Brad, can you construct and send me a minimal example, maybe two islands, which typically exhibits the behavior, with a printout of information when the problem occurs? We've been putting a lot of effort into the distributed evaluator lately (Alberto: warning!) and have changed a lot of stuff there, but that should not have any effect on the island model code: however I've not examined the island model code in a while and there may be some bit rot somewhere. Sean On Feb 3, 2008, at 4:03 PM, Bradford Barr wrote: > I emailed the list about this same problem a while ago but I still > haven't found a solution. > > My island model is aborting because of an incorrect read of the > genotype (number of trees). I added a little output to > writeGenotype to make sure I was writing the correct number of > trees, that looks fine. > > Any insight to this problem would be greatly appreciated. > > Thanks in advance, > Brad Barr