[Gate-users] DoseActor parallelization
Daniel Luis
daniel_ikk at hotmail.com
Wed Jun 13 21:22:43 CEST 2018
Dear Gate users,
I have the some question as Mr. Nícollas.
How can I estimate the Dose with only a few particles simulated?
Thanks in advance,
Daniel Franzé
________________________________
De: Gate-users <gate-users-bounces at lists.opengatecollaboration.org> em nome de Nicollas Goncalves Cavedini <nicollas.cavedini at acad.pucrs.br>
Enviado: quarta-feira, 2 de maio de 2018 11:36
Para: David.Sarrut at creatis.insa-lyon.fr; gate-users
Assunto: Re: [Gate-users] DoseActor parallelization
Dear Sarrut,
Can we assume the dose is linear to scale?
My question is because I would like to simulate the accumulated dose due to a radiotracer decaying along the time.
Regards,
I
[Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality4&> Remetente notificado por
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Nícollas Gonçalves Cavedini
Undergraduate Student - Medical Physics (PUCRS)
Lattes: http://lattes.cnpq.br/7248406497106855
Contact: +55 (51) 99922-9957
Porto Alegre, Brazil.
2018-04-30 2:16 GMT-03:00 David Sarrut <David.Sarrut at creatis.insa-lyon.fr<mailto:David.Sarrut at creatis.insa-lyon.fr>>:
Hello,
you should simulate much less particles (say, few hours of computing time) then scale the results ...
David
PS: please keep messages to the mailing list
On Fri, Apr 27, 2018 at 6:38 PM Nicollas Goncalves Cavedini <nicollas.cavedini at acad.pucrs.br<mailto:nicollas.cavedini at acad.pucrs.br>> wrote:
Dear Sarrut,
I'm going to explain better my work.
I would like to calculate the dose maps (in Gy) in cylinders around a 99mTc source during a long period of time (30minutes), considering the decay along this period.
However, it is impossible to simulate this activity and time, because the simulation will take years in our cluster (40G RAM x 2 clusters)...
My script is attached to this message.
Our configuration is a set of tubes (7cm height and 1.5 cm diameter) filled with a polymer, around a point source (1 Ci of activity) in different distances.
Our proposal is to compare the simulation with an experimental setting.
I appreciate a lot your attention and help.
Regards,
[Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality3&> Remetente notificado por
Mailtrack<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality3&>
Nícollas Gonçalves Cavedini
Undergraduate Student - Medical Physics (PUCRS)
Lattes: http://lattes.cnpq.br/7248406497106855
Contact: +55 (51) 99922-9957
Porto Alegre, Brazil.
2018-04-27 2:17 GMT-03:00 David Sarrut <David.Sarrut at creatis.insa-lyon.fr<mailto:David.Sarrut at creatis.insa-lyon.fr>>:
On Thu, Apr 26, 2018 at 3:20 PM, Nicollas Goncalves Cavedini <nicollas.cavedini at acad.pucrs.br<mailto:nicollas.cavedini at acad.pucrs.br>> wrote:
Dear David,
I thought i could only do this for images. For example, if I merge five dose maps with 0.2 Ci will I have a dose map of 1 Ci ?
yes ! btw is it advised use Gy no Ci ;)
David
Best regards,
Nícollas Gonçalves Cavedini
Undergraduate Student - Medical Physics (PUCRS)
Lattes: http://lattes.cnpq.br/7248406497106855
Contact: +55 (51) 99922-9957
Porto Alegre, Brazil.
2018-04-26 3:05 GMT-03:00 David Sarrut <David.Sarrut at creatis.insa-lyon.fr<mailto:David.Sarrut at creatis.insa-lyon.fr>>:
Hello,
no parallelization specific to one actor, but you can always launch the same Gate simulation in parallel provided that you don't use the same random seed number (use: /gate/random/setEngineSeed auto). You will need to merge all outputs at the end of all simulations.
Sincerely,
David
On Wed, Apr 25, 2018 at 3:25 PM, Nicollas Goncalves Cavedini <nicollas.cavedini at acad.pucrs.br<mailto:nicollas.cavedini at acad.pucrs.br>> wrote:
Dear Gate users!
I would like to ask if someone knows if there's anyway to parallelize the DoseActor in GATE v7.1. I want to simulate 99m-Tc sources with 1Ci of activity on the university cluster but the time of simulations it is too long.
I appreciate any help in advance!
Regards,
Nícollas Gonçalves Cavedini
Undergraduate Student - Medical Physics (PUCRS)
Lattes: http://lattes.cnpq.br/7248406497106855
Contact: +55 (51) 99922-9957
Porto Alegre, Brazil.
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"2 + 2 = 5, for extremely large values of 2"
_________________________________
--
David Sarrut, Phd
Directeur de recherche CNRS
CREATIS, UMR CNRS 5220, Inserm U1206
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec<https://maps.google.com/?q=28+rue+La%C3%ABnnec&entry=gmail&source=g>, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/~dsarrut
_________________________________
"2 + 2 = 5, for extremely large values of 2"
_________________________________
--
David Sarrut, Phd
Directeur de recherche CNRS
CREATIS, UMR CNRS 5220, Inserm U1206
Centre de lutte contre le cancer Léon Bérard
28 rue Laënnec<https://maps.google.com/?q=28+rue+La%C3%ABnnec&entry=gmail&source=g>, 69373 Lyon cedex 08
Tel : 04 78 78 51 51 / 06 74 72 05 42
http://www.creatis.insa-lyon.fr/~dsarrut
_________________________________
"2 + 2 = 5, for extremely large values of 2"
_________________________________
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