Hi; I am totally new to grid computing. I recently tried to run some sequence assembly process on a G5 (8Gb RAM) but the process did require more memory. I installed N1SGE6 on 3 MACs G5 under 10.4.7 (connected trough a router) (alltogheter 13Gb RAM) and I would like to run the assembly process in parallel trough the cluster hoping that memory resources would be sufficient for the process to complete. I would appreciate hints as to "for-dummies-fast-how-to" configure the cluster / submit the job properly. I installed master and hosts with defaults settings. First try with examples/simple.sh returns (w. qmon): No free slots for interactive job! while 5 PCUs are available. Any hint as to how to properly configure the cluster/project/queues/parallel environments; or to use qsub with usefull options -for a fast getting started- would be greatly appreciated; thanks. François