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August 24, 2015, 11:19 |
decomposePar -allRegions
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#1 | |
New Member
Stefan Runkel
Join Date: Oct 2014
Posts: 2
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Hello,
I want to run a chtMultiRegionFoam case in parallel. To decompose this case im using Quote:
Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.4.0 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "system"; object decomposeParDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // numberOfSubdomains 4 -> 8; method scotch; Code:
Create time Decomposing all regions in regionProperties Decomposing mesh fluid1 Create mesh Calculating distribution of cells Selecting decompositionMethod scotch Finished decomposition in 6.94 s Calculating original mesh data Distributing cells to processors Distributing faces to processors Distributing points to processors Constructing processor meshes Processor 0 Number of cells = 1034188 Number of faces shared with processor 1 = 4896 Number of faces shared with processor 3 = 5955 Number of processor patches = 2 Number of processor faces = 10851 Number of boundary faces = 273919 Processor 1 Number of cells = 1031395 Number of faces shared with processor 0 = 4896 Number of faces shared with processor 2 = 3133 Number of faces shared with processor 3 = 2245 Number of processor patches = 3 Number of processor faces = 10274 Number of boundary faces = 273788 Processor 2 Number of cells = 1033559 Number of faces shared with processor 1 = 3133 Number of faces shared with processor 3 = 5202 Number of processor patches = 2 Number of processor faces = 8335 Number of boundary faces = 272371 Processor 3 Number of cells = 1039273 Number of faces shared with processor 0 = 5955 Number of faces shared with processor 1 = 2245 Number of faces shared with processor 2 = 5202 Number of processor patches = 3 Number of processor faces = 13402 Number of boundary faces = 282097 Number of processor faces = 21431 Max number of cells = 1039273 (0.451308% above average 1034604) Max number of processor patches = 3 (20% above average 2.5) Max number of faces between processors = 13402 (25.07116% above average 10715.5) Time = 0 Processor 0: field transfer Processor 1: field transfer Processor 2: field transfer Processor 3: field transfer Decomposing mesh fluid2 Create mesh Calculating distribution of cells Selecting decompositionMethod scotch Finished decomposition in 1.77 s Calculating original mesh data Distributing cells to processors Distributing faces to processors Distributing points to processors Constructing processor meshes Processor 0 Number of cells = 507416 Number of faces shared with processor 1 = 156 Number of processor patches = 1 Number of processor faces = 156 Number of boundary faces = 382890 Processor 1 Number of cells = 509015 Number of faces shared with processor 0 = 156 Number of faces shared with processor 3 = 168 Number of processor patches = 2 Number of processor faces = 324 Number of boundary faces = 383122 Processor 2 Number of cells = 511338 Number of faces shared with processor 3 = 188 Number of processor patches = 1 Number of processor faces = 188 Number of boundary faces = 385024 Processor 3 Number of cells = 510299 Number of faces shared with processor 1 = 168 Number of faces shared with processor 2 = 188 Number of processor patches = 2 Number of processor faces = 356 Number of boundary faces = 385170 Number of processor faces = 512 Max number of cells = 511338 (0.3573973% above average 509517) Max number of processor patches = 2 (33.33333% above average 1.5) Max number of faces between processors = 356 (39.0625% above average 256) Time = 0 Processor 0: field transfer Processor 1: field transfer Processor 2: field transfer Processor 3: field transfer Decomposing mesh solid Create mesh Calculating distribution of cells Selecting decompositionMethod scotch Finished decomposition in 0.78 s Calculating original mesh data Distributing cells to processors Distributing faces to processors Distributing points to processors Constructing processor meshes Processor 0 Number of cells = 227051 Number of faces shared with processor 1 = 78 Number of faces shared with processor 2 = 71 Number of processor patches = 2 Number of processor faces = 149 Number of boundary faces = 137585 Processor 1 Number of cells = 226546 Number of faces shared with processor 0 = 78 Number of processor patches = 1 Number of processor faces = 78 Number of boundary faces = 137340 Processor 2 Number of cells = 225765 Number of faces shared with processor 0 = 71 Number of faces shared with processor 3 = 71 Number of processor patches = 2 Number of processor faces = 142 Number of boundary faces = 136506 Processor 3 Number of cells = 225724 Number of faces shared with processor 2 = 71 Number of processor patches = 1 Number of processor faces = 71 Number of boundary faces = 136687 Number of processor faces = 220 Max number of cells = 227051 (0.3444976% above average 226271.5) Max number of processor patches = 2 (33.33333% above average 1.5) Max number of faces between processors = 149 (35.45455% above average 110) Time = 0 Processor 0: field transfer Processor 1: field transfer Processor 2: field transfer Processor 3: field transfer End. Can anybody tell me what I'm missing? Thanks a lot. Stefan |
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August 24, 2015, 15:00 |
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#2 | |
Member
VA
Join Date: Mar 2015
Location: ON, Canada
Posts: 30
Rep Power: 11 |
Quote:
I believe your case has three regions i.e. fluid1, fluid2 and solid. In order for your decomposeparDict file to work correctly you need to make sure that the contents of decomposeparDict in system/decomposeparDict are the same as the ones in the subfolders i.e. system/fluid1/decomposeparDict , system/fluid2/decomposeparDict and system/solid/decomposeparDict. So, whenever you change the decomposeparDict file in system/decomposeparDict, you can just copy the file and paste it in the sub-folders (system/<region name>/). Hope that helps! |
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August 25, 2015, 03:58 |
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#3 |
New Member
Stefan Runkel
Join Date: Oct 2014
Posts: 2
Rep Power: 0 |
Now it's working.
Thanks vabishek. |
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