/// <summary>
/// Starts a number of parallel tasks.
/// </summary>
public (long, int) DoIt(RewriterTaskFactory factory)
{
var taskUnits = new List <RewriterTask>();
for (int i = 0; i < workUnit.Length; i += chunkSize)
{
taskUnits.Add(factory.Create(workUnit, i, i + chunkSize));
}
var results = new TaskResult[taskUnits.Count];
#if !NO_PARALLEL_THREADS
var msec = Time(() => Parallel.ForEach(taskUnits, (src, state, n) =>
{
results[n] = src.Run();
}));
#else
var msec = Time(() =>
{
int n = -1;
foreach (var task in taskUnits)
{
++n;
results[n] = task.Run();
}
});
#endif
return(msec, results.Sum(r => r.Clusters !.Length));
}
private static void TestArchitecture(RekoConfigurationService cfg, ArchitectureDefinition archDef)
{
Console.Out.WriteLine("= Testing {0} ============", archDef.Description);
var work = MakeWorkUnit(cfg, archDef, 42);
if (work is null)
{
Console.Out.WriteLine("*** Failed to load {0}", archDef.Name);
return;
}
var factories = new RewriterTaskFactory[] {
new LinearTaskFactory(),
new ShingleTaskFactory(),
new LinearShingleTaskFactory()
};
foreach (var factory in factories)
{
CollectStatistics(work, factory);
}
}
private static void CollectStatistics(WorkUnit work, RewriterTaskFactory factory)
{
for (int chunkSize = MinChunkSize; chunkSize <= MemorySize; chunkSize *= 16)
{
Console.Out.WriteLine(" {0}, chunk size {1}", factory.Name, chunkSize);
long sum = 0;
long totClusters = 0;
for (int rep = 0; rep < CReps; ++rep)
{
var sc = new ChunkScanner(work, chunkSize);
var(msec, clusters) = sc.DoIt(factory);
sum += msec;
totClusters += clusters;
Console.Out.Write(" {0,7}", msec);
Console.Out.Flush();
GC.Collect();
}
var avg = sum / (double)CReps;
var perInstr = sum * 1000.0 / totClusters;
Console.Out.WriteLine(", avg: {0:0.000} msec; {1:0.000} usec/rtl cluster {2,6} clusters;", avg, perInstr, totClusters);
}
}
