[MINC-users] x86 system optimization

[Jon Erik Ween, MD]

OK, Thanks.I gues this means there is no tweak to Mesa that will improve
performance unless you recompile the binary?

Jon


On Wed, 2002-09-04 at 07:21, Jason Lerch wrote:
> Jon,
> 
> ldd only lists dynamically loaded libraries - it is therefore possible 
> that Rick compiled Display using a static version of Mesa. There is no 
> way, however, that Display can run without some version of OpenGL or its 
> predecessors (that I know of, anyway).
> 
> Cheers,
> 
> Jason
> 
> On Wed, Sep 04, 2002 at 07:19:40AM -0700, Jon Erik Ween, MD wrote:
> > On Wed, 2002-09-04 at 06:04, Jason Lerch wrote:
> > 
> > Jason
> > 
> > Thanks for your reply. This is my output of "ldd Display". I don't see
> > any link to a GL library, though I'm not sure what all these mean. The
> > version of Display/register I use was compiled by Rick Hoge at MGH.
> > Maybe his binaries are ideosyncratic?
> > 
> > 
> >         /lib/libNoVersion.so.1 => /lib/libNoVersion.so.1 (0x40014000)
> >         libm.so.6 => /lib/i686/libm.so.6 (0x40031000)
> >         libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x40053000)
> >         libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x40128000)
> >         libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x40135000)
> >         libXmu.so.6 => /usr/X11R6/lib/libXmu.so.6 (0x40181000)
> >         libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
> >         libdl.so.2 => /lib/libdl.so.2 (0x40197000)
> >         libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x4019a000)
> >         libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x401a2000)
> >         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
> > 
> > Jon
> > 
> > > Hi John,
> > > 
> > > > I notice that the apps are VERY  CPU intensive and suspect they are not
> > > > utilizing the VPU on the videocard very much? 
> > > > 
> > > > Also "ldd Display" does not show any links to the Mesa libraries. I
> > > > thought these program were Mesa dependent?
> > > 
> > > They are indeed OpenGL dependent (ldd should show a link to libGL and
> > > libGLU), whether Mesa or some other implementation. Unfortunately,
> > > however, they were not written to take advantage of most of the OpenGL
> > > acceleration you can gain, whether it be on an SGI or a Linux box. This is 
> > > especially the case for the geometry window, unfortunately. There are a 
> > > few other visualisation tools around here at the MNI, though none of them 
> > > are all that mature at this point. 
> > > 
> > > > Is there any compilation of minc tool functions, usage and syntax apart
> > > > from the man pages?
> > > 
> > > Try http://www.bic.mni.mcgill.ca/software
> > > 
> > > While it isn't nearly as comprehensive as it ought to be, it might provide 
> > > a few more pointers than just the man pages. Please let me know if you 
> > > find anything that is especially notable for its absence!
> > > 
> > > Cheers,
> > > 
> > > Jason
> > > _______________________________________________
> > > MINC-users@bic.mni.mcgill.ca
> > > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
> > 
> > 
> > _______________________________________________
> > MINC-users@bic.mni.mcgill.ca
> > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
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