[Gate-users] voxelized simulation, very slow!

[Parisa Khateri]

Dear Julia,

Thank a lot for your email. I will add that actor and will check the result. But as an example, for this number of voxels (256*256*256) how much your simulation time increases? Do you have both phantom and source voxelized, or only phantom?

Kind regards,

Parisa
________________________________
From: Gate-users [gate-users-bounces at lists.opengatecollaboration.org] on behalf of Brosch, Julia [Julia.Brosch at med.uni-muenchen.de]
Sent: 05 June 2019 19:02
To: Parisa Khateri; gate-users at lists.opengatecollaboration.org
Subject: Re: [Gate-users] voxelized simulation, very slow!

Dear Parisa,

I’ve just started to use Gate with voxelized geometries and phantoms and my simulations are also very slow. But in my case – the more experiences users please correct me if I’m wrong – the initialization is not the problem. I am using this actor with my simulations:
/gate/actor/addActor               SimulationStatisticActor stat
/gate/actor/stat/save              stat-NAME.txt
/gate/actor/stat/saveEveryNSeconds 60

The “ElapsedTime” since simulation start is scored in the resulting textfile, and there is also a line giving the “ElapsedTimeWoInit” – by subtracting these to lines, you should get the time of the initialization of your simulation. In my case it’s always less than 1 minute, and I am simulating matrix sizes of 256x256x256 with small voxel sizes. I hope this helps you at least a little bit.

Best,
Julia

Von: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> Im Auftrag von Parisa Khateri
Gesendet: Mittwoch, 5. Juni 2019 01:15
An: gate-users at lists.opengatecollaboration.org
Betreff: [Gate-users] voxelized simulation, very slow!

Dear Gate users,

Those who have experience with voxelized source and phantom in Gate: is it normal that it runs so slow? I just started with it. First I tried a phantom/source with very few voxels. It was relatively slow. Then I enhanced the resolution of the phantom/source (i.e. increased the number of voxels), and it is about 24 hours, yet I don't see any progress in the simulation!
Apparently, initializing the simulation takes so much time for voxelized cases, right?

With kind regards,

Parisa
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opengatecollaboration.org/pipermail/gate-users/attachments/20190606/a0429057/attachment-0001.html>