[gdal-dev] [NEW] Multi-threaded warping

[Seth Price]

If you tell OpenCL to target the CPU, it will produce a multiprocessor implementation instead of GPU.
~Seth


via iPhone

On Jun 10, 2012, at 3:52 PM, Even Rouault <even.rouault at mines-paris.org> wrote:

> Le dimanche 10 juin 2012 23:44:54, Yogesh Dahiya a écrit :
>> As far I know gdal1.9 has integrated opencl so we can parallelize by
>> setting it right.
>> So what exactly is your addition.
>> By the way I tried opencl case and was able to get 16x over general case
>> for lanczos for image of 16000*16000
> 
> (Replying to list too, as others might have the same question)
> 
> Yes indeed, GDAL 1.9 can use OpenCL and this implementation is of course still 
> available.
> 
> Unfortunately, AFAIK, there is not yet any working OpenSource OpenCL 
> implementation (and my experience with some proprietary OpenCL implementation 
> has not always been convincing, like the GUI being totally unresponsive during 
> the processing).
> 
> The new multi-threaded implementation just uses traditional multi-threading 
> technics that are available on all platforms where GDAL can run.
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