Hi Jesper,
This occurs when you ask for a number of steps that exceed the
the size of an integer! I got the same problem recently ...
The only solution I found was to make a new mdp file where t0
is the old time and asking for the extension you need ... you can
give trr and edr files to grompp so the tpr file is a continuation of
earlier one ...
XAvier.
On Feb 24, 2011, at 11:50 AM, Jesper Sørensen wrote:
Hi,
I am trying to extend the run time in tpr file to include more steps
using tpbconv…
This has worked well for a while, but now I get two errors…
One is that it writes “now -2074660000 steps”, which doesn’t make
sense – why is this number negative…
Also, “You've simulated long enough. Not writing tpr file”
If I extend the simulation using the –nsteps flag, then it will
write the tpr file, but still comes up with negative numbers whens
starting mdrun with the file, which mdrun does not exactly like.
Output is a s follows:
READING COORDS, VELS AND BOX FROM TRAJECTORY ../
T305/512DPPC_9728W_305K_625ns.trr...
trn version: GMX_trn_file (single precision)
Read trr frame 4166: step 2124660000 time 53116500.000
Using frame of step 2124660000 time 5.31165e+07
Extending remaining runtime of by 625000 ps (now -2074660000 steps)
You've simulated long enough. Not writing tpr file
Best regards,
Jesper
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