<div dir="ltr">Hello PETSc listserv,<div><br></div><div>This is an inquiry about code structure and the appropriateness of using SNES for a specific problem.
I've found PETSc powerful and quite useful for my other problems, but for this application I'm concerned about computational overhead.
Our setup involves many thousands of independent calls to the nonlinear solver on small subproblems, i.e. 2<=d.o.f.<=9. Speed of execution is the primary concern. Now straight to my questions:</div><div><ul><li>does it even make sense to use PETSc for a problem like this? Would it be like using a nuclear reactor to warm a quesadilla?
</li><li>if it does make sense, is it better to create/destroy the SNES structures with each new subproblem, OR to create the structures once and modify them every time?</li></ul><div>Best,</div><div>Alexander</div><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8px"><span style="font-family:arial,sans-serif">Alexander</span><span style="font-family:arial,sans-serif"> </span><span style="font-family:arial,sans-serif">Prescott</span><br></div><div style="font-size:12.8px"><span style="font-family:arial,sans-serif"><a href="mailto:alexprescott@email.arizona.edu" target="_blank">alexprescott@email.arizona.edu</a></span></div><div style="font-size:12.8px"><div style="font-family:arial,sans-serif"><span>PhD</span> <span>Candidate</span>, The University of Arizona</div><div style="font-family:arial,sans-serif">Department of Geosciences</div><div style="font-family:arial,sans-serif">1040 E. 4th Street</div><div style="font-family:arial,sans-serif">Tucson, AZ, 85721</div></div></div></div></div></div></div></div></div></div>