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On Wed, Apr 10, 2024 at 7: 49 AM Khurana, Parv <p. khurana22@ imperial. ac. uk> wrote: Hello PETSc users community, Thank you in advance for your help as always. I am using BoomerAMG from Hypre via PETSc as a part of preconditioner in my software
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<div dir="ltr"><div dir="ltr">On Wed, Apr 10, 2024 at 7:49 AM Khurana, Parv <<a href="mailto:p.khurana22@imperial.ac.uk">p.khurana22@imperial.ac.uk</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-9195647458140437696">
<div style="font-size:1px;color:rgb(255,255,255);line-height:1px;height:0px;max-height:0px;opacity:0;overflow:hidden;display:none">
Hello PETSc users community, Thank you in advance for your help as always. I am using BoomerAMG from Hypre via PETSc as a part of preconditioner in my software (Nektar++). I am trying to understand the time profiling information that is printed
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<p class="MsoNormal">Hello PETSc users community,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thank you in advance for your help as always.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I am using BoomerAMG from Hypre via PETSc as a part of preconditioner in my software (Nektar++). I am trying to understand the time profiling information that is printed using the -log_view option.</p></div></div></div></blockquote><div><br></div><div>I believe that our Hypre interface plugs into the PETSc MG callbacks. Thus you should be able to use</div><div><br></div><div> -pc_mg_log</div><div><br></div><div>to split the various levels into different logging stages. This still will not directly log Hypre time, but it should be better.</div><div><br></div><div> Thanks,</div><div><br></div><div> MAtt </div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-9195647458140437696"><div lang="EN-GB" style="overflow-wrap: break-word;"><div class="m_-9195647458140437696WordSection1">
<p class="MsoNormal">I want to understand how much time is spent in the smoothening step vs the time to solve on the coarsest grid I reach. The output that I get from -log_view (pasted below) gives me information of the KSPSolve and MatMult, but I think I need
more granular time information to see a further breakdown of time spent within my routines. I would like to hear if anyone has any recommendations on obtaining this information?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Best<u></u><u></u></p>
<p class="MsoNormal">Parv Khurana<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">PETSc database options used for solve:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">-ksp_monitor # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-ksp_type preonly # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-log_view # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_coarsen_type hmis # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_grid_sweeps_all 2 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_interp_type ext+i # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_max_iter 1 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_P_max 2 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_print_debug 1 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_print_statistics 1 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_relax_type_all sor/jacobi # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_strong_threshold 0.7 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_boomeramg_truncfactor 0.3 # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_hypre_type boomeramg # (source: file)<u></u><u></u></p>
<p class="MsoNormal">-pc_type hypre # (source: file)<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">PETSc log_view output:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">------------------------------------------------------------------------------------------------------------------------<u></u><u></u></p>
<p class="MsoNormal">Event Count Time (sec) Flop --- Global --- --- Stage ---- Total<u></u><u></u></p>
<p class="MsoNormal"> Max Ratio Max Ratio Max Ratio Mess AvgLen Reduct %T %F %M %L %R %T %F %M %L %R Mflop/s<u></u><u></u></p>
<p class="MsoNormal">------------------------------------------------------------------------------------------------------------------------<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">--- Event Stage 0: Main Stage<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">BuildTwoSided 1 1.0 9.6900e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatMult 14 1.0 1.6315e-01 1.0 1.65e+08 1.0 0.0e+00 0.0e+00 0.0e+00 0 86 0 0 0 0 86 0 0 0 1011<u></u><u></u></p>
<p class="MsoNormal">MatConvert 1 1.0 4.3092e-01 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatAssemblyBegin 3 1.0 3.1680e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatAssemblyEnd 3 1.0 9.4178e-01 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatGetRowIJ 2 1.0 1.1630e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatSetPreallCOO 1 1.0 3.2132e-01 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">MatSetValuesCOO 1 1.0 2.9956e-02 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">VecNorm 28 1.0 1.3981e-02 1.0 2.10e+07 1.0 0.0e+00 0.0e+00 0.0e+00 0 11 0 0 0 0 11 0 0 0 1499<u></u><u></u></p>
<p class="MsoNormal">VecSet 13 1.0 6.5185e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">VecAYPX 14 1.0 7.1511e-03 1.0 5.24e+06 1.0 0.0e+00 0.0e+00 0.0e+00 0 3 0 0 0 0 3 0 0 0 733<u></u><u></u></p>
<p class="MsoNormal">VecAssemblyBegin 14 1.0 1.3998e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">VecAssemblyEnd 14 1.0 4.2560e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">VecScatterBegin 14 1.0 8.2761e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">VecScatterEnd 14 1.0 4.4665e-05 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">SFSetGraph 1 1.0 6.5993e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">SFSetUp 1 1.0 7.9212e-03 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">SFPack 14 1.0 5.8690e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">SFUnpack 14 1.0 4.3370e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">KSPSetUp 1 1.0 2.4910e-06 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">KSPSolve 14 1.0 2.1922e+00 1.0 1.91e+08 1.0 0.0e+00 0.0e+00 0.0e+00 0 100 0 0 0 0 100 0 0 0 87<u></u><u></u></p>
<p class="MsoNormal">PCSetUp 1 1.0 1.3165e+00 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">PCApply 14 1.0 1.9990e+00 1.0 0.00e+00 0.0 0.0e+00 0.0e+00 0.0e+00 0 0 0 0 0 0 0 0 0 0 0<u></u><u></u></p>
<p class="MsoNormal">------------------------------------------------------------------------------------------------------------------------<u></u><u></u></p>
</div>
</div>
</div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><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><div><br></div><div><a href="https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!dcXXAGiIt9SePznRQ1Iqc5whnzG7XtxblsB2LTCG5oT4ueID0jjr9B111lWItGe3riTGdRgPQsKbWl0qDv7e$" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>