Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Is it possible to combine multiple CPU to act as a single CPU on the same server? Post 302892203 by vbe on Tuesday 11th of March 2014 12:26:09 PM
Old 03-11-2014
OK your application doesnt know how to take advantage of multi-threading, but that should not be an issue on a multi-core... Even One thread appl. can make usage of more than 1 cpu... not that you will have 2 cpu dedicated, but your application may pass from one to another depending of the load and so should gain on context switching...
So I believe its more a question of tuning... but for that youwould have to know what you application is doing and where it is stuck...
 

10 More Discussions You Might Find Interesting

1. Solaris

How to down a particular CPU in a server, witch is having 16 CPU's

Hi.., my dout is a solaris server is having 16 cpu's. in tht one cpu running some error process, accupaying more space. I wanna down tht particular CPU only with out interrupting the other 15 CPU's. how can i do this. is there any command for this ?? (5 Replies)
Discussion started by: b.janardhanguru
5 Replies

2. UNIX for Dummies Questions & Answers

how to get persistant cpu utilization values per process per cpu in linux (! top,ps)

hi, i want to know cpu utilizatiion per process per cpu..for single processor also if multicore in linux ..to use these values in shell script to kill processes exceeding cpu utilization.ps (pcpu) command does not give exact values..top does not give persistant values..psstat,vmstat..does njot... (3 Replies)
Discussion started by: pankajd
3 Replies

3. Solaris

Multi CPU Solaris system shows 100% CPU usage.

Hello Friends, On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization. ========================================================================= $ prstat -a ... (4 Replies)
Discussion started by: mahive
4 Replies

4. Solaris

cpu-shares vs cpu-cap in solaris

Can anyone tell me difference between cpu-shares vs cpu-cap in solaris & how FSS will work with cpu-caps ? (9 Replies)
Discussion started by: fugitive
9 Replies

5. Solaris

Running Sun Fire V480R on a single cpu-Urgent

I have a sun fire v480r server. it has 2 cpu. One of cpu have become faulty. Now i want to run server on a single cpu. My service provider says it cant be done, you have to replace the motherboard. Can it be done? If so do some settings need to be changed in solaris. I have search for documentation... (6 Replies)
Discussion started by: krabu
6 Replies

6. Shell Programming and Scripting

Is there a way to make bash [or another shell] use all CPU cores to execute a single script?

I wrote a very simple script that matches combinations of alphabetic characters (1-5). I want to use it to test CPU speeds of different hardware/platforms. The problem is that on multi-core/processor systems, only one CPU is being utilized to execute the script. Is there a way to change that?... (16 Replies)
Discussion started by: ph0enix
16 Replies

7. Solaris

Difference between CPU CHIP and CPU ID

Hi All, What is the difference between CPU CHIP and CUP ID on SUN/ Oracle M5000 servers.. Thanks in advance (3 Replies)
Discussion started by: kumarmani
3 Replies

8. Red Hat

Java process demoted to single CPU

please help on this issue. I take care of a production enterprise application , it is a java process quite complex that is a middleware application. The process runs 24 hours a day. Usage cpu is 60% as mean value all day. The process have some burst of cpu usage at 100% usage in the afternoon.... (0 Replies)
Discussion started by: berborfi
0 Replies

9. AIX

Entitled CPU lesser Than Used CPU !!

Hi All, It may be a n00b question, but i really want to know , How Entitled Capacity is less and Used CPU is more when there is no Free CPU is available in the managed system. I have 5LPARs in a MS with Dual VIO. Managed System CPU details Available: 0.20 Assigned to partitions: 15.80... (11 Replies)
Discussion started by: Thala
11 Replies

10. UNIX for Beginners Questions & Answers

Why Entitlement CPU can't be set to same as Virtual CPU?

I read that Entitlement CPU should be set to max 75% compare to Virtual CPU. May I know the reason. I have set the Entitlement CPU = Virtual CPU on AIX . It works fine . Can you help to understand. (1 Reply)
Discussion started by: gabhanes
1 Replies
libmlib_mt(3LIB)														  libmlib_mt(3LIB)

NAME
libmlib_mt - multi-threaded mediaLib SYNOPSIS
cc [ flag... ] file... -lmlib_mt -lmlib [ library... ] #include <mlib.h> Interfaces in this library provide functions for multimedia processing. Multi-threaded (MT) mediaLib is a software layer developed on top of mediaLib using OpenMP. When it is used with a large data set on a multi-processor system, MT mediaLib will partition data into subsets and process the subsets in parallel, thus greatly improving performance of applications that use mediaLib. INTERFACES
The shared object libmlib_mt.so.2 provides the same public interfaces as those defined in libmlib(3lib). See intro(3) for additional infor- mation on shared object interfaces. There are two ways to use MT mediaLib. 1. Pre-load a multi-threaded mediaLib library during runtime by setting the LD_PRELOAD environment variable as follows before starting your application, in Bourne/Korn shell: LD_PRELOAD=libmlib_mt.so export LD_PRELOAD or in C shell: setenv LD_PRELOAD libmlib_mt.so In this way, you can take advantage of MT mediaLib without rebuilding your application. 2. Link your application with a multi-threaded mediaLib library directly as shown under . In this way, an MT mediaLib library is always used whenever your application is started. The parallelization of MT mediaLib is controlled, in part, by the PARALLEL environment variable. You can change its setting to adjust the degree of parallelization before starting your application, in Bourne/Korn shell: PARALLEL=n export PARALLEL or in C shell: setenv PARALLEL n where n is a positive integer for number of threads. Note that other factors also affect the degree of parallelization in MT mediaLib. /usr/lib/libmlib_mt.so.2 shared object /usr/lib/64/libmlib_mt.so.2 64-bit shared object See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWmlibt | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ Intro(3), libmlib(3lib), attributes(5) 30 Sep 2005 libmlib_mt(3LIB)
All times are GMT -4. The time now is 06:15 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy