[Opensim-dev] ODE on Linux x86/64

Ursula MATOVA ursula.matova at klintcentral.net
Sat Nov 29 12:33:59 UTC 2008


Mantis opened on that problem :

http://opensimulator.org/mantis/view.php?id=2717

Regards,
Ursula.

Le 29 nov. 08 à 12:38, Ursula MATOVA a écrit :

> Well,
> About ODE on Linux x86/64.
>
> Just installed/compiled the latest SVN ( 7538 ) on my Linux Box  
> ( Ubuntu 8.0.4 2.6.27.6 kernel / Xeon 8GB Ram ).
>
> Everything run fine, no more crash with ODE ( The provided one ), no  
> more need to manualy compile libopenjpeg, ...
>
> BUT : I'm still experiencing a little problem inworld. My avatar  
> position from the ground / prims isn't good.
> I still need to adjust the following parameter in OpenSim.ini :
>
> ; av_capsule_radius = 0.37
> av_capsule_radius = 0.87
>
> Could you confirm these changes ?
>
> In the past, on Linux x86/32, this parameter was fine. But I guess  
> that now, libode is built with the "opcode" option instead than  
> "gimpact".
>
> What kind of impact could this parameter have ?
>
> Regards,
>
> Ursula.
>
> Le 20 nov. 08 à 14:49, Kyle G a écrit :
>
>> My systems that are crashing ODE:
>>
>> Intel Xeon Kentsfield 64 Bit 4 Gig RAM running 20 regions per machine
>> Windows Server 2008
>> SQL Server 2008 Express w/Advanced Services
>> Version 7364
>>
>> 32 bit system essentially the same configuration do not ever crash  
>> ODE.
>>
>> Kyle G
>> www.reactiongrid.com
>>
>> -----Original Message-----
>> From: opensim-dev-bounces at lists.berlios.de [mailto:opensim-dev-bounces at lists.berlios.de 
>> ] On Behalf Of Ursula MATOVA
>> Sent: Thursday, November 20, 2008 4:12 AM
>> To: opensim-dev at lists.berlios.de
>> Subject: Re: [Opensim-dev] ODE on Linux x86/64
>>
>> Hi Jeroen,
>>
>> 1/ I didn't experienced any slowdown at the moment, but the server is
>> really too powerfull to notice that ...
>> ( Xeon 2.66GHz Quad Core, 8GB Ram, 25 Regions in Grid mode, MySQL
>> storage, OpenSim SVN 7311 )
>> BUT : Note i'm using the very latest Mono ( not 1.9.1 ).
>>
>> I'll try to do some tests this week end on the core2 Duo with Ubuntu
>> 64bits and let you know the results.
>>
>> 2/ Adam, do you mean that only BulletX should be used un x86/64bits ?
>> Why not ODE ? It's a very nice engine, working perfectly for common  
>> use ...
>>
>> Regards,
>> Ursula.
>>
>> Jeroen van Veen a écrit :
>> > Do you experience slowdowns inworld as well on x64? I had exactly  
>> the
>> > same issues, but experienced also slowdowns, and problems with  
>> failing
>> > collision detection.
>> >
>> > Jeroen
>> >
>> > 2008/11/19 Ursula MATOVA <ursula.matova at klintcentral.net
>> > <mailto:ursula.matova at klintcentral.net>>
>> >
>> >     Ok, no problem then :)
>> >
>> >     But : I had to adjust the following parameter in OpenSim.ini  
>> to adjust
>> >     my avatar position on the ground :
>> >
>> >     ;girth of the avatar.  Adds radius to the height also
>> >     ; av_capsule_radius = 0.37
>> >     av_capsule_radius = 0.87
>> >
>> >     Is it "normal" ?
>> >     Because these parameters are really fine with the delivered  
>> ode lib in
>> >     32bits Linux.
>> >
>> >     Regards, Ursula.
>> >
>> >     Teravus Ovares a écrit :
>> >     > the recommended tri-mesh collider is opcode.  not  
>> gimpact.   gimpact
>> >     > is no longer supported
>> >     >
>> >     > Best Regards
>> >     >
>> >     > Teravus
>> >     >
