<div dir="ltr"><div><div><div>Hi Chunhui Zhang,<br><br></div>What do you mean by becoming slower and slower, how do you determine that ?<br></div>Otherwise, I meant the second solution, dividing the simulation into many small tasks.<br>
<br></div>Best regards,<br>Simon<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Mar 3, 2014 at 3:45 PM, ÕÅ´ºêÍ <span dir="ltr"><<a href="mailto:arnoxiaolei86@gmail.com" target="_blank">arnoxiaolei86@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello Simon:<br>
Thank you for your reply! When simulating our PET system, I<br>
found that my Gate became slower and slower, Have you encountered<br>
it£¿In addition, What is the meaning of “parallelizing our<br>
simulation”£¿ using the Cuda? or dividing our simulation into many<br>
small tasks?<br>
<br>
Looking forward to your reply, Thanks a lot!<br>
Best.---Chunhui Zhang<br>
<br>
<br>
2014-03-03 16:51 GMT+08:00, Simon Stute <<a href="mailto:gate.stute@gmail.com">gate.stute@gmail.com</a>>:<br>
<div class="HOEnZb"><div class="h5">> Hi,<br>
><br>
> Gate is build on Geant4 in a quite straightforward way.<br>
> So to answer your question "is G4 faster than Gate", I would say: "it<br>
> depends on how you will code your new program".<br>
> G4 cannot be used on its own, it is a library.<br>
> If you want a really really simple PET simulation, maybe you can do it with<br>
> G4.<br>
> But if you want a "real" PET simulation in the "realistic" sense, then I<br>
> recommend you to stay on Gate.<br>
> Otherwise, you need good skills in C++ and plenty of time to do something<br>
> already done...<br>
> Also you won't benefit from a validated and experienced code.<br>
> At least, have you thought about parallelizing your simulation ?<br>
><br>
> Regards,<br>
> Simon<br>
><br>
><br>
><br>
> On Mon, Mar 3, 2014 at 4:09 AM, ÕÅ´ºêÍ <<a href="mailto:arnoxiaolei86@gmail.com">arnoxiaolei86@gmail.com</a>> wrote:<br>
><br>
>> Hello everyone:<br>
>> I am simulating the small animal PET using Gate V6.1£¬ but the<br>
>> speed is so slow. I want to know whether the speed of Geant4 is<br>
>> faster than that of the Gate. If so, I will simulate our system under<br>
>> Geant4, Thanks a lot! ---Chunhui Zhang<br>
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><br>
</div></div></blockquote></div><br></div>