Re: [gmx-users] vacum simulation

2013-05-02 Thread Souilem Safa
many thanks to all of you. I have decreased the time step. Simulation has
finished in right conditions


On 3 May 2013 03:06, Dr. Vitaly Chaban  wrote:

> LINCS doesn't like your system... or your system doesn't like LINCS...
>
> You can decrease the time-step as the simplest action.
>
> Dr. Vitaly Chaban
>
>
>
>
>
>
>
>
> On Thu, May 2, 2013 at 2:40 PM, Souilem Safa 
> wrote:
>
> > Dear Gromacs users ,
> >  I did the simulation of a single molecule in vacum. I have choosed 10 ns
> > which corresponds to 500 steps. I was checking the .log file
> > frequently.
> > I have noticed that the number of steps from 1938900 didn't increases.
> > When I open a new tab with the top option, I see mdrun still existing.
> > I have attached here the .log file and also some warnings that I saw when
> > steps stop at 1938900
> >
> > Step 1938969, time 3877.94 (ps)  LINCS WARNING
> > relative constraint deviation after LINCS:
> > rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
> > bonds that rotated more than 30 degrees:
> >  atom 1 atom 2  angle  previous, current, constraint length
> >  46 47   98.80.1406 3889.8669  0.1000
> >  45 46   79.4  10193.8799 10564.2393  0.1440
> >  43 44   79.60.1033 631.2256  0.1000
> >  42 45   80.1  10193.9062 11014.6123  0.1520
> >  42 43   93.50.1851 4970.4243  0.1440
> >  40 41   76.50.1009 184.9659  0.1000
> >  39 42   90.40.1819 5231.5186  0.1520
> >  39 40  100.00.1502 624.0559  0.1440
> >  37 38   97.10.1001 592.4050  0.1000
> >  36 37   81.40.1469 828.7896  0.1430
> >  35 39   88.60.1742 8071.4395  0.1520
> >  35 36   94.70.1861 8093.3452  0.1530
> >  35 34   92.9  8046.3804 17904.5762  0.1440
> >  33 45   78.0  26093.2402 332765.5000  0.1520
> >  33 34   94.6  26065.5371 330302.5625  0.1440
> >  29 30   74.4  190965.5938 1213272.  0.1360
> >  27 28   91.2  85465.0547 294693.5000  0.1430
> >  25 27   85.7  126649.9141 1143663.7500  0.1360
> >  25 26  107.7  116051.3750 805165.8125  0.1230
> >  24 29  102.8  1939418.3750 1702562.5000  0.1390
> >  24 25  101.0  1963544.3750 1402288.3750  0.1390
> >  22 23   97.9  345568.0625 1364901.  0.1530
> >  31 21  109.7  1948370.1250 7003795.5000  0.1390
> >  21 22  101.2  2108572.2500 6662917.5000  0.1390
> >  20 24   89.4  8876732. 68351760.  0.1390
> >  20 21   89.1  8780558. 67941296.  0.1390
> >  20 19   88.5  39924512. 280068256.  0.1530
> >  17 19   92.9  371385600. 509824768.  0.1530
> >  17 18   96.4  394707616. 358144416.  0.1230
> >  17 16   90.0  446916736. 883243840.  0.1360
> >  15 16   98.9  1051905920. 370290400.  0.1430
> >  14 15  100.8  520221760. 522257472.  0.1530
> >  13 14  128.2  1139173888. 3275473920.  0.1390
> >  13 11  155.0  2786396928. 3396753920.  0.1390
> >  11 12  151.7  1220930176. 2911329792.  0.1090
> >   9 11  161.5  369404096. 342864.  0.1390
> >   9 10  135.8  2190610944. 1502276608.  0.1090
> >   7  8   91.7  148944928. 1389486464.  0.1000
> >   6  9  150.6  497182528. 4613532672.  0.1390
> >   6  7  168.3  1652069120. 3562507776.  0.1360
> >   4  5  165.5  55138408. 449667456.  0.1000
> >   3  6  169.0  1702803200. 4615812096.  0.1390
> >   3  4  124.7  198457328. 2500093184.  0.1360
> >  13  1  158.1  1042088320. 3730094848.  0.1390
> > Wrote pdb files with previous and current coordinates
> > Please I need your help what should I do in this case?
> > Best regards,
> > Safa
> > --
> > gmx-users mailing listgmx-users@gromacs.org
> > http://lists.gromacs.org/mailman/listinfo/gmx-users
> > * Please search the archive at
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> >
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> http://lists.gromacs.org/mailman/listinfo/gmx-users
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Re: [gmx-users] vacum simulation

2013-05-02 Thread Dr. Vitaly Chaban
LINCS doesn't like your system... or your system doesn't like LINCS...

