9]) ;
matrixFileName = argv[10] ;
rhsFileName    = argv[11] ;
seed           = atoi(argv[12]) ;
nthread        = atoi(argv[13]) ;
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------
   STEP 1: read the entries from the input file 
           and create the InpMtx object
   --------------------------------------------
*/
if ( (inputFile = fopen(matrixFileName, "r")) == NULL ) {
   fprintf(stderr, "\n unable to open file %s", matrixFileName) ;
   spoolesFatal();
}
fscanf(inputFile, "%d %d %d", &nrow, &ncol, &nent) ;
neqns = nrow ;
mtxA = InpMtx_new() ;
InpMtx_init(mtxA, INPMTX_BY_ROWS, type, nent, 0) ;
if ( type == SPOOLES_REAL ) {
   for ( ient = 0 ; ient < nent ; ient++ ) {
      fscanf(inputFile, "%d %d %le", &irow, &jcol, &value) ;
      InpMtx_inputRealEntry(mtxA, irow, jcol, value) ;
   }
} else {
   for ( ient = 0 ; ient < nent ; ient++ ) {
      fscanf(inputFile, "%d %d %le %le", &irow, &jcol, &real, &imag) ;
      InpMtx_inputComplexEntry(mtxA, irow, jcol, real, imag) ;
   }
}
fclose(inputFile) ;
InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n input matrix") ;
   InpMtx_writeForHumanEye(mtxA, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -------------------------------------------------
   STEP 2 : find a low-fill ordering
   (1) create the Graph object
   (2) order the graph using multiple minimum degree
   -------------------------------------------------
*/
graph = Graph_new() ;
adjIVL = InpMtx_fullAdjacency(mtxA) ;
nedges = IVL_tsize(adjIVL) ;
Graph_init2(graph, 0, neqns, 0, nedges, neqns, nedges, adjIVL,
            NULL, NULL) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n graph of the input matrix") ;
   Graph_writeForHumanEye(graph, msgFile) ;
   fflush(msgFile) ;
}
frontETree = orderViaMMD(graph, seed, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n front tree from ordering") ;
   ETree_writeForHumanEye(frontETree, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -----------------------------------------------------
   STEP 3: get the permutation, permute the matrix and 
           front tree and get the symbolic factorization
   -----------------------------------------------------
*/
oldToNewIV = ETree_oldToNewVtxPerm(frontETree) ;
oldToNew = IV_entries(oldToNewIV) ;
newToOldIV = ETree_newToOldVtxPerm(frontETree) ;
newToOld   = IV_entries(newToOldIV) ;
ETree_permuteVertices(frontETree, oldToNewIV) ;
InpMtx_permute(mtxA, oldToNew, oldToNew) ;
InpMtx_mapToUpperTriangle(mtxA) ;
InpMtx_changeCoordType(mtxA, INPMTX_BY_CHEVRONS) ;
InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS) ;
symbfacIVL = SymbFac_initFromInpMtx(frontETree, mtxA) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n old-to-new permutation vector") ;
   IV_writeForHumanEye(oldToNewIV, msgFile) ;
   fprintf(msgFile, "\n\n new-to-old permutation vector") ;
   IV_writeForHumanEye(newToOldIV, msgFile) ;
   fprintf(msgFile, "\n\n front tree after permutation") ;
   ETree_writeForHumanEye(frontETree, msgFile) ;
   fprintf(msgFile, "\n\n input matrix after permutation") ;
   InpMtx_writeForHumanEye(mtxA, msgFile) ;
   fprintf(msgFile, "\n\n symbolic factorization") ;
   IVL_writeForHumanEye(symbfacIVL, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   ------------------------------------------
   STEP 4: initialize the front matrix object
      and the PatchAndGoInfo object to handle
      small pivots
   ------------------------------------------
*/
frontmtx = FrontMtx_new() ;
mtxmanager = SubMtxManager_new() ;
SubMtxManager_init(mtxmanager, LOCK_IN_PROCESS, 0) ;
FrontMtx_init(frontmtx, frontETree, symbfacIVL, type, symmetryflag, 
            FRONTMTX_DENSE_FRONTS, SPOOLES_NO_PIVOTING, LOCK_IN_PROCESS,
            0, NULL, mtxmanager, msglvl, msgFile) ;
if ( patchAndGoFlag == 1 ) {
   frontmtx->patchinfo = PatchAndGoInfo_new() ;
   PatchAndGoInfo_init(frontmtx->patchinfo, 1, toosmall, fudge,
                       storeids, storevalues) ;
} else if ( patchAndGoFlag == 2 ) {
   frontmtx->patchinfo = PatchAndGoInfo_new() ;
   PatchAndGoInfo_init(frontmtx->patchinfo, 2, toosmall, fudge,
                       storeids, storevalues) ;
}
/*--------------------------------------------------------------------*/
/*
   ------------------------------------------
   STEP 5: setup the domain decomposition map
   ------------------------------------------
*/
if ( nthread > (nfront = FrontMtx_nfront(frontmtx)) ) {
   nthread = nfront ;
}
cumopsDV = DV_new() ;
DV_init(cumopsDV, nthread, NULL) ;
ownersIV = ETree_ddMap(frontETree, type, symmetryflag,
                       cumopsDV, 1./(2.*nthread)) ;
DV_free(cumopsDV) ;
/*--------------------------------------------------------------------*/
/*
   -----------------------------------------------------
   STEP 6: compute the numeric factorization in parallel
   -----------------------------------------------------
*/
chvmanager = ChvManager_new() ;
ChvManager_init(chvmanager, LOCK_IN_PROCESS, 1) ;
DVfill(10, cpus, 0.0) ;
IVfill(20, stats, 0) ;
lookahead = 0 ;
rootchv = FrontMtx_MT_factorInpMtx(frontmtx, mtxA, tau, 0.0, 
                                 chvmanager, ownersIV, lookahead, 
                                 &error, cpus, stats, msglvl, msgFile) ;
if ( patchAndGoFlag == 1 ) {
   if ( frontmtx->patchinfo->fudgeIV != NULL ) {
      fprintf(msgFile, "\n small pivots found at these locations") ;
      IV_writeForHumanEye(frontmtx->patchinfo->fudgeIV, msgFile) ;
   }
   PatchAndGoInfo_free(frontmtx->patchinfo) ;
} else if ( patchAndGoFlag == 2 ) {
   if ( frontmtx->patchinfo->fudgeIV != NULL ) {
      fprintf(msgFile, "\n small pivots found at these locations") ;
      IV_writeForHumanEye(frontmtx->patchinfo->fudgeIV, msgFile) ;
   }
   if ( frontmtx->patchinfo->fudgeDV != NULL ) {
      fprintf(msgFile, "\n perturbations") ;
      DV_writeForHumanEye(frontmtx->patchinfo->fudgeDV, msgFile) ;
   }
   PatchAndGoInfo_free(frontmtx->patchinfo) ;
}
ChvManager_free(chvmanager) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n factor matrix") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
if ( rootchv != NULL ) {
   fprintf(msgFile, "\n\n matrix found to be singular\n") ;
   spoolesFatal();
}
if ( error >= 0 ) {
   fprintf(msgFile, "\n\n fatal error at front %d\n", error) ;
   spoolesFatal();
}
/*
   --------------------------------------
   STEP 7: post-process the factorization
   --------------------------------------
*/
FrontMtx_postProcess(frontmtx, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n factor matrix after post-processing") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -----------------------------------------
   STEP 8: read the right hand side matrix B
   -----------------------------------------
*/
if ( (inputFile = fopen(rhsFileName, "r")) == NULL ) {
   fprintf(stderr, "\n unable to open file %s", rhsFileName) ;
   spoolesFatal();
}
fscanf(inputFile, "%d %d", &nrow, &nrhs) ;
mtxB = DenseMtx_new() ;
DenseMtx_init(mtxB, type, 0, 0, neqns, nrhs, 1, neqns) ;
DenseMtx_zero(mtxB) ;
if ( type == SPOOLES_REAL ) {
   for ( irow = 0 ; irow < nrow ; irow++ ) {
      fscanf(inputFile, "%d", &jrow) ;
      for ( jrhs = 0 ; jrhs < nrhs ; jrhs++ ) {
         fscanf(inputFile, "%le", &value) ;
         DenseMtx_setRealEntry(mtxB, jrow, jrhs, value) ;
      }
   }
} else {
   for ( irow = 0 ; irow < nrow ; irow++ ) {
      fscanf(inputFile, "%d", &jrow) ;
      for ( jrhs = 0 ; jrhs < nrhs ; jrhs++ ) {
         fscanf(inputFile, "%le %le", &real, &imag) ;
         DenseMtx_setComplexEntry(mtxB, jrow, jrhs, real, imag) ;
      }
   }
}
fclose(inputFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n rhs matrix in original ordering") ;
   DenseMtx_writeForHumanEye(mtxB, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------------------------
   STEP 9: permute the right hand side into the original ordering
   --------------------------------------------------------------
*/
DenseMtx_permuteRows(mtxB, oldToNewIV) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n right hand side matrix in new ordering") ;
   DenseMtx_writeForHumanEye(mtxB, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------------------
   STEP 10: get the solve map object for the parallel solve
   --------------------------------------------------------
*/
solvemap = SolveMap_new() ;
SolveMap_ddMap(solvemap, type, FrontMtx_upperBlockIVL(frontmtx),
               FrontMtx_lowerBlockIVL(frontmtx), nthread, ownersIV, 
               FrontMtx_frontTree(frontmtx), seed, msglvl, msgFile) ;
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------
   STEP 11: solve the linear system in parallel
   --------------------------------------------
*/
mtxX = DenseMtx_new() ;
DenseMtx_init(mtxX, type, 0, 0, neqns, nrhs, 1, neqns) ;
DenseMtx_zero(mtxX) ;
FrontMtx_MT_solve(frontmtx, mtxX, mtxB, mtxmanager, solvemap,
                  cpus, msglvl, msgFile) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n solution matrix in new ordering") ;
   DenseMtx_writeForHumanEye(mtxX, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   --------------------------------------------------------
   STEP 12: permute the solution into the original ordering
   --------------------------------------------------------
*/
DenseMtx_permuteRows(mtxX, newToOldIV) ;
if ( msglvl > 0 ) {
   fprintf(msgFile, "\n\n solution matrix in original ordering") ;
   DenseMtx_writeForHumanEye(mtxX, msgFile) ;
   fflush(msgFile) ;
}
/*--------------------------------------------------------------------*/
/*
   -----------
   free memory
   -----------
*/
FrontMtx_free(frontmtx) ;
DenseMtx_free(mtxX) ;
DenseMtx_free(mtxB) ;
IV_free(newToOldIV) ;
IV_free(oldToNewIV) ;
InpMtx_free(mtxA) ;
ETree_free(frontETree) ;
IVL_free(symbfacIVL) ;
SubMtxManager_free(mtxmanager) ;
Graph_free(graph) ;
SolveMap_free(solvemap) ;
IV_free(ownersIV) ;
/*--------------------------------------------------------------------*/
return(1) ; }
Exemple #4
0
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
   -----------------------------------------------------
   test the factor method for a grid matrix
   (0) read in matrix from source file 
   (1) conver data matrix to InpMtx object if necessary
   (2) create Graph and ETree object if necessary
   (3) read in/create an ETree object
   (4) create a solution matrix object
   (5) multiply the solution with the matrix
       to get a right hand side matrix object
   (6) factor the matrix 
   (7) solve the system

