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Forum: Installation and Configuration
Re: Feedback Geant 4.9.5p01 slower that Geant4.9.4.p02 (Jérôme Roccaz)
Re: Question Re: Geant 4.9.5p01 slower that Geant4.9.4.p02 (Ben Morgan)
Date: 23 Apr, 2012
From: Jérôme Roccaz <Jérôme Roccaz>

Hi Ben,

On Mon, 23 Apr 2012 14:49:48 GMT, Ben Morgan wrote:

> On Mon, 23 Apr 2012 12:28:48 GMT, J&#65533;r&#65533;me Roccaz wrote:
> > Hi everyone,
> > 
> > I've recently installed release 4.9.5.p01 and used release 4.9.4.p02. My
> > OS is SL6.0 runnind under VMWare.
> > 
> > I've noticed that last release is globally slower :
> > 
> >   - when compiling, linking takes minutes whereas it takes few seconds with release 4.9.4.p02 (using granular libs)
> Could you be a little more specific here? Do you mean linking of each
> Geant4 library when it is built (and if so which libraries?)? Or do you
> mean linking the Geant4 libraries to an application?

I was talking about one of my application. When I compile I have the usual compiling message then : using granular libraries ... linking program name

That linking takes few seconds with previous Geant4 release and minutes with last release

> I don't see any major time penalties on my machines - how much resource
> does your VM have?

I use VMWare 4.0.1 build-528992 Memory : 2Gb Processors : 2 (my hardware is a Core i5) HD : 100Gb (56Gb used)

> >   - execution of the same program is nearly twice slower
> > 
> > I had a look on that thread :
> >
> > 
> > Does it explain both items? If yes will it be soon corrected?
> Not the first - linking should have nothing to do with runtime issues or
> leaks. You may wish to look at the fixed Bug 1286 (
> to see if this relates, though that is memory rather than performance
> related. If you think you've found a major performance difference,
> please submit a Bugzilla report (
> Cheers,
> Ben.

I'll have a look on your link and then report bug if needed.


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