<div>Dear All,</div><div><br>I'm trying to estimate required time for doing of ab initio MD simulation using CP2K since I need this info for making an application of supercomputer time (HECToR).</div><div><br>My interest system are about 10,000 atoms (hydrocarbon molecules) and detail info for HECToR machine is as following:</div><div> </div><div>1. HECToR is a connection of 2816 nodes.<br>2. Each node has 32 cores and 32
GBytes of RAM, which it is shared by the 32 cores.<br>3. Each core is of type
AMD Opteron 2.3GHz <i>Interlagos</i> (The latest AMD Opteron family).<br>4. So
total cores are: 32 cores per node * 2816 nodes = 90112 cores.<br>5. And total
distributed RAM memory is: 32 GBytes per node * 2816 nodes = 90122 GBytes
distributed RAM Memory. <br>6. The speed connection between nodes has an MPI
point-to-point bandwidth of 5 GB/s or more (the best available on the
market).<br></div><div> </div><div>I just wanted to know how long CPU time would be necessary for performing ab initio MD simulations (with PM6 and DFT), approximately.</div><div> </div><div>Will it change significantly, if I can use FMO-MD technique?</div><div><br>Time of simulation is considered to be about 100 ps.</div><div><br>I would be appreciated if anybody help me for this estimation.</div><div> </div><div>Best wishes</div><div> </div><div>Rasoul Nasiri, Ph.D<br>Post-Doc Research Fellow<br>Sir Harry Ricardo
Laboratories<br>School of Computing, Engineering and Mathematics<br>University
of Brighton<br>Cockcroft Building, room C214, Lewes Road<br>Brighton BN2 4GJ,
UNITED KINGDOM<br>Tel: +44(0)1273 642330<br>e-mail :
R.Na...@brighton.ac.uk<br>Website:
<a href="http://www.brighton.ac.uk/shrl/staff/nasiri.ph">http://www.brighton.ac.uk/shrl/staff/nasiri.ph</a></div><div> </div><div> </div><div> </div>