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[mkgmap-dev] memory requirements for generating planet bounds

From Thorsten Kukuk kukuk at suse.de on Thu Feb 14 15:25:19 GMT 2013

Hi,

On Thu, Feb 14, Rich wrote:

> as per 
> http://wiki.openstreetmap.org/wiki/Mkgmap/help/options#Using_preprocessed_bounds_for_the_address_index 
> , i tried to generate bounds myself from a planet boundary extract 
> (prepared with osmconvert/osmfilter like in the instructions on the same 
> page).
> 
> java -cp mkgmap.jar 
> uk.me.parabola.mkgmap.reader.osm.boundary.BoundaryPreprocessor 
> <inputfile> <boundsdirectory>
> 
> that run out of the heap space of 2300 megs. before i try experimenting 
> further, how much heap space is required for creating planet bounds from 
> boundary extract ? :)

You need at least 8GB of free RAM. And I would suggest Sun/Oracle Java,
not IBM Java or openjdk.

  Thorsten

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Thorsten Kukuk, Project Manager/Release Manager SLES
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