[Opensim-dev] General status of OpenSim on 64 bit Linux Architecture

[Dahlia Trimble]

I've heard that some people are using 64 bit with good results. Often there
are some changes in the OpenSim.ini parameters for physics that are required
to enable the avatar to stand properly. Also there are problems with
collision proxies with older versions of Mono on 64 bit linux, but I haven't
seen these problems with Mono 2.2 or later. I have not seen anyone
successfully use OpenSim with the OpenDynamicsEngine physics engine on 64
bit Windows yet, there appears to be some incompatibilities with the 64 bit
compilers for windows.

On Thu, Jun 18, 2009 at 9:45 AM, Salahzar Stenvaag <salahzar at gmail.com>wrote:

> I was curious to understand the current status of OpenSim on Linux
> architectures (such as Linux Red Hat Enterprise 5 or similar) using 64
> bit to access all the available memory.
> Browsing the documentation it seems that OpenSim can run under 64 bit,
> but I've seen MANY mantis referring to problems with 64 bit
> compilation and running.
> Also in the past I've seen some people dropping their 64 bit regions
> (and installing instead 32 bit version) because they didn't work as
> expected (instability, strange collision effects etc).
> I've also seen a 32bit-OpenSim-launcher.exe (or something similar) who
> allegedly can run opensim in 32 bit mode even on 64 bit systems, but
> do not know if this applies only to 64-bit windows or also to linux
> systems. There is some information on the wiki, but it appears quite
> outdated right now.
>
> So the question is: if people want to install opensim on a 64 bit
> system with say 8 Gbram, what do you suggest?
> 1\ don't even think that throw away 64 bit system and use a 32 bit
> system using just the 3.5 G ram it can access?
> 2\ use some tricks to launch opensim.exe as if it were a 32 bit?
> 3\ install 32 bit OS and use some tricks to make it see the memory beyond
> 3.5 G?
> 4\ go on and use 64 bit system it works like a charme and all the
> MANTIS and the old problems had vanished in the void? :)
>
> Thanks for any suggestion on that and if you already run OpenSim on
> RedHat 64 bit if you have any suggestions...
> sal
>
>
>
> Rodney Dangerfield  - "What a dog I got, his favorite bone is in my
> arm." -
> http://www.brainyquote.com/quotes/authors/r/rodney_dangerfield.html
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