/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-------------------------------------
test the Chv_r1upd() method.
the program's output is a matlab file
to check correctness of the code.
created -- 98apr30, cca
-------------------------------------
*/
{
Chv *chv ;
double imag, real, t1, t2 ;
double *entries ;
Drand *drand ;
FILE *msgFile ;
int ii, irow, jcol, msglvl, ncol, nD, nent, nL, nrow, nU,
rc, seed, symflag, tag, type ;
int *colind, *rowind ;
if ( argc != 8 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile nD nU type symflag seed "
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n nD -- # of rows and columns in the (1,1) block"
"\n nU -- # of columns in the (1,2) block"
"\n type -- entries type"
"\n 1 --> real"
"\n 2 --> complex"
"\n symflag -- symmetry flag"
"\n 0 --> hermitian"
"\n 1 --> symmetric"
"\n 2 --> nonsymmetric "
"\n seed -- random number seed"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
exit(-1) ;
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
nD = atoi(argv[3]) ;
nU = atoi(argv[4]) ;
type = atoi(argv[5]) ;
symflag = atoi(argv[6]) ;
seed = atoi(argv[7]) ;
fprintf(msgFile, "\n %% testChv:"
"\n %% msglvl = %d"
"\n %% msgFile = %s"
"\n %% nD = %d"
"\n %% nU = %d"
"\n %% type = %d"
"\n %% symflag = %d"
"\n %% seed = %d",
msglvl, argv[2], nD, nU, type, symflag, seed) ;
nL = nU ;
/*
-----------------------------
check for errors in the input
-----------------------------
*/
if ( nD <= 0 || nL < 0 || nU < 0
|| symflag < 0 || symflag > 3 ) {
fprintf(stderr, "\n invalid input"
"\n nD = %d, nL = %d, nU = %d, symflag = %d\n",
nD, nL, nU, symflag) ;
exit(-1) ;
}
if ( symflag <= 2 && nL != nU ) {
fprintf(stderr, "\n invalid input"
"\n symflag = %d, nL = %d, nU = %d", symflag, nL, nU) ;
exit(-1) ;
}
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new() ;
Drand_init(drand) ;
Drand_setSeed(drand, seed) ;
Drand_setNormal(drand, 0.0, 1.0) ;
/*
----------------------------
initialize the Chv object
----------------------------
*/
MARKTIME(t1) ;
chv = Chv_new() ;
Chv_init(chv, 0, nD, nL, nU, type, symflag) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize chv object",
t2 - t1) ;
fflush(msgFile) ;
Chv_columnIndices(chv, &ncol, &colind) ;
IVramp(ncol, colind, 0, 1) ;
if ( CHV_IS_NONSYMMETRIC(chv) ) {
Chv_rowIndices(chv, &nrow, &rowind) ;
IVramp(nrow, rowind, 0, 1) ;
}
/*
------------------------------------
load the entries with random entries
------------------------------------
*/
nent = Chv_nent(chv) ;
entries = Chv_entries(chv) ;
if ( CHV_IS_REAL(chv) ) {
Drand_fillDvector(drand, nent, entries) ;
} else if ( CHV_IS_COMPLEX(chv) ) {
Drand_fillDvector(drand, 2*nent, entries) ;
}
if ( CHV_IS_HERMITIAN(chv) ) {
for ( irow = 0 ; irow < nD ; irow++ ) {
Chv_complexEntry(chv, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chv, irow, irow, real, 0.0) ;
}
}
fprintf(msgFile, "\n %% matrix entries") ;
Chv_writeForMatlab(chv, "a", msgFile) ;
/*
---------------------------------------
write out matlab code for rank-1 update
---------------------------------------
*/
fprintf(msgFile,
"\n nD = %d ;"
"\n nL = %d ;"
"\n nU = %d ;"
"\n nrow = nD + nL ;"
"\n ncol = nD + nU ;"
"\n b = a ; "
"\n d = a(1,1) ;"
"\n l = a(2:nrow,1) / d ; "
"\n u = a(1,2:ncol) ; "
"\n b(2:nrow,2:ncol) = a(2:nrow,2:ncol) - l * u ; "
"\n u = u / d ; "
"\n b(1,1) = d ; "
"\n b(1,2:ncol) = u ; "
"\n b(2:nrow,1) = l ; ",
nD, nL, nU) ;
if ( nL > 0 && nU > 0 ) {
fprintf(msgFile, "\n b(nD+1:nrow,nD+1:ncol) = 0.0 ;") ;
}
/*
-------------------------
perform the rank-1 update
-------------------------
*/
rc = Chv_r1upd(chv) ;
/*
fprintf(msgFile, "\n raw entries vector") ;
DVfprintf(msgFile, 2*nent, entries) ;
*/
fprintf(msgFile, "\n %% matrix entries after update") ;
Chv_writeForMatlab(chv, "c", msgFile) ;
fprintf(msgFile, "\n maxerr = max(max(abs(c-b)))") ;
/*
------------------------
free the working storage
------------------------
*/
Chv_free(chv) ;
Drand_free(drand) ;
fprintf(msgFile, "\n") ;
return(1) ; }
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
------------------------------------
test the Chv_assembleChv() method.
