bool CLinkMatrix::rightMultiply(const C_FLOAT64 & alpha,
const CMatrix< C_FLOAT64> & m,
CMatrix< C_FLOAT64> & p) const
{
bool success = true;
if (m.numCols() != mRowPivots.size())
{
return false;
}
// p := alpha * (m1, m2) * (I, L0')' = alpha * m1 + alpha * m2 * L0
p.resize(m.numRows(), getNumIndependent());
char T = 'N';
C_INT M = (C_INT) p.numCols();
C_INT N = (C_INT) p.numRows();
C_INT K = (C_INT) numRows();
C_INT LDA = (C_INT) numCols();
C_INT LDB = (C_INT) m.numCols();
C_INT LDC = (C_INT) p.numCols();
// p := m1
C_FLOAT64 *pRowP = p.array();
const C_FLOAT64 *pRowM = m.array();
C_FLOAT64 *pEnd = p.array() + p.size();
for (; pRowP < pEnd; pRowP += LDC, pRowM += LDB)
{
memcpy(pRowP, pRowM, sizeof(C_FLOAT64) * LDC);
}
// DGEMM (TRANSA, TRANSB, M, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC)
// C := alpha A B + beta C
dgemm_(&T, &T, &M, &N, &K,
const_cast< C_FLOAT64 * >(&alpha),
const_cast< C_FLOAT64 * >(array()), &LDA,
const_cast< C_FLOAT64 * >(m.array()) + LDA, &LDB,
const_cast< C_FLOAT64 * >(&alpha), p.array(), &LDC);
return success;
}
C_FLOAT64 * CState::resize(const unsigned C_INT32 & size)
{
if (mSize != size)
{
C_FLOAT64 * pTmp = mpValues;
if (size > 0)
{
mpValues = new C_FLOAT64[size];
memcpy(mpValues, pTmp, sizeof(C_FLOAT64) * std::min(mSize, size));
}
else
mpValues = NULL;
pdeletev(pTmp);
mSize = size;
}
updateIterator(getNumIndependent(), getNumDependent(), getNumFixed());
return mpValues;
}
