I am using the CVS version (downloaded yesterday).<br><br>I am trying to include interactions between specific atoms (i.e. atom 1 and 40 are interacting and atom 30 and 80 are interacting). I am using "pairs" to do this. If I look at large systems, where two bodies can dissociated, I run into a problem with dynamics load balancing. Since "pairs" is considered a bonded interaction I need to set "-rdd" to a large value. If i do this, then I can not run on many nodes because the domains are forced to be too large. Is there an alternate way to include these interactions that won't run into this issue with DD? I have looked at the user defined potentials, but it appears you can only set the form of the potential, which is then used in "pairs".<br>
<br>-Pau<br>