You can decrease the time-step as the simplest action.

Dr. Vitaly Chaban








On Thu, May 2, 2013 at 2:40 PM, Souilem Safa  wrote:

> Dear Gromacs users ,
>  I did the simulation of a single molecule in vacum. I have choosed 10 ns
> which corresponds to 500 steps. I was checking the .log file
> frequently.
> I have noticed that the number of steps from 1938900 didn't increases.
> When I open a new tab with the top option, I see mdrun still existing.
> I have attached here the .log file and also some warnings that I saw when
> steps stop at 1938900
>
> Step 1938969, time 3877.94 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
> bonds that rotated more than 30 degrees:
>  atom 1 atom 2  angle  previous, current, constraint length
>  46 47   98.80.1406 3889.8669  0.1000
>  45 46   79.4  10193.8799 10564.2393  0.1440
>  43 44   79.60.1033 631.2256  0.1000
>  42 45   80.1  10193.9062 11014.6123  0.1520
>  42 43   93.50.1851 4970.4243  0.1440
>  40 41   76.50.1009 184.9659  0.1000
>  39 42   90.40.1819 5231.5186  0.1520
>  39 40  100.00.1502 624.0559  0.1440
>  37 38   97.10.1001 592.4050  0.1000
>  36 37   81.40.1469 828.7896  0.1430
>  35 39   88.60.1742 8071.4395  0.1520
>  35 36   94.70.1861 8093.3452  0.1530
>  35 34   92.9  8046.3804 17904.5762  0.1440
>  33 45   78.0  26093.2402 332765.5000  0.1520
>  33 34   94.6  26065.5371 330302.5625  0.1440
>  29 30   74.4  190965.5938 1213272.  0.1360
>  27 28   91.2  85465.0547 294693.5000  0.1430
>  25 27   85.7  126649.9141 1143663.7500  0.1360
>  25 26  107.7  116051.3750 805165.8125  0.1230
>  24 29  102.8  1939418.3750 1702562.5000  0.1390
>  24 25  101.0  1963544.3750 1402288.3750  0.1390
>  22 23   97.9  345568.0625 1364901.  0.1530
>  31 21  109.7  1948370.1250 7003795.5000  0.1390
>  21 22  101.2  2108572.2500 6662917.5000  0.1390
>  20 24   89.4  8876732. 68351760.  0.1390
>  20 21   89.1  8780558. 67941296.  0.1390
>  20 19   88.5  39924512. 280068256.  0.1530
>  17 19   92.9  371385600. 509824768.  0.1530
>  17 18   96.4  394707616. 358144416.  0.1230
>  17 16   90.0  446916736. 883243840.  0.1360
>  15 16   98.9  1051905920. 370290400.  0.1430
>  14 15  100.8  520221760. 522257472.  0.1530
>  13 14  128.2  1139173888. 3275473920.  0.1390
>  13 11  155.0  2786396928. 3396753920.  0.1390
>  11 12  151.7  1220930176. 2911329792.  0.1090
>   9 11  161.5  369404096. 342864.  0.1390
>   9 10  135.8  2190610944. 1502276608.  0.1090
>   7  8   91.7  148944928. 1389486464.  0.1000
>   6  9  150.6  497182528. 4613532672.  0.1390
>   6  7  168.3  1652069120. 3562507776.  0.1360
>   4  5  165.5  55138408. 449667456.  0.1000
>   3  6  169.0  1702803200. 4615812096.  0.1390
>   3  4  124.7  198457328. 2500093184.  0.1360
>  13  1  158.1  1042088320. 3730094848.  0.1390
> Wrote pdb files with previous and current coordinates
> Please I need your help what should I do in this case?
> Best regards,
> Safa
> --
> 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!
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>
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Re: [gmx-users] vacum simulation

