During developement of PoJACT-R we encounter problem with tons of logs. Cognitive cycle of ACT-R lasts 50ms and each cycle outputs houndreds of log lines. jACT-R uses technology log4j (see http://logging.apache.org/log4j/1.2/index.html ) for logging, so easiest way was overide Pogamut logging and redirect all logs to log4j. User can configure outputs, appenders and filters through XML configuration file, which is set in module class of agent.