Re: [AMBER] pbsa eneopt = 4 option

From: Ray Luo <rluo.uci.edu>
Date: Wed, 12 Oct 2016 11:41:18 -0700

It's the P3M compatible option for forces, a fast method for
dielectric boundary force calculation is also used.

All the best,
Ray
--
Ray Luo, Ph.D.
Professor
Biochemistry, Molecular Biophysics, Chemical Physics,
Chemical and Biomedical Engineering
University of California, Irvine, CA 92697-3900
On Wed, Oct 12, 2016 at 10:03 AM, Vlad Cojocaru
<vlad.cojocaru.mpi-muenster.mpg.de> wrote:
> Thanks Ray for the tip...I will try with frcopt=5 .....  frcopt=0 is not allowed with eneopt=4 at the moment ... What does 5 do ?
>
> Best
> Vlad
>
> On October 12, 2016 5:32:36 PM GMT+02:00, Ray Luo <rluo.uci.edu> wrote:
>>Hi Vlad,
>>
>>Okay this is because the entry was not updated in the manual. Please
>>check the keyword combination in the test case for pb_np3m. The frcopt
>>should be 5 to match the eneopt=4. However, I think it should also
>>allow users to set frcopt=0, even if force is always computed.
>>
>>All the best,
>>Ray
>>--
>>Ray Luo, Ph.D.
>>Professor
>>Biochemistry, Molecular Biophysics, Chemical Physics,
>>Chemical and Biomedical Engineering
>>University of California, Irvine, CA 92697-3900
>>
>>
>>On Wed, Oct 12, 2016 at 7:44 AM, Vlad Cojocaru
>><vlad.cojocaru.mpi-muenster.mpg.de> wrote:
>>> Dear Ray, Dear all,
>>>
>>> Using non linear Poisson Boltzmann, I thought of trying the option
>>> eneopt=4. However I always get the error: "PB Bomb in pb_read():
>>> combination of eneopt and frcopt is unsupported". I tried all
>>possible
>>> values for frcopt option (0,1,2,3) and also I tried an input without
>>> defining frcopt at all (see below) but everytime the same error. Is
>>the
>>> "eneopt=4" option usable whatsoever ?
>>>
>>> Thanks for answering
>>>
>>> Best wishes
>>> Vlad
>>>
>>>
>>>
>>> MMPBSA, Nonlinear PB, inp=2, sasopt=2
>>> &cntrl
>>>   nsnb=99999, dec_verbose=0, ioutfm=1,
>>>   ipb=2, ntb=0, cut=999.0, imin=5,
>>>   igb=10, inp=2,
>>> /
>>> &pb
>>>   epsin=4, epsout=80, smoothopt=1,
>>>   istrng=100.0, pbtemp=300, radiopt=1,
>>>   dprob=1.4, iprob=2.0, sasopt=2, saopt=0,
>>>   triopt=1, arcres=0.25,
>>>   npbopt=1, solvopt=1, accept=0.001,
>>>   maxitn=100, fillratio=4.0, space=0.5,
>>>   nbuffer=0, nfocus=2, fscale=8, npbgrid=1,
>>>   bcopt=5, eneopt=4, scalec=0,
>>>   cutfd=5.0, cutnb=15, nsnba=1,
>>>   phiout=0, npbverb=1,
>>>   decompopt=2, use_rmin=1, sprob=0.557, vprob=1.3,
>>>   rhow_effect=1.129, use_sav=1,
>>>   cavity_surften=0.0378, cavity_offset=-0.5692,
>>>   maxsph=400,
>>> /
>>>
>>> --
>>> Dr. Vlad Cojocaru
>>> Computational Structural Biology Laboratory
>>> Department of Cell and Developmental Biology
>>> Max Planck Institute for Molecular Biomedicine
>>> Röntgenstrasse 20, 48149 Münster, Germany
>>> Tel: +49-251-70365-324; Fax: +49-251-70365-399
>>> Email: vlad.cojocaru[at]mpi-muenster.mpg.de
>>> http://www.mpi-muenster.mpg.de/43241/cojocaru
>>>
>>>
>>> _______________________________________________
>>> AMBER mailing list
>>> AMBER.ambermd.org
>>> http://lists.ambermd.org/mailman/listinfo/amber
>>
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> --
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Received on Wed Oct 12 2016 - 12:00:02 PDT
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