void rSparseMatrix::setIdentity(double scalar)
{
if (nRow != nCol) {
rError("rSparseMatrix:: Identity matrix must be square matrix");
}
int length,step,index=0;
switch(Sp_De_Di) {
case SPARSE:
if (nCol > NonZeroNumber) {
rError("rSparseMatrix:: cannot store over NonZeroNumber");
// the number of Diagonal elements equals nCol.
}
NonZeroCount = nCol;
NonZeroEffect = nCol;
for (index=0; index< NonZeroCount; ++index) {
row_index[index] = index;
column_index[index] = index;
sp_ele[index] = scalar;
}
break;
case DENSE:
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
step = nCol+1;
catlas_dset(nCol,scalar,de_ele,step);
// only diagonal elements are the value of scalar.
break;
case DIAGONAL:
catlas_dset(nCol,scalar,di_ele,IONE);
break;
}
}
void rDenseMatrix::
initialize(int nRow, int nCol,
rDenseMatrix::rDeMat_De_Di De_Di)
{
// rMessage("rDenseMatrix::initialize");
rDenseMatrix();
if (nRow<=0 || nCol<=0) {
rError("rDenseMatrix:: Dimensions are nonpositive");
}
int old_length = this->nRow*this->nCol;
if (this->De_Di==DIAGONAL) {
old_length = this->nRow;
}
this->nRow = nRow;
this->nCol = nCol;
this->De_Di = De_Di;
int length;
switch(De_Di) {
case DENSE:
length = nRow*nCol;
if (de_ele && old_length!=length) {
delete[] de_ele;
de_ele = NULL;
}
if (de_ele==NULL) {
rNewCheck();
de_ele = new double[length];
if (de_ele==NULL) {
rError("rDenseMatrix:: memory exhausted");
}
}
catlas_dset(length,DZERO,de_ele,IONE);
break;
case DIAGONAL:
if (nRow!=nCol) {
rError("rDenseMatrix:: Diagonal must be Square matrix");
}
if (di_ele && old_length!=nRow) {
delete[] di_ele;
di_ele = NULL;
}
if (di_ele==NULL) {
rNewCheck();
di_ele = new double[nCol];
if (di_ele==NULL) {
rError("rDenseMatrix:: memory exhausted");
}
}
catlas_dset(nCol,DZERO,di_ele,IONE);
break;
}
}
void setA(double *du, double *dc, double *dl, int m, int n, double mu) {
catlas_dset(m-1, -mu, du, 1);
catlas_dset(m, (1+2*mu), dc, 1);
catlas_dset(m-1, -mu, dl, 1);
dc[0] = 1;
du[0] = 0;
dc[m-1] = 1;
dl[m-2] = -1;
}
void rDenseMatrix::setZero()
{
int length;
switch(De_Di) {
case DENSE:
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
break;
case DIAGONAL:
catlas_dset(nCol,DZERO,di_ele,IONE);
break;
}
}
void rDenseMatrix::setIdentity(double scalar)
{
if (nRow != nCol) {
rError("rSparseMatrix:: Identity matrix must be square matrix");
}
int length,step;
switch(De_Di) {
case DENSE:
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
step = nCol+1;
catlas_dset(nCol,scalar,de_ele,step);
break;
case DIAGONAL:
catlas_dset(nCol,scalar,di_ele,IONE);
break;
}
}
void rSparseMatrix::setZero()
{
int length;
switch(Sp_De_Di) {
case SPARSE:
NonZeroCount = 0;
NonZeroEffect = 0;
// No element is stored.
break;
case DENSE:
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
break;
case DIAGONAL:
catlas_dset(nCol,DZERO,di_ele,IONE);
break;
}
}
void rVector::initialize(double value)
{
if (nDim<=0) {
rError("rVector:: nDim is nonpositive");
}
if (ele==NULL) {
rNewCheck();
ele = new double[nDim];
if (ele==NULL) {
rError("rVector:: memory exhausted");
}
}
catlas_dset(nDim,value,ele,IONE);
}
void rSparseMatrix::changeToDense(bool forceChange)
{
if (Sp_De_Di!=SPARSE) {
return;
}
// if (false)
// rMessage(" NonZeroCount " << NonZeroCount);
// rMessage(" nRow*nCol*0.2 " << nRow*nCol*0.2);
if (forceChange == false && NonZeroCount < (nRow*nCol) * 0.20) {
// if the number of elements are less than 20 percent,
// we don't change to Dense.
return;
}
// rMessage("change");
Sp_De_Di = DENSE;
de_ele = NULL;
int length = nRow*nCol;
rNewCheck();
de_ele = new double[length];
if (de_ele==NULL) {
rError("rSparseMatrix:: memory exhausted");
}
catlas_dset(length,DZERO,de_ele,IONE);
// all elements are set 0.
