multithreading

Why Tensorflow creates so many CPU threads

爱⌒轻易说出口 提交于 2021-02-10 18:06:42
问题 Even with inter_op_parallelism_threads = 1 intra_op_parallelism_threads = 1 values set, TensorFlow 1.5 process is not single-threaded. Why? Is there a way to completely disable unexpected thread spawning? 回答1: First of all, TensorFlow is a multi-level software stack, and each layer tries to be smart and introduces some worker threads of its own: One thread is created by Python runtime Two more threads are created by NVIDIA CUDA runtime Next, there are threads originating from the way how

Python Logger Message Displayed on Separate Line

二次信任 提交于 2021-02-10 16:25:24
问题 I'm having a bit of trouble formatting my logger output in a Python application I'm working on. Currently, I'm creating my logger in a standalone file and storing it in a class variable like so... import logging class Logging(): FORMAT = '[%(levelname)s]: %(asctime)-15s' logging.basicConfig(format=FORMAT) logger = logging.getLogger('Mariner') ch = logging.StreamHandler() logger.addHandler(ch) logger.setLevel(logging.INFO) For all of my classes that need logging functionality, I simply import

C# Form of a form is on separate thread

China☆狼群 提交于 2021-02-10 15:51:55
问题 I have strange problem. I have 3 forms. form1, form2, form3. form1 is starting/main form. in form1 I have code: form2 f2 = new form2; f2.ShowDialog(); form2 opens, I can't focus on foorm1, they are both on the same thread. Just what I want. On form2 I have code: form3 f3 = new form3; DialogResult result = f3.ShowDialog(); I run this code and... For some, unknown for me reason this form3 runs on new thread and I can focus on form2. I don't want this to happen. I have no idea why this form3

Make a function thread safe

邮差的信 提交于 2021-02-10 15:51:18
问题 I'm trying to understand why some functions fail with threading in python. For example, I'm trying to use VideoCapture to grab an image from a webcam. This example works fine: from VideoCapture import Device cam = Device() cam.saveSnapshot('image.jpg') But when I put it on a thread I get an error. import threading from VideoCapture import Device def grab(): cam = Device() cam.saveSnapshot('image.jpg') thr = threading.Thread(target=grab) thr.start() thr.join() File "C:\Program Files\Python36

Why my parallel code using openMP atomic takes a longer time than serial code?

时光毁灭记忆、已成空白 提交于 2021-02-10 15:51:01
问题 The snippet of my serial code is shown below. Program main use omp_lib Implicit None Integer :: i, my_id Real(8) :: t0, t1, t2, t3, a = 0.0d0 !$ t0 = omp_get_wtime() Call CPU_time(t2) ! ------------------------------------------ ! Do i = 1, 100000000 a = a + Real(i) End Do ! ------------------------------------------ ! Call CPU_time(t3) !$ t1 = omp_get_wtime() ! ------------------------------------------ ! Write (*,*) "a = ", a Write (*,*) "The wall time is ", t1-t0, "s" Write (*,*) "The CPU

C# Form of a form is on separate thread

可紊 提交于 2021-02-10 15:50:43
问题 I have strange problem. I have 3 forms. form1, form2, form3. form1 is starting/main form. in form1 I have code: form2 f2 = new form2; f2.ShowDialog(); form2 opens, I can't focus on foorm1, they are both on the same thread. Just what I want. On form2 I have code: form3 f3 = new form3; DialogResult result = f3.ShowDialog(); I run this code and... For some, unknown for me reason this form3 runs on new thread and I can focus on form2. I don't want this to happen. I have no idea why this form3

Threads producer consumer in java

给你一囗甜甜゛ 提交于 2021-02-10 15:46:48
问题 Below is the consumer producer problem code, but the code is not working as expected. Here the consumer and producer are supposed to be just producing and consuming one object. public class ProducerConsumer { private static LinkedList<Integer> linkedList = new LinkedList<>(); public static void main(String a[]) throws InterruptedException { Thread producer = new Thread(new Runnable() { @Override public void run() { synchronized(this) { while (linkedList.size() == 1) { try { wait(); } catch

Problem with backticks in multi-threaded Perl script on Windows

依然范特西╮ 提交于 2021-02-10 15:20:33
问题 I have a trouble with the following very simple and small Perl script on Windows platform. use strict; use warnings; use threads; use threads::shared; my $print_mut : shared; my $run_mut : shared; my $counter : shared; $counter = 30; ############################################################### sub _print($) { lock($print_mut); my $str = shift; my $id = threads->tid(); print "[Thread_$id] $str"; return; } ############################################################### sub _get_number() {

Need sample code explaning Workmanager in Tomcat

元气小坏坏 提交于 2021-02-10 15:16:51
问题 I want to know how to use WorkManager in Tomcat 7. I came across the open source library Foo-CommonJ but nowhere i found a sample code explaning the usage. The input parameter for FooWorkManager's constructor is an instance of commonj.work.work class, where as no one provides the commonj.work.work class (neither tomcat nor foo-commonj). Basically i need a sample code explaining usage of WorkManager (FooCommonj jar) in tomcat. And if Foo-Commonj doesn't support workmanager properly, then some

Need sample code explaning Workmanager in Tomcat

我与影子孤独终老i 提交于 2021-02-10 15:16:49
问题 I want to know how to use WorkManager in Tomcat 7. I came across the open source library Foo-CommonJ but nowhere i found a sample code explaning the usage. The input parameter for FooWorkManager's constructor is an instance of commonj.work.work class, where as no one provides the commonj.work.work class (neither tomcat nor foo-commonj). Basically i need a sample code explaining usage of WorkManager (FooCommonj jar) in tomcat. And if Foo-Commonj doesn't support workmanager properly, then some