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Kiwi takes three arguments; a score file, an output file, and an integer indicating how many processes to use. Make sure to check the load of the machine before starting Kiwi. Do not start more processes than there are actual processors. Make sure that there is enough virtual memory available. The nice command will reduce your priority so that others will still be able to work. The output file will grow large. Make sure the partition you are using does not fill up. Kiwi uses the Encore Parallel Threads library. This threads library seems to have two odd behaviors. First, threads programs cannot be run in background. Attempting to do so results in being logged off. Second, if you interrupt a threads program it will make a core dump. In the case of Kiwi, this core dump is VERY large, so make sure to delete it. Always check for runaway Kiwi jobs before logging off.