internal static WarmStart NewEmptyWarmStart(OsiSolverInterface solver)
{
unsafe
{
return(new WarmStart(solver.getEmptyWarmStart(), 0, null, 0, null));
}
}
internal static WarmStart NewWarmStart(OsiSolverInterface solver)
{
unsafe
{
#if (SONNET_SETWARMROWPRICE)
return(new WarmStart(solver.getWarmStart(), solver.getNumCols(), solver.getColSolutionUnsafe(), solver.getNumCols(), solver.getRowPriceUnsafe()));
#else
return(new WarmStart(solver.getWarmStart(), solver.getNumCols(), solver.getColSolutionUnsafe(), 0, null));
#endif
}
}
internal void ApplyWarmStart(OsiSolverInterface solver)
{
Ensure.NotNull(solver, "solver");
unsafe
{
// set the primal solution
if (numberColumns > 0)
{
// if the new solver has *fewer* columns, then no problem.
// if the new solver has MORE columns, then make sure we dont copy wrong memory..
if (solver.getNumCols() > numberColumns)
{
int n = solver.getNumCols();
double[] newColSolution = new double[n];
fixed(double *newColSolutionPinned = newColSolution)
{
// copy the first NumberOfColumns into the new array
CoinUtils.CoinDisjointCopyN(colSolution, numberColumns, newColSolutionPinned);
// then fill it up with zeros
CoinUtils.CoinZeroN(&newColSolutionPinned[numberColumns], (n - numberColumns));
}
solver.setColSolution(newColSolution);
}
else
{
solver.setColSolutionUnsafe(colSolution);
}
// set the dual solution
if (numberRows > 0)
{
// if the new solver has *fewer* rows, then no problem.
// if the new solver has MORE rows, then make sure we dont copy wrong memory..
if (solver.getNumRows() > numberRows)
{
int m = solver.getNumRows();
double[] newRowPrice = new double[m];
fixed(double *newRowPricePinned = newRowPrice)
{
// copy the first NumberOfRows into the new array
CoinUtils.CoinDisjointCopyN(rowPrice, numberRows, newRowPricePinned);
// then fill it up with zeros
CoinUtils.CoinZeroN(&newRowPricePinned[numberRows], (m - numberRows));
}
solver.setRowPrice(newRowPrice);
}
else
{
solver.setRowPriceUnsafe(rowPrice);
}
}
}
#if (!SONNET_SETWARMROWPRICE)
if (numberRows > 0 || rowPrice != null)
{
throw new NotSupportedException();
}
#endif
}
// set the warmstart object
solver.setWarmStart(coinWarmStart);
}