   created   -- 98dec30, jwu
   -----------------------------------------------------
*/
{
char            etreeFileName[80], mtxFileName[80], *cpt, rhsFileName[80],
                srcFileName[80], ctemp[81], msgFileName[80], slnFileName[80] ;
Chv             *chv, *rootchv ;
ChvManager      *chvmanager ;
DenseMtx        *mtxB, *mtxQ, *mtxX, *mtxZ ;
double          one[2] = { 1.0, 0.0 } ;
FrontMtx        *frontmtx ;
InpMtx          *mtxA ;
SubMtxManager   *mtxmanager ;
double          cputotal, droptol, conv_tol, factorops ;
double          cpus[9] ;
Drand           drand ;
double          nops, tau, t1, t2   ;
ETree           *frontETree   ;
Graph           *graph ;
FILE            *msgFile, *inFile ;
int             error, loc, msglvl, neqns, nzf, iformat, 
                pivotingflag, rc, seed, sparsityflag, symmetryflag, 
                method[METHODS], type, nrhs, etreeflag ;
int             stats[6] ;
int             nnzA, Ik, itermax, zversion, iterout ;
IV              *newToOldIV, *oldToNewIV ;
IVL             *symbfacIVL ;
int             i, j, k, m, n, imethod, maxdomainsize, maxzeros, maxsize;
int             nouter,ninner ;

if ( argc != 2 ) {
   fprintf(stdout, 
"\n\n usage : %s inFile"
"\n    inFile       -- input filename"
"\n", argv[0]) ;
   return(-1) ;
}

/* read input file */
inFile = fopen(argv[1], "r");
if (inFile == (FILE *)NULL) {
  fprintf(stderr, "\n fatal error in %s: unable to open file %s\n",
           argv[0], argv[1]) ;
  return(-1) ;
}

for (i=0; i<METHODS; i++) method[i]=-1; 
imethod=0;
k=0;
while (1) {
  fgets(ctemp, 80, inFile);
  if (ctemp[0] != '*') {
    /*printf("l=%2d:%s\n", strlen(ctemp),ctemp);*/
    if (strlen(ctemp)==80) {
      fprintf(stderr, "\n fatal error in %s: input line contains more than "
	      "80 characters.\n",argv[0]);
      exit(-1);
    }
    if (k==0) {
      sscanf(ctemp, "%d",  &iformat);
      if (iformat < 0 || iformat > 2) {
	fprintf(stderr, "\n fatal error in %s: "
		"invalid source matrix format\n",argv[0]) ;
	return(-1) ;
      }
    }
    else if (k==1)
      sscanf(ctemp, "%s", srcFileName);
    else if (k==2)
      sscanf(ctemp, "%s", mtxFileName);
    else if (k==3) {
      sscanf(ctemp, "%d",  &etreeflag);
      if (etreeflag < 0 || etreeflag > 4) {
	fprintf(stderr, "\n fatal error in %s: "
                        "invalid etree file status\n",argv[0]) ;
	return(-1) ;
      }
    }
    else if (k==4)
      sscanf(ctemp, "%s", etreeFileName);
    else if (k==5)
      sscanf(ctemp, "%s", rhsFileName);
    else if (k==6)
      sscanf(ctemp, "%s", slnFileName);
    else if (k==7){
      sscanf(ctemp, "%s", msgFileName);
      if ( strcmp(msgFileName, "stdout") == 0 ) {
	msgFile = stdout ;
      }
      else if ( (msgFile = fopen(msgFileName, "a")) == NULL ) {
	fprintf(stderr, "\n fatal error in %s"
		"\n unable to open file %s\n", argv[0], ctemp) ;
	return(-1) ;
      }
    }
    else if (k==8)
      sscanf(ctemp, "%d %d %d %d %d %d", 
	     &msglvl, &seed, &nrhs, &Ik, &itermax, &iterout);
    else if (k==9)
      sscanf(ctemp, "%d %d %d", &symmetryflag, &sparsityflag, &pivotingflag);
    else if (k==10)
      sscanf(ctemp, "%lf %lf %lf", &tau, &droptol, &conv_tol);
    else if (k==11) {
      /*
      for (j=0; j<strlen(ctemp); j++) {
	printf("j=%2d:%s",j,ctemp+j);
	if (ctemp[j] == ' ' && ctemp[j+1] != ' ') {
	  sscanf(ctemp+j, "%d", method+imethod);
          printf("method[%d]=%d\n",imethod,method[imethod]);
	  if (method[imethod] < 0) break;
	  imethod++;
	}
      }
      */
      imethod = sscanf(ctemp,"%d %d %d %d %d %d %d %d %d %d",
		       method, method+1, method+2, method+3, method+4,
		       method+5, method+6, method+7, method+8, method+9);
      /*printf("imethod=%d\n",imethod);*/
      for (j=0; j<imethod; j++) {
	/*printf("method[%d]=%d\n",j,method[j]);*/
	if (method[j]<0) {
	  imethod=j;
          break;
	}
      }
      if (imethod == 0) {
	fprintf(msgFile,"No method assigned in input file\n");
	return(-1);
      }
    }
    k++;
  }
  if (k==12) break;
}

fclose(inFile);

/* reset nrhs to 1 */
if (nrhs > 1) {
  fprintf(msgFile,"*** Multiple right-hand-side vectors is not allowed yet.\n");
  fprintf(msgFile,"*** nrhs is reset to 1.\n");
  nrhs =1;
}

fprintf(msgFile, 
        "\n %s "
        "\n srcFileName   -- %s"
        "\n mtxFileName   -- %s"
        "\n etreeFileName -- %s"
        "\n rhsFileName   -- %s"
        "\n msglvl        -- %d" 
        "\n seed          -- %d" 
        "\n symmetryflag  -- %d" 
        "\n sparsityflag  -- %d" 
        "\n pivotingflag  -- %d" 
        "\n tau           -- %e" 
        "\n droptol       -- %e" 
        "\n conv_tol      -- %e"
        "\n method        -- ",
        argv[0], srcFileName, mtxFileName, etreeFileName, rhsFileName,
	msglvl, seed, symmetryflag, sparsityflag, pivotingflag, 
        tau, droptol, conv_tol) ;
 
for (k=0; k<imethod; k++) 
  fprintf(msgFile, "%d ", method[k]);
fprintf(msgFile, "\n ", method[k]);

fflush(msgFile) ;

/*
   --------------------------------------
   initialize the random number generator
   --------------------------------------
*/
Drand_setDefaultFields(&drand) ;
Drand_init(&drand) ;
Drand_setSeed(&drand, seed) ;
/*Drand_setUniform(&drand, 0.0, 1.0) ;*/
Drand_setNormal(&drand, 0.0, 1.0) ;
/*
   ----------------------------------------------
   read in or convert source to the InpMtx object
   ----------------------------------------------
*/
rc = 1;

if ( strcmp(srcFileName, "none") == 0 ) {
   fprintf(msgFile, "\n no file to read from") ;
   exit(-1) ;
}
mtxA = InpMtx_new() ;