created -- 98apr18, cca
------------------------------------
*/
{
Chv *chvI, *chvJ ;
double imag, real, t1, t2 ;
double *entriesI, *entriesJ ;
Drand *drand ;
FILE *msgFile ;
int ierr, ii, irow, jcol,
lastcol, msglvl, ncolI, ncolJ, nDI, nDJ, nentI, nentJ,
nrowI, nrowJ, nUI, nUJ, seed, symflag, type ;
int *colindI, *colindJ, *rowindI, *rowindJ, *temp ;
if ( argc != 10 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile nDJ nUJ nDI nUI type symflag seed "
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n nDJ -- # of rows and columns in the (1,1) block"
"\n nUJ -- # of columns in the (1,2) block"
"\n nDI -- # of rows and columns in the (1,1) block"
"\n nUI -- # of columns in the (1,2) block"
"\n type -- entries type"
"\n 1 --> real"
"\n 2 --> complex"
"\n symflag -- symmetry flag"
"\n 0 --> symmetric"
"\n 1 --> hermitian"
"\n 2 --> nonsymmetric"
"\n seed -- random number seed"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
exit(-1) ;
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
nDJ = atoi(argv[3]) ;
nUJ = atoi(argv[4]) ;
nDI = atoi(argv[5]) ;
nUI = atoi(argv[6]) ;
type = atoi(argv[7]) ;
symflag = atoi(argv[8]) ;
seed = atoi(argv[9]) ;
if ( nDJ <= 0 || nUJ < 0
|| nDI <= 0 || nUI < 0
|| nDI >= nDJ || (nDI + nUI) >= (nDJ + nUJ)
|| nUI >= (nDJ + nUJ - nDI)
|| ( symflag != SPOOLES_SYMMETRIC
&& symflag != SPOOLES_HERMITIAN
&& symflag != SPOOLES_NONSYMMETRIC) ) {
fprintf(stderr, "\n invalid input"
"\n nDJ = %d, nUJ = %d, nDI = %d, nUI = %d, symflag = %d\n",
nDJ, nUJ, nDI, nUI, symflag) ;
exit(-1) ;
}
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new() ;
Drand_init(drand) ;
Drand_setSeed(drand, seed) ;
Drand_setUniform(drand, -1.0, 1.0) ;
/*
----------------------------
initialize the ChvJ object
----------------------------
*/
MARKTIME(t1) ;
chvJ = Chv_new() ;
Chv_init(chvJ, 0, nDJ, nUJ, nUJ, type, symflag) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize chv object",
t2 - t1) ;
fflush(msgFile) ;
Chv_columnIndices(chvJ, &ncolJ, &colindJ) ;
temp = IVinit(2*(nDJ+nUJ), -1) ;
IVramp(2*(nDJ+nUJ), temp, 0, 1) ;
IVshuffle(2*(nDJ+nUJ), temp, ++seed) ;
IVcopy(ncolJ, colindJ, temp) ;
IVfree(temp) ;
IVqsortUp(ncolJ, colindJ) ;
if ( CHV_IS_NONSYMMETRIC(chvJ) ) {
Chv_rowIndices(chvJ, &nrowJ, &rowindJ) ;
IVcopy(nrowJ, rowindJ, colindJ) ;
}
if ( msglvl > 2 ) {
fprintf(msgFile, "\n %% column indices") ;
IVfprintf(msgFile, ncolJ, colindJ) ;
}
lastcol = colindJ[ncolJ-1] ;
nentJ = Chv_nent(chvJ) ;
entriesJ = Chv_entries(chvJ) ;
if ( CHV_IS_REAL(chvJ) ) {
Drand_fillDvector(drand, nentJ, entriesJ) ;
} else if ( CHV_IS_COMPLEX(chvJ) ) {
Drand_fillDvector(drand, 2*nentJ, entriesJ) ;
}
if ( CHV_IS_HERMITIAN(chvJ) ) {
/*
---------------------------------------------------------
hermitian example, set imaginary part of diagonal to zero
---------------------------------------------------------
*/
for ( irow = 0 ; irow < nDJ ; irow++ ) {
Chv_complexEntry(chvJ, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chvJ, irow, irow, real, 0.0) ;
}
}
/*
---------------------------
initialize the ChvI object
---------------------------
*/
chvI = Chv_new() ;
Chv_init(chvI, 0, nDI, nUI, nUI, type, symflag) ;
Chv_columnIndices(chvI, &ncolI, &colindI) ;
temp = IVinit(ncolJ, -1) ;
IVramp(ncolJ, temp, 0, 1) ;
while ( 1 ) {
IVshuffle(ncolJ, temp, ++seed) ;
IVqsortUp(ncolI, temp) ;
if ( temp[0] < nDJ ) {
break ;
}
}
for ( ii = 0 ; ii < ncolI ; ii++ ) {
colindI[ii] = colindJ[temp[ii]] ;
}
IVfree(temp) ;
if ( CHV_IS_NONSYMMETRIC(chvI) ) {
Chv_rowIndices(chvI, &nrowI, &rowindI) ;
IVcopy(nrowI, rowindI, colindI) ;
}
nentI = Chv_nent(chvI) ;
entriesI = Chv_entries(chvI) ;
if ( CHV_IS_REAL(chvI) ) {
Drand_fillDvector(drand, nentI, entriesI) ;
} else if ( CHV_IS_COMPLEX(chvI) ) {
Drand_fillDvector(drand, 2*nentI, entriesI) ;
}
if ( CHV_IS_HERMITIAN(chvI) ) {
/*
---------------------------------------------------------
hermitian example, set imaginary part of diagonal to zero
---------------------------------------------------------
*/
for ( irow = 0 ; irow < nDI ; irow++ ) {
Chv_complexEntry(chvI, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chvI, irow, irow, real, 0.0) ;
}
}
/*
--------------------------------------------------
write out the two chevron objects to a matlab file
--------------------------------------------------
*/
if ( msglvl > 1 ) {
fprintf(msgFile, "\n a = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
Chv_writeForMatlab(chvJ, "a", msgFile) ;
fprintf(msgFile, "\n b = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
Chv_writeForMatlab(chvI, "b", msgFile) ;
}
/*
---------------------------------------------
assemble the chvI object into the chvJ object
---------------------------------------------
*/
Chv_assembleChv(chvJ, chvI) ;
if ( msglvl > 1 ) {
fprintf(msgFile, "\n %% after assembly") ;
fprintf(msgFile, "\n c = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
Chv_writeForMatlab(chvJ, "c", msgFile) ;
}
/*
-----------------
compute the error
-----------------
*/
fprintf(msgFile, "\n max(max(abs(c - (b + a))))") ;
/*
------------------------
free the working storage
------------------------
*/
Chv_free(chvJ) ;
Chv_free(chvI) ;
Drand_free(drand) ;
fprintf(msgFile, "\n") ;
return(1) ; }
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
-------------------------------------
test the Chv_update{H,S,N}() methods.
