[parsec-users] Fwd: Swaptions communication

kishore kumar kishoreguptaos at gmail.com
Wed Oct 30 20:09:28 EDT 2013


Hi Siddharth,

How do you find that there is a communication between threads? Which data?

Best,
Kishore Kumar Pusukuri
http://www.cs.ucr.edu/~kishore


On Wed, Oct 30, 2013 at 4:56 PM, Siddharth Nilakantan <sid.nil at gmail.com>wrote:

> Hi All,
>
> I've been running some multi-core simulations with Swaptions and I've
> noticed that there is thread communication. From looking at the source code
> for swaptions, there should be no communication, as all threads work on
> independent data. Hence, the lack of synchronization primitives as well.
>
> I ran simmedium (32 swaptions), 16 threads and 8 cores. It should divide
> up evenly and there should be no communication at all. These guys also find
> that swaptions has communication:
> http://parsec.cs.princeton.edu/publications/barrow-williams09comm.pdf
>
> Can anyone explain to me why Swaptions exhibits communication?
>
> Regards,
> Siddharth Nilakantan
>
>
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