MARKTIME(t1) ;
if (iformat == 0)  { /* InpMtx source format */
  rc = InpMtx_readFromFile(mtxA, srcFileName) ;
  strcpy(mtxFileName, srcFileName);
  if ( rc != 1 ) 
    fprintf(msgFile, "\n return value %d from InpMtx_readFromFile(%p,%s)",
	    rc, mtxA, srcFileName) ;
}
else if (iformat == 1) {  /* HBF source format */
  rc = InpMtx_readFromHBfile(mtxA, srcFileName) ;
  if ( rc != 1 ) 
    fprintf(msgFile, "\n return value %d from InpMtx_readFromHBfile(%p,%s)",
	    rc, mtxA, srcFileName) ;
}
else { /* AIJ2 source format */
  rc = InpMtx_readFromAIJ2file(mtxA, srcFileName) ;
  if ( rc != 1 ) 
    fprintf(msgFile, "\n return value %d from InpMtx_readFromAIJ2file(%p,%s)",
	    rc, mtxA, srcFileName) ;
}
MARKTIME(t2) ;
if (iformat>0 && strcmp(mtxFileName, "none") != 0 ) {
  rc = InpMtx_writeToFile(mtxA, mtxFileName) ;
  if ( rc != 1 )
    fprintf(msgFile, "\n return value %d from InpMtx_writeToFile(%p,%s)",
	    rc, mtxA, mtxFileName) ;
}

fprintf(msgFile, "\n CPU %8.3f : read in (+ convert to) mtxA from file %s",
	t2 - t1, mtxFileName) ;
if (rc != 1) {
  goto end_read;
}
type = mtxA->inputMode ;
neqns = 1 + IVmax(mtxA->nent, InpMtx_ivec1(mtxA), &loc) ;
if ( INPMTX_IS_BY_ROWS(mtxA) ) {
  fprintf(msgFile, "\n matrix coordinate type is rows") ;
} else if ( INPMTX_IS_BY_COLUMNS(mtxA) ) {
  fprintf(msgFile, "\n matrix coordinate type is columns") ;
} else if ( INPMTX_IS_BY_CHEVRONS(mtxA) ) {
  fprintf(msgFile, "\n matrix coordinate type is chevrons") ;
} else {
  fprintf(msgFile, "\n\n, error, bad coordinate type") ;
  rc=-1;
  goto end_read;
}
if ( INPMTX_IS_RAW_DATA(mtxA) ) {
  fprintf(msgFile, "\n matrix storage mode is raw data\n") ;
} else if ( INPMTX_IS_SORTED(mtxA) ) {
  fprintf(msgFile, "\n matrix storage mode is sorted\n") ;
} else if ( INPMTX_IS_BY_VECTORS(mtxA) ) {
  fprintf(msgFile, "\n matrix storage mode is by vectors\n") ;
} else {
  fprintf(msgFile, "\n\n, error, bad storage mode") ;
  rc=-1;
  goto end_read;
}

if ( msglvl > 1 ) {
  fprintf(msgFile, "\n\n after reading InpMtx object from file %s",
	  mtxFileName) ;
  if ( msglvl == 2 ) {
    InpMtx_writeStats(mtxA, msgFile) ;
  } else {
    InpMtx_writeForHumanEye(mtxA, msgFile) ;
  }
  fflush(msgFile) ;
}
/*
  Get the nonzeros in matrix A and print it
  */
nnzA  = InpMtx_nent( mtxA );
fprintf(msgFile, "\n\n Input matrix size  %d NNZ  %d",
	neqns, nnzA) ;

/*
   --------------------------------------------------------
   generate the linear system
   1. generate solution matrix and fill with random numbers
   2. generate rhs matrix and fill with zeros
   3. compute matrix-matrix multiply
   --------------------------------------------------------
*/
MARKTIME(t1) ;
mtxX = DenseMtx_new() ;
DenseMtx_init(mtxX, type, 0, -1, neqns, nrhs, 1, neqns) ;
mtxB = DenseMtx_new() ; 

if (strcmp(rhsFileName, "none")) {
  rc = DenseMtx_readFromFile(mtxB, rhsFileName) ;
  if ( rc != 1 )
    fprintf(msgFile, "\n return value %d from DenseMtx_readFromFile(%p,%s)",
	    rc, mtxB, rhsFileName) ;
  DenseMtx_zero(mtxX) ;
}
else {
  DenseMtx_init(mtxB, type, 1, -1, neqns, nrhs, 1, neqns) ;
  DenseMtx_fillRandomEntries(mtxX, &drand) ;
  DenseMtx_zero(mtxB) ;
  switch ( symmetryflag ) {
  case SPOOLES_SYMMETRIC : 
    InpMtx_sym_mmm(mtxA, mtxB, one, mtxX) ;
    break ;
  case SPOOLES_HERMITIAN :
    InpMtx_herm_mmm(mtxA, mtxB, one, mtxX) ;
    break ;
  case SPOOLES_NONSYMMETRIC :
    InpMtx_nonsym_mmm(mtxA, mtxB, one, mtxX) ;
    break ;
  default :
    break ;
  }
}
  
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : set up the solution and rhs ",
        t2 - t1) ;
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n\n original mtxX") ;
   DenseMtx_writeForHumanEye(mtxX, msgFile) ;
   fprintf(msgFile, "\n\n original mtxB") ;
   DenseMtx_writeForHumanEye(mtxB, msgFile) ;
   fflush(msgFile) ;
}
if (rc != 1) {
  InpMtx_free(mtxA);
  DenseMtx_free(mtxX);
  DenseMtx_free(mtxB);
  goto end_init;
}

/*
   ------------------------
   read in/create the ETree object
   ------------------------
*/

MARKTIME(t1) ;
if (etreeflag == 0) { /* read in ETree from file */
  if ( strcmp(etreeFileName, "none") == 0 ) 
    fprintf(msgFile, "\n no file to read from") ;
  frontETree = ETree_new() ;
  rc = ETree_readFromFile(frontETree, etreeFileName) ;
  if (rc!=1) 
    fprintf(msgFile, "\n return value %d from ETree_readFromFile(%p,%s)",
	    rc, frontETree, etreeFileName) ;
}
else {
  graph = Graph_new() ;
  rc = InpMtx_createGraph(mtxA, graph);
  if (rc!=1) {
    fprintf(msgFile, "\n return value %d from InpMtx_createGraph(%p,%p)",
	    rc, mtxA, graph) ;
    Graph_free(graph);
    goto end_tree;
  }
  if (etreeflag == 1) { /* Via BestOfNDandMS */
    maxdomainsize = 500; maxzeros      = 1000; maxsize       = 64    ;
    frontETree = orderViaBestOfNDandMS(graph, maxdomainsize, maxzeros,
				       maxsize, seed, msglvl, msgFile) ;
  }
  else if (etreeflag == 2) { /* Via MMD */
    frontETree = orderViaMMD(graph, seed, msglvl, msgFile) ;        
  }
  else if (etreeflag == 3) { /* Via MS */
    maxdomainsize = 500;
    frontETree = orderViaMS(graph, maxdomainsize, seed, msglvl, msgFile) ;
  }
  else if (etreeflag == 4) { /* Via ND */
    maxdomainsize = 500;
    frontETree = orderViaND(graph, maxdomainsize, seed, msglvl, msgFile) ;
  }
  Graph_free(graph);

