Thank you very much!
Are these results you are mentioning publicly available?
Thanks in advance,
Victor
Amithash Prasad wrote:
Yes, per core CPU frequency scaling works on quad cores starting from
the Barcelona series including your chip which is a shanghai. And the
powernow_k8 driver works perfectly.
I have performed some tests confirming this including runtime tests
using synthetic benchmarks.
On Thu, Mar 26, 2009 at 8:27 AM, Victor Jimenez <victor.javier@xxxxxx
<mailto:victor.javier@xxxxxx>> wrote:
Hello,
we are considering to buy a system with an AMD Opteron 2384
processor. We want to conduct some experiments with dynamic
voltage frequency scaling (DVFS).
It seems the chips supports DVFS per core, so one core can be
running at frequency X and the other core can do it at frequency
Y. However, we are not sure how to access all the actuators to
change frequency/voltage.
Is cpufreq from Linux kernel supporting this? I could only find
support for K8 microarchitectures and a patch to read the
temperatures for K10 microarchitecture (e.g., Opteron 2384).
However, we are not sure whether is it possible to perform DVFS
for K10 microarchitecture using cpufreq.
Does anyone know anything about this? Any plans to support K10 in
cpufreq?
Thanks in advance,
Victor
--
Víctor Jiménez
Barcelona Supercomputing Center (BSC)
Edifici Nexus I - Despatx 105
Jordi Girona, 1-3, Campus Nord
08034 Barcelona (SPAIN)
Tlf. 93 401 72 95
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--
Amithash E. Prasad
ECE Department, CU
http://eces.colorado.edu/~prasadae <http://eces.colorado.edu/%7Eprasadae>
--
Víctor Jiménez
Barcelona Supercomputing Center (BSC)
Edifici Nexus I - Despatx 105
Jordi Girona, 1-3, Campus Nord
08034 Barcelona (SPAIN)
Tlf. 93 401 72 95
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