topic Re: bind a process to a processor in Operating System - HP-UX

bind a process to a processor

Charles McCary — Thu, 15 Nov 2001 21:47:38 GMT

Group,

quick question - Sun has a command called "pbind" that allows a sysadmin to bind a process to a particular processor. Does anyone know of a similar command in HP?

tx,

C

Re: bind a process to a processor

Christopher Caldwell — Thu, 15 Nov 2001 21:50:00 GMT

Buy PRM (process resource manager) :-(

Re: bind a process to a processor

Patrick Wallek — Thu, 15 Nov 2001 21:50:03 GMT

No such command that I know of.

The closest thing I can think of is an add-on product to HP-UX (costs $$$) called Process Resource Manager. I'm not sure that this product will do what you require, though. Not sure it's possible in HP-UX.

Re: bind a process to a processor

A. Clay Stephenson — Thu, 15 Nov 2001 21:50:30 GMT

HP Offers a product called PRM (Process Resource Management) that will do that and more.

Re: bind a process to a processor

Charles McCary — Thu, 15 Nov 2001 21:51:58 GMT

Any guestimate on cost?

Re: bind a process to a processor

Patrick Wallek — Thu, 15 Nov 2001 21:52:36 GMT

PRM for HP-UX 10.20: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/displayProductInfo.pl?productNumber=B3835CA

PRM for HP-UX 11.X: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/displayProductInfo.pl?productNumber=B3835DA

Re: bind a process to a processor

harry d brown jr — Thu, 15 Nov 2001 21:56:52 GMT

mpsched controls the processor (spu), or locality domain (locality-domain-id) on which a process executes. It can do this by binding a process to a particular processor or locality domain, or by setting the launch policy for the process.

from the man pages of mpsched

live free or die
harry

Re: bind a process to a processor

harry d brown jr — Thu, 15 Nov 2001 22:01:10 GMT

If you are running 10.20, there is also a way to peg a process to a cpu via a kernel hack, and unfortunately I don't remember how. Anyone have a kernel tuning manual?

live free or die
harry

Re: bind a process to a processor

Santosh Nair_1 — Thu, 15 Nov 2001 22:04:03 GMT

HPUX has something called processor affinity. Its a method used on SMP systems to lock a process to a particular CPU. Look at the mpctl(2) system call.

Hope this helps.

-Santosh

Re: bind a process to a processor

Deshpande Prashant — Thu, 15 Nov 2001 22:09:22 GMT

HI
The system call "mpctl" can be used to assign a process to a cpu. Check "man mpctl"
Other way will be to use th HP PRM software.

Thanks.
Prashant.

Re: bind a process to a processor

Roger Baptiste — Fri, 16 Nov 2001 00:23:14 GMT

Charles,

I don't think PRM actually binds a process to a processor. It rather sets limits on the amount of CPU given to a process.

Regarding binding a process, i am not sure whether it worth the trouble, unless you are doing it at the application/programming level using multi-threading.

There is a hp doc which you can refer:
Doc id - UNX1030249

HTH
raj