  /*    optionally write out the ETree object    */
  if ( strcmp(etreeFileName, "none") != 0 ) {
    fprintf(msgFile, "\n\n writing out ETree to file %s", 
	    etreeFileName) ;
    ETree_writeToFile(frontETree, etreeFileName) ;
  }
}
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : read in/create frontETree from file %s",
	t2 - t1, etreeFileName) ;
if ( rc != 1 ) {
  ETree_free(frontETree);
  goto end_tree;
}

ETree_leftJustify(frontETree) ;
if ( msglvl > 1 ) {
  fprintf(msgFile, "\n\n after reading ETree object from file %s",
	  etreeFileName) ;
  if ( msglvl == 2 ) {
    ETree_writeStats(frontETree, msgFile) ;
  } else {
    ETree_writeForHumanEye(frontETree, msgFile) ;
  }
}
fflush(msgFile) ;
/*
   --------------------------------------------------
   get the permutations, permute the matrix and the 
   front tree, and compute the symbolic factorization
   --------------------------------------------------
*/
MARKTIME(t1) ;
oldToNewIV = ETree_oldToNewVtxPerm(frontETree) ;
newToOldIV = ETree_newToOldVtxPerm(frontETree) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : get permutations", t2 - t1) ;
MARKTIME(t1) ;
ETree_permuteVertices(frontETree, oldToNewIV) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : permute front tree", t2 - t1) ;
MARKTIME(t1) ;
InpMtx_permute(mtxA, IV_entries(oldToNewIV), IV_entries(oldToNewIV)) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : permute mtxA", t2 - t1) ;
if (  symmetryflag == SPOOLES_SYMMETRIC
   || symmetryflag == SPOOLES_HERMITIAN ) {
   MARKTIME(t1) ;
   InpMtx_mapToUpperTriangle(mtxA) ;
   MARKTIME(t2) ;
   fprintf(msgFile, "\n CPU %8.3f : map to upper triangle", t2 - t1) ;
}
if ( ! INPMTX_IS_BY_CHEVRONS(mtxA) ) {
   MARKTIME(t1) ;
   InpMtx_changeCoordType(mtxA, INPMTX_BY_CHEVRONS) ;
   MARKTIME(t2) ;
   fprintf(msgFile, "\n CPU %8.3f : change coordinate type", t2 - t1) ;
}
if ( INPMTX_IS_RAW_DATA(mtxA) ) {
   MARKTIME(t1) ;
   InpMtx_changeStorageMode(mtxA, INPMTX_SORTED) ;
   MARKTIME(t2) ;
   fprintf(msgFile, "\n CPU %8.3f : sort entries ", t2 - t1) ;
}
if ( INPMTX_IS_SORTED(mtxA) ) {
   MARKTIME(t1) ;
   InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS) ;
   MARKTIME(t2) ;
   fprintf(msgFile, "\n CPU %8.3f : convert to vectors ", t2 - t1) ;
}
MARKTIME(t1) ;
symbfacIVL = SymbFac_initFromInpMtx(frontETree, mtxA) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : symbolic factorization", t2 - t1) ;
MARKTIME(t1) ;
DenseMtx_permuteRows(mtxB, oldToNewIV) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n CPU %8.3f : permute rhs", t2 - t1) ;

/*
   ------------------------------
   initialize the FrontMtx object
   ------------------------------
*/
MARKTIME(t1) ;
frontmtx   = FrontMtx_new() ;
mtxmanager = SubMtxManager_new() ;
SubMtxManager_init(mtxmanager, NO_LOCK, 0) ;
FrontMtx_init(frontmtx, frontETree, symbfacIVL,
              type, symmetryflag, sparsityflag, pivotingflag,
              NO_LOCK, 0, NULL, mtxmanager, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %8.3f : initialize the front matrix",
        t2 - t1) ;
if ( msglvl > 1 ) {
   fprintf(msgFile,
           "\n nendD  = %d, nentL = %d, nentU = %d",
           frontmtx->nentD, frontmtx->nentL, frontmtx->nentU) ;
   SubMtxManager_writeForHumanEye(mtxmanager, msgFile) ;
}
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n front matrix initialized") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
/*
   -----------------
   factor the matrix
   -----------------
*/
nzf       = ETree_nFactorEntries(frontETree, symmetryflag) ;
factorops = ETree_nFactorOps(frontETree, type, symmetryflag) ;
fprintf(msgFile, 
        "\n %d factor entries, %.0f factor ops, %8.3f ratio",
        nzf, factorops, factorops/nzf) ;
IVzero(6, stats) ;
DVzero(9, cpus) ;
chvmanager = ChvManager_new() ;
ChvManager_init(chvmanager, NO_LOCK, 1) ;
MARKTIME(t1) ;
rootchv = FrontMtx_factorInpMtx(frontmtx, mtxA, tau, droptol, 
                                chvmanager, &error, cpus, 
                                stats, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %8.3f : factor matrix, %8.3f mflops",
        t2 - t1, 1.e-6*factorops/(t2-t1)) ;
if ( rootchv != NULL ) {
   fprintf(msgFile, "\n\n factorization did not complete") ;
   for ( chv = rootchv ; chv != NULL ; chv = chv->next ) {
      fprintf(stdout, "\n chv %d, nD = %d, nL = %d, nU = %d",
              chv->id, chv->nD, chv->nL, chv->nU) ;
   }
}
if ( error >= 0 ) {
   fprintf(msgFile, "\n\n error encountered at front %d\n", error) ;
   rc=error ;
   goto end_front;
}
fprintf(msgFile,
        "\n %8d pivots, %8d pivot tests, %8d delayed rows and columns",
        stats[0], stats[1], stats[2]) ;
if ( frontmtx->rowadjIVL != NULL ) {
   fprintf(msgFile,
           "\n %d entries in rowadjIVL", frontmtx->rowadjIVL->tsize) ;
}
if ( frontmtx->coladjIVL != NULL ) {
   fprintf(msgFile,
           ", %d entries in coladjIVL", frontmtx->coladjIVL->tsize) ;
}
if ( frontmtx->upperblockIVL != NULL ) {
   fprintf(msgFile,
           "\n %d fronts, %d entries in upperblockIVL", 
           frontmtx->nfront, frontmtx->upperblockIVL->tsize) ;
}
if ( frontmtx->lowerblockIVL != NULL ) {
   fprintf(msgFile,
           ", %d entries in lowerblockIVL", 
           frontmtx->lowerblockIVL->tsize) ;
}
fprintf(msgFile,
        "\n %d entries in D, %d entries in L, %d entries in U",
        stats[3], stats[4], stats[5]) ;
fprintf(msgFile, "\n %d locks", frontmtx->nlocks) ;
if (  FRONTMTX_IS_SYMMETRIC(frontmtx)
   || FRONTMTX_IS_HERMITIAN(frontmtx) ) {
   int   nneg, npos, nzero ;

