decompose manually with given datafile

stephan · February 11, 2010, 16:59

Hi,

i need to decompose manually but i have no clue how the content of the necessary datafile should look like. Any ideas or experiences?
regards
stephan

stephan · March 2, 2010, 15:06

hi, finaly there is a nice solution from mattijs: the option -cellDist of the decompose-tool forces the decomposition method (all except manual - in case you don't have allready a file for the manual cell decomposition) to write a file with name "cellDist". This file contains essentially a labelList which has the size of the global mesh and contains for each cell one label. this label is the proc no. of the specific cell. So the format of the datafile needed to decompose manually is known. The user may modify the list appropriate to his wishes, changing the method of decomposition in decomposeParDict to manual (and the datafile name) and reuse the decompose-tool to generate a decomposition which was given in the datafile. For me this file was written in the 0-dir of the case and i needed to copy the file to the constant-dir of the case. Thanks Mattijs! Regards Stephan

February 11, 2010, 16:59	decompose manually with given datafile	#1
stephan Senior Member Stephan Gerber Join Date: Mar 2009 Location: Germany Posts: 118 Rep Power: 17	Hi, i need to decompose manually but i have no clue how the content of the necessary datafile should look like. Any ideas or experiences? regards stephan

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[Other] Manually divide sub-domain for parallel computing	duongquaphim	OpenFOAM Meshing & Mesh Conversion	11	February 11, 2018 08:20
Which way to decompose domain/grid	quarkz	Main CFD Forum	0	December 10, 2009 03:42
[ICEM] Formatted Point Datafile query	siw	ANSYS Meshing & Geometry	2	November 3, 2009 18:05
decompose with wallfunctions	linnemann	OpenFOAM Running, Solving & CFD	4	October 16, 2009 06:41
Howto manually merge a pst-file?	DrA	Siemens	2	December 6, 2005 08:57

March 2, 2010, 15:06		#2
stephan Senior Member Stephan Gerber Join Date: Mar 2009 Location: Germany Posts: 118 Rep Power: 17	hi, finaly there is a nice solution from mattijs: the option -cellDist of the decompose-tool forces the decomposition method (all except manual - in case you don't have allready a file for the manual cell decomposition) to write a file with name "cellDist". This file contains essentially a labelList which has the size of the global mesh and contains for each cell one label. this label is the proc no. of the specific cell. So the format of the datafile needed to decompose manually is known. The user may modify the list appropriate to his wishes, changing the method of decomposition in decomposeParDict to manual (and the datafile name) and reuse the decompose-tool to generate a decomposition which was given in the datafile. For me this file was written in the 0-dir of the case and i needed to copy the file to the constant-dir of the case. Thanks Mattijs! Regards Stephan