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I’ll check the documentation more carefully to see if I can find this.
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<div>Thanks,</div>
<div>Miguel<br id="lineBreakAtBeginningOfMessage">
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<div>On Jan 19, 2026, at 6:42 PM, Matthew Knepley <knepley@gmail.com> wrote:</div>
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<div dir="ltr">On Mon, Jan 19, 2026 at 12:19 PM MIGUEL MOLINOS PEREZ <<a href="mailto:mmolinos@us.es">mmolinos@us.es</a>> wrote:</div>
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<div>I don’t think so because DMSwarm data is allocated on host. This is right Matt?</div>
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<div>I believe there is code in there to move it if you give a device type.</div>
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<div> Thanks,</div>
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<div>Thanks, </div>
<div>Miguel<br id="m_3779122599512868894lineBreakAtBeginningOfMessage">
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<div>On Jan 19, 2026, at 5:44 PM, Junchao Zhang <<a href="mailto:junchao.zhang@gmail.com" target="_blank">junchao.zhang@gmail.com</a>> wrote:</div>
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<div>With VecCreateGhostWithArray, do you already have the array ready on device?</div>
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<div dir="ltr">--Junchao Zhang</div>
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<div dir="ltr" class="gmail_attr">On Mon, Jan 19, 2026 at 6:56 AM MIGUEL MOLINOS PEREZ <<a href="mailto:mmolinos@us.es" target="_blank">mmolinos@us.es</a>> wrote:<br>
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<p>Dear all,</p>
<p>I have a question about using DMSwarm data with Kokkos-enabled vectors.</p>
<p>My particle data (including ghost particles) are stored in a DMSwarm and for solver purposes I generate PETSc vectors using VecCreateGhostWithArray. I would like to use VecMPIKOKKOS for MPI+GPU computations. Am I correct that DMSwarm field memory cannot
be directly wrapped into a VecMPIKOKKOS using VecCreateGhostWithArray or VecPlaceArray? Any idea on how to proceed?</p>
<p>Thanks in advance.</p>
<p>Best,</p>
<p>Miguel</p>
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<div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener</div>
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<div><a href="https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!dRaNaXfldNFi0stMY3wHDRXGeDjeFBpWj7Um9N-tDX7Z8BYqIaU08uflkdGL08hjG3x6PFSmxQ_smEZoTJAixQ$" target="_blank">https://www.cse.buffalo.edu/~knepley/</a></div>
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