   FrontMtx_inertia(frontmtx, &nneg, &nzero, &npos) ;
   fprintf(msgFile, 
           "\n %d negative, %d zero and %d positive eigenvalues",
           nneg, nzero, npos) ;
   fflush(msgFile) ;
}
cputotal = cpus[8] ;
if ( cputotal > 0.0 ) {
   fprintf(msgFile,
   "\n    initialize fronts       %8.3f %6.2f"
   "\n    load original entries   %8.3f %6.2f"
   "\n    update fronts           %8.3f %6.2f"
   "\n    assemble postponed data %8.3f %6.2f"
   "\n    factor fronts           %8.3f %6.2f"
   "\n    extract postponed data  %8.3f %6.2f"
   "\n    store factor entries    %8.3f %6.2f"
   "\n    miscellaneous           %8.3f %6.2f"
   "\n    total time              %8.3f",
   cpus[0], 100.*cpus[0]/cputotal,
   cpus[1], 100.*cpus[1]/cputotal,
   cpus[2], 100.*cpus[2]/cputotal,
   cpus[3], 100.*cpus[3]/cputotal,
   cpus[4], 100.*cpus[4]/cputotal,
   cpus[5], 100.*cpus[5]/cputotal,
   cpus[6], 100.*cpus[6]/cputotal,
   cpus[7], 100.*cpus[7]/cputotal, cputotal) ;
}
if ( msglvl > 1 ) {
  SubMtxManager_writeForHumanEye(mtxmanager, msgFile) ;
  ChvManager_writeForHumanEye(chvmanager, msgFile) ;
}
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n\n front factor matrix") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
}

/*
   ------------------------------
   post-process the factor matrix
   ------------------------------
*/
MARKTIME(t1) ;
FrontMtx_postProcess(frontmtx, msglvl, msgFile) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n\n CPU %8.3f : post-process the matrix", t2 - t1) ;
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n\n front factor matrix after post-processing") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
}
fprintf(msgFile, "\n\n after post-processing") ;
if ( msglvl > 1 ) SubMtxManager_writeForHumanEye(frontmtx->manager, msgFile) ;
/*
   ----------------
   solve the system
   ----------------
*/
neqns = mtxB->nrow ;
mtxZ  = DenseMtx_new() ;
DenseMtx_init(mtxZ, type, 0, 0, neqns, nrhs, 1, neqns) ;
zversion=INPMTX_IS_COMPLEX_ENTRIES(mtxA);

for (k=0; k<imethod; k++) {
  DenseMtx_zero(mtxZ) ;
  if ( msglvl > 2 ) {
    fprintf(msgFile, "\n\n rhs") ;
    DenseMtx_writeForHumanEye(mtxB, msgFile) ;
    fflush(stdout) ;
  }
  fprintf(msgFile, "\n\n itemax  %d", itermax) ;
  DVzero(6, cpus) ;
  MARKTIME(t1) ;
  switch ( method[k] ) {
  case BiCGStabR :
    if (zversion)
      rc=zbicgstabr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		    itermax, conv_tol, msglvl, msgFile);
    else
      rc=bicgstabr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		   itermax, conv_tol, msglvl, msgFile);

    break;
  case BiCGStabL :
    if (zversion)
    rc=zbicgstabl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		  itermax, conv_tol, msglvl, msgFile);
    else
      rc=bicgstabl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		   itermax, conv_tol, msglvl, msgFile);
    break;
  case TFQMRR :
    if (zversion)
      rc=ztfqmrr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		 itermax, conv_tol, msglvl, msgFile);
    else
      rc=tfqmrr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		itermax, conv_tol, msglvl, msgFile);
    break;
  case TFQMRL :
    if (zversion)
      rc=ztfqmrl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		 itermax, conv_tol, msglvl, msgFile);
    else
      rc=tfqmrl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
		itermax, conv_tol, msglvl, msgFile);
    break;
  case PCGR :
    if (zversion)
      rc=zpcgr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
	       itermax, conv_tol, msglvl, msgFile);
    else
      rc=pcgr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
	      itermax, conv_tol, msglvl, msgFile);
    break;
  case PCGL :
    if (zversion)
      rc=zpcgl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
	       itermax, conv_tol, msglvl, msgFile);
    else
      rc=pcgl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ, mtxB,
	      itermax, conv_tol, msglvl, msgFile);
    break;
  case MLBiCGStabR :
    mtxQ = DenseMtx_new() ;
    DenseMtx_init(mtxQ, type, 0, -1, neqns, Ik, 1, neqns) ;
    Drand_setUniform(&drand, 0.0, 1.0) ;
    DenseMtx_fillRandomEntries(mtxQ, &drand) ;
    if (zversion)
      rc=zmlbicgstabr(neqns, type, symmetryflag, mtxA, frontmtx, mtxQ, mtxZ, 
		      mtxB, itermax, conv_tol, msglvl, msgFile);
    else
      rc=mlbicgstabr(neqns, type, symmetryflag, mtxA, frontmtx, mtxQ, mtxZ, 
		     mtxB, itermax, conv_tol, msglvl, msgFile);
    DenseMtx_free(mtxQ) ;
    break;
  case MLBiCGStabL :
    mtxQ = DenseMtx_new() ;
    DenseMtx_init(mtxQ, type, 0, -1, neqns, Ik, 1, neqns) ;
    Drand_setUniform(&drand, 0.0, 1.0) ;
    DenseMtx_fillRandomEntries(mtxQ, &drand) ;
    if (zversion)
      rc=zmlbicgstabl(neqns, type, symmetryflag, mtxA, frontmtx, mtxQ, mtxZ, 
		      mtxB, itermax, conv_tol, msglvl, msgFile);
    else
      rc=mlbicgstabl(neqns, type, symmetryflag, mtxA, frontmtx, mtxQ, mtxZ, 
		     mtxB, itermax, conv_tol, msglvl, msgFile);
    DenseMtx_free(mtxQ) ;
    break;
  case BGMRESR:    
    if (zversion)
      fprintf(msgFile, "\n\n *** BGMRESR complex version is not available "
	      "at this moment.   ") ;
    else
      rc=bgmresr(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ,
                 mtxB, iterout, itermax, &nouter, &ninner, conv_tol,
                 msglvl, msgFile);
    break;
  case BGMRESL:    
    if (zversion)
      fprintf(msgFile, "\n\n *** BGMRESR complex version is not available "
	      "at this moment.   ") ;
    else
      rc=bgmresl(neqns, type, symmetryflag, mtxA, frontmtx, mtxZ,
                 mtxB, iterout, itermax, &nouter, &ninner, conv_tol,
                 msglvl, msgFile);
    break;
  default:
    fprintf(msgFile, "\n\n *** Invalid method number   ") ;
  }
  
