<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="">This way you are running mpiexec.hydra under valgrind. You want to run instead<div class=""><br class=""></div><div class=""><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 16px;" class="">mpiexec.hydra -n 1 </span><font face="Calibri, Helvetica, sans-serif" size="3" class="">valgrind --track-origins=yes --leak-check=full --fullpath-after= ./trashy.exe</font><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Apr 9, 2021, at 12:11 PM, dazza simplythebest <<a href="mailto:sayosale@hotmail.com" class="">sayosale@hotmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Calibri, Helvetica, sans-serif; font-size: 16px; 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; float: none; display: inline !important;" class="">valgrind --track-origins=yes --leak-check=full mpiexec.hydra -n 1 ./trashy.exe</span></div></blockquote></div><br class=""></div></body></html>