2013-05-02 Thread Souilem Safa
Thank you very much


On 2 May 2013 22:00, Justin Lemkul  wrote:

>
>
> On 5/2/13 8:57 AM, Souilem Safa wrote:
>
>> Thank you for your quick answer
>> I have joined here my mdp file and the toplogy one also.
>>
>
> The mailing list does not accept attachments.  Please copy and paste the
> text into an email.  We may not need the whole topology, but a description
> of what you're working with is important.  If you are using some novel
> molecule for which you've generated parameters, those can be a source of
> problems.
>
>
>  Should I increase the time step? I'm sorry I'm new in MD
>>
>>
> Increasing the timestep in the case of instabilities is the exact opposite
> of what you should do.  Please read the link I posted earlier.
>
> -Justin
>
>
>
>>
>> On 2 May 2013 21:48, Erik Marklund  wrote:
>>
>>  You seem to be using a 2 fs time step. It's difficult to achieve stable
>>> integration using 2 fs time steps in vacuum. Please provide more
>>> information about your simulation parameters.
>>>
>>> Erik
>>>
>>> On 2 May 2013, at 14:40, Souilem Safa  wrote:
>>>
>>>  Dear Gromacs users ,
 I did the simulation of a single molecule in vacum. I have choosed 10 ns
 which corresponds to 500 steps. I was checking the .log file

>>> frequently.
>>>
 I have noticed that the number of steps from 1938900 didn't increases.
 When I open a new tab with the top option, I see mdrun still existing.
 I have attached here the .log file and also some warnings that I saw
 when
 steps stop at 1938900

 Step 1938969, time 3877.94 (ps)  LINCS WARNING
 relative constraint deviation after LINCS:
 rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
 bonds that rotated more than 30 degrees:
 atom 1 atom 2  angle  previous, current, constraint length
  46 47   98.80.1406 3889.8669  0.1000
  45 46   79.4  10193.8799 10564.2393  0.1440
  43 44   79.60.1033 631.2256  0.1000
  42 45   80.1  10193.9062 11014.6123  0.1520
  42 43   93.50.1851 4970.4243  0.1440
  40 41   76.50.1009 184.9659  0.1000
  39 42   90.40.1819 5231.5186  0.1520
  39 40  100.00.1502 624.0559  0.1440
  37 38   97.10.1001 592.4050  0.1000
  36 37   81.40.1469 828.7896  0.1430
  35 39   88.60.1742 8071.4395  0.1520
  35 36   94.70.1861 8093.3452  0.1530
  35 34   92.9  8046.3804 17904.5762  0.1440
  33 45   78.0  26093.2402 332765.5000  0.1520
  33 34   94.6  26065.5371 330302.5625  0.1440
  29 30   74.4  190965.5938 1213272.  0.1360
  27 28   91.2  85465.0547 294693.5000  0.1430
  25 27   85.7  126649.9141 1143663.7500  0.1360
  25 26  107.7  116051.3750 805165.8125  0.1230
  24 29  102.8  1939418.3750 1702562.5000  0.1390
  24 25  101.0  1963544.3750 1402288.3750  0.1390
  22 23   97.9  345568.0625 1364901.  0.1530
  31 21  109.7  1948370.1250 7003795.5000  0.1390
  21 22  101.2  2108572.2500 6662917.5000  0.1390
  20 24   89.4  8876732. 68351760.  0.1390
  20 21   89.1  8780558. 67941296.  0.1390
  20 19   88.5  39924512. 280068256.  0.1530
  17 19   92.9  371385600. 509824768.  0.1530
  17 18   96.4  394707616. 358144416.  0.1230
  17 16   90.0  446916736. 883243840.  0.1360
  15 16   98.9  1051905920. 370290400.  0.1430
  14 15  100.8  520221760. 522257472.  0.1530
  13 14  128.2  1139173888. 3275473920.  0.1390
  13 11  155.0  2786396928. 3396753920.  0.1390
  11 12  151.7  1220930176. 2911329792.  0.1090
   9 11  161.5  369404096. 342864.  0.1390
   9 10  135.8  2190610944. 1502276608.  0.1090
   7  8   91.7  148944928. 1389486464.  0.1000
   6  9  150.6  497182528. 4613532672.  0.1390
   6  7  168.3  1652069120. 3562507776.  0.1360
   4  5  165.5  55138408. 449667456.  0.1000
   3  6  169.0  1702803200. 4615812096.  0.1390
   3  4  124.7  198457328. 2500093184.  0.1360
  13  1  158.1  1042088320. 3730094848.  0.1390
 Wrote pdb files with previous and current coordinates
 Please I need your help what should I do in this case?
 Best regards,
 Safa
 --
 gmx-users mailing listgmx-users@gromacs.org
 http://lists.gromacs.org/**mailman/listinfo/gmx-users

