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I must have copied the wrong line out of the BoomerAMG website. Oops! I'll probably do that, then. Thanks, Sean From: Pierre Jolivet <pierre@ joliv. et> Sent: Friday, June 14, 2024 3: 20 PM To: Mcintyre, Sean Michael <smm5164@ psu. edu>
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I must have copied the wrong line out of the BoomerAMG website. Oops!</div>
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I'll probably do that, then.</div>
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Thanks,<br>
Sean</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Pierre Jolivet <pierre@joliv.et><br>
<b>Sent:</b> Friday, June 14, 2024 3:20 PM<br>
<b>To:</b> Mcintyre, Sean Michael <smm5164@psu.edu><br>
<b>Cc:</b> petsc-users <petsc-users@mcs.anl.gov><br>
<b>Subject:</b> Re: [petsc-users] Specify BoomerAMG aggressive coarsening interpolation type via options database</font>
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<div>You don't often get email from pierre@joliv.et. <a href="https://urldefense.us/v3/__https://aka.ms/LearnAboutSenderIdentification__;!!G_uCfscf7eWS!fqMtyXmpXhyLmbuySkJstdPyqSidHeTEULH0vxZtYvcQeJP0UBlE8NspnoWucoy3_YWObGB5kVZg3yyPIcaJIA$">
Learn why this is important</a></div>
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<div>On 14 Jun 2024, at 9:15 PM, Mcintyre, Sean Michael <smm5164@psu.edu> wrote:</div>
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Pierre,</div>
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That only specifies it for AMG levels that are not coarsened aggressively. Aggressively coarsened levels end up with the default multipass long-range interpolation.<br>
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<div>My bad, in your initial message, you mentioned the HYPRE_BoomerAMGSetInterpType() API, but I guess you meant to write HYPRE_BoomerAMGSetAggInterpType()?</div>
<div>This is indeed not interfaced right now, but you could copy what’s currently done for -pc_hypre_boomeramg_interp_type and submit an MR.</div>
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<div>Thanks,</div>
<div>Pierre</div>
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Thanks,<br>
Sean</div>
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<font face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b><span class="x_Apple-converted-space"> </span>Pierre Jolivet <<a href="mailto:pierre@joliv.et">pierre@joliv.et</a>><br>
<b>Sent:</b><span class="x_Apple-converted-space"> </span>Friday, June 14, 2024 3:05 PM<br>
<b>To:</b><span class="x_Apple-converted-space"> </span>Mcintyre, Sean Michael <<a href="mailto:smm5164@psu.edu">smm5164@psu.edu</a>><br>
<b>Cc:</b><span class="x_Apple-converted-space"> </span><a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a><span class="x_Apple-converted-space"> </span><<a href="mailto:petsc-users@mcs.anl.gov">petsc-users@mcs.anl.gov</a>><br>
<b>Subject:</b><span class="x_Apple-converted-space"> </span>Re: [petsc-users] Specify BoomerAMG aggressive coarsening interpolation type via options database</font>
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<div>You don't often get email from<span class="x_Apple-converted-space"> </span><a href="mailto:pierre@joliv.et">pierre@joliv.et</a>.<span class="x_Apple-converted-space"> </span><a href="https://urldefense.us/v3/__https://aka.ms/LearnAboutSenderIdentification__;!!G_uCfscf7eWS!fqMtyXmpXhyLmbuySkJstdPyqSidHeTEULH0vxZtYvcQeJP0UBlE8NspnoWucoy3_YWObGB5kVZg3yyPIcaJIA$">Learn why this is important</a></div>
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<div>On 14 Jun 2024, at 8:42 PM, Mcintyre, Sean Michael <<a href="mailto:smm5164@psu.edu">smm5164@psu.edu</a>> wrote:</div>
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Hi there,</div>
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I'd like to try a different long-range interpolation scheme with BoomerAMG's aggressive coarsening (defaults to multipass). Is there a way to specify this via the PETSc options database? I see in the BoomerAMG documentation that the appropriate function call
would be HYPRE_BoomerAMGSetInterpType. I'd prefer to do it via the options database than put it directly into my code. Adding the -help option, I don't see anything like pc_hypre_boomeramg_agg_interp_type. Could this perhaps be added if there isn't currently
a way to do it?</div>
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<div>It’s there already.</div>
<div>$ ./ex1 -pc_type hypre -help|grep multipass</div>
<div> -pc_hypre_boomeramg_interp_type: <now classical : formerly classical> Interpolation type (choose one of) classical direct multipass multipass-wts ext+i ext+i-cc standard standard-wts block block-wtd FF FF1 ext ad-wts ext-mm ext+i-mm ext+e-mm (None)</div>
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<div>Thanks,</div>
<div>Pierre</div>
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Thanks,</div>
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Sean McIntyre</div>
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