<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">To whom may care<div class=""><br class=""><div class="">I am running example12 in pw with QE6.4.1 on MacOSX10.14.6. </div><div class="">The example is about noncollinear/spin-orbit case with DFT+U and Ultrasoft pseudopotentials. </div><div class="">I run </div><div class="">./run_example</div><div class="">In the terminal and get errors like this </div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Program received signal SIGSEGV: Segmentation fault - invalid memory reference.</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0); min-height: 13px;" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Backtrace for this error: </span></div></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures;" class=""><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">And a long list for this backtrace (if it’s important, I will post it next time) </font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">And I have this at the bottom of the terminal</font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">mpirun noticed that process rank 3 with PID 0 on node nbp-146-110 exited on signal 11 (Segmentation fault: 11).</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">--------------------------------------------------------------------------</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Error condition encountered during test: exit status = 139</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(0, 255, 0);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">This error occurs whenever the calculation starts scf </font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">As additional information, I compile the QE with the fftw3 come with octave, otherwise it wouldn’t work. </font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class=""><br class=""></font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">Thanks a lot for whom would like to help! I’ll be so grateful!</font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class=""><br class=""></font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class="">Shilong Yang</font></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Student at Chemistry and Chemical Biology Department, </span></font><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">Rutgers University</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="background-color: rgba(255, 255, 255, 0);" class=""><span style="font-family: Helvetica, Arial, FreeSans, sans-serif;" class="">123 Bevier Rd.</span><br style="font-family: Helvetica, Arial, FreeSans, sans-serif;" class=""><span style="font-family: Helvetica, Arial, FreeSans, sans-serif;" class="">Piscataway, NJ 08854, US</span></span></div></div></span></div></div></body></html>