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Showing posts with the label Python Multiprocessing

Thread Identifier In Multiprocessing Pool Workers

I believed Thread.ident as a unique identifier of threads but now I see different worker processes … Read more Thread Identifier In Multiprocessing Pool Workers

Python Multiprocessing, Can't Pickle Thread.lock (pymongo)

I have a class with the following method: def get_add_new_links(self, max_num_links): self.get_… Read more Python Multiprocessing, Can't Pickle Thread.lock (pymongo)

Python Multiprocessing - Overflowerror('cannot Serialize A Bytes Object Larger Than 4gib')

We are running a script using the multiprocessing library (python 3.6), where a big pd.DataFrame is… Read more Python Multiprocessing - Overflowerror('cannot Serialize A Bytes Object Larger Than 4gib')

Update Variable While Working With Processpoolexecutor

if __name__ == '__main__': MATCH_ID = str(doc_ref2.id) MATCH_ID_TEAM = doc_ref3.i… Read more Update Variable While Working With Processpoolexecutor

Generator Function Of Child Processes Runs In The Parent Process

I am trying to run a generator process in parallel by child processes. But when I tried to do this,… Read more Generator Function Of Child Processes Runs In The Parent Process

Using More Worker Processes Than There Are Cores

This example from PYMOTW gives an example of using multiprocessing.Pool() where the processes argum… Read more Using More Worker Processes Than There Are Cores

Python Multiprocessing/threading Code Exits Early

I'm trying to create multiple processes which each call multiple threads. I'm running the f… Read more Python Multiprocessing/threading Code Exits Early

Pickling Python Function Fails With Processpoolexecutor In A Decorator

So I asked this question and tried the ProcessPoolExecutor approach. I used the decorator suggested… Read more Pickling Python Function Fails With Processpoolexecutor In A Decorator

Tkinter Application 'freezes' While Continually Polling Pipe For Contents (multiprocessing)

I have two scripts: Processor_child.py: Its purpose is to perform a number of data analysis and cle… Read more Tkinter Application 'freezes' While Continually Polling Pipe For Contents (multiprocessing)

How Python Manager.dict() Locking Works:

A managers.dict() allow to share a dictionary across process and perform thread-safe operation. In … Read more How Python Manager.dict() Locking Works:

Multiple Process Is Not Getting Created Python

I am working on task where I am creating multiple process to run code in parallel to speed up proce… Read more Multiple Process Is Not Getting Created Python

Eof Error In Multiprocessing While Using Dictionary Type?

I have this following piece of code that does exactly what I want it to. However for files with fil… Read more Eof Error In Multiprocessing While Using Dictionary Type?

How To Pass Exception From One Process To Another?

I want to raise an exception in the upload function if the running status in stop function is '… Read more How To Pass Exception From One Process To Another?

Attribute Sharing Within A Class Using Multiprocessing

I have a class that has a dictionary as attribute. In this class, I run multiprocessing to fill up … Read more Attribute Sharing Within A Class Using Multiprocessing

Multiprocess Plotting In Matplotlib

How can one visualize data using matplotlib by a function in parallel? I.e. I want to create figure… Read more Multiprocess Plotting In Matplotlib

Optimizing Multiprocessing.pool With Expensive Initialization

Here is a complete simple working example import multiprocessing as mp import time import random … Read more Optimizing Multiprocessing.pool With Expensive Initialization

How To Get Python's Multiprocessing Array'pointer And Pass It To Cpp Program?

I now need to request arrays in python, and pass them into a Cpp program, yet python still needs to… Read more How To Get Python's Multiprocessing Array'pointer And Pass It To Cpp Program?

Python Asyncio Having Trouble With Running Two Infinite Functions Asynchronously

So I have been trying to run two functions simultaneously but one never seems to work unless I stop… Read more Python Asyncio Having Trouble With Running Two Infinite Functions Asynchronously

Python Threadpool With Limited Task Queue Size

My problem is the following: I have a multiprocessing.pool.ThreadPool object with worker_count work… Read more Python Threadpool With Limited Task Queue Size

Python Multiprocessing, Functions With Arguments

I have a program that simulates an entire baseball season, but does a lot of calculations per game,… Read more Python Multiprocessing, Functions With Arguments