Sunil Thapa wrote:
Respectable Mark/Berk/David
I am trying to study diffusion of oxygen in water at a constant pressure of 1 bar. When I run the production run of 1 ns then I get an warning message as follows and the run terminates. Please try to figure out what might have been wrong. Grid: 35 x 35 x 35 cells
WARNING: your box is exploding! (ncells = 42875)

There's the main problem. See http://wiki.gromacs.org/index.php/blowing_up

           Step           Time         Lambda
          17200       34.40000        0.00000
   Rel. Constraint Deviation:  Max    between atoms     RMS
       Before LINCS         1.000000      1      2   1.000000
        After LINCS         1.000000      1      2   1.000000

The line below is some other issue.

Fatal error: Can not read/write topologies to file type unknown

Mark
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