<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi all,<div class=""><br class=""></div><div class="">Here are the minutes from today’s meeting.</div><div class=""><br class=""></div><div class="">Chair: Sam<br class="">Minutes: Leo<br class=""><br class="">Attending: Sam, Leo, Peter, Cheng-Hsin, Johnny, Keith, Roland, Zach, Yosef<br class=""><br class="">ET Release<br class=""> - Progress is being made, fixing failures in clusters that<br class=""> are not frequently used.<br class=""> - Odd compilation error in Summit cluster that hasn't<br class=""> been fixed yet.<br class=""> - Roland will contact contributors.<br class=""> - All galery examples are running.<br class=""> - Peter will re-run tests on Sunrise.<br class=""><br class="">Extension of PreSync's Capabilities with Carpet<br class=""> - PreSync is used to fill in ghostzones and apply BCs<br class=""> automatically whenever needed.<br class=""> - Extend to fill in "auxiliary" quantities automatically<br class=""> when access is requested. For example, if a thorn evolves<br class=""> the BSSN variables, then it provides a function to compute<br class=""> the ADMBase variables from the BSSN variables and PreSync<br class=""> would schedule this function appropriately whenever another<br class=""> function needs to access the ADMase variables.<br class=""> - CarpetX has some support for gridfunction dependencies, which<br class=""> could potentially guide this process.<br class=""> - There are subtleties that could lead to circular logic, so<br class=""> care must be taken when doing this.<br class=""> - First idea is to not deal with more complicated cases where<br class=""> e.g., a function adds something to a gridfunction (like KO<br class=""> dissipation). Instead, the new feature would fill in gridfunctions<br class=""> for which a "READ" was requested but the gridfunctions are<br class=""> not valid anywhere.<br class=""><br class="">Open Tickets<br class=""> - No warning printed by the Perl scripts for ambiguous<br class=""> READ/WRITES since it is unlikely users will attempt to use<br class=""> the old PreSync standard. Zach suggests: would be nice to have<br class=""> the option of being more verbose instead of completely removing<br class=""> the warning, if possible. Roland says: maybe we can give the<br class=""> Perl script another option, e.g. "Picky" (Verbose is already<br class=""> taken) so that it can print the warnings if requested.<br class=""> - There is a ticket ready for review which prevents PreSync from<br class=""> syncing coarser refinement levels if those have already been<br class=""> synced previously.<br class=""> - There's an interface error in some of the ADMBase functions<br class=""> where read-only gridfunctions are maked as "OUT". Sam says:<br class=""> changing "OUT" to "IN" fixes the interface. Fix is working<br class=""> on local machines but needs more testing.<br class=""> - cctk_time and cctk_deltas are wrong sometimes and a fix has<br class=""> been implemented that needs further review.<br class=""> - With PreSync, CarpetRegrid does not change the validity of<br class=""> the gridfunctions after a regrid, which leads to problems.<br class=""> The logic should be: after a regrid all gridfunctions are<br class=""> valid nowhere. Then the gridfunctions that support prolongation<br class=""> can be flagged as valid in the interior after prolongation.<br class=""> Everything else should remain invalid everywhere until something<br class=""> else sets it.<br class=""><br class="">Unanswered Questions in the Mailing List<br class=""> None.<br class=""><br class="">Next Chair: Leo<br class="">Next Minutes: Johnny</div><div class=""><br class=""></div><div class="">Cheers,</div><div class="">Leo<br class=""><div class="">
<meta charset="UTF-8" class=""><div dir="auto" style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div dir="auto" style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><font face="Menlo" class=""><br class="Apple-interchange-newline"><br class=""></font></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; text-align: start; text-indent: 0px;"><font face="Menlo" class="">------<br class="">Leonardo R. Werneck, Ph.D.<br class="">Postdoctoral researcher<br class="">Office EP 314 | Department of Physics | University of Idaho<br class="">875 Perimeter Dr. MS 0903</font></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; text-align: start; text-indent: 0px;"><span style="font-family: Menlo;" class="">Moscow, ID 83844-0903, USA</span></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; text-align: start; text-indent: 0px;"><font face="Menlo" class=""><a href="mailto:leonardo@uidaho.edu" class="">leonardo@uidaho.edu</a></font></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; text-align: start; text-indent: 0px;"><font face="Menlo" class=""><a href="https://leowerneck.github.io" class="">https://leowerneck.github.io</a></font></div></div></div>
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