[Gate-users] About the speed of the Gate

[张春晖]

Hello Fernando
     I am indeed using ROOT as the output now. How did you resolve it?
Thanks a lot! Best!--Chunhui Zhang

2014-03-03 23:54 GMT+08:00, Fernando Rannou <fernando.rannou at usach.cl>:
> 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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