John Mitchell wrote:
I get the following error when running gdalwarp with the -multi switch:
gdalwarp -multi -tr 1.2 1.2 -rc -s_srs EPSG:26917 -t_srs EPSG:26917
-co bigtiff=yes -q "17RMP395060.tif"
"/tmp/gvAppTemp/gvApp2/m2.tiftemp"
ERROR 1: CPLCreateThread() failed in ChunkAndWarpMulti()
ERROR 1: CPLCreateThread() failed in ChunkAndWarpMulti()
The -multi switch causes the error but if I take out the -multi switch
then the command completes.
When I do the same command on an older linux server with the -multi
switch then the command does not error off, so it could be that the
newer server has a later version of gdal that does not like -multi.
The command will work without the -multi switch which I believe is
supposed to run the gdalwarp command in multithreaded mode which in
theory should be faster.
On a 64 bit version of gdal running on a 64 bit linux does performance
improve at all if the -multi switch is included and if so how can I
prevent this error from occurring when using the -multi switch.
John,
It likely means the GDAL was built without threading support. If you
build yourself, consider using the --with-threads configure option.
Best regards,
--
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up | Frank Warmerdam, [email protected]
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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