Hi all.

I have just installed GROMACS 4.0. My system consists of one hydroxide ion and 999 polarizable water molecules. When the system is minimized (using only one CPU) with a steepest descent minimizer, there are no problems. But when I try to minimize exactly the same system using 4 or 8 CPUs, I get the following error:

Reading file topol.tpr, VERSION 4.0 (double precision)
Making 1D domain decomposition 4 x 1 x 1
Steepest Descents:
   Tolerance (Fmax)   =  1.00000e+01
   Number of steps    =       100000

A list of missing interactions:
          exclusions of  14987 missing     -1

-------------------------------------------------------
Program mdrun4_d, VERSION 4.0
Source code file: domdec_top.c, line: 337

Software inconsistency error:
One or more interactions were multiple assigned in the domain decompostion
-------------------------------------------------------

"Microsecond Here I Come" (P.J. Van Maaren)

Error on node 0, will try to stop all the nodes
Halting parallel program mdrun4_d on CPU 0 out of 4

gcq#161: "Microsecond Here I Come" (P.J. Van Maaren)

Any ideas why this could be?

Regards
Andreas
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