<div dir="ltr">Roland and Erik,<div> thanks a lot for the explanation. I saw the release notes with CUDA listed in the larger changes and this is why I asked.</div><div><br></div><div>Erik, does CarpetX already support GPU via AMReX or is more work needed?</div><div><br></div><div>Thanks,</div><div>Bruno</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno gio 3 giu 2021 alle ore 14:35 Erik Schnetter <<a href="mailto:schnetter@cct.lsu.edu">schnetter@cct.lsu.edu</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">To my knowledge, the improved support means that it is now possible to<br>
mix CUDA and C++ code in the same source files. That is, you can<br>
compile C++ code with a CUDA compiler, which will pass on the C++ bits<br>
to the regular C++ compiler while extracting the CUDA code. This is<br>
merely a technical improvement of the make system that makes it easier<br>
to write one version code that can run on both a CPU or a GPU, instead<br>
of having to write two separate versions of the code.<br>
<br>
The real CUDA-related work happened in CarpetX<br>
<<a href="https://bitbucket.org/eschnett/cactusamrex/" rel="noreferrer" target="_blank">https://bitbucket.org/eschnett/cactusamrex/</a>>, which is not part of<br>
the Einstein Toolkit yet. But we're getting there!<br>
<br>
-erik<br>
<br>
On Thu, Jun 3, 2021 at 3:40 AM Bruno Giacomazzo<br>
<<a href="mailto:bruno.giacomazzo@unimib.it" target="_blank">bruno.giacomazzo@unimib.it</a>> wrote:<br>
><br>
> would it be possible to have a (short) summary of the CUDA support introduced in the latest release?<br>
><br>
> Thanks,<br>
> Bruno<br>
><br>
> Il giorno gio 3 giu 2021 alle ore 00:15 <<a href="mailto:users@einsteintoolkit.org" target="_blank">users@einsteintoolkit.org</a>> ha scritto:<br>
>><br>
>> Hello,<br>
>><br>
>> Please consider joining the weekly Einstein Toolkit phone call at<br>
>> 9:00 am US central time on Thursdays. For details on how to connect<br>
>> and what agenda items are to be discussed, use the link below.<br>
>><br>
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><br>
><br>
><br>
> --<br>
><br>
> Prof. Bruno Giacomazzo<br>
> Department of Physics<br>
> University of Milano-Bicocca<br>
> Piazza della Scienza 3<br>
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><br>
> email: <a href="mailto:bruno.giacomazzo@unimib.it" target="_blank">bruno.giacomazzo@unimib.it</a><br>
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><br>
> ----------------------------------------------------------------------<br>
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> Those who understand binary, and those who don't<br>
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<br>
<br>
<br>
-- <br>
Erik Schnetter <<a href="mailto:schnetter@cct.lsu.edu" target="_blank">schnetter@cct.lsu.edu</a>><br>
<a href="http://www.perimeterinstitute.ca/personal/eschnetter/" rel="noreferrer" target="_blank">http://www.perimeterinstitute.ca/personal/eschnetter/</a><br>
</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"><div dir="ltr"><p><font color="#000000">Pr<font face="arial, sans-serif">of. Bruno Giacomazzo<br>Department of Physics<br>University of Milano-Bicocca<br></font></font><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">Piazza della Scienza 3<br></font></span><span style="color:rgb(0,0,0)"><font face="arial, sans-serif">20126 Milano<br></font></span><span style="font-size:12.8px;color:rgb(0,0,0)">Italy</span></p><p><font color="#000000"><span style="font-size:12.8px">email: </span><span style="font-size:12.8px"><a href="mailto:bruno.giacomazzo@unimib.it" target="_blank">bruno.giacomazzo@unimib.it</a><br></span><span style="font-size:12.8px">phone: (+39) 02 6448 2321</span></font><br><font color="#000000"><span style="font-size:12.8px">web: </span></font><span style="color:rgb(0,0,0);font-size:12.8px"><a href="http://www.brunogiacomazzo.org/" style="font-size:12.8px" target="_blank">http://www.brunogiacomazzo.org</a></span></p><p><font color="#000000">----------------------------------------------------------------------<br><span style="font-size:12.8px">There are only 10 types of people in the world:<br></span><span style="font-size:12.8px">Those who understand binary, and those who don't<br></span><span style="font-size:12.8px">----------------------------------------------------------------------<br></span></font></p></div></div></div></div></div></div></div>