Re: [gmx-users] ask for help on MARTINI SIMULATION OF POPC lipids with polarisable water

2011-02-09 Thread wezhao
Hi XAvier,

Thanks for your help! I will try it now.
Have a great day!
Wei

>
> Hi Wei,
>
> What you need here is to increase the rdd to 1.4/1.5 nm. You can do that
> using the -rdd option of mdrun.
>
> Turning pme on would have no effect.
>
> XAvier.
>
> On Feb 8, 2011, at 20:56, wez...@ucalgary.ca wrote:
>
>> Dear All,
>>
>> I have performed a simulation of POPC with polarisable water model in
>> presence of 0.2 mol CaCl2 based on MARTINI CG model. I used shift for
>> the
>> electrostatic interactions and the job was done on a 8-core node with
>> domain decomposition 2 2 2. The lipid bilayer consists of 512 lipid and
>> 16000 water. However, the simulation crashed after about 100 ns.
>>
>> The error message is given by:
>> DD  step 5103999 load imb.: force  5.1%
>>
>>   Step   Time Lambda
>>5104000   102080.00.0
>>
>>   Energies (kJ/mol)
>>   Bond   G96AngleLJ (SR)   Coulomb (SR)
>> Potential
>>1.18271e+046.29597e+04   -4.34519e+05   -3.22701e+05
>> -6.82433e+05
>>Kinetic En.   Total EnergyTemperature Pressure (bar)  Cons. rmsd
>> ()
>>1.66874e+05   -5.15560e+053.10498e+021.50257e+01
>> 1.85079e-04
>>
>>
>> Not all bonded interactions have been properly assigned to the domain
>> decomposition cells
>>
>> A list of missing interactions:
>>G96Angle of  19936 missing  1
>>
>> Molecule type 'POPC'
>> the first 10 missing interactions, except for exclusions:
>>G96Angle atoms456  global  3696  3697  3698
>>
>> ---
>> Program mdrun_s_mpi, VERSION 4.0.7
>> Source code file: domdec_top.c, line: 341
>>
>> Fatal error:
>> 1 of the 56736 bonded interactions could not be calculated because some
>> atoms involved moved further apart than the multi-body cut-off distance
>> (1
>> nm) or the two-body cut-off distance (1.2 nm), see option -rdd, for
>> pairs
>> and tabulated bonds also see option -ddcheck
>>
>> I turned on PME for testing, but it crashed within 1 ns. Could somebody
>> give me some suggestion on how to solve this problem?
>> Thanks!
>>
>> Wei Zhao
>>
>>
>> --
>> gmx-users mailing listgmx-users@gromacs.org
>> http://lists.gromacs.org/mailman/listinfo/gmx-users
>> Please search the archive at
>> http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
>> Please don't post (un)subscribe requests to the list. Use the
>> www interface or send it to gmx-users-requ...@gromacs.org.
>> Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
> --
> gmx-users mailing listgmx-users@gromacs.org
> http://lists.gromacs.org/mailman/listinfo/gmx-users
> Please search the archive at
> http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
> Please don't post (un)subscribe requests to the list. Use the
> www interface or send it to gmx-users-requ...@gromacs.org.
> Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
>
>
>


-- 
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/Support/Mailing_Lists


Re: [gmx-users] ask for help on MARTINI SIMULATION OF POPC lipids with polarisable water

2011-02-09 Thread XAvier Periole

Hi Wei,

What you need here is to increase the rdd to 1.4/1.5 nm. You can do that using 
the -rdd option of mdrun. 

Turning pme on would have no effect. 

XAvier. 

