public ParallelProcessor(Action <int, float> componentAction)
{
ParallelProcessorWorkers.Setup();
ParallelProcessorWorkers._processorInstanceCount++;
processActionData = new ProcessActionData[ParallelProcessorWorkers.MaxWorkerCount];
processActions = new Action[ParallelProcessorWorkers.MaxWorkerCount];
for (int i = 0; i < ParallelProcessorWorkers.MaxWorkerCount; ++i)
{
processActionData[i] = new ProcessActionData();
int threadID = i;
processActions[i] = () => {
//Thread.MemoryBarrier();
try {
ProcessActionData processData = processActionData[threadID];
for (int componentIndex = processData.startComponentIndex; componentIndex <= processData.endComponentIndex; ++componentIndex)
{
componentAction(componentIndex, processData.deltaTime);
}
}
catch (Exception e) {
Console.WriteLine("Error in ParallelSystemComponentsProcessor: " + e.Message);
UnityEngine.Debug.LogException(e);
}
finally {
//Interlocked.Decrement(ref workingCount);
lock (ParallelProcessorWorkers._workingCountLocker) {
ParallelProcessorWorkers._workingCount--;
Monitor.Pulse(ParallelProcessorWorkers._workingCountLocker);
}
}
};
}
}
public ParallelProcessorList(int initialSize, Thread[] otherThreads = null)
{
ParallelProcessorWorkers.Setup();
if (initialSize > 0)
{
threadLists = new List <List <T> >(initialSize);
}
else
{
threadLists = new List <List <T> >();
}
threadListLUT = new Dictionary <int, List <T> >(ParallelProcessorWorkers.MaxWorkerCount);
//Create worker thread lists
foreach (Thread t in ParallelProcessorWorkers.Workers)
{
List <T> list = new List <T>();
threadLists.Add(list);
threadListLUT[t.ManagedThreadId] = list;
}
//Also create lists for other threads?
if (otherThreads != null)
{
foreach (Thread t in otherThreads)
{
List <T> list = new List <T>();
threadLists.Add(list);
threadListLUT[t.ManagedThreadId] = list;
}
}
}
public void Process(int componentsToProcessCount, float deltaTime)
{
//Stop here if there are no components to process
if (componentsToProcessCount == 0)
{
return;
}
//Make sure we are not using more threads than components
int workersToUse = Math.Min(ParallelProcessorWorkers.MaxWorkerCount, componentsToProcessCount);
Interlocked.Exchange(ref ParallelProcessorWorkers._workingCount, workersToUse);
int componentChunk = (int)Math.Floor((float)componentsToProcessCount / (float)workersToUse);
for (int i = 0; i < workersToUse; ++i)
{
int workerID = i;
//Setup worker tasks
int startComponentIndex = workerID * componentChunk;
int endComponentIndex = 0;
if (workerID != workersToUse - 1)
{
endComponentIndex = (workerID * componentChunk) + componentChunk - 1;
}
//Work on last chunk. Last chunk has more elements than other chunks if (this.systemComponents.Count % this.maxThreads != 0)
else
{
endComponentIndex = componentsToProcessCount - 1;
}
//Set process action data
processActionData[workerID].deltaTime = deltaTime;
processActionData[workerID].startComponentIndex = startComponentIndex;
processActionData[workerID].endComponentIndex = endComponentIndex;
//Process action on worker
ParallelProcessorWorkers.EnqueueItem(processActions[workerID]);
}
/*
* //Wait for queue to finish
* long _workingCountCheck = Interlocked.Read(ref workingCount);
* while(_workingCountCheck > 0) {
* _workingCountCheck = Interlocked.Read(ref workingCount);
* }
*/
//Wait for queue to finish
lock (ParallelProcessorWorkers._workingCountLocker) {
while (ParallelProcessorWorkers._workingCount > 0)
{
Monitor.Wait(ParallelProcessorWorkers._workingCountLocker);
}
}
}
/// <summary>
/// Stop processing
/// </summary>
/// <param name="waitForWorkers"></param>
void Shutdown(bool waitForWorkers)
{
// Enqueue one null item per worker to make each exit.
foreach (Thread worker in ParallelProcessorWorkers.Workers)
{
ParallelProcessorWorkers.EnqueueItem(null);
}
// Wait for workers to finish
if (waitForWorkers)
{
foreach (Thread worker in ParallelProcessorWorkers.Workers)
{
worker.Join();
}
}
}
