[concurrency-interest] Some interesting (confusing?) benchmark results
viktor.klang at gmail.com
Wed Feb 13 09:21:08 EST 2013
What's even more interesting is the the available processors can change at
runtime, making it extremely hard to do anything interesting with the info.
On Wed, Feb 13, 2013 at 2:47 PM, Holger Hoffstätte <
holger.hoffstaette at googlemail.com> wrote:
> On Wed, Feb 13, 2013 at 9:33 AM, √iktor Ҡlang <viktor.klang at gmail.com>
> > Is there a way to know how many physical processors are available on the
> > JVM?
> Not really, and why this is almost impossible to implement in a
> simplistic way can be readily seen when you look what
> http://www.open-mpi.org/projects/hwloc/ does. Add NUMA and other
> heterogenous HW (GPGPUs, weaker cores etc.) to the mix and "the number"
> rapidly ceases to have any meaning.
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