UNIX/Linux Programming - March 2019

How to extract a .7z file within C++?
What library need I use? I searched me through the net, but I couldn't find out which dev-package I ...
[1 reply] : Took me all of 30 microseconds to find links: https://duckduckgo.com/... (by Furry Guy)
by zak100
Paralelizing Matrix Multiplication
Hi, I am trying to parallelize the different loops of matrix multiplication program using OMP but I...
[1 reply] : Hi, I tried with a small 3 * 3 matrix, its working fine meaning that s... (by zak100)
optimize large nested for loops
I have a very large nested for loops, which is too much time to complete. ofstream file{"archive1....
[1 reply] : > which is too much time to complete. How much time is "too much"? H... (by salem c)
by zak100
Segmentation fault in omp program
Hi, I am trying to compile the following omp program but its generating segmentation fault. ...
[2 replies] Last: Hi, Thanks. I reduced the size of N and it removed the error. God bles... (by zak100)
Computer specs that recommend for linux
It really depends on what you want to do and what software you want to run.
[1 reply] : In response to an original. Mar 23, 2019 at 8:28am UTC by Vindieselwa... (by salem c)
by zak100
Cannot Understand the Output of OMP Program
Hi, I ran an OMP program: #include <stdio.h> #include <omp.h> /* gcc -fopenmp prg1.c */ vo...
[3 replies] Last: > God bless you. Which one? https://simple.wikipedia.org/wiki/List_of_... (by salem c)
by zak100
How to speedup performance of Guassian Elimination Program using Threads
Hi, I am trying to run Guass Elimination program using 8, 4, 2, 1 threads but I am not getting good...
[7 replies] Last: Forget about all that malloc and gaussEP error ridden code you crufted... (by salem c)
by zak100
How to compile OMP program in C-Linux
Hi, I have written the following omp program in C language. I am getting some errors on compilation ...
[3 replies] Last: Hi, I solved this problem: gcc -fopenmp prg1.c Zulfi. (by zak100)
by zak100
Timing code Printing Zero Values
Hi, I am trying to calculate the time for execution of my application. I think its giving me correc...
[3 replies] Last: The arguments are passed on the run command in gdb, not the command li... (by salem c)
by zak100
How to find out the number of cores or processors available in C
Hi, I got a following program to return the number of cores: #include <stdio.h> #include <libc...
[1 reply] : Why don't you tell us what the error is? We can't control your comput... (by Ganado)
need help xmlrpc-c libraries newbie
Hi Guys, i am returning to C++ after a long time ~2003 and i am having difficulties configuring ecl...
[1 reply] : i fixed it needed to put them in order xmlrpc_utils++ xmlrpc_client++... (by aliaj00)
by zak100
Why always getting same minimum value?
Hi, I am trying to find minimum value using threads. I am using rand() function but I am always get...
[2 replies] Last: Thanks for helping me. Zulfi. (by zak100)
Ubuntu installation issues on MSI GF63 8RD
Hi to everyone! I'm trying to install Ubuntu 16.04 or 18.04 on my new laptop. I've made everything...
[1 reply] : You'd be much better off asking here -> https://ubuntuforums.org/ This... (by salem c)
by ujwala
Hi All, I am using DB2. I want to know if there is any way/api to get the query string from SQLHSTM...
[1 reply] : Double posted -> http://www.cplusplus.com/forum/general/251063/ (by salem c)
Library Files
I just got the book "Programming Non-Graphical Games in C++" by Vic Broquard. The first chapter has ...
[1 reply] : Did you even bother to do an internet search? Using DuckDuckGo and se... (by closed account E0p9LyTq)
by Setat
Running benchmarks in a C++ based NoC simulator.
Hi, Could anybody help me about running real workloads in Noxim simulator (It's a Network-on-chip...
[2 replies] Last: yes, I have run Noxim simulator with synthetic traffic patterns (e.g.... (by Setat)
by maryt
multiple kills system calls into a proc
The father forks as many children as the parameter given from the command line.The children after bi...
[1 reply] : http://man7.org/linux/man-pages/man2/signal.2.html A few things to not... (by salem c)
by zak100
How to Know Which Thread Is Executing A Specific Print Statement
Hi, I have created two threads and I am also using conditional variables. I want to know which th...
[2 replies] Last: Hi Thanks salem. Your solution worked. I have to use %lu format. pri... (by zak100)
by zak100
pthread mutex not working
Hi, I have created a C programusing pthread. #include <stdio.h> #include <stdlib.h> #include <un...
[3 replies] Last: Hi your code is not correct which is define below: pthread_create(&th... (by shivkumar12)
memory mapped data not comming correctly
I have written a code where i am writing a map in a binary file and than reading it using boost memo...
[6 replies] Last: It sounds like you're streaming the data. Would a pipe be more appropr... (by dhayden)
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