Juliette N. wrote:
Hello,

I am trying to extend a simulation to 2 ns and wanted to know if I am using the proper tools for this purpose. (version 4.5.4)

1) tpbconv –f old.trr -s old.tpr –e old.edr -o old-extend.tpr -until 2000

mdrun -s old-extend.tpr -cpi old.cpt -o old-extend -c old-extend -e old-extend

Is what I am doing correct?


Yes.  Save yourself some typing with:

mdrun -deffnm old-extend -cpi old.cpt

2) Can I use the following in 4.5.4 instead of above?

mdrun -s old.tpr -cpi old.cpt -append 2000


No. The mdrun -append option does not take an argument; it is a boolean (i.e. -append/-noappend) to indicate whether old files are to be appended to or not.

-Justin

--
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
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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