for (int index=0; index<NonZeroCount; ++index) {
int i = row_index[index];
int j = column_index[index];
double value = sp_ele[index];
if (i==j) {
de_ele[i+nCol*j] = value;
} else {
de_ele[i+nCol*j] = de_ele[j+nCol*i] = value;
}
}
NonZeroCount = NonZeroNumber = NonZeroEffect = length;
if (row_index != NULL) {
delete[] row_index;
}
if (column_index != NULL) {
delete[] column_index;
}
if (sp_ele != NULL) {
delete[] sp_ele;
}
row_index = NULL;
column_index = NULL;
sp_ele = NULL;
}
void rVector::initialize(int nDim,double value)
{
// rMessage("rVector initialize");
if (ele && this->nDim!=nDim) {
if (ele) {
delete[] ele;
ele = NULL;
}
if (nDim<=0) {
rError("rVector:: nDim is nonpositive");
}
}
this->nDim = nDim;
if (ele==NULL) {
ele = NULL;
rNewCheck();
ele = new double[nDim];
if (ele==NULL) {
rError("rVector:: memory exhausted");
}
}
catlas_dset(nDim,value,ele,IONE);
}
JNIEXPORT void JNICALL Java_uncomplicate_neanderthal_CBLAS_dset
(JNIEnv *env, jclass clazz, jint N, jdouble alpha, jobject X, jint offsetX, jint incX) {
double *cX = (double *) (*env)->GetDirectBufferAddress(env, X);
catlas_dset(N, alpha, cX + offsetX, incX);
};
bool rDenseMatrix::copyFrom(rSparseMatrix& other)
{
int length,index=0;
switch(other.Sp_De_Di) {
case rSparseMatrix::SPARSE:
De_Di = DENSE;
if (de_ele) {
delete[] de_ele;
}
de_ele = NULL;
nRow = other.nRow;
nCol = other.nCol;
rNewCheck();
de_ele = new double[nRow*nCol];
if (de_ele==NULL) {
rError("rDenseMatrix:: memory exhausted");
}
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
for (index = 0; index<other.NonZeroCount; ++index) {
int i = other.row_index[index];
int j = other.column_index[index];
double value = other.sp_ele[index];
de_ele[i+nCol*j] = de_ele[j+nCol*i] = value;
}
break;
case rSparseMatrix::DENSE:
De_Di = DENSE;
if (de_ele && (other.nRow!=nRow || other.nCol!=nCol)) {
delete[] de_ele;
de_ele = NULL;
}
nRow = other.nRow;
nCol = other.nCol;
rNewCheck();
de_ele = new double[nRow*nCol];
if (de_ele==NULL) {
rError("rDenseMatrix:: memory exhausted");
}
length = nRow*nCol;
dcopy(&length,other.de_ele,&IONE,de_ele,&IONE);
break;
case rSparseMatrix::DIAGONAL:
De_Di = DIAGONAL;
if (di_ele && (other.nRow!=nRow || other.nCol!=nCol)) {
delete[] di_ele;
di_ele = NULL;
}
nRow = other.nRow;
nCol = other.nCol;
if (di_ele==NULL) {
rNewCheck();
di_ele = new double[nCol];
if (di_ele==NULL) {
rError("rDenseMatrix:: memory exhausted");
}
}
dcopy(&nCol,other.di_ele,&IONE,di_ele,&IONE);
break;
}
return _SUCCESS;
}
void rSparseMatrix::
initialize(int nRow, int nCol,
rSparseMatrix::rSpMat_Sp_De_Di Sp_De_Di,
int NonZeroNumber)
{
// rMessage("rSparseMatrix initialize");
rSparseMatrix();
if (nRow<=0 || nCol<=0) {
rError("rSparseMatrix:: Dimensions are nonpositive");
}
this->nRow = nRow;
this->nCol = nCol;
this->Sp_De_Di = Sp_De_Di;
int length;
row_index = NULL;
column_index = NULL;
sp_ele = NULL;
switch(Sp_De_Di) {
case SPARSE:
this->NonZeroNumber = NonZeroNumber;
this->NonZeroCount = 0;
this->NonZeroEffect = 0;
if (NonZeroNumber > 0) {
rNewCheck();
row_index = new int[NonZeroNumber];
rNewCheck();
column_index = new int[NonZeroNumber];
rNewCheck();
sp_ele = new double[NonZeroNumber];
if (row_index==NULL || column_index==NULL
|| sp_ele==NULL) {
rError("rSparseMatrix:: memory exhausted");
}
}
break;
case DENSE:
this->NonZeroNumber = nRow*nCol;
this->NonZeroCount = nRow*nCol;
this->NonZeroEffect = nRow*nCol;
rNewCheck();
de_ele = new double[NonZeroNumber];
if (de_ele==NULL) {
rError("rSparseMatrix:: memory exhausted");
}
length = nRow*nCol;
catlas_dset(length,DZERO,de_ele,IONE);
// all elements are 0.
break;
case DIAGONAL:
if (nRow!=nCol) {
rError("rSparseMatrix:: Diagonal must be Square matrix");
}
this->NonZeroNumber = nCol;
this->NonZeroCount = nCol;
this->NonZeroEffect = nCol;
if (di_ele==NULL) {
rNewCheck();
di_ele = new double[NonZeroNumber];
if (di_ele==NULL) {
rError("rSparseMatrix:: memory exhausted");
}
}
catlas_dset(nCol,DZERO,di_ele,IONE);
// all elements are 0.
break;
}
}
void SGVector<float64_t>::set_const(float64_t const_elem)
{
catlas_dset(vlen, const_elem, vector, 1);
}
/*
* Force boundary conditions
*/
void forceBoundaryConditions(double *U, int m, int n, double x) {
catlas_dset((R+1), x, U, 1);
catlas_dset((R+1), x, &U[R*(R+1)], 1);
catlas_dset((R+1), x, U, (R+1));
catlas_dset((R+1), x, &U[R], (R+1));
}
void SGVector<float64_t>::set_const(float64_t const_elem)
{
assert_on_cpu();
catlas_dset(vlen, const_elem, vector, 1);
}