T := T - U^T * D * U
T := T - U^H * D * U
T := T - L * D * U
created -- 98apr23, cca
-------------------------------------
*/
{
Chv *chvT ;
SubMtx *mtxD, *mtxL, *mtxU ;
double imag, ops, real, t1, t2 ;
Drand *drand ;
DV *tempDV ;
FILE *msgFile ;
int irow, msglvl, ncolT, nDT, ncolU, nentT, nentU, nrowD,
nrowL, nrowT, offset, seed, size, sparsityflag, symflag, type ;
int *colindT, *colindU, *ivec, *rowindL, *rowindT ;
if ( argc != 13 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile type symflag sparsityflag"
"\n ncolT ncolU nrowD nentU offset seed"
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n type -- entries type"
"\n 1 -- real"
"\n 2 -- complex"
"\n symflag -- type of matrix U"
"\n 0 -- symmetric"
"\n 1 -- hermitian"
"\n 2 -- nonsymmetric"
"\n sparsityflag -- dense or sparse"
"\n 0 -- dense"
"\n 1 -- sparse"
"\n ncolT -- # of rows and columns in matrix T"
"\n nDT -- # of internal rows and columns in matrix T"
"\n ncolU -- # of rows and columns in matrix U"
"\n nrowD -- # of rows and columns in matrix D"
"\n nentU -- # of entries in matrix U"
"\n offset -- distance between D_I and T"
"\n seed -- random number seed"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
spoolesFatal();
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
type = atoi(argv[3]) ;
symflag = atoi(argv[4]) ;
sparsityflag = atoi(argv[5]) ;
ncolT = atoi(argv[6]) ;
nDT = atoi(argv[7]) ;
ncolU = atoi(argv[8]) ;
nrowD = atoi(argv[9]) ;
nentU = atoi(argv[10]) ;
offset = atoi(argv[11]) ;
seed = atoi(argv[12]) ;
fprintf(msgFile, "\n %% %s:"
"\n %% msglvl = %d"
"\n %% msgFile = %s"
"\n %% type = %d"
"\n %% symflag = %d"
"\n %% sparsityflag = %d"
"\n %% ncolT = %d"
"\n %% nDT = %d"
"\n %% ncolU = %d"
"\n %% nrowD = %d"
"\n %% nentU = %d"
"\n %% offset = %d"
"\n %% seed = %d",
argv[0], msglvl, argv[2], type, symflag, sparsityflag,
ncolT, nDT, ncolU, nrowD, nentU, offset, seed) ;
/*
-----------------------------
check for errors in the input
-----------------------------
*/
if ( (type != SPOOLES_REAL
&& type != SPOOLES_COMPLEX)
|| (symflag != SPOOLES_SYMMETRIC
&& symflag != SPOOLES_HERMITIAN
&& symflag != SPOOLES_NONSYMMETRIC)
|| (sparsityflag < 0 || sparsityflag > 1)
|| ncolT <= 0 || ncolU > (ncolT + offset) || nrowD <= 0 ) {
fprintf(stderr, "\n invalid input\n") ;
spoolesFatal();
}
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new() ;
Drand_init(drand) ;
Drand_setSeed(drand, ++seed) ;
Drand_setNormal(drand, 0.0, 1.0) ;
/*
-----------------------
get a vector of indices
-----------------------
*/
size = nrowD + offset + ncolT ;
ivec = IVinit(size, -1) ;
IVramp(size, ivec, 0, 1) ;
/*
----------------------------
initialize the T Chv object
----------------------------
*/
fprintf(msgFile, "\n\n %% symflag = %d", symflag) ;
MARKTIME(t1) ;
chvT = Chv_new() ;
Chv_init(chvT, 0, nDT, ncolT - nDT, ncolT - nDT, type, symflag) ;
nentT = Chv_nent(chvT) ;
if ( CHV_IS_REAL(chvT) ) {
Drand_fillDvector(drand, nentT, Chv_entries(chvT)) ;
} else if ( CHV_IS_COMPLEX(chvT) ) {
Drand_fillDvector(drand, 2*nentT, Chv_entries(chvT)) ;
}
Chv_columnIndices(chvT, &ncolT, &colindT) ;
IVcopy(ncolT, colindT, ivec + nrowD + offset) ;
if ( CHV_IS_NONSYMMETRIC(chvT) ) {
Chv_rowIndices(chvT, &nrowT, &rowindT) ;
IVcopy(nrowT, rowindT, colindT) ;
}
IVfree(ivec) ;
if ( CHV_IS_HERMITIAN(chvT) ) {
fprintf(msgFile, "\n\n %% hermitian\n") ;
/*
---------------------------------------------------------
hermitian example, set imaginary part of diagonal to zero
---------------------------------------------------------
*/
for ( irow = 0 ; irow < nDT ; irow++ ) {
Chv_complexEntry(chvT, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chvT, irow, irow, real, 0.0) ;
}
}
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize chvT Chv object",
t2 - t1) ;
fprintf(msgFile, "\n T = zeros(%d,%d); ", size, size) ;
Chv_writeForMatlab(chvT, "T", msgFile) ;
/*
---------------------------
initialize the D Mtx object
---------------------------
*/
MARKTIME(t1) ;
mtxD = SubMtx_new() ;
if ( CHV_IS_REAL(chvT) ) {
if ( CHV_IS_SYMMETRIC(chvT) ) {
SubMtx_initRandom(mtxD, SPOOLES_REAL, SUBMTX_BLOCK_DIAGONAL_SYM,
0, 0, nrowD, nrowD, nrowD*nrowD, ++seed) ;
} else {
SubMtx_initRandom(mtxD, SPOOLES_REAL, SUBMTX_DIAGONAL,
0, 0, nrowD, nrowD, nrowD*nrowD, ++seed) ;
}
} else if ( CHV_IS_COMPLEX(chvT) ) {
