[gdal-dev] problem accessing rows of an image in parallel

[Yann Chemin]

Hello list,

I am working on an OpenMP implementation of an image processing
algorithm and was wondering if there is a known problem in accessing
different rows at the same time on the same band handle.

sometimes I get this (or similar):
ERROR 1: TIFFFillStrip:b4.tif: Seek error at scanline 186, strip 345
ERROR 1: TIFFReadEncodedStrip() failed.

ERROR 1: IReadBlock failed at X offset 0, Y offset 345
ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 345
ERROR 1: TIFFFillStrip:b4.tif: Seek error at scanline 1269, strip 157
ERROR 1: TIFFReadEncodedStrip() failed.

ERROR 1: IReadBlock failed at X offset 0, Y offset 157
ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 157

On the original standard serial code, all is fine.
Thanks for any suggestions,
Yann

-- 
Yann Chemin
Perso: http://www.freewebs.com/ychemin
YiKingDo: http://yikingdo.unblog.fr/