  MARKTIME(t2) ;
  fprintf(msgFile, "\n\n CPU %8.3f : solve the system", t2 - t1) ;
  if ( msglvl > 2 ) {
    fprintf(msgFile, "\n\n computed solution") ;
    DenseMtx_writeForHumanEye(mtxZ, msgFile) ;
    fflush(stdout) ;
  }
  
/*
  -------------------------------------------------------------
  permute the computed solution back into the original ordering
  -------------------------------------------------------------
*/
  MARKTIME(t1) ;
  DenseMtx_permuteRows(mtxZ, newToOldIV) ;
  MARKTIME(t2) ;
  fprintf(msgFile, "\n CPU %8.3f : permute solution", t2 - t1) ;
  if ( msglvl > 2 ) {
    fprintf(msgFile, "\n\n permuted solution") ;
    DenseMtx_writeForHumanEye(mtxZ, msgFile) ;
    fflush(stdout) ;
  }
/*
  -------------
  save solution
  -------------
*/
  if (  strcmp(slnFileName, "none") != 0 ) {
    DenseMtx_writeToFile(mtxZ, slnFileName) ;
  }
/*
  -----------------
  compute the error
  -----------------
*/
  if (!strcmp(rhsFileName, "none")) {    
    DenseMtx_sub(mtxZ, mtxX) ;
    if (method[k] <8) {
      mtxQ = DenseMtx_new() ;
      DenseMtx_init(mtxQ, type, 0, -1, neqns, 1, 1, neqns) ;
      rc=DenseMtx_initAsSubmatrix (mtxQ, mtxZ, 0, neqns-1, 0, 0);
      fprintf(msgFile, "\n\n maxabs error = %12.4e", DenseMtx_maxabs(mtxQ)) ;
      DenseMtx_free(mtxQ) ;
    }
    else
      fprintf(msgFile, "\n\n maxabs error = %12.4e", DenseMtx_maxabs(mtxZ)) ;

    if ( msglvl > 1 ) {
      fprintf(msgFile, "\n\n error") ;
      DenseMtx_writeForHumanEye(mtxZ, msgFile) ;
      fflush(stdout) ;
    }
    if ( msglvl > 1 ) 
      SubMtxManager_writeForHumanEye(frontmtx->manager, msgFile) ;
  }
  fprintf(msgFile, "\n---------  End of Method %d -------\n",method[k]) ;
      
}
/*
   ------------------------
   free the working storage
   ------------------------
*/
DenseMtx_free(mtxZ) ;

end_front:
ChvManager_free(chvmanager) ;
SubMtxManager_free(mtxmanager) ;
FrontMtx_free(frontmtx) ;
IVL_free(symbfacIVL) ;
IV_free(oldToNewIV) ;
IV_free(newToOldIV) ;

end_tree:
ETree_free(frontETree) ;

end_init:
DenseMtx_free(mtxB) ;
DenseMtx_free(mtxX) ;

end_read:
InpMtx_free(mtxA) ;

fprintf(msgFile, "\n") ;
fclose(msgFile) ;

return(rc) ; }
Exemple #5
0
/*
   --------------------------------------------------------------
   purpose -- to permute (if necessary) the original matrix,
      and to initialize, factor and postprocess the factor matrix

   return value ---
      1 -- normal return, factorization complete
      0 -- factorization did not complete, see error flag
     -1 -- bridge is NULL
     -2 -- mtxA is NULL
     -3 -- perror is NULL 

   created -- 98sep18, cca
   --------------------------------------------------------------
*/
int
BridgeMT_factor (
   BridgeMT   *bridge,
   InpMtx     *mtxA,
   int        permuteflag,
   int        *perror
) {
Chv             *rootchv ;
ChvManager      *chvmanager ;
double          cputotal, nfops, t0, t1, t2 ;
double          cpus[11] ;
int             msglvl, nzf ;
int             stats[16] ;
FILE            *msgFile ;
FrontMtx        *frontmtx ;
SubMtxManager   *mtxmanager ;

/*--------------------------------------------------------------------*/

MARKTIME(t0) ;
/*
   ---------------
   check the input
   ---------------
*/
if ( bridge == NULL ) {
   fprintf(stderr, "\n error in BridgeMT_factor()"
           "\n bridge is NULL\n") ;
   return(-1) ;
}
if ( mtxA == NULL ) {
   fprintf(stderr, "\n error in BridgeMT_factor()"
           "\n mtxA is NULL\n") ;
   return(-2) ;
}
if ( perror == NULL ) {
   fprintf(stderr, "\n error in BridgeMT_factor()"
           "\n perror is NULL\n") ;
   return(-3) ;
}
msglvl  = bridge->msglvl  ;
msgFile = bridge->msgFile ;

