// General parallel solution, using void Tasks with shared variable
private static long countParallelN1(int range, int taskCount)
{
int perTask = range / taskCount;
LongCounter lc = new LongCounter();
Parallel.For(0, taskCount, t =>
{ int from = perTask * t,
to = (t + 1 == taskCount) ? range : perTask * (t + 1);
for (int i = from; i < to; i++)
{
if (isPrime(i))
{
lc.increment();
}
}
});
return(lc.get());
}
// General parallel solution, using void Tasks with shared variable
private static long countParallelN1(int range, int taskCount)
{
int perTask = range / taskCount;
LongCounter lc = new LongCounter();
Parallel.For(0, taskCount, t =>
{ int from = perTask * t,
to = (t+1 == taskCount) ? range : perTask * (t+1);
for (int i=from; i<to; i++)
if (isPrime(i))
lc.increment();
});
return lc.get();
}