Re: [gmx-users] vacum simulation

2013-05-02 Thread Justin Lemkul



On 5/2/13 8:57 AM, Souilem Safa wrote:

Thank you for your quick answer
I have joined here my mdp file and the toplogy one also.


The mailing list does not accept attachments.  Please copy and paste the text 
into an email.  We may not need the whole topology, but a description of what 
you're working with is important.  If you are using some novel molecule for 
which you've generated parameters, those can be a source of problems.



Should I increase the time step? I'm sorry I'm new in MD



Increasing the timestep in the case of instabilities is the exact opposite of 
what you should do.  Please read the link I posted earlier.


-Justin




On 2 May 2013 21:48, Erik Marklund  wrote:


You seem to be using a 2 fs time step. It's difficult to achieve stable
integration using 2 fs time steps in vacuum. Please provide more
information about your simulation parameters.

Erik

On 2 May 2013, at 14:40, Souilem Safa  wrote:


Dear Gromacs users ,
I did the simulation of a single molecule in vacum. I have choosed 10 ns
which corresponds to 500 steps. I was checking the .log file

frequently.

I have noticed that the number of steps from 1938900 didn't increases.
When I open a new tab with the top option, I see mdrun still existing.
I have attached here the .log file and also some warnings that I saw when
steps stop at 1938900

Step 1938969, time 3877.94 (ps)  LINCS WARNING
relative constraint deviation after LINCS:
rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
bonds that rotated more than 30 degrees:
atom 1 atom 2  angle  previous, current, constraint length
 46 47   98.80.1406 3889.8669  0.1000
 45 46   79.4  10193.8799 10564.2393  0.1440
 43 44   79.60.1033 631.2256  0.1000
 42 45   80.1  10193.9062 11014.6123  0.1520
 42 43   93.50.1851 4970.4243  0.1440
 40 41   76.50.1009 184.9659  0.1000
 39 42   90.40.1819 5231.5186  0.1520
 39 40  100.00.1502 624.0559  0.1440
 37 38   97.10.1001 592.4050  0.1000
 36 37   81.40.1469 828.7896  0.1430
 35 39   88.60.1742 8071.4395  0.1520
 35 36   94.70.1861 8093.3452  0.1530
 35 34   92.9  8046.3804 17904.5762  0.1440
 33 45   78.0  26093.2402 332765.5000  0.1520
 33 34   94.6  26065.5371 330302.5625  0.1440
 29 30   74.4  190965.5938 1213272.  0.1360
 27 28   91.2  85465.0547 294693.5000  0.1430
 25 27   85.7  126649.9141 1143663.7500  0.1360
 25 26  107.7  116051.3750 805165.8125  0.1230
 24 29  102.8  1939418.3750 1702562.5000  0.1390
 24 25  101.0  1963544.3750 1402288.3750  0.1390
 22 23   97.9  345568.0625 1364901.  0.1530
 31 21  109.7  1948370.1250 7003795.5000  0.1390
 21 22  101.2  2108572.2500 6662917.5000  0.1390
 20 24   89.4  8876732. 68351760.  0.1390
 20 21   89.1  8780558. 67941296.  0.1390
 20 19   88.5  39924512. 280068256.  0.1530
 17 19   92.9  371385600. 509824768.  0.1530
 17 18   96.4  394707616. 358144416.  0.1230
 17 16   90.0  446916736. 883243840.  0.1360
 15 16   98.9  1051905920. 370290400.  0.1430
 14 15  100.8  520221760. 522257472.  0.1530
 13 14  128.2  1139173888. 3275473920.  0.1390
 13 11  155.0  2786396928. 3396753920.  0.1390
 11 12  151.7  1220930176. 2911329792.  0.1090
  9 11  161.5  369404096. 342864.  0.1390
  9 10  135.8  2190610944. 1502276608.  0.1090
  7  8   91.7  148944928. 1389486464.  0.1000
  6  9  150.6  497182528. 4613532672.  0.1390
  6  7  168.3  1652069120. 3562507776.  0.1360
  4  5  165.5  55138408. 449667456.  0.1000
  3  6  169.0  1702803200. 4615812096.  0.1390
  3  4  124.7  198457328. 2500093184.  0.1360
 13  1  158.1  1042088320. 3730094848.  0.1390
Wrote pdb files with previous and current coordinates
Please I need your help what should I do in this case?
Best regards,
Safa
--
gmx-users mailing listgmx-users@gromacs.org
http://lists.gromacs.org/mailman/listinfo/gmx-users
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Re: [gmx-users] vacum simulation

