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тАО10-20-2008 06:00 AM
тАО10-20-2008 06:00 AM
Re: How to Enable 4 Extra CPU
I need only 4CPU enabled. Then how to disable remaining 4 CPU.
# ioscan -kfC processor
Class I H/W Path Driver S/W State H/W Type Description
===================================================================
processor 0 120 processor CLAIMED PROCESSOR Processor
processor 1 121 processor CLAIMED PROCESSOR Processor
processor 2 122 processor CLAIMED PROCESSOR Processor
processor 3 123 processor CLAIMED PROCESSOR Processor
processor 4 124 processor CLAIMED PROCESSOR Processor
processor 5 125 processor CLAIMED PROCESSOR Processor
processor 6 126 processor CLAIMED PROCESSOR Processor
processor 7 127 processor CLAIMED PROCESSOR Processor
Thanks,
Regards,
Shreenath
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тАО10-20-2008 06:10 AM
тАО10-20-2008 06:10 AM
Re: How to Enable 4 Extra CPU
Hope this helps!
Regards
Torsten.
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There are only 10 types of people in the world -
those who understand binary, and those who don't.
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тАО10-20-2008 06:25 AM
тАО10-20-2008 06:25 AM
Re: How to Enable 4 Extra CPU
EFI Shell ???? Do i need to ask this to IT team or I can do it remotely ( If i am having root password)
Can you please tell something more about how to use EFI shell
Thanks a lot your quick responce.
Regards,
Shreenath
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тАО10-20-2008 06:49 AM
тАО10-20-2008 06:49 AM
Re: How to Enable 4 Extra CPU
Why you want to disable the CPUs?
Hope this helps!
Regards
Torsten.
__________________________________________________
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those who understand binary, and those who don't.
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тАО10-20-2008 05:00 PM
тАО10-20-2008 05:00 PM
Re: How to Enable 4 Extra CPU
Getting to the EFI shell requires rebooting, and then, while at the console interrupting the boot at the EFI boot menu and selecting EFI. I suspect that there are one or more manuals on docs.hp.com that discuss EFI and/or the cpuconfig command therein so those are good search input fodder.
Depending on the specific nature of what you want to do, you might also consider shoving CPUs into psets, not assign any processes to the pset(s) and then making sure those psets don't take interrupts (man intctl). That would be one way you could essentially disable CPUs on a live system. HP-UX 11.31 also has the ability to enable/disable use of hyperthreads on a pset by pset basis...
So, *specifically* what do you want to do that has you wanting to disable CPUs?
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тАО10-20-2008 09:39 PM
тАО10-20-2008 09:39 PM
Re: How to Enable 4 Extra CPU
i am testing performance of the product on
2,4,8 CPU machine. Instad of having different machine for 2,4,8 CPU i thought of having one machine and use that by enable/disable the cpu
Regards,
Shreenath
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тАО10-21-2008 12:08 PM
тАО10-21-2008 12:08 PM
Re: How to Enable 4 Extra CPU
As you go, you may want to make use of the features of Caliper:
http://www.hp.com/go/caliper
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