if ( CHV_IS_HERMITIAN(chvT) ) {
SubMtx_initRandom(mtxD,SPOOLES_COMPLEX,SUBMTX_BLOCK_DIAGONAL_HERM,
0, 0, nrowD, nrowD, nrowD*nrowD, ++seed) ;
} else if ( CHV_IS_SYMMETRIC(chvT) ) {
SubMtx_initRandom(mtxD,SPOOLES_COMPLEX, SUBMTX_BLOCK_DIAGONAL_SYM,
0, 0, nrowD, nrowD, nrowD*nrowD, ++seed) ;
} else {
SubMtx_initRandom(mtxD, SPOOLES_COMPLEX, SUBMTX_DIAGONAL,
0, 0, nrowD, nrowD, nrowD*nrowD, ++seed) ;
}
}
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize D SubMtx object",
t2 - t1) ;
fprintf(msgFile, "\n D = zeros(%d,%d) ;", nrowD, nrowD) ;
SubMtx_writeForMatlab(mtxD, "D", msgFile) ;
/*
----------------------------
initialize the U SubMtx object
----------------------------
*/
MARKTIME(t1) ;
mtxU = SubMtx_new() ;
if ( CHV_IS_REAL(chvT) ) {
if ( sparsityflag == 0 ) {
SubMtx_initRandom(mtxU, SPOOLES_REAL, SUBMTX_DENSE_COLUMNS,
0, 0, nrowD, ncolU, nentU, ++seed) ;
} else {
SubMtx_initRandom(mtxU, SPOOLES_REAL, SUBMTX_SPARSE_COLUMNS,
0, 0, nrowD, ncolU, nentU, ++seed) ;
}
} else if ( CHV_IS_COMPLEX(chvT) ) {
if ( sparsityflag == 0 ) {
SubMtx_initRandom(mtxU, SPOOLES_COMPLEX, SUBMTX_DENSE_COLUMNS,
0, 0, nrowD, ncolU, nentU, ++seed) ;
} else {
SubMtx_initRandom(mtxU, SPOOLES_COMPLEX, SUBMTX_SPARSE_COLUMNS,
0, 0, nrowD, ncolU, nentU, ++seed) ;
}
}
ivec = IVinit(offset + ncolT, -1) ;
IVramp(offset + ncolT, ivec, nrowD, 1) ;
IVshuffle(offset + ncolT, ivec, ++seed) ;
SubMtx_columnIndices(mtxU, &ncolU, &colindU) ;
IVcopy(ncolU, colindU, ivec) ;
IVqsortUp(ncolU, colindU) ;
IVfree(ivec) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize U SubMtx object",
t2 - t1) ;
fprintf(msgFile, "\n U = zeros(%d,%d) ;", nrowD, size) ;
SubMtx_writeForMatlab(mtxU, "U", msgFile) ;
if ( CHV_IS_NONSYMMETRIC(chvT) ) {
/*
----------------------------
initialize the L SubMtx object
----------------------------
*/
MARKTIME(t1) ;
mtxL = SubMtx_new() ;
if ( CHV_IS_REAL(chvT) ) {
if ( sparsityflag == 0 ) {
SubMtx_initRandom(mtxL, SPOOLES_REAL, SUBMTX_DENSE_ROWS,
0, 0, ncolU, nrowD, nentU, ++seed) ;
} else {
SubMtx_initRandom(mtxL, SPOOLES_REAL, SUBMTX_SPARSE_ROWS,
0, 0, ncolU, nrowD, nentU, ++seed) ;
}
} else if ( CHV_IS_COMPLEX(chvT) ) {
if ( sparsityflag == 0 ) {
SubMtx_initRandom(mtxL, SPOOLES_COMPLEX, SUBMTX_DENSE_ROWS,
0, 0, ncolU, nrowD, nentU, ++seed) ;
} else {
SubMtx_initRandom(mtxL, SPOOLES_COMPLEX, SUBMTX_SPARSE_ROWS,
0, 0, ncolU, nrowD, nentU, ++seed) ;
}
}
SubMtx_rowIndices(mtxL, &nrowL, &rowindL) ;
IVcopy(nrowL, rowindL, colindU) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize L SubMtx object",
t2 - t1) ;
fprintf(msgFile, "\n L = zeros(%d,%d) ;", size, nrowD) ;
SubMtx_writeForMatlab(mtxL, "L", msgFile) ;
} else {
mtxL = NULL ;
}
/*
--------------------------------
compute the matrix-matrix update
--------------------------------
*/
tempDV = DV_new() ;
ops = 8*nrowD*nrowD*ncolU ;
if ( CHV_IS_SYMMETRIC(chvT) ) {
Chv_updateS(chvT, mtxD, mtxU, tempDV) ;
} else if ( CHV_IS_HERMITIAN(chvT) ) {
Chv_updateH(chvT, mtxD, mtxU, tempDV) ;
} else if ( CHV_IS_NONSYMMETRIC(chvT) ) {
Chv_updateN(chvT, mtxL, mtxD, mtxU, tempDV) ;
}
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to compute m-m, %.3f mflops",
t2 - t1, ops*1.e-6/(t2 - t1)) ;
if ( msglvl > 1 ) {
fprintf(msgFile, "\n\n %% Z Chv object") ;
fprintf(msgFile, "\n Z = zeros(%d,%d); ", size, size) ;
Chv_writeForMatlab(chvT, "Z", msgFile) ;
fflush(msgFile) ;
}
/*
-----------------
check with matlab
-----------------
*/
if ( msglvl > 1 ) {
if ( CHV_IS_HERMITIAN(chvT) ) {
fprintf(msgFile, "\n\n B = ctranspose(U) * D * U ;") ;
} else if ( CHV_IS_SYMMETRIC(chvT) ) {
fprintf(msgFile, "\n\n B = transpose(U) * D * U ;") ;
} else {
fprintf(msgFile, "\n\n B = L * D * U ;") ;
}
fprintf(msgFile,
"\n\n for irow = 1:%d"
"\n for jcol = 1:%d"
"\n if T(irow,jcol) ~= 0.0"
"\n T(irow,jcol) = T(irow,jcol) - B(irow,jcol) ;"
"\n end"
"\n end"
"\n end"
"\n emtx = abs(Z - T) ;",
size, size) ;
fprintf(msgFile, "\n\n maxabs = max(max(emtx)) ") ;
fflush(msgFile) ;
}
/*
------------------------
free the working storage
------------------------
*/
if ( mtxL != NULL ) {
SubMtx_free(mtxL) ;
}
Chv_free(chvT) ;
SubMtx_free(mtxD) ;
SubMtx_free(mtxU) ;
DV_free(tempDV) ;
Drand_free(drand) ;
fprintf(msgFile, "\n") ;
return(1) ; }
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
---------------------------------------
test the Chv_addChevron() method.
created -- 98apr18, cca
---------------------------------------
*/
{
Chv *chv ;
double alpha[2] ;
double imag, real, t1, t2 ;
double *chvent, *entries ;
Drand *drand ;
FILE *msgFile ;
int chvsize, count, ichv, ierr, ii, iloc, irow, jcol,
lastcol, msglvl, ncol, nD, nent, nL, nrow, nU,
off, seed, symflag, type, upper ;
int *chvind, *colind, *keys, *rowind, *temp ;
if ( argc != 10 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile nD nU type symflag seed "
"\n alphareal alphaimag"
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n nD -- # of rows and columns in the (1,1) block"
"\n nU -- # of columns in the (1,2) block"
"\n type -- entries type"
"\n 1 --> real"
"\n 2 --> complex"
"\n symflag -- symmetry flag"
"\n 0 --> symmetric"
"\n 1 --> hermitian"
"\n 2 --> nonsymmetric"
"\n seed -- random number seed"
"\n alpha -- scaling parameter"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
exit(-1) ;
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
nD = atoi(argv[3]) ;
nU = atoi(argv[4]) ;
type = atoi(argv[5]) ;
symflag = atoi(argv[6]) ;
seed = atoi(argv[7]) ;
alpha[0] = atof(argv[8]) ;
alpha[1] = atof(argv[9]) ;
if ( nD <= 0 || nU < 0 || symflag < 0 || symflag > 2 ) {
fprintf(stderr, "\n invalid input"
"\n nD = %d, nU = %d, symflag = %d\n", nD, nU, symflag) ;
exit(-1) ;
}
fprintf(msgFile, "\n alpha = %12.4e + %12.4e*i ;", alpha[0], alpha[1]) ;
nL = nU ;
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new() ;
Drand_init(drand) ;
Drand_setSeed(drand, seed) ;
Drand_setUniform(drand, -1.0, 1.0) ;
/*
----------------------------
initialize the Chv object
----------------------------
*/
MARKTIME(t1) ;
chv = Chv_new() ;
Chv_init(chv, 0, nD, nL, nU, type, symflag) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize chv object",
t2 - t1) ;
fflush(msgFile) ;
Chv_columnIndices(chv, &ncol, &colind) ;
temp = IVinit(2*(nD+nU), -1) ;
IVramp(2*(nD+nU), temp, 0, 1) ;
IVshuffle(2*(nD+nU), temp, ++seed) ;
IVcopy(ncol, colind, temp) ;
IVqsortUp(ncol, colind) ;
if ( CHV_IS_NONSYMMETRIC(chv) ) {
Chv_rowIndices(chv, &nrow, &rowind) ;
IVcopy(nrow, rowind, colind) ;
}
if ( msglvl > 2 ) {
fprintf(msgFile, "\n %% column indices") ;
IVfprintf(msgFile, ncol, colind) ;
}
lastcol = colind[ncol-1] ;
nent = Chv_nent(chv) ;
entries = Chv_entries(chv) ;
if ( CHV_IS_REAL(chv) ) {
Drand_fillDvector(drand, nent, entries) ;
} else if ( CHV_IS_COMPLEX(chv) ) {
Drand_fillDvector(drand, 2*nent, entries) ;
}
if ( CHV_IS_HERMITIAN(chv) ) {
/*
---------------------------------------------------------
hermitian example, set imaginary part of diagonal to zero
---------------------------------------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
Chv_complexEntry(chv, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chv, irow, irow, real, 0.0) ;
}
}
if ( msglvl > 1 ) {
fprintf(msgFile, "\n a = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
Chv_writeForMatlab(chv, "a", msgFile) ;
}
/*
--------------------------------------------------
fill a chevron with random numbers and indices
that are a subset of a front's, as in the assembly
of original matrix entries.
--------------------------------------------------
*/
Drand_setUniform(drand, 0, nD) ;
iloc = (int) Drand_value(drand) ;
ichv = colind[iloc] ;
if ( CHV_IS_SYMMETRIC(chv) || CHV_IS_HERMITIAN(chv) ) {
upper = nD - iloc + nU ;
} else {
upper = 2*(nD - iloc) - 1 + nL + nU ;
}
Drand_setUniform(drand, 1, upper) ;
chvsize = (int) Drand_value(drand) ;
fprintf(msgFile, "\n %% iloc = %d, ichv = %d, chvsize = %d",
iloc, ichv, chvsize) ;
chvind = IVinit(chvsize, -1) ;
chvent = DVinit(2*chvsize, 0.0) ;
Drand_setNormal(drand, 0.0, 1.0) ;
if ( CHV_IS_REAL(chv) ) {
Drand_fillDvector(drand, chvsize, chvent) ;
} else if ( CHV_IS_COMPLEX(chv) ) {
Drand_fillDvector(drand, 2*chvsize, chvent) ;
}
keys = IVinit(upper+1, -1) ;
keys[0] = 0 ;
if ( CHV_IS_SYMMETRIC(chv) || CHV_IS_HERMITIAN(chv) ) {
for ( ii = iloc + 1, count = 1 ; ii < nD + nU ; ii++ ) {
keys[count++] = colind[ii] - ichv ;
}
} else {
for ( ii = iloc + 1, count = 1 ; ii < nD + nU ; ii++ ) {
keys[count++] = colind[ii] - ichv ;
keys[count++] = - colind[ii] + ichv ;
}
}
if ( msglvl > 3 ) {
fprintf(msgFile, "\n %% iloc = %d, ichv = %d", iloc, ichv) ;
fprintf(msgFile, "\n %% upper = %d", upper) ;
fprintf(msgFile, "\n %% chvsize = %d", chvsize) ;
fprintf(msgFile, "\n %% initial keys") ;
IVfprintf(msgFile, count, keys) ;
}
IVshuffle(count, keys, ++seed) ;
if ( msglvl > 3 ) {
fprintf(msgFile, "\n %% shuffled keys") ;
IVfp80(msgFile, count, keys, 80, &ierr) ;
}
IVcopy(chvsize, chvind, keys) ;
if ( CHV_IS_REAL(chv) ) {
IVDVqsortUp(chvsize, chvind, chvent) ;
} else if ( CHV_IS_COMPLEX(chv) ) {
IVZVqsortUp(chvsize, chvind, chvent) ;
}
if ( msglvl > 3 ) {
fprintf(msgFile, "\n %% chvind") ;
IVfprintf(msgFile, chvsize, chvind) ;
}
if ( CHV_IS_HERMITIAN(chv) ) {
for ( ii = 0 ; ii < chvsize ; ii++ ) {
if ( chvind[ii] == 0 ) {
chvent[2*ii+1] = 0.0 ;
}
}
}
if ( msglvl > 1 ) {
fprintf(msgFile, "\n b = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
if ( CHV_IS_REAL(chv) ) {
if ( CHV_IS_SYMMETRIC(chv) ) {
for ( ii = 0 ; ii < chvsize ; ii++ ) {
off = chvind[ii] ;
fprintf(msgFile, "\n b(%d,%d) = %20.12e ;",
