You might find this reference handy - it has a really nice explanation for how to look at a log file Topology preparation, "What's in a log file", basic performance improvements: Mark Abraham, Session 1A <http://www.gromacs.org/Documentation/Tutorials/GROMACS_USA_Workshop_and_Conference_2013/Topology_preparation,_%22What's_in_a_log_file%22,_basic_performance_improvements:_Mark_Abraham,_Session_1A>
The “Performance:” values are a throughput measure where both values represent the same thing in different terms. In your sample below, 3.964 is the number of nanoseconds that can be simulated in 24 hours while it takes 6.054 hours to simulate 1 ns HTH On Jul 27, 2017, at 10:15 AM, Maureen Chew <maureen.c...@oracle.com> wrote: > Where is it documented how the mdrun performance metrics are calculated ? I?ve > looked here > http://manual.gromacs.org/documentation/2016/user-guide/mdrun-performance.html > > <http://manual.gromacs.org/documentation/2016/user-guide/mdrun-performance.html> > and here > http://manual.gromacs.org/documentation/2016.3/manual-2016.3.pdf > <http://manual.gromacs.org/documentation/2016.3/manual-2016.3.pdf> > > but seem to have missed explanation. > > Are the sample mdrun times below user time or real time? Generally, wall is > real time > I understand that ?Performance:? is not a linear scale but what is the scale > in the 2016.3 sample below? > > Core t (s) Wall t (s) (%) > Time: 69761.050 272.504 25600.0 > (ns/day) (hour/ns) > Performance: 3.964 6.054 > -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.
