View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0003849||OpenFOAM||Feature||public||2022-06-17 14:49||2022-06-17 17:12|
|Priority||none||Severity||trivial||Reproducibility||have not tried|
|Status||closed||Resolution||no change required|
|Platform||Unix||OS||centos 7||OS Version||(please specify)|
|Fixed in Version|
|Summary||0003849: 1024^3 grid can not be created by blockMesh|
|Description||I tried to create 1024 cell all three direction totally order of 1 billion cell but I couldn't get it. |
hex (0 1 2 3 4 5 6 7) (1024 1024 1024) simpleGrading (1 1 1)
I tried this on hpc system which has 510 gb memory. Output of blockMesh can be found in attachment.
I tried to get same mesh on my computer (64gb memory) by Pointwise v18.1R2 and I could create mesh. Pointwise create 150gb polyMesh files for this mesh. So it is not memory issue.
When I tried to use polyMesh files which created by Pointwise I came a cross error might be same problem in blockMesh it exceed the integer limit. Number of faces exceed the limit of integer.
--> FOAM FATAL IO ERROR: (openfoam-2012)
incorrect first token, expected <int> or '(', found on line 10: double 3.21494e+09
I guess when OpenFOAM was written no one think about face number can exceed integer limit ))
|Tags||No tags attached.|
slurm-585989.out (1,866 bytes)
To create a mesh with that many cells you will need to compile OpenFOAM-9 or dev with 64bit labels.
> I guess when OpenFOAM was written no one think about face number can exceed integer limit
I did and added 64bit label support as an option.
|2022-06-17 14:49||daronciyakian||New Issue|
|2022-06-17 14:49||daronciyakian||File Added: slurm-585989.out|
|2022-06-17 17:10||henry||Priority||normal => none|
|2022-06-17 17:10||henry||Severity||feature => trivial|
|2022-06-17 17:10||henry||Category||Bug => Feature|
|2022-06-17 17:11||henry||Note Added: 0012627|
|2022-06-17 17:12||henry||Assigned To||=> henry|
|2022-06-17 17:12||henry||Status||new => closed|
|2022-06-17 17:12||henry||Resolution||open => no change required|
|2022-06-17 17:12||henry||Note Added: 0012628|