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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: mechy

Forum: OpenFOAM July 28, 2014, 02:08

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Hi the number of processors and also ... Hi the number of processors and also nCellsInCoarsestLevel 500; is very high set the following values: nCellsInCoarsestLevel ------> 20 to 50 numberOfSubdomains --------------->...

Forum: OpenFOAM September 1, 2013, 10:10

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy thanks for your answer I test it but it does... thanks for your answer I test it but it does not work for other patches Best Regards

Forum: OpenFOAM September 1, 2013, 09:27

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Hi Bruno thanks very much is there any... Hi Bruno thanks very much is there any command in decomposePar that forces whole of a boundary fall in a processor ? in other words if I have a boundary with name plate and this plate is in...

Forum: OpenFOAM September 1, 2013, 00:58

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Dear Bruno thanks so much for your reply ... Dear Bruno thanks so much for your reply what is the maximum value of nCellsInCoarsestLevel which is used in your problems ? and can you explain that how should I do trial-and-error to select...

Forum: OpenFOAM August 31, 2013, 15:14

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Dear Bruno thanks so much for your answer ... Dear Bruno thanks so much for your answer also, it is work well for me and at now the parallel is faster than the serial in some threads I read that the nCellsInCoarsestLevel should be equal to...

Forum: OpenFOAM August 31, 2013, 14:07

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Dear Bruno the results for above threads are... Dear Bruno the results for above threads are for different test case. I test a flow around a cylinder (for laminar condition ) and in serial run first time step consume 6 sec and in parallel run...

Forum: OpenFOAM August 30, 2013, 09:27

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy any help will be appreciated this is the... any help will be appreciated this is the decomposePar result : Build : 1.6-ext-22f6e2e40a1e Exec : decomposePar -force Date : Aug 30 2013 Time : 17:39:29 Host : yas-VGN-FW370J PID...

Forum: OpenFOAM August 13, 2013, 14:36

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy Hi my problem have 180000 cells and it is a... Hi my problem have 180000 cells and it is a 2d problem I have run the bellow command mpirun -np 2 pimpleFoam -parallel I have run on my laptop with intel cpu core 2 due

Forum: OpenFOAM August 13, 2013, 13:01

Replies: 18 parallel run is slower than serial run (pimpleFoam) !!! Views: 7,331 Posted By mechy parallel run is slower than serial run (pimpleFoam) !!! Hi all I have run flow around a cylinder and plate. I have test my problem in serial and parallel execution. but the serial run (1 proc) is more faster than parallel run (2 proc) ? how can I...

Showing results 1 to 9 of 9

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