[Beowulf] Turboboost/IDA on Nehalem

Hearns, John john.hearns at mclaren.com
Fri Jun 18 07:30:12 EDT 2010

Does anyone know much about Turboboost on Nehalem?
I would like to have some indication that this is working, and perhaps
measure what effect it has.
I have enabled Turboboost in the BIOS, however when I modprobe
acpi_cpufreq I get

FATAL: Error inserting acpi_cpufreq
cpi-cpufreq.ko): No such device

Dave Jones' blog suggest this is a BIOS issue. Any ideas?
I have tried BIOS flags for hardware and software control of CPU

The contents of this email are confidential and for the exclusive use of the intended recipient.  If you receive this email in error you should not copy it, retransmit it, use it or disclose its contents but should return it to the sender immediately and delete your copy.

Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

More information about the Beowulf mailing list