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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 dir="ltr"><div class="gmail_default"><font size="4" style="font-family:arial,sans-serif">Hello,</font></div><div class="gmail_default"><div class="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="gmail_default"><font size="4" style="font-family:arial,sans-serif"><br></font></div><div class="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="gmail_default"><font size="4" style="font-family:arial,sans-serif"><br></font></div><div class="gmail_default"><font size="4" style="font-family:arial,sans-serif"><br></font></div><div class="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="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="gmail-western"><b>1-
export </b></code><code class="gmail-western"><b>LD_PRELOAD=/</b></code><code class="gmail-western"><b>path/to</b></code><code class="gmail-western"><b>/lib/libdarshan.s</b></code><code class="gmail-western"><b>o</b></code><code class="gmail-western"><font color="#000000"><b><span style="background:transparent"> </span></b></font></code></font></p>
<pre class="gmail-western" style="text-align:left;background:transparent"><font size="4" style="font-family:arial,sans-serif"><code class="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="gmail-western" style="text-align:left;background:transparent"><font size="4" style="font-family:arial,sans-serif"><code class="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="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="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>
</div><div class="gmail_default"><font size="4" style="font-family:arial,sans-serif">Would you please help me understand the issue?</font></div><div class="gmail_default"><font size="4" style="font-family:arial,sans-serif">Sincerely <br></font></div><font color="#888888" size="4"><div class="gmail_default"><span style="font-family:arial,sans-serif">Zoya Masih</span></div></font></div></div>