[Gate-users] Gate on GPU

[G Tom]

Thanks Ezzat for your reply. I wonder if anyone else in Gate is running
radiotherapy  applications on the GPU.
Anyone uses this GateGPUPhotRadTheraActor ? I was also wondering if there
is a GPU equivalent of the DoseActor

Thanks

GT

On Tue, Aug 28, 2018 at 3:13 AM Ezzat Elmoujarkach <ezzat.elmo at gmail.com>
wrote:

> Hello Tom,
>
> For the first question I would assume so. I never looked in the RT
> applications since all my work so far are in imaging. However, I believe
> you also should add the GPU lines for the GPU ID and buffer size.
>
> For the second question. By theory yes, it should speed up the simulation
> due to the nature of how the GPU runs calculations vs CPU where GPU can
> have thousands of CUDA cores to finish the job quicker. I run a test
> simulation ( did not have the time yet to run a full simulation) and was
> using a GTX 920M card on a laptop with i7 intel core ( sorry cannot
> remember the full specs). The results showed that the GPU was 12 times
> faster than the CPU simulation.
>
> Sorry I couldn't be of much help and I hope others can share the
> experience in this area.
>
> Best Regards,
>
> Ezzat
>
> On Tue, Aug 28, 2018 at 1:20 AM G Tom <gregthom992 at gmail.com> wrote:
>
>> HI all,
>>
>> I see that some of you have tried to install GAte with GPU support and I
>> have some questions:
>>
>> First of all,  does gate support Radiotherapy simulations on the GPU?
>> I found this actor GateGPUPhotRadTheraActor but didn't find any examples;
>> could I simply replace my current actor with "/gate/actor/addActor
>> GateGPUPhotRadTheraActor   " ?
>>
>> Secondly, is there expected to be a speed up when using GateGPU compared
>> to when using GateCPU ? Specifically, for a small local cluster of 40
>> cores  (5 nodes Xeon(R) CPUs , E5420  @ 2.50GHz, with 8 cores each)
>> compared to using GPU enabled gate ( GeForce GTX 1080) on one node ?
>>
>> Appreciate any opinions as I embark on this journey.
>>
>> Thanks
>>
>> GT
>>
>
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