consider if the thread routine returns any void pointer while calling pthread_join,
the thread resources are freed and the thread will be terminated when the main thread is exit ,that is my assumption whether it is true
how do we find whether the thread is alive or terminated
how do we find... (0 Replies)
Hi all!
I am working on unix systems.I am programming in c.
I have got some problems with pthread.when I use pthread_create to creat a thread it says:
(.text+0x3a): undefined reference to `pthread_create'.
same is the problm with pthread_kill.
Can anyone help me out here.
Thanks.
vij. (2 Replies)
Hello all,
I'm working on a small wrapper library for a bigger project, and i've been killing my self over (what I think is) a pointer problem.
Here is the code (I extracted the part of the code where the problem is for better reading, I tested the code below, and I get the same problem):... (13 Replies)
Hello all.
I have made an application in C using pthreads. My problem is that my program seems to be only using 1 of my cores when I create multiple threads. I have 4 cores (Q9300). I am using Ubuntu 8.04.
I do believe the problem is that on linkage it's using a pthread emulation package... (4 Replies)
Hello,
I run my pthread code on Linux with 4 processors. However, the speed up is only 2 times.
The code is about solving equation (G+s(i)C)z(i)=B*us(i), i=1,...,n. Here G,C are m*m matrix, B*us(i) is a m*1 vector and s(i) are n different numbers. I need to solve the equation n times to... (2 Replies)
Hi all,
How can i parallize this code in pthread?
for(round=1;round<=16;round++)
{
Expansion(mid, 17 - round - 1, left);
Expansion(mid, round - 1, right);
round++;
Expansion(right, 17 - round - 1, mid);
Expansion(left, round - 1,mid);
}
Whereby each loop depend on the... (2 Replies)
I am so confused about the user threads and kernel threads.Suppose I created a thread using pthread create call in Linux ,whether it will be a user thread or kernel thread.If it user thread,then how its map to kernel thread.
I heard about the M:1,M:N,1:1 mapping methods.Which method linux is... (1 Reply)
I have a while loop like so:
while (counter (file1));
how can I pass that into a pthread_create()?
I was thinking ...
while(pthread_create(&path, NULL, counter, file));
is that right? (1 Reply)
Discussion started by: l flipboi l
1 Replies
LEARN ABOUT CENTOS
pthread_setname_np
PTHREAD_SETNAME_NP(3) Linux Programmer's Manual PTHREAD_SETNAME_NP(3)NAME
pthread_setname_np, pthread_getname_np - set/get the name of a thread
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <pthread.h>
int pthread_setname_np(pthread_t thread, const char *name);
int pthread_getname_np(pthread_t thread,
const char *name, size_t len);
Compile and link with -pthread.
DESCRIPTION
By default, all the threads created using pthread_create() inherit the program name. The pthread_setname_np() function can be used to set
a unique name for a thread, which can be useful for debugging multithreaded applications. The thread name is a meaningful C language
string, whose length is restricted to 16 characters, including the terminating null byte ('