Re: [gmx-users] default -rdd with distance restraints seems too large

2013-10-17 Thread XAvier Periole
Hi Chris, I mentioned that PS would have helped! I am sorry about the confusion. I should have been more clear. I guess you have not followed the particle decomposition threads lately :)) The PD option has been associated some serious issues lately … notably I noticed it does not work well i

[gmx-users] default -rdd with distance restraints seems too large

2013-10-17 Thread Christopher Neale
Thanks for the hint XAvier. Unfortunately, I get crashes with particle decomposition (see below). If I use either DD or PD, I can run on up to 2 threads without adjusting -rdd or -dds. I can only use >2 thread with DD if I set -rdd 2.8. If I try to use more than 2 threads with PD, I get lincs

Re: [gmx-users] default -rdd with distance restraints seems too large

2013-10-17 Thread XAvier Periole
Yes it is a pity! But particle decomposition helps :)) well helped! > > It's a shame that long distance restraints limit the parallalization so much, > but it is understandable. Thanks for helping me with this. > > Chris. > > -- original message -- > > Initializing Domain Decomposition on

[gmx-users] default -rdd with distance restraints seems too large

2013-10-17 Thread Christopher Neale
Indeed, sorry that I didn't notice that, Mark. Looks as if the two-body bonded interaction gets multiplied by 1.1/0.8 so I suppose that this is working as it should. It's a shame that long distance restraints limit the parallalization so much, but it is understandable. Thanks for helping me wit

Re: [gmx-users] default -rdd with distance restraints seems too large

2013-10-17 Thread Mark Abraham
Hi, The log file gives a breakdown of how the minimum cell size was computed. What does it say? Mark On Oct 17, 2013 5:17 AM, "Christopher Neale" wrote: > I have a system that also uses a set of distance restraints > > The box size is: >7.12792 7.12792 10.25212 > > When running mdrun -nt

[gmx-users] default -rdd with distance restraints seems too large

2013-10-16 Thread Christopher Neale
I have a system that also uses a set of distance restraints The box size is: 7.12792 7.12792 10.25212 When running mdrun -nt 8, I get: Fatal error: There is no domain decomposition for 8 nodes that is compatible with the given box and a minimum cell size of 3.62419 nm However, the larges