<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div> git grep Copyright locates some files that are copyrighted by other groups (but fit within the BSD license) so I think it is fine to include the <i class="" style="font-family: Calibri, Arial, Helvetica, sans-serif;"><span lang="plaintext" class=""><font size="3" class="">NVIDIA </font>copyright information in appropriate files. </span></i><div class=""><font face="Calibri, Arial, Helvetica, sans-serif" class=""><i class=""><br class=""></i></font></div><div class=""><font face="Calibri, Arial, Helvetica, sans-serif" class=""><i class=""> We should also add some text to LICENSE indicating certain files have additional copyrights indicated at the top of the individual file.</i></font></div><div class=""><font face="Calibri, Arial, Helvetica, sans-serif" class=""><i class=""><br class=""></i></font></div><div class=""><font face="Calibri, Arial, Helvetica, sans-serif" class=""><i class=""> Barry</i></font></div><div class=""><font face="Calibri, Arial, Helvetica, sans-serif" class=""><i class=""> <br class=""></i></font><div><br class=""><blockquote type="cite" class=""><div class="">On Sep 3, 2021, at 7:48 AM, Mark Adams <<a href="mailto:mfadams@lbl.gov" class="">mfadams@lbl.gov</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="">All,</div><div class=""><br class=""></div><div class="">Matthew (cc'ed) and I are going to start working on an AMGx interface in PETSc, PCAMGX, and I suggested that he may want to think about moving the core AMG PC code into PETSC as a built-in PC.</div><div class=""><br class=""></div><div class="">1) We would have to decide of we want the maintenance burden of moving the whole thing in, but we will probably start with a 3rd party library unless this move starts looking like a really good idea. We have not started to really dig into this.</div><div class=""><br class=""></div>2) NVIDIA's lawyers have some thoughts that we will need to address even with a 3rd party library (I know Hypre has this license notification and LLNL seems happy with what we did).<div class=""><br class=""></div><div class="">First, Mathew says that this process "can open the door to us helping with PETSc more generally."<div class=""><br class=""></div>I will just quote the rest of Mathews' message:<div class=""><br class=""></div><div class="">Thanks,</div><div class="">Mark</div><div class=""><br class=""><div class=""><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class="">I can see you don't add license notifications to the headers of the source files, but this tends to be the approach we take for copyright. I'm also not sure there is a very good alternative?<br class=""></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class=""><br class=""></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class="">Instead of the monolithic copying of the full BSD-2 license with the NVIDIA copyright (which I appreciate might not be desirable), would it be a suitable compromise if we used the SPDX identifier, which looks like:</i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class=""><br class=""></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class="">// <span lang="plaintext" class="">Copyright (c) 1991-2021, NVIDIA. </span><span lang="plaintext" class="">All rights reserved.</span><span lang="plaintext" class=""><br class=""></span></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class=""><span lang="plaintext" class="">// Copyright (c) 1991-2021, UChicago Argonne, LLC and the PETSc Development Team. All rights reserved.</span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span><span lang="plaintext" class=""></span></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class="">// SPDX-License-Identifier: BSD-2-clause<br class=""></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class=""><br class=""></i></div><div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><i class="">This would be for the main source files that we make any significant contributions to or author. I would be interested to hear your thoughts / ideas on this.</i></div></div><div class=""><br class=""></div></div></div></div>
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