2013-05-02 Thread Souilem Safa
Thank you for your quick answer
I have joined here my mdp file and the toplogy one also.
Should I increase the time step? I'm sorry I'm new in MD



On 2 May 2013 21:48, Erik Marklund  wrote:

> You seem to be using a 2 fs time step. It's difficult to achieve stable
> integration using 2 fs time steps in vacuum. Please provide more
> information about your simulation parameters.
>
> Erik
>
> On 2 May 2013, at 14:40, Souilem Safa  wrote:
>
> > Dear Gromacs users ,
> > I did the simulation of a single molecule in vacum. I have choosed 10 ns
> > which corresponds to 500 steps. I was checking the .log file
> frequently.
> > I have noticed that the number of steps from 1938900 didn't increases.
> > When I open a new tab with the top option, I see mdrun still existing.
> > I have attached here the .log file and also some warnings that I saw when
> > steps stop at 1938900
> >
> > Step 1938969, time 3877.94 (ps)  LINCS WARNING
> > relative constraint deviation after LINCS:
> > rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
> > bonds that rotated more than 30 degrees:
> > atom 1 atom 2  angle  previous, current, constraint length
> > 46 47   98.80.1406 3889.8669  0.1000
> > 45 46   79.4  10193.8799 10564.2393  0.1440
> > 43 44   79.60.1033 631.2256  0.1000
> > 42 45   80.1  10193.9062 11014.6123  0.1520
> > 42 43   93.50.1851 4970.4243  0.1440
> > 40 41   76.50.1009 184.9659  0.1000
> > 39 42   90.40.1819 5231.5186  0.1520
> > 39 40  100.00.1502 624.0559  0.1440
> > 37 38   97.10.1001 592.4050  0.1000
> > 36 37   81.40.1469 828.7896  0.1430
> > 35 39   88.60.1742 8071.4395  0.1520
> > 35 36   94.70.1861 8093.3452  0.1530
> > 35 34   92.9  8046.3804 17904.5762  0.1440
> > 33 45   78.0  26093.2402 332765.5000  0.1520
> > 33 34   94.6  26065.5371 330302.5625  0.1440
> > 29 30   74.4  190965.5938 1213272.  0.1360
> > 27 28   91.2  85465.0547 294693.5000  0.1430
> > 25 27   85.7  126649.9141 1143663.7500  0.1360
> > 25 26  107.7  116051.3750 805165.8125  0.1230
> > 24 29  102.8  1939418.3750 1702562.5000  0.1390
> > 24 25  101.0  1963544.3750 1402288.3750  0.1390
> > 22 23   97.9  345568.0625 1364901.  0.1530
> > 31 21  109.7  1948370.1250 7003795.5000  0.1390
> > 21 22  101.2  2108572.2500 6662917.5000  0.1390
> > 20 24   89.4  8876732. 68351760.  0.1390
> > 20 21   89.1  8780558. 67941296.  0.1390
> > 20 19   88.5  39924512. 280068256.  0.1530
> > 17 19   92.9  371385600. 509824768.  0.1530
> > 17 18   96.4  394707616. 358144416.  0.1230
> > 17 16   90.0  446916736. 883243840.  0.1360
> > 15 16   98.9  1051905920. 370290400.  0.1430
> > 14 15  100.8  520221760. 522257472.  0.1530
> > 13 14  128.2  1139173888. 3275473920.  0.1390
> > 13 11  155.0  2786396928. 3396753920.  0.1390
> > 11 12  151.7  1220930176. 2911329792.  0.1090
> >  9 11  161.5  369404096. 342864.  0.1390
> >  9 10  135.8  2190610944. 1502276608.  0.1090
> >  7  8   91.7  148944928. 1389486464.  0.1000
> >  6  9  150.6  497182528. 4613532672.  0.1390
> >  6  7  168.3  1652069120. 3562507776.  0.1360
> >  4  5  165.5  55138408. 449667456.  0.1000
> >  3  6  169.0  1702803200. 4615812096.  0.1390
> >  3  4  124.7  198457328. 2500093184.  0.1360
> > 13  1  158.1  1042088320. 3730094848.  0.1390
> > Wrote pdb files with previous and current coordinates
> > Please I need your help what should I do in this case?
> > Best regards,
> > Safa
> > --
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> > http://lists.gromacs.org/mailman/listinfo/gmx-users
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Re: [gmx-users] vacum simulation

