[Opensim-dev] ODE on Linux x86/64

Sat Nov 29 11:38:17 UTC 2008

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
> >     >>> Opensim-dev at lists.berlios.de <mailto:Opensim-dev at lists.berlios.de 
> >
> >     >>> https://lists.berlios.de/mailman/listinfo/opensim-dev
> >     >>>
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