colind[iloc]+1, colind[iloc]+off+1, chvent[ii]) ;
fprintf(msgFile, "\n b(%d,%d) = %20.12e ;",
colind[iloc]+off+1, colind[iloc]+1, chvent[ii]) ;
}
} else {
for ( ii = 0 ; ii < chvsize ; ii++ ) {
off = chvind[ii] ;
if ( off > 0 ) {
fprintf(msgFile, "\n b(%d,%d) = %20.12e ;",
colind[iloc]+1, colind[iloc]+off+1, chvent[ii]) ;
} else {
fprintf(msgFile, "\n b(%d,%d) = %20.12e ;",
colind[iloc]-off+1, colind[iloc]+1, chvent[ii]) ;
}
}
}
} else if ( CHV_IS_COMPLEX(chv) ) {
if ( CHV_IS_SYMMETRIC(chv) || CHV_IS_HERMITIAN(chv) ) {
for ( ii = 0 ; ii < chvsize ; ii++ ) {
off = chvind[ii] ;
fprintf(msgFile, "\n b(%d,%d) = %20.12e + %20.12e*i;",
colind[iloc]+1, colind[iloc]+off+1,
chvent[2*ii], chvent[2*ii+1]) ;
if ( CHV_IS_HERMITIAN(chv) ) {
fprintf(msgFile, "\n b(%d,%d) = %20.12e + %20.12e*i;",
colind[iloc]+off+1, colind[iloc]+1,
chvent[2*ii], -chvent[2*ii+1]) ;
} else {
fprintf(msgFile, "\n b(%d,%d) = %20.12e + %20.12e*i;",
colind[iloc]+off+1, colind[iloc]+1,
chvent[2*ii], chvent[2*ii+1]) ;
}
}
} else {
for ( ii = 0 ; ii < chvsize ; ii++ ) {
off = chvind[ii] ;
if ( off > 0 ) {
fprintf(msgFile, "\n b(%d,%d) = %20.12e + %20.12e*i;",
colind[iloc]+1, colind[iloc]+off+1,
chvent[2*ii], chvent[2*ii+1]) ;
} else {
fprintf(msgFile, "\n b(%d,%d) = %20.12e + %20.12e*i;",
colind[iloc]-off+1, colind[iloc]+1,
chvent[2*ii], chvent[2*ii+1]) ;
}
}
}
}
}
/*
------------------------------------
add the chevron into the Chv object
------------------------------------
*/
Chv_addChevron(chv, alpha, ichv, chvsize, chvind, chvent) ;
if ( msglvl > 1 ) {
fprintf(msgFile, "\n %% after adding the chevron") ;
fprintf(msgFile, "\n c = zeros(%d,%d) ;", lastcol+1, lastcol+1) ;
Chv_writeForMatlab(chv, "c", msgFile) ;
}
/*
-----------------
compute the error
-----------------
*/
fprintf(msgFile, "\n max(max(abs(c - (a + alpha*b))))") ;
/*
------------------------
free the working storage
------------------------
*/
Chv_free(chv) ;
Drand_free(drand) ;
IVfree(temp) ;
IVfree(chvind) ;
DVfree(chvent) ;
IVfree(keys) ;
fprintf(msgFile, "\n") ;
return(1) ; }
/*
------------------------------------------------
purpose -- write out the entries in matlab style
created -- 98apr30, cca
------------------------------------------------
*/
void
Chv_writeForMatlab (
Chv *chv,
char *chvname,
FILE *fp
) {
int irow, jcol, ncol, nD, nL, nrow, nU ;
int *colind, *rowind ;
/*
---------------
check the input
---------------
*/
if ( chv == NULL || chvname == NULL || fp == NULL ) {
fprintf(stderr, "\n fatal error in Chv_writeForMatlab(%p,%p,%p)"
"\n bad input\n", chv, chvname, fp) ;
exit(-1) ;
}
if ( ! (CHV_IS_REAL(chv) || CHV_IS_COMPLEX(chv)) ) {
fprintf(stderr, "\n fatal error in Chv_writeForMatlab(%p,%p,%p)"
"\n bad type %d, must be SPOOLES_REAL or SPOOLES_COMPLEX\n",
chv, chvname, fp, chv->type) ;
exit(-1) ;
}
Chv_dimensions(chv, &nD, &nL, &nU) ;
Chv_rowIndices(chv, &nrow, &rowind) ;
Chv_columnIndices(chv, &ncol, &colind) ;
if ( CHV_IS_REAL(chv) ) {
double value ;
/*
-------------------------
write out the (1,1) block
-------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
for ( jcol = 0 ; jcol < nD ; jcol++ ) {
Chv_realEntry(chv, irow, jcol, &value) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e ;",
chvname, 1+rowind[irow], 1+colind[jcol], value) ;
}
}
/*
-------------------------
write out the (1,2) block
-------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
for ( jcol = nD ; jcol < ncol ; jcol++ ) {
Chv_realEntry(chv, irow, jcol, &value) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e ;",
chvname, 1+rowind[irow], 1+colind[jcol], value) ;
}
}
/*
-------------------------
write out the (2,1) block
-------------------------
*/
for ( irow = nD ; irow < nrow ; irow++ ) {
for ( jcol = 0 ; jcol < nD ; jcol++ ) {
Chv_realEntry(chv, irow, jcol, &value) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e ;",
chvname, 1+rowind[irow], 1+colind[jcol], value) ;
}
}
} else if ( CHV_IS_COMPLEX(chv) ) {
double imag, real ;
/*
-------------------------
write out the (1,1) block
-------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
for ( jcol = 0 ; jcol < nD ; jcol++ ) {
Chv_complexEntry(chv, irow, jcol, &real, &imag) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e + %20.12e*i;",
chvname, 1+rowind[irow], 1+colind[jcol],
real, imag) ;
}
}
/*
-------------------------
write out the (1,2) block
-------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
for ( jcol = nD ; jcol < ncol ; jcol++ ) {
Chv_complexEntry(chv, irow, jcol, &real, &imag) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e + %20.12e*i;",
chvname, 1+rowind[irow], 1+colind[jcol],
real, imag) ;
}
}
/*
-------------------------
write out the (2,1) block
-------------------------
*/
for ( irow = nD ; irow < nrow ; irow++ ) {
for ( jcol = 0 ; jcol < nD ; jcol++ ) {
Chv_complexEntry(chv, irow, jcol, &real, &imag) ;
fprintf(fp, "\n %s(%d,%d) = %20.12e + %20.12e*i;",
chvname, 1+rowind[irow], 1+colind[jcol],
real, imag) ;
}
}
}
return ; }
/*--------------------------------------------------------------------*/
int
main ( int argc, char *argv[] )
/*
---------------------------------------------------
test the Chv_findPivot(), swap and update methods.
