Hope this helps. This way of using a different window manager has
helped me with exactly the same spec PB - with and without OpenGL.
Just the Tk rendering is likely to help if the problem persists.
Begin forwarded message:
> From: Murali Vadivelu <[log in to unmask]>
> Date: 22 August 2006 03:29:13 pm BDT
> To: [log in to unmask]
> Subject: OS X speed tips
> Reply-To: CcpNmr software mailing list <[log in to unmask]>
>
> Dear All,
>
> Using X11.app in fullscreen mode (Cmd+Opt+a), with windowmaker
> (installed using Fink) as the window manager (replacing quartz-wm
> in xinitrc), made analysis as snappy as any other programme. This
> was in spite of having about 13 different 3D spectra loaded.
>
> Previously it was a bit sluggish on a G5 and was unusable in my G4
> PB. Now its snappier on both architectures and as good as anything
> else!
>
> Hope this tip helps someone.
>
> Best,
> Murali.
On 8 Nov 2006, at 08:24 pm, Tim Stevens wrote:
>> I have reciently decided to make the migration to using CCPNMR from
>> Ansig . I have however found that the rendering and redraw in
>> CCPNMR is
>> far far t oo slow to use in my day to day NMR analysis. Not only are
>> the redraw and refresh rates slow, but my system hangs when trying
>> to do
>> simple things s uch as zoom, re-contour, etc. I have been running
>> the
>> Open Gl version downloaded using FINK. My current machine is a
>> Powerbook G4 1.5 GHz PPC (running OSX 10.4.8, 1.5 GB of RAM with a
>> ATI
>> Radeon 9700 Open Gl capable graphics card).
>
> Firstly there are several people using similar systems to you who
> have a
> sensible graphics rendering speed. So the problem, to me, sounds like
> something particular to your situation and not a general issue with
> the
> program. Certainly, the contour graphics (at the moment) are not
> yet as
> fast as ANSIG, but it certainly should be usable on a machine of your
> specification.
>
> Something to try is to move away from OpenGL completely and use the Tk
> graphics handler for contours (Menu::Other::General Options - Graphics
> Handler, save then restart the project). If the rendering improves
> we will
> know it's the OpenGL alone that needs attention.
>
> Something else to check is whether the memory is full (could be a
> memory
> leak if not another process) and Analysis is having to rely heavily on
> disk swap space. This should be easy to spot. Generally though you
> have
> enough RAM.
>
>
>> Interstingly, these slow rendering problems are not a problem in
>> either
>> Ansig or Sparky. Both of these programs run effortlessly with these
>> Spectra.
>
> Thus, Analysis ought to be fine too.
>
> As an announcement to the list in general, the optional use of
> spectrum
> contour files, and thus rendering like ANSIG, will definitely be
> available
> in the next Analysis release (1.0.12).
>
> T.
>
> ----------------------------------------------------------------------
> ---------
> Dr Tim Stevens Email: [log in to unmask]
> Department of Biochemistry [log in to unmask]
> University of Cambridge Phone: +44 1223 766018 (office)
> 80 Tennis Court Road +44 7816 338275 (mobile)
> Old Addenbrooke's Site +44 1223 364613 (home)
> Cambridge CB2 1GA WWWeb: http://www.bio.cam.ac.uk/~tjs23
> United Kingdom http://www.pantonia.co.uk
> ----------------------------------------------------------------------
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