Parallel simulation on STAR-CCM+ 11.06.010-R8

Hosseinmgh_chemeng · June 8, 2017, 04:29

Dear colleagues and friends;
I want to simulate 90,000 particles with 10mm and 15 mm diameter in a container.
I decide to run this simulation on a PC with 64 core i7 Intel Xeon 1.6 Ghz. on windows server 2016 in parallel mode. I set the simulation "parallel on localhost". But when I adjust the simulation on parallel mode, it is too slow
to run relative to the series mode.
However, I tested this simulation on a quad Core i7 3.4 Ghz. cores in parallel mode and the simulation became much faster than previous one.

- Could any one help me to make the simulation faster on the 64 cores PC ?

BR

ping · August 30, 2017, 08:21

lagrangian solving is very different to eulerian flow solving with one of the main issues being the partitioning required by the particle solver changes with time so you might find that dynamic partitioning helps which is far more important for unstready cases
i would also search on the steve support portal for other speed up tips

June 8, 2017, 04:29	Parallel simulation on STAR-CCM+ 11.06.010-R8	#1
Hosseinmgh_chemeng New Member Hossein M.Ghasemi Join Date: Jun 2017 Posts: 1 Rep Power: 0	Dear colleagues and friends; I want to simulate 90,000 particles with 10mm and 15 mm diameter in a container. I decide to run this simulation on a PC with 64 core i7 Intel Xeon 1.6 Ghz. on windows server 2016 in parallel mode. I set the simulation "parallel on localhost". But when I adjust the simulation on parallel mode, it is too slow to run relative to the series mode. However, I tested this simulation on a quad Core i7 3.4 Ghz. cores in parallel mode and the simulation became much faster than previous one. - Could any one help me to make the simulation faster on the 64 cores PC ? BR

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August 30, 2017, 08:21		#2
ping Senior Member Ping Join Date: Mar 2009 Posts: 556 Rep Power: 20	lagrangian solving is very different to eulerian flow solving with one of the main issues being the partitioning required by the particle solver changes with time so you might find that dynamic partitioning helps which is far more important for unstready cases i would also search on the steve support portal for other speed up tips