<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Aug 19, 2020, at 8:06 PM, Manav Bhatia <<a href="mailto:bhatiamanav@gmail.com" class="">bhatiamanav@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div class=""><blockquote type="cite" class="" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;"><div class=""><div class="">Can you try running with -matstash_legacy?<br class=""></div></div></blockquote><div style="caret-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;" class=""><br class=""></div><div style="caret-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;" class="">Will do and report results shortly. </div></div></div><br class="Apple-interchange-newline"></div></blockquote></div><div class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Monaco; color: rgb(16, 16, 16); background-color: rgba(255, 255, 255, 0.85);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">-ksp_type gmres -pc_type gamg -mat_block_size 3 -mg_levels_ksp_max_it 4 -ksp_monitor -ksp_converged_reason -ksp_view -matstash_legacy</span></div><div style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; font-family: Monaco; color: rgb(16, 16, 16); background-color: rgba(255, 255, 255, 0.85);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class="">Running with this option results in hanging of the processes in MatAssemblyEnd. Attached is a screenshot. </div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="FD0E3884-C004-4D5D-AD64-4F43A0E83FDC" width="1012" height="717" src="cid:60DB7D16-CCDC-4BDE-B06E-B8E868CE8182" class=""></div></body></html>