I have a DEM model in MFIX and I have set the maximum iterations to 400 and the stop time to 400s.
When I ran the model, it reached 257s and then stopped. Can anybody explain why it would have stopped before the time I specified or if this is to do with storage etc?
Please provide more details, what output did you get in the console when it stopped? It could stop due to numerical instability (look for “DTMIN reached” message), reaching the end of allotted time (look for “REQUESTED CPU TIME LIMIT REACHED” message). If it stopped without any message in the middle of an iteration, this would typically be a either a floating point error, like a division by zero, or a communication issue if running in parallel (DMP). This would require some debugging to know exactly what happened.