// This function applies a strategy when the stored needed tile number equals to the current value of it
// where we would like to have tiles (multiple of server number) which are close to delta.
// This strategy will be prosperous for the next phase where the obtained tiles are divided between servers.
private void applyMinDiffSumStrategy(int[] indicesArray, ref Coords[] partition,
ref int neededTileNumber, Coords[] firstPartPartition, Coords[] secondPartPartition, int currentTileNO)
{
if (currentTileNO < neededTileNumber)
{
neededTileNumber = currentTileNO;
partition = new Coords[neededTileNumber];
firstPartPartition.CopyTo(partition, 0);
secondPartPartition.CopyTo(partition, firstPartPartition.Length);
partitionArray.SetValue(partition, indicesArray);
// when the needed tile number is decreased we should set the current value
// to current indices array
if (neededTileNumber >= serverNO)
{
double currentDiffSum = determineCurrentDiffSum(neededTileNumber,
firstPartPartition, secondPartPartition);
diffSumArray.SetValue(currentDiffSum, indicesArray);
}
}
else if ((currentTileNO == neededTileNumber) && (neededTileNumber >= serverNO))
{
double currentDiffSum = determineCurrentDiffSum(neededTileNumber, firstPartPartition, secondPartPartition);
double diffSum = (double)diffSumArray.GetValue(indicesArray);
if (currentDiffSum < diffSum)
{
diffSumArray.SetValue(currentDiffSum, indicesArray);
partition = new Coords[neededTileNumber];
firstPartPartition.CopyTo(partition, 0);
secondPartPartition.CopyTo(partition, firstPartPartition.Length);
partitionArray.SetValue(partition, indicesArray);
}
}
}
private void applySideDifferenceStrategy(int[] indicesArray, ref Coords[] partition,
ref int neededTileNumber, Coords[] firstPartPartition, Coords[] secondPartPartition, int currentTileNO,
int[] firstPartIndicesArray, int[] secondPartIndicesArray, int splitDimIdx, int[] movingIndicesArray)
{
if (currentTileNO < neededTileNumber)
{
neededTileNumber = currentTileNO;
partition = new Coords[neededTileNumber];
firstPartPartition.CopyTo(partition, 0);
secondPartPartition.CopyTo(partition, firstPartPartition.Length);
partitionArray.SetValue(partition, indicesArray);
}
else if (currentTileNO == neededTileNumber)
{
double currentDiff = determineCurrentDiffOfSides(splitDimIdx, indicesArray, movingIndicesArray);
double maxDiff = (double)maxDiffArray.GetValue(indicesArray);
if (maxDiff < currentDiff)
{
maxDiffArray.SetValue(currentDiff, indicesArray);
partition = new Coords[neededTileNumber];
firstPartPartition.CopyTo(partition, 0);
secondPartPartition.CopyTo(partition, firstPartPartition.Length);
partitionArray.SetValue(partition, indicesArray);
}
}
}
