<html xmlns:v="urn:schemas-microsoft-com:vml" 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:10.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
span.EmailStyle21
{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><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you Franky, I will give it a shot.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:11.0pt">From:</span></b><span style="font-size:11.0pt"> slurm-users <slurm-users-bounces@lists.schedmd.com>
<b>On Behalf Of </b>Franky Backeljauw<br>
<b>Sent:</b> Thursday, November 16, 2023 3:14 PM<br>
<b>To:</b> Slurm User Community List <slurm-users@lists.schedmd.com>; slurm-users@schedmd.com<br>
<b>Subject:</b> [EXT] Re: [slurm-users] ulimits<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div id="APLWarningText">
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" align="left">
<tbody>
<tr>
<td width="100%" style="width:100.0%;background:#E0E0E0;padding:0in 0in 0in 0in">
<p class="MsoNormal" style="mso-element:frame;mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly">
<b><span style="font-size:11.0pt;color:red">APL external email warning: </span></b><span style="font-size:11.0pt;color:black">Verify sender
<a href="mailto:slurm-users-bounces@lists.schedmd.com">slurm-users-bounces@lists.schedmd.com</a> before clicking links or attachments</span><span style="font-size:11.0pt"><o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p><span lang="NL-BE" style="color:black"> </span><span lang="NL-BE"><o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">Hi Vlad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">If you are using the systemd services, then you can change the value in the file /usr/lib/systemd/system/slurmd.service, e.g.:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">LimitNOFILE=131072<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">LimitMEMLOCK=infinity<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Courier New"">LimitSTACK=infinity<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Courier New"">LimitMSGQUEUE=12345678<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">See <a href="https://www.baeldung.com/linux/ulimit-limits-systemd-units">
https://www.baeldung.com/linux/ulimit-limits-systemd-units</a> for the list of possibilities…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">-- Kind regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Franky<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div id="mail-editor-reference-message-container">
<div>
<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">Van:
</span></b><span style="font-size:12.0pt;color:black">slurm-users <<a href="mailto:slurm-users-bounces@lists.schedmd.com">slurm-users-bounces@lists.schedmd.com</a>> namens Ozeryan, Vladimir <<a href="mailto:Vladimir.Ozeryan@jhuapl.edu">Vladimir.Ozeryan@jhuapl.edu</a>><br>
<b>Datum: </b>donderdag, 16 november 2023 om 21:05<br>
<b>Aan: </b><a href="mailto:slurm-users@schedmd.com">slurm-users@schedmd.com</a> <<a href="mailto:slurm-users@schedmd.com">slurm-users@schedmd.com</a>><br>
<b>Onderwerp: </b>[slurm-users] ulimits</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt">Hello everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I am having the following issue, on the compute nodes “POSIX message queues” is set to unlimited for soft and hard limits.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">However, when I do “srun -w node01 --pty bash -I” and then once I am in the node I do “cat /proc/SLURMPID/limits” it shows that “Max msgqueue size” is set to 819200 for both soft and hard limits.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Where is it being set and how do I change it?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Vlad Ozeryan <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">AMDS – AB1 Linux-Support<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><a href="mailto:Vladimir.Ozeryan@jhuapl.edu">Vladimir.Ozeryan@jhuapl.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ext. 23966<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></p>
</div>
</div>
</div>
</div>
</body>
</html>