<div dir="ltr">Hello Zhengzhi, <div><br></div><div>yes sorry, GPU part is no more maintained. It still is viewable in the history of git to keep the memory, but probably difficult to make it work. </div><div><br></div><div>The current best way to speed up simulation is </div><div>1) to optimize your physics (cut), geometry (less voxels), etc</div><div>2) to run several Gate in parallel, via several jobs (with 56 cores, this is nice!), providing that you use 'auto' as the random seed to avoid reproducing the exact same simulation. You will have to merge results at the end. </div><div><br></div><div>Sincerely, </div><div>David </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 17, 2020 at 1:28 AM Albert Grace Lieu <<a href="mailto:albertnew2018@gmail.com">albertnew2018@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear Gate users, <br><div><br></div><div>First thing first, can we still possibly use the GATE GPU version? I am trying to run a GATE simulation on GPU (GATE V8.2, CUDA-10.1), but end up with a similar problem reported <a href="https://github.com/OpenGATE/Gate/issues/188" target="_blank">[1]</a> by Thomas Funck. In the post, David Sarrut said "Hello, sorry the GPU part is no more maintained ...". Although it might not be maintained anymore (which is really unfortunate), can one still use, say with the old GATE version? Without CUDA acceleration, GATE running with 56 cores is still painfully slow. Please give me any help.</div><div><br></div><div>Thanks a lot,</div><div>Sincerely</div><div><br></div><div>Zhengzhi</div><div><br></div><div>[1] <a href="https://github.com/OpenGATE/Gate/issues/188" target="_blank">https://github.com/OpenGATE/Gate/issues/188</a></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 13, 2020 at 2:39 PM Albert Grace Lieu <<a href="mailto:albertnew2018@gmail.com" target="_blank">albertnew2018@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear Gate users, <div><br></div><div>In the <a href="https://opengate.readthedocs.io/en/latest/how_to_use_gate_on_a_gpu.html" target="_blank">user manual</a>, it says "<b> Examples are provided within the GATE source package and users can find a complete example about How To define and run a complete PET simulation set-up by using a GPU architecture</b>.", does anyone know where the example is? (I did not find it)</div><div><br></div><div>I try to run GATE simulation on GPU but could not find enough information about how to do so. The only pieces of information about running GATE on GPU that I can find are [<a href="http://www.opengatecollaboration.org/sites/default/files/Talk6.pdf" target="_blank">1</a>, <a href="https://github.com/OpenGATE/GateContrib/tree/master/imaging/SPECT_GPU" target="_blank">2</a>] and the<a href="https://opengate.readthedocs.io/en/latest/how_to_use_gate_on_a_gpu.html" target="_blank"> user manual</a>. None of them seem to give me an entire picture of running GATE PET simulation on GATE. I am using GATE V8.2 with GATE_USE_GPU enabled along with the Nvidia toolkit 10.1. <br></div><div><br></div><div>I deeply appreciate any suggestions and help.</div><div>Sincerely,</div><div><br></div><div>Zhengzhi</div><div><br></div><div><br></div></div>
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<a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" rel="noreferrer" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">David Sarrut, Phd<br>Directeur de recherche CNRS<br>CREATIS, UMR CNRS 5220, Inserm U1206<div>Centre de lutte contre le cancer Léon Bérard<br>28 rue Laënnec, 69373 Lyon cedex 08<br>Tel : 04 78 78 51 51 / 06 74 72 05 42<br><a href="http://www.creatis.insa-lyon.fr/~dsarrut" target="_blank">http://www.creatis.insa-lyon.fr/~dsarrut</a><br>_________________________________</div><div> "2 + 2 = 5, for extremely large values of 2"<br>_________________________________</div></div></div></div></div></div></div>