private void DoCalculation(CalculatePi _)
{
sum = 0;
nrAnswers = 0;
stopwatch = Stopwatch.StartNew();
foreach (var range in Distribute(RangeTo, NrParts))
worker.Tell(new Worker.CalculateRange(range));
}
/// <summary>
/// Kapselung der Erzeugung der Serie in eine Anzahl von gleichverteilten Einheiten
/// </summary>
/// <param name="calculatePi">Calculate pi.</param>
private IEnumerable <Worker.CalculateRange> Distribute(CalculatePi calculatePi)
{
int rangeStartAt = 0;
int nrPartsRemaining = calculatePi.NrUnits;
while (nrPartsRemaining > 0)
{
int rangeEndAt = rangeStartAt + (calculatePi.Series - rangeStartAt) / nrPartsRemaining;
yield return(new Worker.CalculateRange(rangeStartAt, rangeEndAt));
rangeStartAt = rangeEndAt + 1;
nrPartsRemaining--;
}
}
/// <summary>
/// Kommando Behandlung für CalculatePi
/// </summary>
/// <param name="calculatePi">Calculate Pi command</param>
private void CalculatePiHandler(CalculatePi calculatePi)
{
// wer hat die Berechung ursprünglich angefordert?
creator = Sender;
// Initialwert der Summe
sum = 0;
// mit zählen nicht vergessen
nrMissing = calculatePi.NrUnits;
// der Router kümmert sich um die Verteilung
foreach (var calculateRange in Distribute(calculatePi))
{
router.Tell(calculateRange);
}
}
/// <summary>
/// Kommando Behandlung für CalculatePi
/// </summary>
/// <param name="calculatePi">Calculate Pi command</param>
private void CalculatePiHandler(CalculatePi calculatePi)
{
// wer hat die Berechung angefordert?
creator = Sender;
// Initialwert der Summe
sum = 0;
// mit zählen nicht vergessen
nrMissing = calculatePi.NrUnits;
// lassen wir verteilt rechnen
foreach (var calculateRange in Distribute(calculatePi))
{
worker.Tell(calculateRange);
}
}
/// <summary>
/// Command Handler for CalculatePi.
/// </summary>
/// <param name="calculatePi">Calculate Pi command</param>
/// <description>
/// The calculation consists of these steps:
/// * initialize a sum with 0
/// * create the requested amount of workers
/// * spread the range from 0 to series among the workers
/// * sum up the workers' sum values
/// </description>
private void CalculatePiHandler(CalculatePi calculatePi)
{
creator = Sender;
sum = 0;
nrMissing = calculatePi.NrWorkers;
int workersLeft = calculatePi.NrWorkers;
int series = calculatePi.Series;
int minWorkUnit = 0;
while (workersLeft > 0)
{
int maxWorkUnit = minWorkUnit + (series - minWorkUnit) / workersLeft;
var worker = Context.ActorOf<Worker>();
worker.Tell(new Worker.CalculateRange(minWorkUnit, maxWorkUnit));
minWorkUnit = maxWorkUnit + 1;
workersLeft--;
}
}
/// <summary>
/// Command Handler for CalculatePi.
/// </summary>
/// <param name="calculatePi">Calculate Pi command</param>
/// <description>
/// The calculation consists of these steps:
/// * initialize a sum with 0
/// * create the requested amount of workers
/// * spread the range from 0 to series among the workers
/// * sum up the workers' sum values
/// </description>
private void CalculatePiHandler(CalculatePi calculatePi)
{
// remember who created this message to send back answer
creator = Sender;
// initial value for sum to be calculated
sum = 0;
// nr of missing result values for completed sum
nrMissing = calculatePi.NrUnits;
// split up to approximately same-sized units
int unitsLeft = calculatePi.NrUnits;
int minWorkUnit = 0;
while (unitsLeft > 0)
{
int maxWorkUnit = minWorkUnit + (calculatePi.Series - minWorkUnit) / unitsLeft;
worker.Tell(new Worker.CalculateRange(minWorkUnit, maxWorkUnit));
minWorkUnit = maxWorkUnit + 1;
unitsLeft--;
}
}
