Re: [AMBER] aMD on Amber 12

From: Aldo Segura <asegurac666.yahoo.com.mx>
Date: Tue, 18 Nov 2014 16:49:14 +0000 (UTC)

Hi Daniel,
Sorry for the messed up message. In your experience, is it possible to add multiples of alphaP to EthreshP to get higher potential boost? Thank you so much for your hep.
Best,
Aldo
 =======================================
Aldo Segura-Cabrera
Postdoctoral Fellow
Division of Experimental Hematology and Cancer BiologyCancer and Blood Diseases Institute
Cincinnati Children's Hospital Medical Center
3333 Burnet Ave, MLC 7013, Cincinnati OH 45229
=========================================
      De: Daniel Roe <daniel.r.roe.gmail.com>
 Para: Aldo Segura <asegurac666.yahoo.com.mx>; AMBER Mailing List <amber.ambermd.org>
 Enviado: Martes, 18 de noviembre, 2014 10:01:20
 Asunto: Re: [AMBER] aMD on Amber 12
   
Hi,

Your email came in very garbled (missing newlines etc) which made it
difficult to parse. If possible try to send things to the list in
plain text format in the future.

That said, you certainly have differences in your dihedral energies:

> DIHED      =    15848.4365 # Non-aMD
> DIHED      =    47360.5197 # aMD

and if you check your aMD log you'll see that you are indeed getting a
big dihedral boost (last number):

> 5000  785000  -480647.202895273920    47120.363307878375        1.000000000000        0.000172857168        0.000000000000  129716.426811902173

You're not getting any potential boost (second to last number) because
the PE hasn't risen above your specified threshold (-477022).

