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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif">Thank you, Matthew!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Matthew Knepley <knepley@gmail.com> <br>
<b>Sent:</b> Wednesday, January 4, 2023 10:52 AM<br>
<b>To:</b> Venugopal, Vysakh (venugovh) <venugovh@mail.uc.edu><br>
<b>Cc:</b> petsc-users@mcs.anl.gov<br>
<b>Subject:</b> Re: [petsc-users] Getting global indices of vector distributed among different processes.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p><strong><span style="font-family:"Open Sans",sans-serif;color:white;background:#E00122">External Email: Use Caution</span></strong><span style="color:white"><o:p></o:p></span></p>
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<p class="MsoNormal">On Wed, Jan 4, 2023 at 10:48 AM Venugopal, Vysakh (venugovh) via petsc-users <<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">Hello,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">Is there a way to get the global indices from a vector created from DMCreateGlobalVector? Example:</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">If global vector V (of size 10) has indices {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} and they are divided into 2 processes. Is there a way to
get information such as (process 1: {0,1,2,3,4}, process 2: {5,6,7,8,9})?</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><a href="https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpetsc.org%2Fmain%2Fdocs%2Fmanualpages%2FVec%2FVecGetOwnershipRange%2F&data=05%7C01%7Cvenugovh%40mail.uc.edu%7C365cb9cf491f40c0905f08daee6ba834%7Cf5222e6c5fc648eb8f0373db18203b63%7C1%7C0%7C638084443414359044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=u1YCZsZA9ZQPdMGG4kUAXfKRGIRTu%2FNwf3B2Ya6N7L0%3D&reserved=0">https://petsc.org/main/docs/manualpages/Vec/VecGetOwnershipRange/</a><o:p></o:p></p>
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<p class="MsoNormal"> Thanks,<o:p></o:p></p>
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<p class="MsoNormal"> Matt<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">The reason I need this information is that I need to query the values of a different vector Q of size 10 and place those values in V.
Example: Q(1) --- V(1) @ process 1, Q(7) – V(7) @ process 2, etc.. If there are smarter ways to do this, I am happy to pursue that.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">Thank you,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif">Vysakh V.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">---</span><o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">Vysakh Venugopal</span><o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">Ph.D. Candidate</span><o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">Department of Mechanical Engineering</span><o:p></o:p></p>
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<span style="font-family:"Arial",sans-serif;color:black;border:none windowtext 1.0pt;padding:0in">University of Cincinnati, Cincinnati, OH 45221-0072</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">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<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cse.buffalo.edu%2F~knepley%2F&data=05%7C01%7Cvenugovh%40mail.uc.edu%7C365cb9cf491f40c0905f08daee6ba834%7Cf5222e6c5fc648eb8f0373db18203b63%7C1%7C0%7C638084443414359044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=tByewTx8jvHGDe9ECCmwP5ZKUtRWB%2Fy50ZJgJ3ofizI%3D&reserved=0" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><o:p></o:p></p>
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