[FWTools] memory leaking in AMD ??

Frank Warmerdam warmerdam at pobox.com
Thu Dec 11 21:01:24 UTC 2008

Edwin Husni Sutanudjaja wrote:
> Dear Frank and all,
> Thanks a lot for your help related my previous question.
> If you don't mind, I have another question.
> I need to repeat running "cs2cs" for several times (about 1440 * 1560 
> times = 2246400 times).
> For this reason, I typed a Phyton code (please see the attachement).
> At the first time, I run this python code in my new PC (AMD Athlon Dual 
> Core 5200B 2.69 GHz, 1.75 GB of RAM, Windows XP). However the 
> calculation stopped in the step i = 8754, and I cannot run "cs2cs" 
> anymore (and other program as well) before restarting my computer.
> However, if I try this python script in my old PC (Pentium 4 3.06 Ghz, 
> 520 MB RAM), it seems everything is OK. Until this moment (i = 50000) 
> the calculation is still OK. (The calculation is still currently running).
> For additional information, similar things also sometimes happen if I 
> use GDAL. The computer performance is more stabile in my old PC.
> Could you give me any clues? Why? What are the reasons of the problem in 
> my new PC?


Nothing leaps to my mind except to note that you can pipe multiple points
through cs2cs.  I get the impression you are running it once for each point
which is terribly expensive.

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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