the simplest way to monitor the progress of computations, for example in a Do-loop, is perhaps using PrintTemporary[..]. All temporary printouts to the notebook running the computation are removed at the end of the computation. In ParallelDo however, the printouts remain. Does anybody know a workaround for this?
My guess would be something close to the following:
This code should fail
ParallelEvaluate[CreateDocument[{a, b, c}]]
because there is no FrontEnd process on the parallel kernel. Your question might be about the same issue, simply the front end cannot execute NotebookDelete command on the sub-kernels.