2013-05-02 Thread Erik Marklund
You seem to be using a 2 fs time step. It's difficult to achieve stable 
integration using 2 fs time steps in vacuum. Please provide more information 
about your simulation parameters.

Erik

On 2 May 2013, at 14:40, Souilem Safa  wrote:

> Dear Gromacs users ,
> I did the simulation of a single molecule in vacum. I have choosed 10 ns
> which corresponds to 500 steps. I was checking the .log file frequently.
> I have noticed that the number of steps from 1938900 didn't increases.
> When I open a new tab with the top option, I see mdrun still existing.
> I have attached here the .log file and also some warnings that I saw when
> steps stop at 1938900
> 
> Step 1938969, time 3877.94 (ps)  LINCS WARNING
> relative constraint deviation after LINCS:
> rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
> bonds that rotated more than 30 degrees:
> atom 1 atom 2  angle  previous, current, constraint length
> 46 47   98.80.1406 3889.8669  0.1000
> 45 46   79.4  10193.8799 10564.2393  0.1440
> 43 44   79.60.1033 631.2256  0.1000
> 42 45   80.1  10193.9062 11014.6123  0.1520
> 42 43   93.50.1851 4970.4243  0.1440
> 40 41   76.50.1009 184.9659  0.1000
> 39 42   90.40.1819 5231.5186  0.1520
> 39 40  100.00.1502 624.0559  0.1440
> 37 38   97.10.1001 592.4050  0.1000
> 36 37   81.40.1469 828.7896  0.1430
> 35 39   88.60.1742 8071.4395  0.1520
> 35 36   94.70.1861 8093.3452  0.1530
> 35 34   92.9  8046.3804 17904.5762  0.1440
> 33 45   78.0  26093.2402 332765.5000  0.1520
> 33 34   94.6  26065.5371 330302.5625  0.1440
> 29 30   74.4  190965.5938 1213272.  0.1360
> 27 28   91.2  85465.0547 294693.5000  0.1430
> 25 27   85.7  126649.9141 1143663.7500  0.1360
> 25 26  107.7  116051.3750 805165.8125  0.1230
> 24 29  102.8  1939418.3750 1702562.5000  0.1390
> 24 25  101.0  1963544.3750 1402288.3750  0.1390
> 22 23   97.9  345568.0625 1364901.  0.1530
> 31 21  109.7  1948370.1250 7003795.5000  0.1390
> 21 22  101.2  2108572.2500 6662917.5000  0.1390
> 20 24   89.4  8876732. 68351760.  0.1390
> 20 21   89.1  8780558. 67941296.  0.1390
> 20 19   88.5  39924512. 280068256.  0.1530
> 17 19   92.9  371385600. 509824768.  0.1530
> 17 18   96.4  394707616. 358144416.  0.1230
> 17 16   90.0  446916736. 883243840.  0.1360
> 15 16   98.9  1051905920. 370290400.  0.1430
> 14 15  100.8  520221760. 522257472.  0.1530
> 13 14  128.2  1139173888. 3275473920.  0.1390
> 13 11  155.0  2786396928. 3396753920.  0.1390
> 11 12  151.7  1220930176. 2911329792.  0.1090
>  9 11  161.5  369404096. 342864.  0.1390
>  9 10  135.8  2190610944. 1502276608.  0.1090
>  7  8   91.7  148944928. 1389486464.  0.1000
>  6  9  150.6  497182528. 4613532672.  0.1390
>  6  7  168.3  1652069120. 3562507776.  0.1360
>  4  5  165.5  55138408. 449667456.  0.1000
>  3  6  169.0  1702803200. 4615812096.  0.1390
>  3  4  124.7  198457328. 2500093184.  0.1360
> 13  1  158.1  1042088320. 3730094848.  0.1390
> Wrote pdb files with previous and current coordinates
> Please I need your help what should I do in this case?
> Best regards,
> Safa
> -- 
> 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.
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Re: [gmx-users] vacum simulation

