<p>Dear CP2K developers,</p>
<p> </p>
<p>I downloaded the latest 7.1 version and used
toolchain to install the libraries libint, libxc, and libxsmm with the following command:</p>
<p> </p>
<p>$ ./install_cp2k_toolchain.sh --enable-omp
--with-libxc=install --with-libint=install --with-fftw=system
--with-libxsmm=install --with-mkl=system --with-elpa=no
--with-cmake=system --with-openblas=no --with-hdf5=system</p>
<p> </p><p>After the successfull installations, I used the resulting local.popt to make an
executable (without any further modifications).</p><p>The used compilers were gcc, g++, and mpif90, which in my case is Intel version 2019.5.281, and not OpenMPI.</p>
<p> </p>
<p>Running relaxation simulations of molecules on
slab surfaces, I experience an increasing memory usage.</p>
<p>Sometimes the simulation relaxes fast enough, so
that I don’t run out of memory.</p>
<p>Sometimes I run out of memory before the
relaxation finishes.</p>
<p>I call cp2k_shell.popt, since I run my relaxations
via an ase interface (but I guess it doesn’t matter, since there is no shell
binary, but just a link of the shell to cp2k.popt).</p>
<p> </p>
<p>Does anyone else experience memory issues? I have the same issue on a HPC center, where a system admin installed the 7.1 version for me, and here my jobs also crash due to running out of memory. </p><p>Does someone have a suggestion as to what the
problem is or how to avoid it?</p>
<p>Is there maybe a compiler flag/option I should
avoid or put in?</p><p> <br></p>
<p> </p>
<p>Best regards,</p>
<p>Paul Schwarz</p>