the program's output is a matlab file
to check correctness of the code.
created -- 98jan24, cca
---------------------------------------------------
*/
{
Chv *chv ;
double imag, real, tau, t1, t2 ;
double *entries ;
Drand *drand ;
DV *workDV ;
FILE *msgFile ;
int icol, ii, ipvt, irow, jcol, jpvt, jrow, msglvl, ncol, nD,
ndelay, nent, nL, nrow, ntest, nU, rc, pivotsize, seed,
symflag, tag, temp, type ;
int *colind, *rowind ;
if ( argc != 9 ) {
fprintf(stdout,
"\n\n usage : %s msglvl msgFile nD nU type symflag seed tau "
"\n msglvl -- message level"
"\n msgFile -- message file"
"\n nD -- # of rows and columns in the (1,1) block"
"\n nU -- # of columns in the (1,2) block"
"\n type -- entries type"
"\n 1 --> real"
"\n 2 --> complex"
"\n symflag -- symmetry flag"
"\n 0 --> symmetric"
"\n 1 --> hermitian"
"\n 2 --> nonsymmetric"
"\n seed -- random number seed"
"\n tau -- bound on magnitudes of factor entries"
"\n", argv[0]) ;
return(0) ;
}
if ( (msglvl = atoi(argv[1])) < 0 ) {
fprintf(stderr, "\n message level must be positive\n") ;
exit(-1) ;
}
if ( strcmp(argv[2], "stdout") == 0 ) {
msgFile = stdout ;
} else if ( (msgFile = fopen(argv[2], "a")) == NULL ) {
fprintf(stderr, "\n unable to open file %s\n", argv[2]) ;
return(-1) ;
}
nD = atoi(argv[3]) ;
nU = atoi(argv[4]) ;
type = atoi(argv[5]) ;
symflag = atoi(argv[6]) ;
seed = atoi(argv[7]) ;
tau = atof(argv[8]) ;
fprintf(msgFile, "\n %% testChv:"
"\n %% msglvl = %d"
"\n %% msgFile = %s"
"\n %% nD = %d"
"\n %% nU = %d"
"\n %% type = %d"
"\n %% symflag = %d"
"\n %% seed = %d"
"\n %% tau = %12.4e",
msglvl, argv[2], nD, nU, type, symflag, seed, tau) ;
nL = nU ;
nrow = nD + nL ;
ncol = nD + nU ;
/*
-----------------------------
check for errors in the input
-----------------------------
*/
if ( nD <= 0 || nU < 0
|| (symflag != SPOOLES_SYMMETRIC
&& symflag != SPOOLES_HERMITIAN
&& symflag != SPOOLES_NONSYMMETRIC) ) {
fprintf(stderr, "\n invalid input"
"\n nD = %d, nL = %d, nU = %d, symflag = %d\n",
nD, nL, nU, symflag) ;
exit(-1) ;
}
if ( (symflag == SPOOLES_SYMMETRIC || symflag == SPOOLES_HERMITIAN)
&& nL != nU ) {
fprintf(stderr, "\n invalid input"
"\n symflag = %d, nL = %d, nU = %d", symflag, nL, nU) ;
exit(-1) ;
}
fprintf(msgFile,
"\n nD = %d ;"
"\n nL = %d ;"
"\n nU = %d ;"
"\n nrow = nD + nL ;"
"\n ncol = nD + nU ;",
nD, nL, nU) ;
/*
--------------------------------------
initialize the random number generator
--------------------------------------
*/
drand = Drand_new() ;
Drand_init(drand) ;
Drand_setSeed(drand, seed) ;
Drand_setNormal(drand, 0.0, 1.0) ;
/*
--------------------------
initialize the Chv object
--------------------------
*/
MARKTIME(t1) ;
chv = Chv_new() ;
Chv_init(chv, 0, nD, nL, nU, type, symflag) ;
MARKTIME(t2) ;
fprintf(msgFile, "\n %% CPU : %.3f to initialize chv object",
t2 - t1) ;
fflush(msgFile) ;
Chv_columnIndices(chv, &ncol, &colind) ;
IVramp(ncol, colind, 0, 1) ;
if ( CHV_IS_NONSYMMETRIC(chv) ) {
Chv_rowIndices(chv, &nrow, &rowind) ;
IVramp(nrow, rowind, 0, 1) ;
}
/*
------------------------------------
load the entries with random entries
------------------------------------
*/
nent = Chv_nent(chv) ;
entries = Chv_entries(chv) ;
if ( CHV_IS_REAL(chv) ) {
Drand_fillDvector(drand, nent, entries) ;
} else if ( CHV_IS_COMPLEX(chv) ) {
Drand_fillDvector(drand, 2*nent, entries) ;
}
if ( msglvl > 4 ) {
fprintf(msgFile, "\n raw entries vector") ;
DVfprintf(msgFile, 2*nent, entries) ;
fflush(msgFile) ;
}
if ( CHV_IS_HERMITIAN(chv) ) {
/*
---------------------------------------------------------
hermitian example, set imaginary part of diagonal to zero
---------------------------------------------------------
*/
for ( irow = 0 ; irow < nD ; irow++ ) {
Chv_complexEntry(chv, irow, irow, &real, &imag) ;
Chv_setComplexEntry(chv, irow, irow, real, 0.0) ;
}
}
fprintf(msgFile, "\n %% matrix entries") ;
Chv_writeForMatlab(chv, "a", msgFile) ;