2013-05-02 Thread Justin Lemkul



On 5/2/13 8:40 AM, Souilem Safa wrote:

Dear Gromacs users ,
  I did the simulation of a single molecule in vacum. I have choosed 10 ns
which corresponds to 500 steps. I was checking the .log file frequently.
I have noticed that the number of steps from 1938900 didn't increases.
When I open a new tab with the top option, I see mdrun still existing.
I have attached here the .log file and also some warnings that I saw when
steps stop at 1938900

Step 1938969, time 3877.94 (ps)  LINCS WARNING
relative constraint deviation after LINCS:
rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
bonds that rotated more than 30 degrees:
  atom 1 atom 2  angle  previous, current, constraint length
  46 47   98.80.1406 3889.8669  0.1000
  45 46   79.4  10193.8799 10564.2393  0.1440
  43 44   79.60.1033 631.2256  0.1000
  42 45   80.1  10193.9062 11014.6123  0.1520
  42 43   93.50.1851 4970.4243  0.1440
  40 41   76.50.1009 184.9659  0.1000
  39 42   90.40.1819 5231.5186  0.1520
  39 40  100.00.1502 624.0559  0.1440
  37 38   97.10.1001 592.4050  0.1000
  36 37   81.40.1469 828.7896  0.1430
  35 39   88.60.1742 8071.4395  0.1520
  35 36   94.70.1861 8093.3452  0.1530
  35 34   92.9  8046.3804 17904.5762  0.1440
  33 45   78.0  26093.2402 332765.5000  0.1520
  33 34   94.6  26065.5371 330302.5625  0.1440
  29 30   74.4  190965.5938 1213272.  0.1360
  27 28   91.2  85465.0547 294693.5000  0.1430
  25 27   85.7  126649.9141 1143663.7500  0.1360
  25 26  107.7  116051.3750 805165.8125  0.1230
  24 29  102.8  1939418.3750 1702562.5000  0.1390
  24 25  101.0  1963544.3750 1402288.3750  0.1390
  22 23   97.9  345568.0625 1364901.  0.1530
  31 21  109.7  1948370.1250 7003795.5000  0.1390
  21 22  101.2  2108572.2500 6662917.5000  0.1390
  20 24   89.4  8876732. 68351760.  0.1390
  20 21   89.1  8780558. 67941296.  0.1390
  20 19   88.5  39924512. 280068256.  0.1530
  17 19   92.9  371385600. 509824768.  0.1530
  17 18   96.4  394707616. 358144416.  0.1230
  17 16   90.0  446916736. 883243840.  0.1360
  15 16   98.9  1051905920. 370290400.  0.1430
  14 15  100.8  520221760. 522257472.  0.1530
  13 14  128.2  1139173888. 3275473920.  0.1390
  13 11  155.0  2786396928. 3396753920.  0.1390
  11 12  151.7  1220930176. 2911329792.  0.1090
   9 11  161.5  369404096. 342864.  0.1390
   9 10  135.8  2190610944. 1502276608.  0.1090
   7  8   91.7  148944928. 1389486464.  0.1000
   6  9  150.6  497182528. 4613532672.  0.1390
   6  7  168.3  1652069120. 3562507776.  0.1360
   4  5  165.5  55138408. 449667456.  0.1000
   3  6  169.0  1702803200. 4615812096.  0.1390
   3  4  124.7  198457328. 2500093184.  0.1360
  13  1  158.1  1042088320. 3730094848.  0.1390
Wrote pdb files with previous and current coordinates
Please I need your help what should I do in this case?


http://www.gromacs.org/Documentation/Terminology/Blowing_Up

Probably something is wrong in your topology or .mdp file, but since you've 
provided neither, it's hard to provide any specific advice.


