Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: bash commands to change processor
Top Forums Shell Programming and Scripting bash commands to change processor Post 302685035 by stevensw on Friday 10th of August 2012 02:34:07 PM
Old 08-10-2012
bash commands to change processor
Say you got a for loop where each execution has 0 dependence on the other. Thus ideally you'd like to executed them all concurrently rather than iteratively (if you had enough CPUs). We don't quite have that many CPUs but I would like to instead partition the iterations between them.

Or maybe even partition between CPU cores.

How to do either using bash commands? Thanks
 

10 More Discussions You Might Find Interesting

1. Linux

Commands for OS patch, processor and disk partition

Hi All, Can anybody please help me with finding commands on LINUX for the following: processor: Availability PowerManagementSupported Description also for OS patch i need to know the following info: SeverityRating ServicePackInEffect for disk partition: Description BlockSize ... (1 Reply)
Discussion started by: Veenak15
1 Replies

2. AIX

LPAR processor/virtual processor settings

Question is on setting of Physical and Virtual processors for LPARs to make proper use of virtualization capabilities. Environment is a 8-way p570 with 4 LPARs. lparVIO1 and lparVIO2: AIX 5300-04-01 Mode/Type= Shared-SMT/Capped Minimum Processors= 0.10 Desired Processors= 0.50 Maximum... (1 Reply)
Discussion started by: guttew
1 Replies

3. Shell Programming and Scripting

running commands from outside of bash

Hello all! I have two consoles.I know the PID of these two.Now I want to execute a command in console#1 but from console#2. How can I achieve this? Anyone can do something for my query? Click here if you can't understand my query or to know the need for this query. (3 Replies)
Discussion started by: rakabarp
3 Replies

4. Shell Programming and Scripting

Can BASH execute commands on a remote server when the commands are embedded in shell

I want to log into a remote server transfer over a new config and then backup the existing config, replace with the new config. I am not sure if I can do this with BASH scripting. I have set up password less login by adding my public key to authorized_keys file, it works. I am a little... (1 Reply)
Discussion started by: bash_in_my_head
1 Replies

5. Shell Programming and Scripting

Bash scripts as commands

Hello, the bulk of my work is run by scripts. An example is as such: #!/bin/bash awk '{print first line}' Input.in > Intermediate.ter awk '{print second line}' Input.in > Intermediate_2.ter command Intermediate.ter Intermediate_2.ter > Output.out It works the way I want it to, but it's not... (1 Reply)
Discussion started by: Leo_Boon
1 Replies

6. AIX

Change processor compatibility mode without hmc

Hello, One of my colleagues is working on a p730 without HMC, only one LPAR has all resources. The server is showing some issues with Informix (10.00 & 11.50), the same config (OS & IFX) works perfectly on Power6 so I would like to ask him to change the processor compatibility mode to power6 on... (3 Replies)
Discussion started by: fapl
3 Replies

7. Shell Programming and Scripting

Regarding change in column numbers after some commands

Hi All, I was using some commands to: replace a column by a constant string character awk -v a=CA 'NF>1{ $3=a; print; } ' $line>$line"_1" to copy a column and paste it in another place awk '$5=$2" "$5' $line>$line"_2" to delete the extra columns awk '{for(i=1;i<=NF;i++)... (9 Replies)
Discussion started by: CAch
9 Replies

8. Shell Programming and Scripting

How to run several bash commands put in bash command line?

How to run several bash commands put in bash command line without needing and requiring a script file. Because I'm actually a windows guy and new here so for illustration is sort of : $ bash "echo ${PATH} & echo have a nice day!" will do output, for example:... (4 Replies)
Discussion started by: abdulbadii
4 Replies

9. Shell Programming and Scripting

Using commands within bash script

The purpose of enclosed script is to execute selected command and output success or failure in whiptail msgBox Works as expected when command returns zero to msgBox. I cannot figure out how to continue / automate my script when command expects reply to continue / terminate. I am doing it... (2 Replies)
Discussion started by: annacreek
2 Replies

10. Solaris

How to change pset.size value in processor set in Solaris zone?

Hi I have a pool name yuk-pool and its associated pset is yuk-pset. It has a min value is 20 and max value is 56. But size field has 48 value . This same pool is assign to 4 local zones. Whenever Cpu usage is high on one local zone it impact the cpu usage at other local zone as well during high... (1 Reply)
Discussion started by: sb200
1 Replies

LEARN ABOUT FREEBSD

chcpu

CHCPU(8)						       System Administration							  CHCPU(8)

NAME

       chcpu - configure CPUs

SYNOPSIS

       chcpu -c|-d|-e|-g cpu-list
       chcpu -p mode
       chcpu -r|-h|-V

DESCRIPTION

       chcpu  can  modify  the state of CPUs.  It can enable or disable CPUs, scan for new CPUs, change the CPU dispatching mode of the underlying
       hypervisor, and request CPUs from the hypervisor (configure) or return CPUs to the hypervisor (deconfigure).

       Some options have a cpu-list argument.  Use this argument to specify a comma-separated list of CPUs.  The list can contain  individual  CPU
       addresses  or ranges of addresses.  For example, 0,5,7,9-11 makes the command applicable to the CPUs with the addresses 0, 5, 7, 9, 10, and
       11.

OPTIONS

       -c, --configure cpu-list
	      Configure the specified CPUs.  Configuring a CPU means that the hypervisor takes a CPU from the CPU pool and assigns it to the  vir-
	      tual hardware on which your kernel runs.

       -d, --disable cpu-list
	      Disable the specified CPUs.  Disabling a CPU means that the kernel sets it offline.

       -e, --enable cpu-list
	      Enable the specified CPUs.  Enabling a CPU means that the kernel sets it online.	A CPU must be configured, see -c, before it can be
	      enabled.

       -g, --deconfigure cpu-list
	      Deconfigure the specified CPUs.  Deconfiguring a CPU means that the hypervisor removes the CPU from the virtual  hardware  on  which
	      the Linux instance runs and returns it to the CPU pool.  A CPU must be offline, see -d, before it can be deconfigured.

       -p, --dispatch mode
	      Set  the	CPU  dispatching mode (polarization).  This option has an effect only if your hardware architecture and hypervisor support
	      CPU polarization.  Available modes are:

		     horizontal  The workload is spread across all available CPUs.
		     vertical	 The workload is concentrated on few CPUs.

       -r, --rescan
	      Trigger a rescan of CPUs.  After a rescan, the Linux kernel recognizes the new CPUs.  Use this option on systems that do	not  auto-
	      matically detect newly attached CPUs.

       -V, --version
	      Display version information and exit.

       -h, --help
	      Display help text and exit.

RETURN CODES

       chcpu has the following return codes:

       0      success

       1      failure

       64     partial success

AUTHOR

       Heiko Carstens <heiko.carstens@de.ibm.com>

COPYRIGHT

       Copyright IBM Corp. 2011

SEE ALSO

       lscpu(1)

AVAILABILITY

       The  chcpu  command  is	part  of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
       /util-linux/>.

util-linux							     July 2014								  CHCPU(8)
All times are GMT -4. The time now is 08:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy