Re: [AMBER] combining coordinate and velocity files into one

From: Jason Swails <jason.swails.gmail.com>
Date: Tue, 9 Mar 2010 18:15:31 -0500

On Tue, Mar 9, 2010 at 6:02 PM, Amire-Brahimi Benjamin
<bxa8300.louisiana.edu> wrote:
> So I tried with the irestrt = 1 and ntx = 5 like you have stated but I still
> get the same error.
>
> FATAL: Could not read velocities from min_chaina_gol.crd

This means that min_chaina_gol.crd does not have any velocities. This
is easy to check. If it does have velocities, then there will be 6
times as many numbers in that file as there are atoms (3 for each
position and 3 for each atom's velocity). There will be an additional
3 if there is box information. If there is no velocity information,
then use irest=0, ntx=1.

Good luck!
Jason

>
> This is my command line to restart the MD simulation
>
> /home/packages/amber/10/intel-11.1-mvapich-1.1/bin/sander -O -i
> complexmdrest.in -o complexmdrest.out -p min_chaina_gol.top -c
> min_chaina_gol.crd -r md1.rst -x chaina_min_mdcrd1.mdcrd -v
> chaina_mdvel1.mdvel -inf chaina_mdinfo1.mdinfo
>
> Here is my input file:
> Restart simulation
> &cntrl
>  imin = 0,
>  ntx    = 5,
>  irest  = 1,
>  ntrx   = 1,
>  ntxo   = 1,
>  ntpr   = 50,
>  ntwx   = 1000,
>  ntwv   = -1,
>  ioutfm = 1,
>  ntwe   = 1000,
>  ntwr   = 1000,
>  ntf    = 2,
>  ntb    = 2,
>  ntp    = 1,
>  pres0 = 1.0,
>  cut    = 10.0,
>  nsnb   = 20,
>  ibelly = 0,
>  ntr    = 0,
>  imin   = 0,
>  nstlim = 2500000,
>  nscm   = 500,
>  t      = 0.0,
>  dt     = 0.002,
>  temp0  = 298.0,
>  tempi  = 298.0,
>  ntt    = 1,
>  vrand  = 0,
>  vlimit = 15.0,
>  ntc    = 2,
> &end
>
> Thanks,
>
> Ben
>
> --
>
>
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>



-- 
---------------------------------------
Jason M. Swails
Quantum Theory Project,
University of Florida
Ph.D. Graduate Student
352-392-4032
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Received on Tue Mar 09 2010 - 15:30:03 PST
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