-Dan

On Mon, Nov 17, 2014 at 10:53 PM, Aldo Segura <asegurac666.yahoo.com.mx> wrote:
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> no. of atoms: 168207
>
> no. of residues (ligand included): 1491
>
> ave_epot: -510662.9304
>
> ave_dihe: 15864.5125
>
>
> 3.5 * 1491= 5218.5
>
> alphaD = (1/5) * 5218.5 = 1043.7
>
> EthreshD = 5218 + 15864 = 21082
>
> alphaP = 168207 * (1/5) = 33641.4
> EthreshP = -510662.9304 + 33641 = -477021.9304
>
>
>
>  ig=-1,
>  imin=0,irest=1,ntx=5,
>  nstlim=125000000,dt=0.002,
>  ntc=2,ntf=2,
>  cut=8.0, ntb=2, ntp=1, taup=1.0, ioutfm=1, iwrap=1,
>  ntpr=5000, ntwx=5000,
>  ntt=3, gamma_ln=2.0,
>  temp0=300.0,
>  iamd=3,
>  ethreshd=21082, alphad=1044,
>  ethreshp=-477022, alphap=33641,
> /
>
>  Here is a fragment ofthe output using pmemd.cuda alone: NSTEP =  815000  TIME(PS) =  2230.000  TEMP(K) =  300.42 PRESS =  -126.8 Etot  =  -406789.1395  EKtot  =  103958.8672  EPtot      =  -510748.0067 BOND  =    4728.6164  ANGLE  =    12275.8411  DIHED      =    15848.4365 1-4 NB =      5330.5300 1-4 EEL =    51522.3414  VDWAALS  =    58875.0408 EELEC  =  -659328.8129  EHBOND  =        0.0000  RESTRAINT  =        0.0000 EKCMT  =    43215.3845  VIRIAL  =    47899.2587  VOLUME    =  1711491.0577                                                  Density    =        1.0067 ------------------------------------------------------------------------------  NSTEP =  820000  TIME(PS) =    2240.000  TEMP(K) =  299.74  PRESS =    90.3 Etot  =  -407887.6661  EKtot  =  103723.1797  EPtot      =  -511610.8458 BOND  =    4629.2373  ANGLE  =    12106.4622  DIHED      =    15802.9587 1-4 NB =      5406.0596 1-4 EEL =    51590.1358  VDWAALS  =    60204.5597 EELEC  =  -661350.2590  EHBOND  =        0.0000  RESTRAINT  =        0.0000 EKCMT  =    43260.6577  VIRIAL  =    39921.4369  VOLUME    =  1712767.3543                                                  Density    =        1.0059 ------------------------------------------------------------------------------  Here is a fragment ofthe output using pmemd.cuda with aMD: NSTEP =  815000  TIME(PS) =  2230.000  TEMP(K) =  301.06 PRESS =  -29.9 Etot  =  -376495.0744  EKtot  =  104180.2891  EPtot      =  -480675.3635 BOND  =    4565.2249  ANGLE  =    13367.1498  DIHED      =    47360.5197 1-4 NB =      5208.1735 1-4 EEL =    50696.1713  VDWAALS  =    59502.2362 EELEC  =  -661374.8389  EHBOND  =        0.0000  RESTRAINT  =        0.0000 EKCMT  =    43190.7528  VIRIAL  =    44297.6105  VOLUME    =  1712793.4145                                                  Density    =        1.0059 ------------------------------------------------------------------------------  NSTEP =  820000  TIME(PS) =    2240.000  TEMP(K) =  300.10  PRESS =    9.4 Etot  =  -377241.0533  EKtot  =  103849.7734  EPtot      =  -481090.8268 BOND  =    4705.3342  ANGLE  =    13608.3724  DIHED      =    47322.2061 1-4 NB =      5160.5467 1-4 EEL =    50426.2493  VDWAALS  =    59466.8915 EELEC  =  -661780.4270  EHBOND  =        0.0000  RESTRAINT  =        0.0000 EKCMT  =    43372.3488  VIRIAL  =    43023.7008  VOLUME    =  1710416.9243                                                  Density    =        1.0073 ------------------------------------------------------------------------------  This is a lastfragment of the amd.log file: bash-4.1$ tail amd.log        5000  785000  -480647.202895273920    47120.363307878375        1.000000000000        0.000172857168        0.000000000000  129716.426811902173        5000  790000  -481134.391026637983    47257.762343714014        1.000000000000        0.000173456921        0.000000000000  129485.995137548394        5000  795000  -480395.602210825775    47564.722687611356        1.000000000000        0.000174808146        0.000000000000  128971.193002039130        5000  800000  -480571.340056136716    47377.097419776954        1.000000000000        0.000173980361        0.000000000000  129285.858609870047        5000  805000  -480442.272442598362    47055.138141021132        1.000000000000        0.000172573546        0.000000000000  129825.815869500351        5000  810000  -479886.118565759622    48143.936395731755        1.000000000000        0.000177401190        0.000000000000  127999.797599786805        5000  815000  -480675.363465000410    47360.519683936611        1.000000000000        0.000173907505        0.000000000000  129313.661078757083        5000  820000  -481090.826785803307    47322.206079091877        1.000000000000        0.000173739297        0.000000000000  129377.916713270373        5000  825000  -480271.830837909132    47518.834657253698        1.000000000000        0.000174605148        0.000000000000  129048.151615417257        5000  830000  -480790.213786629494    47371.100524365902        1.000000000000        0.000173954000        0.000000000000  129295.915984160965 I would appreciate anyhelp with this issue. Best, Aldo =======================================
> Aldo Segura-Cabrera
> Postdoctoral Fellow
> Division of Experimental Hematology and Cancer BiologyCancer and Blood Diseases Institute
> Cincinnati Children's Hospital Medical Center
> 3333 Burnet Ave, MLC 7013, Cincinnati OH 45229
> =========================================
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber



-- 
-------------------------
Daniel R. Roe, PhD
Department of Medicinal Chemistry
University of Utah
30 South 2000 East, Room 307
Salt Lake City, UT 84112-5820
http://home.chpc.utah.edu/~cheatham/
(801) 587-9652
(801) 585-6208 (Fax)
  
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Received on Tue Nov 18 2014 - 09:00:03 PST
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