Category "multithreading"

SLURM nodes, tasks, cores, and cpus

Would someone be able to clarify what each of these things actually are? From what I gathered, nodes are computing points within the cluster, essentially a sing

Locking thread and creating new cursors not resolving sqlite3 "recursive use of cursors not allowed"

I am trying to make a simple flask web server that presents two graphs of data using matplotlib from a DHT22 sensor stored in a sqlite3 database. The code is ba

Multi-threading and events exercise in Python

"Write a program using two threads such that one writes even numbers in increasing order and the other odd numbers in incresing order with respect to a certain

Exception in monitor thread while connecting to server <xyz> using mongo-driver-core-4.1.2 jar

I have upgraded mongo java driver <mongodb.version>3.12.8</mongodb.version> to mongodb-driver-legacy 4.1.2. since then when ever i am trying to up

How to prepare Data-Set for main thread in an additional thread and stay threadsafe?

Description: (Following is only a low level description) Assume you have a List of automates, one of people and one of tasks. The corresponding Data comes from

LINQ script class throwing TaskCanceledException Error

I am working on .NET CORE 6 application along with Entity Framework CORE 7. I have class where I have written LINQ script. This is async method. I am not sure w

python win32ui.error: BitBlt failed & CreateCompatibleBitmap failed in multithreading

I'm here to ask for help on a recent problem I encountered with my program.... I am getting this error when I try to use BitBlt and CreateCompatibleBitmap: win3

How do I create a child process with clone and use waitpid to wait until its done?

The code below is wrong for at least 2 reasons. I'll be rewriting this in assembly so I'll need the solution to be only linux system calls. What I'd like to do

Error Missing Type specifer - int assumed . Note C++ does not support default init

In order to make two objects, User1 and User2, of a class User sending and receiving messages, #include <iostream> using namespace std; class reply { p

What is the best mechanism to send data through queues in a multithreaded program?

I am making a multi-threaded application, where a main process sends messages to the appropriate thread through a queue. My doubt is in the part of the thread:

How do I speed up the running of terraform deployments using threading?

When creating terraform deployments, I have to wait until the command completes before running the next command. If I have multiple deployments in parallel - (t

multithreaded C++ read access violation 0XCDCDCDCD

I'm writing a simple multithreaded md5 hash cracker using a task farm, except i keep getting read access violations seemingly at random. heres the function the

UI thread slow to respond to Progress updaters on async Task method using VS2022 & Net6.0

I’ve run into a performance obstacle and I’m uncertain of the cause, all of this is running under VS2022 & Net6.0. As this is my 1st time using

Visible order of operations with acquire/release fence in C++

I have a following program which uses std::atomic_thread_fences: int data1 = 0; std::atomic<int> data2 = 0; std::atomic<int> state; int main() {

How to test a singleton generic template to be thread safe?

How do I make Singleton generic template, and how can I test it? Right now I am interested in seeing with my own eyes that 2 threads that invoke get_instance()

Python PyQt update GUI

basically I am having trouble with Updating my new GUI. Windows 10 | Python 3.8 | PyQt5 I got a class like class My_GUI(): def __init__(self): ..

How does a debugger identify a thread?

When using a debugger to debug a mutli-thread application, the debugger usually shows the currently running threads. Either with some GUI or command like info t

Understanding Wait in Thread Java

I have the following code:- class ThreadB extends Thread { int total; @Override public void run() { synchronized (this){ for(int i=

Can we invoke method outside the thread block by any technique in C#? so that we can use same thread method to invoke other methods as well.?

e.g. Here in this example, if I want to start thread on method M1 this way, Purpose is I need to call M2, M3 on same thread method to avoid repeated code. Is th

How to limit execution time of a function call?

There is a socket related function call in my code, that function is from another module thus out of my control, the problem is that it blocks for hours occasio