[Opensim-dev] object memory footprint for ODE

Ryan McDougall sempuki1 at gmail.com
Mon Nov 3 07:19:05 UTC 2008


Servers can never have video cards?

On Fri, Oct 31, 2008 at 5:16 PM, Nebadon Izumi <nebadon2025 at gmail.com> wrote:
> just clarification i made error below and said our "stats" are server side,
> it should read our physics are server side.
>
> sorry about confusion there.
>
> On Fri, Oct 31, 2008 at 8:14 AM, Nebadon Izumi <nebadon2025 at gmail.com>
> wrote:
>>
>> its not that simple, it depends on the complexity of your meshing, what
>> shapes you chose etc.. a box wont use the same amount of memory as a torus
>> thats cut twisted and hollowed out.   Also sculpty prims tend to use a bit
>> more memory than standard prims,  its almost impossible to predict what
>> memory it will use at this point, but chances are with 1gb ram you will be
>> able to run 1 sim with 15k prims. all depends, if your running linux likely
>> 1gb is not even enough ram to run 1 full 15k prim sim.. on the other hand in
>> windows you could likely run 1 sim with 15k prims and have some memory to
>> spare.. there are just to many variables in the equation though to predict
>> accuratly.   and again, our stats are server side, cuda wont do you any
>> good, its likely opensim will never be able to use video card accelerated
>> physics, its just not possible short of re-writting the linden viewer from
>> scratch and redoing opensim 100% also.
>>
>> Neb
>>
>> On Fri, Oct 31, 2008 at 8:09 AM, Eugen Leitl <eugen at leitl.org> wrote:
>>>
>>> On Fri, Oct 31, 2008 at 08:02:03AM -0700, Nebadon Izumi wrote:
>>> >
>>> >    physics are done server side on opensim and do not ever use video
>>> > card
>>>
>>> To clarify, I'm looking at hacking ODE to support CUDA acceleration.
>>>
>>> >    memory, so the answer to the video card memory is it use 0mb of ram.
>>> >    OpenSIM and Secondlife all use server side phyiscs.
>>>
>>> Assume 1 GByte available for ODE. How high scene complexity can
>>> I expect?
>>>
>>> --
>>> Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
>>> ______________________________________________________________
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>>
>
>
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