RE: [gmx-users] Using double precision files with single precision version

2008-11-26 Thread Berk Hess

Hi,

This works fine.
All Gromacs file format/programs are single/double compatible both ways.
Reading a double precision file with a single precision program,
or course, gives single precision results.
But there is probably no property that is significantly affected by this.

Berk

> Date: Wed, 26 Nov 2008 20:14:28 +1100
> From: [EMAIL PROTECTED]
> To: gmx-users@gromacs.org
> Subject: Re: [gmx-users] Using double precision files with single precision   
> version
> 
> vivek sharma wrote:
> > Hi All,
> > I had a few MD runs with double precision in gromacs, Can I use single 
> > precision version of gromacs to play with those files e.g making movie 
> > files and extracting h_bond information.
> > I am afraid if it will affect my results.
> 
> I don't know whether it does work, but I suspect not. However it's 
> trivial to compile a double-precision version, with --enable-double and 
> --program-suffix=_d, and once installed you can use g_hbond when you 
> want and g_hbond_d when you want.
> 
> Mark
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Re: [gmx-users] Using double precision files with single precision version

2008-11-26 Thread Mark Abraham

vivek sharma wrote:

Hi All,
I had a few MD runs with double precision in gromacs, Can I use single 
precision version of gromacs to play with those files e.g making movie 
files and extracting h_bond information.

I am afraid if it will affect my results.


I don't know whether it does work, but I suspect not. However it's 
trivial to compile a double-precision version, with --enable-double and 
--program-suffix=_d, and once installed you can use g_hbond when you 
want and g_hbond_d when you want.


Mark
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[gmx-users] Using double precision files with single precision version

2008-11-25 Thread vivek sharma
Hi All,
I had a few MD runs with double precision in gromacs, Can I use single
precision version of gromacs to play with those files e.g making movie files
and extracting h_bond information.
I am afraid if it will affect my results.

Please suggest

With thanks,
Vivek
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