/*--------------------------------------------------------------------*/

MARKTIME(t1) ;
if ( permuteflag == 1 ) {
   int   *oldToNew = IV_entries(bridge->oldToNewIV) ;
/*
   ------------------------------------------------
   permute the input matrix and convert to chevrons
   ------------------------------------------------
*/
   InpMtx_permute(mtxA, oldToNew, oldToNew) ;
   if (  bridge->symmetryflag == SPOOLES_SYMMETRIC
      || bridge->symmetryflag == SPOOLES_HERMITIAN ) {
      InpMtx_mapToUpperTriangle(mtxA) ;
   }
}
if ( ! INPMTX_IS_BY_CHEVRONS(mtxA) ) {
   InpMtx_changeCoordType(mtxA, INPMTX_BY_CHEVRONS) ;
}
if ( ! INPMTX_IS_BY_VECTORS(mtxA) ) {
   InpMtx_changeStorageMode(mtxA, INPMTX_BY_VECTORS) ;
}
MARKTIME(t2) ;
bridge->cpus[6] += t2 - t1 ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n CPU %8.3f : permute and format A", t2 - t1) ;
   fflush(msgFile) ;
}
/*
   ---------------------------
   initialize the front matrix
   ---------------------------
*/
MARKTIME(t1) ;
if ( (mtxmanager = bridge->mtxmanager) == NULL ) {
   mtxmanager = bridge->mtxmanager = SubMtxManager_new() ;
   SubMtxManager_init(mtxmanager, LOCK_IN_PROCESS, 0) ;
}
if ( (frontmtx = bridge->frontmtx) == NULL ) {
   frontmtx = bridge->frontmtx = FrontMtx_new() ;
} else {
   FrontMtx_clearData(frontmtx) ;
}
FrontMtx_init(frontmtx, bridge->frontETree, bridge->symbfacIVL,
              bridge->type, bridge->symmetryflag, bridge->sparsityflag,
              bridge->pivotingflag, LOCK_IN_PROCESS, 0, NULL, 
              mtxmanager, msglvl, msgFile) ;
frontmtx->patchinfo = bridge->patchinfo ;
MARKTIME(t2) ;
bridge->cpus[7] += t2 - t1 ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n CPU %8.3f : initialize front matrix", t2 - t1) ;
   fflush(msgFile) ;
}
/*
   -----------------
   factor the matrix
   -----------------
*/
nzf   = ETree_nFactorEntries(bridge->frontETree, bridge->symmetryflag) ;
nfops = ETree_nFactorOps(bridge->frontETree, 
                         bridge->type, bridge->symmetryflag) ;
if ( msglvl > 1 ) {
   fprintf(msgFile, 
           "\n %d factor entries, %.0f factor ops, %8.3f ratio",
           nzf, nfops, nfops/nzf) ;
   fflush(msgFile) ;
}
IVzero(16, stats) ;
DVzero(11, cpus) ;
chvmanager = ChvManager_new() ;
ChvManager_init(chvmanager, LOCK_IN_PROCESS, 1) ;
MARKTIME(t1) ;
rootchv = FrontMtx_MT_factorInpMtx(frontmtx, mtxA, bridge->tau, 
             bridge->droptol, chvmanager, bridge->ownersIV,
             bridge->lookahead, perror, cpus, stats, msglvl, msgFile) ;
MARKTIME(t2) ;
IVcopy(6, bridge->stats, stats) ;
bridge->cpus[8] += t2 - t1 ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n CPU %8.3f : factor matrix, %8.3f mflops",
           t2 - t1, 1.e-6*nfops/(t2-t1)) ;
   fprintf(msgFile,
           "\n %8d pivots, %8d pivot tests, %8d delayed vertices"
           "\n %d entries in D, %d entries in L, %d entries in U",
           stats[0], stats[1], stats[2], stats[3], stats[4], stats[5]) ;
   cputotal = cpus[8] ;
   if ( cputotal > 0.0 ) {
      fprintf(msgFile,
      "\n    initialize fronts       %8.3f %6.2f"
      "\n    load original entries   %8.3f %6.2f"
      "\n    update fronts           %8.3f %6.2f"
      "\n    assemble postponed data %8.3f %6.2f"
      "\n    factor fronts           %8.3f %6.2f"
      "\n    extract postponed data  %8.3f %6.2f"
      "\n    store factor entries    %8.3f %6.2f"
      "\n    miscellaneous           %8.3f %6.2f"
      "\n    total time              %8.3f",
      cpus[0], 100.*cpus[0]/cputotal,
      cpus[1], 100.*cpus[1]/cputotal,
      cpus[2], 100.*cpus[2]/cputotal,
      cpus[3], 100.*cpus[3]/cputotal,
      cpus[4], 100.*cpus[4]/cputotal,
      cpus[5], 100.*cpus[5]/cputotal,
      cpus[6], 100.*cpus[6]/cputotal,
      cpus[7], 100.*cpus[7]/cputotal, cputotal) ;
   }
}
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n\n submatrix mananger after factorization") ;
   SubMtxManager_writeForHumanEye(mtxmanager, msgFile) ;
   fprintf(msgFile, "\n\n chevron mananger after factorization") ;
   ChvManager_writeForHumanEye(chvmanager, msgFile) ;
   fflush(msgFile) ;
}
if ( msglvl > 3 ) {
   fprintf(msgFile, "\n\n front factor matrix") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}
ChvManager_free(chvmanager) ;
if ( *perror >= 0 ) {
   return(0) ;
}
/*
   -----------------------------
   post-process the front matrix
   -----------------------------
*/
MARKTIME(t1) ;
FrontMtx_postProcess(frontmtx, msglvl, msgFile) ;
MARKTIME(t2) ;
bridge->cpus[9] += t2 - t1 ;
if ( msglvl > 1 ) {
   fprintf(msgFile, 
           "\n\n CPU %8.3f : post-process the matrix", t2 - t1) ;
   fflush(msgFile) ;
}
if ( msglvl > 2 ) {
   fprintf(msgFile, "\n\n submatrix mananger after post-processing") ;
   SubMtxManager_writeForHumanEye(frontmtx->manager, msgFile) ;
   fflush(msgFile) ;
}
if ( msglvl > 3 ) {
   fprintf(msgFile, "\n\n front factor matrix after post-processing") ;
   FrontMtx_writeForHumanEye(frontmtx, msgFile) ;
   fflush(msgFile) ;
}

/*--------------------------------------------------------------------*/

MARKTIME(t2) ;
bridge->cpus[10] += t2 - t0 ;
if ( msglvl > 1 ) {
   fprintf(msgFile, "\n\n CPU %8.3f : total factor time", t2 - t0) ;
   fflush(msgFile) ;
}

return(1) ; }