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IDProjectCategoryView StatusLast Update
0001326OpenFOAMBugpublic2015-02-24 17:01
Reporteruser299Assigned Tohenry  
Status closedResolutionno change required 
PlatformLinuxOSUbuntuOS Version14.04 LTS
Summary0001326: mapFields is missing -parallelSource and parallelTarget, -parallel extremly slow (only useful for cavity case)
DescriptionI have noticed that the flags -parallelSource and -parallelTarget have been removed for mapFields.
The replacement(?) -parallel is extremely slow and can not be used for larger cases.
TagsNo tags attached.



2014-06-13 09:01


The mapFields requires your processor domains to be as convex as possible for efficiency.


2015-02-05 09:14

manager   ~0003680

If the -parallelSource and -parallelTarget are preferable to actually running the mapping in parallel under some circumstances we could re-introduce support for the original options but it increases complexity and maintenace overhead significantly so we would need very good reasons to do so. Could you provide timings for the options for a range of cases and decompositions to demonstrate the need to re-introduce the old options?


2015-02-05 12:53


The parallel mapFields uses conservative mapping ('cellVolumeWeight') by default which is slow since it has to do full tet-tet overlap calculations. The old behaviour is like the 'direct' method. Does using this method help?


2015-02-24 17:01

manager   ~0003888

Orphaned report

Issue History

Date Modified Username Field Change
2014-06-12 17:47 user299 New Issue
2014-06-13 09:01 user4 Note Added: 0003133
2015-02-05 09:14 henry Note Added: 0003680
2015-02-05 12:53 user4 Note Added: 0003694
2015-02-24 17:01 henry Note Added: 0003888
2015-02-24 17:01 henry Status new => closed
2015-02-24 17:01 henry Assigned To => henry
2015-02-24 17:01 henry Resolution open => no change required