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<p class="MsoPlainText">That’s great. Many thanks for the quick response.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thanks,<o:p></o:p></p>
<p class="MsoPlainText">Chris<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<pre><span style="color:black">><i> Hi all,<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i> I’ve come across a problem with using ghosted vectors on GPUs, using CUDA<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> backend. This is with the latest PETSc release version (3.18.5).<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i> I saw that there is already an issue on Gitlab regarding this issue (<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <a href="https://gitlab.com/petsc/petsc/-/issues/1096">https://gitlab.com/petsc/petsc/-/issues/1096</a>), and also an associated<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> branch and merge request (<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> <a href="https://gitlab.com/petsc/petsc/-/merge_requests/4542">https://gitlab.com/petsc/petsc/-/merge_requests/4542</a>), but there doesn’t<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> seem to have been any activity on the merge request for about a year.<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i> Are there any plans to get this fix for VecCreateGhost on GPUs into the<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i> main PETSc branch?<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Yes, I will get this in. I have two classes this semester, so things have<o:p></o:p></span></pre>
<pre><span style="color:black">been slower than normal. Will definitely be in by summer.<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> Thanks,<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> Matt<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">><i> Thanks,<o:p></o:p></i></span></pre>
<pre><span style="color:black">><i><o:p> </o:p></i></span></pre>
<pre><span style="color:black">><i> Chris</i><o:p></o:p></span></pre>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
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