9 More Discussions You Might Find Interesting
1. Programming
hi,
I have two basic questions, I will be really grateful if I receive any
comment from you,
I have an MPI code where I am trying to implement OpenMP directives.
The machine where I run the code has 16 cores. I run the code with
export OMP_NUM_THREADS=2
mpirun -np 4 ./exec
If I... (0 Replies)
Discussion started by: armando_2011
0 Replies
2. Programming
I am using a large code-base that compiled successfully before using make with a makefile and cmake. However, now that I'm trying to use openmp with it, I'm now getting the errors
undefined reference to `omp_get_thread_num'
undefined reference to `omp_get_num_threads'I don't think this... (0 Replies)
Discussion started by: larry burns
0 Replies
3. Programming
Dear Linux users,
I'm a noob at openmp, gcc and c programming. I can run my own openmp code in terminal with no problem, eg. gcc -fopenmp program.c -o program.
But now I'm trying to compile and run another person's code, it contains a makefile and multiple .c and .h files. I don't know how to... (2 Replies)
Discussion started by: pigeon151
2 Replies
4. HP-UX
Hi folks,
I am trying to run more than 8 threads in OpenMP team on my HP-UX 11i v3 system (without root access), but NO success.
Compiler: aCC A.06.26
I tried to setup: OMP_NUM_THREADS, omp_set_num_threads(), max_thread_proc=1000, nkthread=8416, set_dynamic=0
Machine has 2 processors... (1 Reply)
Discussion started by: ATveretinov
1 Replies
5. UNIX for Advanced & Expert Users
I wonder if someone knows what is the rationale behind linking function calls of the POSIX threads library at link-time vs. run-time.
For example, if I create the following program:
#include <pthread.h>
void noop() {
return;
}
int main() {
pthread_self();
pthread_atfork(noop,... (1 Reply)
Discussion started by: jsimsa
1 Replies
6. Programming
Hi,
I am new to posix threads. The no of threads to be created depends on the runtime. If I get the number of threads,
I need to forward declare
pthread_t mythread;
how to do that can I use pointers and use malloc()??
I also have another question. The pthread_join is used to make... (0 Replies)
Discussion started by: brett01
0 Replies
7. UNIX for Advanced & Expert Users
Hi,
consider the code below:
#include <stdio.h>
.
.
struct myStruct
{
char *message ;
int id;
};
.
.
.
void *thread_function( void *ptr );
nt main()
{
pthread_t thread1, thread2 ,thread3 ;
struct myStruct nico1; (2 Replies)
Discussion started by: Behnaz
2 Replies
8. Programming
I created multiple POSIX threads (on readhat Linux) in a C program in my app. What I am doing is - I am creating threads equal to the number of CPUs in the system and and equal number of instances of a certain data structure, basically a queue implementation. I am assigning one ID to the thread... (2 Replies)
Discussion started by: radiatejava
2 Replies
9. Programming
Hello !
Let's supose I have a main function in C , and two POSIX threads. I give you an example down :
int main() {
int something;
char else;
void *FirstThread();
void *SecondThread();
..
<start those two pthreads ..>
return 0;}
void *FirstThread() { ... }
void *SecondThread()... (2 Replies)
Discussion started by: !_30
2 Replies