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Re: Itanium multithreading and HP-UX

 
Trojan36
Frequent Advisor

‎09-25-2008 06:58 AM

‎09-25-2008 06:58 AM

Itanium multithreading and HP-UX

Anyone know when does the H/W multithreading get turned on? I was told is not turned on until HPUX 11v3. Any documentations on this? Thx in advance.
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Torsten.
Acclaimed Contributor

‎09-25-2008 07:05 AM

‎09-25-2008 07:05 AM

Re: Itanium multithreading and HP-UX

It works only with 11.31 - not with earlier versions.

Turn it on or off using "setboot -m on|off":

# setboot
Primary bootpath : 0/0/1/1/0
HA Alternate bootpath : 2/0/1/1/0
Alternate bootpath :

Autoboot is ON (enabled)
Hyperthreading : OFF
: OFF (next boot)



Hope this helps!
Regards
Torsten.

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Don Morris_1
Honored Contributor

‎09-25-2008 07:12 AM

‎09-25-2008 07:12 AM

Re: Itanium multithreading and HP-UX

v3 White paper on the topic:

http://h71028.www7.hp.com/ERC/downloads/4AA0-7695ENW.pdf?jumpid=reg_R1002_USEN

(Note the Appendix A section specifically mentioning that HT enablement is not supported on v2).

In the release notes:
http://docs.hp.com/en/5991-6469/ch05s15.html?jumpid=reg_R1002_USEN

vPars Guide:
http://docs.hp.com/en/T1335-90098/ch06s25.html?jumpid=reg_R1002_USEN
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