If CPU usage is 100% then close the all threads C#

Question

Hi 

 

Using TPL i am able to consume all cores of my machine, but sometimes  the CPU usage reached to 100%. My question is how can we forcefully tell to program the terminate the all threads which are currently using and reset the task again.

 
Below is my program - 

Parallel.For(0, loopCount, parallelOptions, loopno =>

{

for (int i = 0; i < tDSInput.Tables[0].Rows.Count; i++)

{

 

////////Here i want to chk the CPU usage (if cpu usage is > 95%) then stop all running threads else normal execution.  

 

var locker = new object();

Monitor.Enter(locker);

try

{

var tasks = Task.Factory.StartNew(() => ABC(), TaskCreationOptions.LongRunning)

.ContinueWith(t => DEF(), TaskContinuationOptions.ExecuteSynchronously)

.ContinueWith(t => GHI(), TaskContinuationOptions.ExecuteSynchronously)

.ContinueWith(t => JKL(), TaskContinuationOptions.ExecuteSynchronously)

....

....

....

....

....

....

.ContinueWith(t => XYZ(), TaskContinuationOptions.ExecuteSynchronously)

Task.WaitAll(tasks);

}

finally

{

Monitor.Exit(locker);

}

} 

} 

 

How do I do that?