/*
------------
find a pivot
------------
*/
workDV = DV_new() ;
ndelay = 0 ;
ntest = 0 ;
pivotsize = Chv_findPivot(chv, workDV, tau, ndelay,
&irow, &jcol, &ntest) ;
fprintf(msgFile, "\n\n %% pivotsize = %d", pivotsize) ;
ipvt = irow ;
jpvt = jcol ;
if ( (symflag == SPOOLES_SYMMETRIC || symflag == SPOOLES_HERMITIAN)
&& irow > jcol ) {
temp = irow ;
irow = jcol ;
jcol = temp ;
}
fprintf(msgFile, "\n\n irow = %d ; \n jcol = %d ;", irow+1, jcol+1) ;
/*
-------------------------
swap the rows and columns
-------------------------
*/
if ( pivotsize == 0 ) {
exit(0) ;
} else if ( pivotsize == 1 ) {
fprintf(msgFile,
"\n b = a ;"
"\n xtemp = b(irow,:) ;"
"\n b(irow,:) = b(1,:) ;"
"\n b(1,:) = xtemp ;"
"\n xtemp = b(:,jcol) ;"
"\n b(:,jcol) = b(:,1) ;"
"\n b(:,1) = xtemp ;") ;
if ( CHV_IS_SYMMETRIC(chv) || symflag == CHV_IS_HERMITIAN(chv) ) {
Chv_swapRowsAndColumns(chv, 0, irow) ;
} else {
Chv_swapRows(chv, 0, irow) ;
Chv_swapColumns(chv, 0, jcol) ;
}
} else if ( pivotsize == 2 ) {
if ( symflag < 2 ) {
fprintf(msgFile,
"\n b = a ;"
"\n xtemp = b(irow,:) ;"
"\n b(irow,:) = b(1,:) ;"
"\n b(1,:) = xtemp ;"
"\n xtemp = b(:,irow) ;"
"\n b(:,irow) = b(:,1) ;"
"\n b(:,1) = xtemp ;"
"\n xtemp = b(jcol,:) ;"
"\n b(jcol,:) = b(2,:) ;"
"\n b(2,:) = xtemp ;"
"\n xtemp = b(:,jcol) ;"
"\n b(:,jcol) = b(:,2) ;"
"\n b(:,2) = xtemp ;") ;
Chv_swapRowsAndColumns(chv, 0, irow) ;
Chv_swapRowsAndColumns(chv, 1, jcol) ;
} else {
fprintf(stderr, "\n fatal error, symflag = %d, pvtsize = %d",
symflag, pivotsize) ;
exit(-1) ;
}
}
/*
-----------------------------------------
check that the swap was executed properly
-----------------------------------------
*/
fprintf(msgFile, "\n %% matrix entries") ;
Chv_writeForMatlab(chv, "c", msgFile) ;
fprintf(msgFile, "\n maxerrswap = norm(c - a)") ;
/*
---------------------------
ramp the indices once again
---------------------------
*/
IVramp(ncol, colind, 0, 1) ;
if ( CHV_IS_NONSYMMETRIC(chv) ) {
Chv_rowIndices(chv, &nrow, &rowind) ;
IVramp(nrow, rowind, 0, 1) ;
}
/*
-----------------------------------
perform the rank-1 or rank-2 update
-----------------------------------
*/
fprintf(msgFile, "\n\n ckeep = b ;") ;
fprintf(msgFile, "\n\n c = b ;") ;
if ( pivotsize == 1 ) {
rc = Chv_r1upd(chv) ;
fprintf(msgFile,
"\n\n d = c(1,1) ;"
"\n l = c(2:nrow,1)/d ;"
"\n u = c(1,2:ncol) ;") ;
if ( nD > 1 ) {
fprintf(msgFile,
"\n c(2:nrow,2:ncol) = c(2:nrow,2:ncol) - l*u ;") ;
}
fprintf(msgFile,
"\n u = u / d ;"
"\n c(1:1,1:1) = d ; "
"\n c(1:1,2:ncol) = u ; "
"\n c(2:ncol,1:1) = l ; ") ;
fprintf(msgFile, "\n c(nD+1:nrow,nD+1:ncol) = 0 ;") ;
} else {
rc = Chv_r2upd(chv) ;
fprintf(msgFile,
"\n\n d = c(1:2,1:2) ;"
"\n l = c(3:nrow,1:2) / d ;"
"\n u = c(1:2,3:ncol) ;") ;
if ( nD > 2 ) {
fprintf(msgFile,
"\n c(3:nrow,3:ncol) = c(3:nrow,3:ncol) - l*u ;") ;
}
fprintf(msgFile,
"\n u = d \\ u ; "
"\n c(1:2,1:2) = d ; "
"\n c(1:2,3:ncol) = u ; "
"\n c(3:ncol,1:2) = l ; ") ;
if ( nU > 0 ) {
fprintf(msgFile,
"\n c(nD+1:nrow,nD+1:ncol) = 0 ;") ;
}
}
fprintf(msgFile, "\n %% matrix entries after update") ;
Chv_writeForMatlab(chv, "f", msgFile) ;
fprintf(msgFile, "\n maxerrupd = norm(f - c)") ;
/*
------------------------------------------------------
check out the maximum magnitude of elements in l and u
------------------------------------------------------
*/
fprintf(msgFile, "\n ipvt = %d", ipvt + 1) ;
fprintf(msgFile, "\n jpvt = %d", jpvt + 1) ;
fprintf(msgFile, "\n pivotsize = %d", pivotsize) ;
fprintf(msgFile, "\n tau = %12.4e", tau) ;
if ( symflag < 2 ) {
fprintf(msgFile, "\n ubound = max(max(abs(u))) ") ;
} else {
fprintf(msgFile,
"\n lbound = max(max(abs(l))) "
"\n ubound = max(max(abs(u))) ") ;
}
/*
------------------------
free the working storage
------------------------
*/
Chv_free(chv) ;
Drand_free(drand) ;
DV_free(workDV) ;
fprintf(msgFile, "\n") ;
return(1) ; }