>> >     > On 11/18/08, Frisby, Adam <adam at deepthink.com.au
>> >     <mailto:adam at deepthink.com.au>> wrote:
>> >     >
>> >     >> I think maybe x64 compatibility checking might be a good  
>> goal
>> >     for this current 0.6 version number. There's nothing in OpenSim
>> >     which prevents us from being properly x64 supported - only  
>> some of
>> >     our dependencies. I have personally a desire to get as much
>> >     'managed' code as possible to prevent a large number of these
>> >     issues. If we can get the default storage and physics engines
>> >     fully managed, that might go a long way to helping - although  
>> the
>> >     only decent managed physics engine is BulletX.
>> >     >>
>> >     >> Adam
>> >     >>
>> >     >>
>> >     >>> -----Original Message-----
>> >     >>> From: opensim-dev-bounces at lists.berlios.de
>> >     <mailto:opensim-dev-bounces at lists.berlios.de> [mailto:opensim-dev-
>> >     <mailto:opensim-dev->
>> >     >>> bounces at lists.berlios.de  
>> <mailto:bounces at lists.berlios.de>] On
>> >     Behalf Of Ursula MATOVA
>> >     >>> Sent: Tuesday, 18 November 2008 3:45 PM
>> >     >>> To: opensim-dev at lists.berlios.de
>> >     <mailto:opensim-dev at lists.berlios.de>
>> >     >>> Subject: [Opensim-dev] ODE on Linux x86/64
>> >     >>>
>> >     >>> Hi all,
>> >     >>>
>> >     >>> I'm now running OpenSim on a Xeon based server. But I'd  
>> like to
>> >     >>> experience 64bits OS.
>> >     >>>
>> >     >>> So, I have installed Ubuntu 8.0.4/64bits as usual, compiled
>> >     Mono from
>> >     >>> the latest sources and then try to run OpenSim ( was SVN. 
>> 7311
>> >     during
>> >     >>> my tests ).
>> >     >>>
>> >     >>> First, i had problems with "libjpeg" libraries. That was
>> >     solved easily
>> >     >>> by following instructions found on the wiki.
>> >     >>>
>> >     >>> The last problem was with ODE ( libode.so ). I have tried  
>> to
>> >     recompile
>> >     >>> it from sources, but if I use the "gimpact" option,  
>> during the
>> >     first
>> >     >>> agent connexion, I got a SegFault.
>> >     >>>
>> >     >>> I have found on internet that I could compile ODE with the
>> >     "opcode"
>> >     >>> option. Then I have tried this solution and I'm now able to
>> >     connect to
>> >     >>> my OpenSim server.
>> >     >>>
>> >     >>> But one strange thing is that I need to adjust some avatar
>> >     settings in
>> >     >>> OpenSim.ini, because my avatar wasn't properly positioned  
>> on the
>> >     >>> ground.
>> >     >>> It's ok, but seems that these parameters impact avatar
>> >     collision with
>> >     >>> objects.
>> >     >>>
>> >     >>> My question is :
>> >     >>>
>> >     >>> Do you plan to update & provide some new release of "ode"  
>> with the
>> >     >>> "gimpact" option for x86-64 in the future ?
>> >     >>>
>> >     >>> Thanks in advance,
>> >     >>>
>> >     >>> Regards,
>> >     >>>
>> >     >>> Ursula.
>> >     >>>
>> >     >>> PS: So sorry for my english, it's late in France and I'm  
>> a bit
>> >     tired :P
>> >     >>> _______________________________________________
>> >     >>> Opensim-dev mailing list
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>> >
>> >     >>> https://lists.berlios.de/mailman/listinfo/opensim-dev
>> >     >>>
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>> >     >>
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