[Gate-users] About the speed of the Gate

[Fernando Rannou]

I have experienced that if I use ROOT for data recording, the I/O gets
slower and slower if the file
grows excessively.


Fernando


On Mon, Mar 3, 2014 at 11:45 AM, 张春晖 <arnoxiaolei86 at gmail.com> wrote:

> Hello Simon:
>       Thank you for your reply! When simulating our PET system, I
> found that my Gate became slower and slower, Have you encountered
> it？In addition, What is the meaning of  “parallelizing our
> simulation”？ using the Cuda? or dividing our simulation into many
> small tasks?
>
> Looking forward to your reply, Thanks a lot!
> Best.---Chunhui Zhang
>
>
> 2014-03-03 16:51 GMT+08:00, Simon Stute <gate.stute at gmail.com>:
> > Hi,
> >
> > Gate is build on Geant4 in a quite straightforward way.
> > So to answer your question "is G4 faster than Gate", I would say: "it
> > depends on how you will code your new program".
> > G4 cannot be used on its own, it is a library.
> > If you want a really really simple PET simulation, maybe you can do it
> with
> > G4.
> > But if you want a "real" PET simulation in the "realistic" sense, then I
> > recommend you to stay on Gate.
> > Otherwise, you need good skills in C++ and plenty of time to do something
> > already done...
> > Also you won't benefit from a validated and experienced code.
> > At least, have you thought about parallelizing your simulation ?
> >
> > Regards,
> > Simon
> >
> >
> >
> > On Mon, Mar 3, 2014 at 4:09 AM, 张春晖 <arnoxiaolei86 at gmail.com> wrote:
> >
> >> Hello everyone:
> >>          I am simulating the small animal PET using Gate V6.1， but the
> >> speed is so slow. I want  to know whether the speed of Geant4 is
> >> faster than that of the Gate. If so, I will simulate our system under
> >> Geant4, Thanks a lot! ---Chunhui Zhang
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