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<p>Hi Simon,</p>
<p>thank you for the quick reply. I'll try the splitting strategy.</p>
<p>Best regards,</p>
<p>Vincent<br>
</p>
<div class="moz-cite-prefix">On 15.10.19 17:53, Simon Rit wrote:<br>
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cite="mid:CAF0oig311aVwYvwGpo4eryr=7n1HVb-YagSNh53XrsqN45aHEA@mail.gmail.com">
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<div>Hi,</div>
<div>No. This is quite a challenge to implement this and we have
no resources on this topic. My first attempt to do this would
be to use <a href="http://www.astra-toolbox.com/"
moz-do-not-send="true">ASTRA</a> from RTK. RTK only
automagically select the "best" GPU, see <a
href="https://github.com/SimonRit/RTK/blob/master/utilities/ITKCudaCommon/src/itkCudaContextManager.cxx#L67"
moz-do-not-send="true">here</a>.<br>
</div>
<div>For FDK, I think it would be easy to split the volume and
ask each GPU to reconstruct a specific part of the volume (but
I never did it and RTK would need to allow parameterization of
the device which it currently doesn't).</div>
<div>Note that we don't use the unified memory framework.<br>
</div>
<div>Simon</div>
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<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Oct 15, 2019 at 5:43
PM vincent <<a href="mailto:vl@xris.eu"
moz-do-not-send="true">vl@xris.eu</a>> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hello
everyone,<br>
<br>
I was wondering if RTK automagically spread the workload over
several <br>
GPU's when available on a machine ? I tried to find the
answer by <br>
myself, but up to now, the only information I could get were
that:<br>
<br>
- cuda provides with a unified memory framework supposed to
simplify <br>
memory management,<br>
<br>
- class itkCudaUtil has members that identify all the GPU's
present on <br>
the computer.<br>
<br>
I had a look on the other itkCuda*** classes but found nothing
that <br>
could help me understand if multiple GPU's are managed by RTK.<br>
<br>
Would someone would be so kind as to help me find an answer ?<br>
<br>
I thank you very much in advance,<br>
<br>
best regards,<br>
<br>
Vincent<br>
<br>
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