-Justin

--


Justin A. Lemkul, Ph.D.
Research Scientist
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin


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[gmx-users] vacum simulation

2013-05-02 Thread Souilem Safa
Dear Gromacs users ,
 I did the simulation of a single molecule in vacum. I have choosed 10 ns
which corresponds to 500 steps. I was checking the .log file frequently.
I have noticed that the number of steps from 1938900 didn't increases.
When I open a new tab with the top option, I see mdrun still existing.
I have attached here the .log file and also some warnings that I saw when
steps stop at 1938900

Step 1938969, time 3877.94 (ps)  LINCS WARNING
relative constraint deviation after LINCS:
rms 12871303501.643789, max 33207281664.00 (between atoms 3 and 6)
bonds that rotated more than 30 degrees:
 atom 1 atom 2  angle  previous, current, constraint length
 46 47   98.80.1406 3889.8669  0.1000
 45 46   79.4  10193.8799 10564.2393  0.1440
 43 44   79.60.1033 631.2256  0.1000
 42 45   80.1  10193.9062 11014.6123  0.1520
 42 43   93.50.1851 4970.4243  0.1440
 40 41   76.50.1009 184.9659  0.1000
 39 42   90.40.1819 5231.5186  0.1520
 39 40  100.00.1502 624.0559  0.1440
 37 38   97.10.1001 592.4050  0.1000
 36 37   81.40.1469 828.7896  0.1430
 35 39   88.60.1742 8071.4395  0.1520
 35 36   94.70.1861 8093.3452  0.1530
 35 34   92.9  8046.3804 17904.5762  0.1440
 33 45   78.0  26093.2402 332765.5000  0.1520
 33 34   94.6  26065.5371 330302.5625  0.1440
 29 30   74.4  190965.5938 1213272.  0.1360
 27 28   91.2  85465.0547 294693.5000  0.1430
 25 27   85.7  126649.9141 1143663.7500  0.1360
 25 26  107.7  116051.3750 805165.8125  0.1230
 24 29  102.8  1939418.3750 1702562.5000  0.1390
 24 25  101.0  1963544.3750 1402288.3750  0.1390
 22 23   97.9  345568.0625 1364901.  0.1530
 31 21  109.7  1948370.1250 7003795.5000  0.1390
 21 22  101.2  2108572.2500 6662917.5000  0.1390
 20 24   89.4  8876732. 68351760.  0.1390
 20 21   89.1  8780558. 67941296.  0.1390
 20 19   88.5  39924512. 280068256.  0.1530
 17 19   92.9  371385600. 509824768.  0.1530
 17 18   96.4  394707616. 358144416.  0.1230
 17 16   90.0  446916736. 883243840.  0.1360
 15 16   98.9  1051905920. 370290400.  0.1430
 14 15  100.8  520221760. 522257472.  0.1530
 13 14  128.2  1139173888. 3275473920.  0.1390
 13 11  155.0  2786396928. 3396753920.  0.1390
 11 12  151.7  1220930176. 2911329792.  0.1090
  9 11  161.5  369404096. 342864.  0.1390
  9 10  135.8  2190610944. 1502276608.  0.1090
  7  8   91.7  148944928. 1389486464.  0.1000
  6  9  150.6  497182528. 4613532672.  0.1390
  6  7  168.3  1652069120. 3562507776.  0.1360
  4  5  165.5  55138408. 449667456.  0.1000
  3  6  169.0  1702803200. 4615812096.  0.1390
  3  4  124.7  198457328. 2500093184.  0.1360
 13  1  158.1  1042088320. 3730094848.  0.1390
Wrote pdb files with previous and current coordinates
Please I need your help what should I do in this case?
Best regards,
Safa
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