Execution time problem after first write interval -- CFD Online Discussion Forums

July 25, 2008, 14:46	Hi, I am currently running Op	#1
sean_mcintyre New Member Sean McIntyre Join Date: Mar 2009 Location: State College, PA Posts: 11 Rep Power: 17	Hi, I am currently running OpenFOAM 1.4.1, and have been experiencing a problem with the solvers (currently rasInterFoam, though it has shown up with other solvers as well). When running parallel jobs, the execution time increases from about 15 seconds per time step to about 10000 seconds after the first write interval, and stays that way. Upon upgrading to 1.5, we still experienced the problem, which doesn't happen in single processor jobs. In 1.4.1-dev, it was less notable, only about doubling the execution time. Has anyone else been experiencing the same problems? If so, do you have any idea what's the cause? I have used both LAM and OpenMPI, and had the same problem. Thanks, Sean McIntyre

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