Menu
Are lambda expressions multi-threaded?
Say when you write a mathematical formula as a lambda method, when you pass it to another method, would it be multi-threaded?
336
Lambda supports Python 2.7 and Python 3.6, both of which have multiprocessing and threading modules. The multiprocessing module supports multiple cores so it is a better choice, especially for CPU intensive workloads.
You have to be aware that mutating variables in a lambda expression is not thread-safe. Consider a sequence of concurrent tasks, each updating a shared counter. Note that the variable odds is effectively final. In our case, odds always refers to the same ArrayList object.
Create the Runnable interface reference and write the Lambda expression for the run() method. Create a Thread class object passing the above-created reference of the Runnable interface since the start() method is defined in the Thread class its object needs to be created. Invoke the start() method to run the thread.
For Windows you can run the program and then open task manager by pressing ctrl+shift+esc keys. Look for processes with a number in parentheses after the name: That is the number of tasks the program currently has active. Single-threaded programs won't have multiple tasks.
Not 100% clear on what you're asking.
Are you asking if lambdas are naturally run on a different thread?
If so no, they are just another instance of System.Delegate and run on the main thread unless specifically asked to do otherwise.
Are you asking if they are safe to run on multiple threads?
This is a question that can only be answered by knowing the contents of the lambda expression. They are not inherently thread safe. In my experience the are much less likely to be thread safe than you would expect.
94
No, they are executed on the thread they are created on unless you pass it to another thread, just like any other method. You would not want them to run on a different thread automatically, trust me.
28
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
