[ESPResSo-users] Calculation of the interaction energies in "object in fluid"

[gianmarco]

Hi,

I'm writing this e-mail because I'm trying to calculate the interaction 
energies between two cellular meshes, created with the help of the 
Espresso package "object in fluid". I created a system composed of two 
cells of types 0 and 1, respectively, and tried to calculate the 
corresponding interaction energies with the command

ene=system.analysis.energy()


The following error occurs (the first five rows are only a part, due to 
the large number of rows of the same type):


ERROR: add_bonded_energy: bond type (15) of atom 341 unknown

ERROR: add_bonded_energy: bond type (15) of atom 398 unknown

ERROR: add_bonded_energy: bond type (15) of atom 624 unknown

ERROR: add_bonded_energy: bond type (15) of atom 41 unknown

ERROR: add_bonded_energy: bond type (15) of atom 401 unknown

Traceback (most recent call last):
  File "cell_fluid.py", line 259, in <module>
    ene=system.analysis.energy()
  File "espressomd/analyze.pyx", line 700, in 
espressomd.analyze.Analysis.energy 
(/home/user/espresso-4.0.0/particle/src/python/espressomd/analyze.cpp:8417)
  File "espressomd/utils.pyx", line 269, in 
espressomd.utils.handle_errors 
(/home/user/espresso-4.0.0/particle/src/python/espressomd/utils.cpp:7157)
Exception: calc_long_range_energies failed: ERROR: add_bonded_energy: 
bond type (17) of atom 642 unknown


The command seems to be recognized, therefore I suppose that there is 
another reason...

Does anyone knows how to fix this problem?


Thank you in advance for you answers

Regards