[gmx-users] Error in volume coupling, no domain decomposition

[soumadwip ghosh]

Hi,
    Is there a possibility that your system is too small and thus the
domain decomposition can't take place within the 16 processor you are
using? Try to alter the number of terminals using -nt ( keep 1) option or
play around with decreasing the time step or increasing the box length.
Follow the link below

http://www.gromacs.org/Documentation/Errors#There_is_no_domain_decomposition_for_n_nodes_that_is_compatible_with_the_given_box_and_a_minimum_cell_size_of_x_nm