<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 4, 2020 at 4:03 PM Jed Brown <<a href="mailto:jed@jedbrown.org" target="_blank">jed@jedbrown.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">See -ts_adapt_scale_solve_failed. '</blockquote><div><br></div><div>That's it. No C interface for this so no doc.</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">The clip provides bounds on step<br>
shortening as a result of the error indicator, but a solve failing can<br>
be more severe. The default clip allows more aggressive shortening, but<br>
I don't think we want clip to be a lower bound on solver-failure<br>
shortening. And if you shorten and still fail, you want to be able to<br>
shorten more.<br></blockquote><div><br></div><div>Not exactly sure what you are getting at here. I don't have a problem with the default, I just couldn't find where to change it. My problem gets smoother and is pretty simple and well behaved, so I don't need such an aggressive response, I think. I don't have a problem with the default, it's just that I'm trying to squeeze out some performance and I don't want it to fall back so much.</div><div><br></div><div>Thanks,</div><div>Mark</div><div><br></div><div> that the "clip" increase increment that I set (eg, 1.25), when aoos </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">
<br>
Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>> writes:<br>
<br>
> I use -ts_adapt_clip .5,1.25, with -ts_type arkimex -ts_arkimex_type 1bee.<br>
> When SNES hits max_it (in the first stage), TS seems to reduce the time<br>
> step by 4x. I don't see where that 4x comes from and how to adjust it. Is<br>
> it in the "safety" stuff?<br>
> Thanks,<br>
> Mark<br>
</blockquote></div></div>