Dear CP2K Developers/Community,<div><br></div><div>I have attached an input file which I believe shows an example of a possible memory leak in CP2K. It is a typical NVT DFT simulation of molten MgCl2 with PBE-D3 dispersion corrections. </div><div><p>I have tried well-tested CP2K builds on our local cluster (v6.1, v8.1, v2022.1), our university supercomputer (v6.1, v8.1), and even the system-wide installations of CP2K on Cori at Oak Ridge National Lab (v8.1 and v9.1) and memory usage grows linear with time until either the node locks up/dies from insufficient memory usage or the job dies from maximum walltime (ORNL). I've done enough testing that I can almost tell how many MD steps before the job will die for a given machine with X amount of RAM and Y amount of MPI ranks. <br><br> I normally wouldn’t email about things like this but I’ve tried multiple combinations (w/unit-testing) of GCC, OpenMPI, OpenBLAS/MKL, etc. and nothing seems to work. I am hoping this is simply an input file issue or my own error.</p><p><br></p>
<p>Any help will be much appreciated.<br><br>Matthew S. Emerson<br>Margulis Research Group<br>Department of Chemistry<br>The University of Iowa</p></div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "cp2k" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/0c20a8f2-3658-4429-a2e9-7f4aa0edb321n%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/0c20a8f2-3658-4429-a2e9-7f4aa0edb321n%40googlegroups.com</a>.<br />