[mkgmap-dev] [PATCH v7] make maps in parallel

Thu May 14 12:09:57 BST 2009

Hi Martin,

Thanks for the info.

I am away now till Friday night so I am sorry that won't be able to look
at it until the weekend.

Cheers,

Mark

> Hi,
> 
> Did some testing, using file: 
> http://planet.openstreet.nl/planet-benelux-090513.osm.gz
> 
> Split with: java -Xmx2048m -jar splitter.jar --mapid=31303001 
> --max-nodes=500000 planet-benelux-090513.osm.gz
> 
> See outputs in the four directories at: http://www.amsk.nl/osmtest/ 
> (slowish host, sorry).
> 
> .../svn1035: mkgmap vanilla svn rev 1035
> .../patchv7*: mkgmap 1035 + mb-parallel-maps-v7.patch + 
> mb-fix-long-segments-v1.patch
> 
> The mkgmap-invocations are listed in the "cmdline" files in the 
> respective directories. Output and logging are in those directories as 
> well. I've removed the input-files (except in the svn1035 directory; the 
> others use the same input) and the gmapsupp.img-files (too large; let me 
> know if you need them).
> 
> Note especially the difference between "svn1035" and "patchv7_1thread" 
> (not identical), and between "patchv7_4threads" and 
> "patchv7_4threads.run2" (exact same inputs and commandline, different 
> output).
> 
> Hope this helps. If you need any other info/testing, let me know.
> 
> Regards,
> Martin
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