<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal">Hi Brent,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Unfortunately, unless you can provide us with a reproducer, there is little we can do to find the issue.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<p class="MsoNormal">-- <br>
Hui Zhou<o:p></o:p></p>
</div>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Brent Morgan via devel <devel@mpich.org><br>
<b>Date: </b>Wednesday, January 13, 2021 at 3:20 AM<br>
<b>To: </b>devel@mpich.org <devel@mpich.org><br>
<b>Cc: </b>Brent Morgan <brent.taylormorgan@gmail.com>, Robert Katona <robert.katona@hotmail.com><br>
<b>Subject: </b>[mpich-devel] mpich3 error<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello mpich dev support,<br>
<br>
I am receiving the following error in my MPI implementation, when I use 110+ threads.<br>
<br>
Assertion failed in file src/mpid/ch3/channels/nemesis/src/ch3_progress.c at line 567: !vc_ch->recv_active<br>
0x7f7f870937 ???<br>
???:0<br>
0x7f7f870957 ???<br>
???:0<br>
0x7f7f8089cf ???<br>
???:0<br>
0x7f7f854983 ???<br>
???:0<br>
0x7f7f75a4f3 ???<br>
???:0<br>
0x7f7f7cd8bf ???<br>
???:0<br>
0x7f7f7cde0f ???<br>
???:0<br>
0x7f7f78d577 ???<br>
???:0<br>
0x7f7f6ea6cb ???<br>
???:0<br>
0x7f7f6ea8f3 ???<br>
???:0<br>
0x7f7f78c7ff ???<br>
???:0<br>
0x7f7f6e9e6f ???<br>
???:0<br>
0x7f7f6e9eb7 ???<br>
???:0<br>
0x7f7f6ea033 ???<br>
???:0<br>
0x55793fe47b ???<br>
???:0<br>
0x55793f96b3 ???<br>
???:0<br>
0x7f7f29908f ???<br>
???:0<br>
0x55793f9a9b ???<br>
???:0<br>
internal ABORT - process 171<o:p></o:p></p>
<div>
<p class="MsoNormal">Does this give a clue as to what I may be doing wrong? Thank you,<o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Best,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Brent<o:p></o:p></p>
</div>
</div>
</div>
</div>
</body>
</html>