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Hi Zoya,</div>
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Did you run the <code>darshan-mk-log-dirs.pl </code>script that installs with darshan-runtime? That has to be run first to format the output log directory —when using
<code>--log-path </code>option to Darshan, it will output files in year/month/day subdirectories in the file path you give it.</div>
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Thanks,</div>
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--Shane</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Darshan-users <darshan-users-bounces@lists.mcs.anl.gov> on behalf of Zoya Masih <zoyamasih92@gmail.com><br>
<b>Sent:</b> Monday, November 18, 2024 2:51 AM<br>
<b>To:</b> darshan-users@lists.mcs.anl.gov <darshan-users@lists.mcs.anl.gov><br>
<b>Subject:</b> [Darshan-users] darshan_library_warning</font>
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Hello, I have installed Darshan version 3. 4. 6 on an HPC cluster with the following configuration: ./configure --enable-mmap-logs --with-log-path=/mnt/lustre-grete/usr/u11509/DARSHAN/darshan-logs --with-jobid-env=PBS_JOBID --prefix=/path/to/DARSHAN/</div>
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<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">Hello,</font></div>
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<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">I have installed Darshan version 3.4.6 on an HPC cluster with the following configuration:
<br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif"><br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">./configure --enable-mmap-logs --with-log-path=/mnt/lustre-grete/usr/u11509/DARSHAN/darshan-logs --with-jobid-env=PBS_JOBID --prefix=/path/to/DARSHAN/ CC=mpicc<br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif"><br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif"><br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">The installation of darshan-runtime and darshan-util is correctly done.
<br>
</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">Then I followed the instructions:<br>
</font><font size="4" style="font-family:arial,sans-serif"><span></span></font>
<p align="left" style="line-height:100%; margin-bottom:0cm; background:transparent">
<font size="4" style="font-family:arial,sans-serif"><code class="x_gmail-western"><b>1- export
</b></code><code class="x_gmail-western"><b>LD_PRELOAD=/</b></code><code class="x_gmail-western"><b>path/to</b></code><code class="x_gmail-western"><b>/lib/libdarshan.s</b></code><code class="x_gmail-western"><b>o</b></code><code class="x_gmail-western"><font color="#000000"><b><span style="background:transparent">
</span></b></font></code></font></p>
<pre class="x_gmail-western" style="text-align:left; background:transparent"><font size="4" style="font-family:arial,sans-serif"><code class="x_gmail-western"><font color="#000000"><b><span style="background:transparent">2- export DARSHAN_ENABLE_NONMPI=1<br></span></b></font></code></font></pre>
<pre class="x_gmail-western" style="text-align:left; background:transparent"><font size="4" style="font-family:arial,sans-serif"><code class="x_gmail-western"><font color="#000000"><b><span style="background:transparent">3- python Hello_world</span></b></font></code>.py<br><br></font></pre>
<pre class="x_gmail-western" style="text-align:left; background:transparent"><font size="4" style="font-family:arial,sans-serif">I get this error: darshan_library_warning: unable to create log file /path/to/darshan-logs/2024/11/18/u11509_python_id1736997-1736997_11-18-34797-17835898535848440029.darshan_partial.<br></font></pre>
<pre class="x_gmail-western" style="text-align:left; background:transparent"><font size="4" style="font-family:arial,sans-serif">The code is siply a hello world code, and python package doesn't have any problem. The permissions are also met.
</font></pre>
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<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">Would you please help me understand the issue?</font></div>
<div class="x_gmail_default"><font size="4" style="font-family:arial,sans-serif">Sincerely
<br>
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<font color="#888888" size="4">
<div class="x_gmail_default"><span style="font-family:arial,sans-serif">Zoya Masih</span></div>
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