[Opensim-dev] PhysX Integration into OpenSim

[Michael Emory Cerquoni]

on a other note, if GPU support is the end goal for MOSES team, it should
be noted that Bullet also can do GPU support and even multi-threaded cpu
support, as it stands right now its only single thread for Bulletsim,
though it can be loaded into a separate thread removed from the simulator
heartbeat, it should also be noted that very little effort has gone into
fully optimizing what Bullet could potentially do in OpenSimulator.  I do
kind of wonder why the choice to not improve this effort instead of trying
to re-invent the wheel so to speak with yet another platform that
ultimately is not all that much better than Bullet in the end and
potentially not cross platform. I must admit my interest will be very
limited if I am required to use MIAB and likely would not do much testing
myself if that is the case, also I would have absolutely no interest at all
if it turns out to not have cross platform support though I am not sure
that is true.

On Wed, Mar 18, 2015 at 10:42 PM, Michael Emory Cerquoni <
nebadon2025 at gmail.com> wrote:

> GPU is not required for PhysX there is a cpu level it can operate at as
> well, and while GPu support is good, I would also be surprised if
> OpenSimulator could actually fully utilize a GPU before mono would barf
> anyway, mono can only handle so much threading and even offloading all of
> that processing to the GPU, all that data ultimately has to flow back
> through mono / C# / OpenSim HTTP server and I suspect there will be a huge
> bottleneck there that would not allow for much more performance than the
> CPU itself could handle anyway, there would likely be some improvement
> though, the question is does that warrant the inclusion of an expensive GPU
> in a server, its going to draw a lot more power, and will not make a lot of
> sense in a standard data center style setup with 1U rack servers, expanding
> rack size increases costs quite a lot, the question is does that increased
> cost benefit performance enough to justify it, the only way to really find
> out is to try, I wonder if InWorldz does any GPu offloading for their
> implementation of PhysX, i suspect they do not but would be great to know
> for sure.
>
> On Wed, Mar 18, 2015 at 5:15 PM, David Saunders <abitar.com at gmail.com>
> wrote:
>
>> I know there be allot of grid interested in trying out the new physics
>> when offer.
>>
>> THe only big drawback of people adopting the PhysX is that relies on a
>> GPU to do its processing and not sure if you run more then one engine on a
>> machine.
>>
>> I am sure smaller grids and self hosters would love it.
>>
>> But do correct me, I not looked into PhysX since  last year.
>>
>> On Wed, Mar 18, 2015 at 4:42 PM, Shaun T. Erickson <ste at smxy.org> wrote:
>>
>>>  It would be sad if this were ultimately for Windows only, as that
>>> would rule out its use by a large segment of the OpenSim community.
>>>
>>> -ste
>>>
>>> On 3/18/15 4:13 PM, Sean M wrote:
>>>
>>>  Mike,
>>>
>>>  Yes, PhysX.net is the targeted wrapper.
>>>
>>>  Cross compatibility would be nice to maintain but is not a required
>>> feature for this effort.
>>>
>>>  Best regards,
>>> Sean Mondesire, Ph.D.
>>> MOSES: Virtual World Research Team
>>>
>>>
>>>
>>> _______________________________________________
>>> Opensim-dev mailing list
>>> Opensim-dev at opensimulator.org
>>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev
>>>
>>>
>>
>> _______________________________________________
>> Opensim-dev mailing list
>> Opensim-dev at opensimulator.org
>> http://opensimulator.org/cgi-bin/mailman/listinfo/opensim-dev
>>
>>
>
>
> --
> Michael Emory Cerquoni
>



-- 
Michael Emory Cerquoni
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://opensimulator.org/pipermail/opensim-dev/attachments/20150318/cf8f2c8b/attachment-0001.html>