On Feb 8, 2011, at 20:56, wez...@ucalgary.ca wrote:

> Dear All,
> 
> I have performed a simulation of POPC with polarisable water model in
> presence of 0.2 mol CaCl2 based on MARTINI CG model. I used shift for the
> electrostatic interactions and the job was done on a 8-core node with
> domain decomposition 2 2 2. The lipid bilayer consists of 512 lipid and
> 16000 water. However, the simulation crashed after about 100 ns.
> 
> The error message is given by:
> DD  step 5103999 load imb.: force  5.1%
> 
>   Step   Time Lambda
>5104000   102080.00.0
> 
>   Energies (kJ/mol)
>   Bond   G96AngleLJ (SR)   Coulomb (SR)  Potential
>1.18271e+046.29597e+04   -4.34519e+05   -3.22701e+05   -6.82433e+05
>Kinetic En.   Total EnergyTemperature Pressure (bar)  Cons. rmsd ()
>1.66874e+05   -5.15560e+053.10498e+021.50257e+011.85079e-04
> 
> 
> Not all bonded interactions have been properly assigned to the domain
> decomposition cells
> 
> A list of missing interactions:
>G96Angle of  19936 missing  1
> 
> Molecule type 'POPC'
> the first 10 missing interactions, except for exclusions:
>G96Angle atoms456  global  3696  3697  3698
> 
> ---
> Program mdrun_s_mpi, VERSION 4.0.7
> Source code file: domdec_top.c, line: 341
> 
> Fatal error:
> 1 of the 56736 bonded interactions could not be calculated because some
> atoms involved moved further apart than the multi-body cut-off distance (1
> nm) or the two-body cut-off distance (1.2 nm), see option -rdd, for pairs
> and tabulated bonds also see option -ddcheck
> 
> I turned on PME for testing, but it crashed within 1 ns. Could somebody
> give me some suggestion on how to solve this problem?
> Thanks!
> 
> Wei Zhao
> 
> 
> -- 
> gmx-users mailing listgmx-users@gromacs.org
> http://lists.gromacs.org/mailman/listinfo/gmx-users
> Please search the archive at 
> http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
> Please don't post (un)subscribe requests to the list. Use the 
> www interface or send it to gmx-users-requ...@gromacs.org.
> Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
--
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
Please don't post (un)subscribe requests to the list. Use the
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/Support/Mailing_Lists


[gmx-users] ask for help on MARTINI SIMULATION OF POPC lipids with polarisable water

2011-02-08 Thread wezhao
Dear All,

I have performed a simulation of POPC with polarisable water model in
presence of 0.2 mol CaCl2 based on MARTINI CG model. I used shift for the
electrostatic interactions and the job was done on a 8-core node with
domain decomposition 2 2 2. The lipid bilayer consists of 512 lipid and
16000 water. However, the simulation crashed after about 100 ns.

The error message is given by:
DD  step 5103999 load imb.: force  5.1%

   Step   Time Lambda
5104000   102080.00.0

   Energies (kJ/mol)
   Bond   G96AngleLJ (SR)   Coulomb (SR)  Potential
1.18271e+046.29597e+04   -4.34519e+05   -3.22701e+05   -6.82433e+05
Kinetic En.   Total EnergyTemperature Pressure (bar)  Cons. rmsd ()
1.66874e+05   -5.15560e+053.10498e+021.50257e+011.85079e-04


Not all bonded interactions have been properly assigned to the domain
decomposition cells

A list of missing interactions:
G96Angle of  19936 missing  1

Molecule type 'POPC'
the first 10 missing interactions, except for exclusions:
G96Angle atoms456  global  3696  3697  3698

---
Program mdrun_s_mpi, VERSION 4.0.7
Source code file: domdec_top.c, line: 341

Fatal error:
1 of the 56736 bonded interactions could not be calculated because some
atoms involved moved further apart than the multi-body cut-off distance (1
nm) or the two-body cut-off distance (1.2 nm), see option -rdd, for pairs
and tabulated bonds also see option -ddcheck

I turned on PME for testing, but it crashed within 1 ns. Could somebody
give me some suggestion on how to solve this problem?
Thanks!

Wei Zhao


-- 
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
Please search the archive at 
http://www.gromacs.org/Support/Mailing_Lists/Search before posting!
Please don't post (un)subscribe requests to the list. Use the 
www interface or send it to gmx-users-requ...@gromacs.org.
Can't post? Read http://www.gromacs.org/Support/Mailing_Lists