Hello,
I have updated my efficient Threadpool engine with priorities and my Threadpool engine to version 2.2, i have come up with a new algorithm that is more optimized, in this new algorithm i have reduced and minimized the cache-line transfers so that the serial part of the Amdahl law have been reduced by 2 times, hope that you will be happy with this new efficient algorithm... so as you have noticed that designing and implementing an efficient Threadpool engine as my efficient Threadpool engine with priorities is somewhat a hard job, so to facilitate the reasonning about concurrent programming i have also used my scalable AMLock around a small portion of the TPThreadPoolThread.Execute() method of my efficient Threadpool engine with priorities to facilitate the reasonning about "correctness", and i think that now that my new algorithm has facilitated the reasonning about correctness and now that i have tested it thoroughly , you can be more confident cause i think that my new algorithm of my efficient Threadpool engine with priorities is correct and stable now and it is also very fast. And look at the ThreadPoolExecutor Class of Java, look for example at the awaitTermination() method, it says: --- boolean awaitTermination(long timeout, TimeUnit unit) Blocks until all tasks have completed execution after a shutdown request, or the timeout occurs, or the current thread is interrupted, whichever happens first. -- read more here: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ThreadPoolExecutor.html#method.summary Did you notice ? In Java when you wait for the tasks you have to wait for "ALL" the tasks, and that's not efficient , and if you want to use the object from multiple threads i think it will have the same effect, you can avoid some of the problems by using many objects of the ThreadPoolExecutor class but this will take ressources and this will cause more and more context switches and that's bad, i think C# has the same problem, other than that Java and C# don't support priorities, it means that you can not give priorities to tasks/jobs, like high or normal or low, and that's not good for games and other applications where you have to use priorities even if the system is not a realtime system, this is why i have decided to implement my efficient Threadpool engine version 2.2 that supports those characteristics, so that you can create a child object of the Threadpool class that will use the same worker threads and that will wait only for the tasks that you will add with the execute() method , and also my efficient Threadpool engine supports 3 priorities, High and normal and low, that's where my efficient Threadpool engine comes in hand and that's where it's efficient. Hope you will like it. I will talk about an important subject that is software "reliability", you have seen me explaining to you what is that it's efficient and reliable with my efficient Threadpool engine, and you have seen me talking to you about the automaton of my efficient Threadpool engine , this automaton takes care of software "reliability", like in design by contracts that takes care of realiability, i have finally been able to render my efficient Threadpool engine a reliable software by using an automaton that "guides" you by helping you to avoid forbidden transitions that can cause problems like deadlocks and dangerous problems, my automaton has made my efficient threadpool engine a reliable software, i explain more: since i am using 3 methods called execute() that distributes the jobs to the worker threads and i am using also setCounter() method with a boolean as a parameter and using also wait() method that waits for the jobs to finish (this look like a join()) with two parameters, but what i have noticed is that you can call those methods by combining them in a different ways , but this can cause some combinations that are forbidden to be called and that can cause deadlock or dangerous problems, this is why i have wrote an automaton that help you and guide you by using also exception handling to use the right combinations of those methods and there parameters, so like in design by contracts, my automaton has made my efficient Threadpool engine a reliable software. Please read the HTML tutorial inside the zip file to understand how to use the execute() and setCounter() and wait() methods etc. You can download my efficient Threadpool engine with priorities version 2.2 from: https://sites.google.com/site/aminer68/threadpool-with-priorities And you can download my Threadpool engine version 2.2 from: https://sites.google.com/site/aminer68/threadpool Thank you, Amine Moulay Ramdane. -- --- You received this message because you are subscribed to the Google Groups "Scalable Synchronization Algorithms" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/lock-free/50186cd3-a912-4a2e-a51e-f773632162b8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
