Binary identical means that the files are identical bit-for-bit, i.e. if you ran "cmp traj1.trr traj2.trr" it would report the files to be the same/indistinguishable.

This is normally only important for debugging. If you don't know it doesn't apply to you :-)

All that matters for you is that 3.3 >= 3.2, so it should work fine; the hardware doesn't matter.

Cheers,

Erik


On Aug 8, 2007, at 12:25 AM, Anthony Cruz wrote:

Hi Erick,

Thank you for you responce.  I am sorry but I dont unterstand the term
"_binary_ identical results". The first simulation was run on a linux machine (pentium 4) with gromacs 3.2 from the rpm included in suse. The new machine will be (Pentium4 Xeon) with gromacs 3.3 (manual compiled) with SDSC"s Rocks clustering system. I think that the architecturesare more or less the same. I
am correct??? So I could continue the job in the new machine???

Best Regards,
Anthony

On Tuesday 07 August 2007 5:25 pm, Erik Lindahl wrote:
Hi Anthony,

As long as the version you're continuing with is the same or more
recent than the one you started with it should work fine; all gromacs
output files are stored in portable formats and are can be read by
newer versions.

You are not guaranteed _binary_ identical results, though - that
depends on the compiler, or if you are running on architectures where
we use tuned assembly loops.


Cheers,

Erik

On Aug 7, 2007, at 10:57 PM, Anthony Cruz wrote:
Hi users:
I have made some simulation in one of our workstation. Now I want
to extend
the simulations few nanoseconds. I can continue the simulations in
other
machine without affecting the results? I need to use the same gromacs
version?

Best Regards,

Anthony
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