[gmx-users] Re: Possible bug: energy changes with the number of nodes for energy minimization

2012-05-30 Thread Stephen Cox
see where the energy was changing)! I guess this means I should use the serial version for meaningful binding energies. It also looks like it will be fixed for version 4.5.6 Thank you again, I really appreciate your help. Steve > On 30/05/2012 9:42 PM, Stephen Cox wrote: > > Hi Justin,

[gmx-users] Re: Possible bug: energy changes with the number of nodes for energy minimization

2012-05-30 Thread Stephen Cox
Hi Justin, Thanks for getting back and posting the links. > On 5/29/12 6:22 AM, Stephen Cox wrote: > > Hi, > > > > I'm running a number of energy minimizations on a clathrate supercell > and I get > > quite significantly different values for the total energy d

[gmx-users] Possible bug: energy changes with the number of nodes for energy minimization

2012-05-29 Thread Stephen Cox
Hi, I'm running a number of energy minimizations on a clathrate supercell and I get quite significantly different values for the total energy depending on the number of mpi processes / number of threads I use. More specifically, some numbers I get are: #cores energy 1-2.4193640920269

[gmx-users] GROMACS stalls for NPT simulation when using -npme and -dd flags

2012-03-13 Thread Stephen Cox
h different compilers (and different system sizes). It would be good if anybody familiar with the source could take a look, or if anybody knows any compiler flags that would prevent memory leak. Thanks, Steve On 9 March 2012 13:32, Stephen Cox wrote: > > > On 9 March 2012 13:03, g

[gmx-users] Re: gmx-users Digest, Vol 95, Issue 60

2012-03-12 Thread Stephen Cox
all-atomic methane. This problem has occurred for me on different architectures and with different compilers (and different system sizes). It would be good if anybody familiar with the source could take a look, or if anybody knows any compiler flags that would prevent memory leak. Thanks, Steve

[gmx-users] Re: gmx-users Digest, Vol 95, Issue 60

2012-03-09 Thread Stephen Cox
ls for NPT simulation when using >-npme and -dd flags > To: Discussion list for GROMACS users > Message-ID: <4f59fab9.6010...@anu.edu.au> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 9/03/2012 9:43 PM, Stephen Cox wrote: > > Dear users

[gmx-users] GROMACS stalls for NPT simulation when using -npme and -dd flags

2012-03-09 Thread Stephen Cox
Dear users, I'm trying to run an isotropic NPT simulation on a cubic cell containing TIP4P/ice water and methane. I'm using the Parrinello-Rahman barostat. I've been playing around with the different decomposition flags of mdrun to get better performance and scaling and have found that the standar