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<p>Hi,</p>
<p>I noticed that in GDAL >2.0 some utilities and operations support multi-threaded calculations, such as the gdalwarp utility. I tested it and it seems to work well. I can see that multiple CPU cores are busy.</p>
<p>Question 1: in gdalwarp there are at least two ways to tell that it should use more than one CPU:</p>
<p>-multi</p>
<p>and</p>
<p>-wo NUM_THREADS=ALL_CPUS or a nr of cores</p>
<p>Are these two flags redudant? Is either one enough or should I specify both?</p>
<p> </p>
<p>Question 2: can I also speed up the gdaladdo utility?</p>
<p>Thank you for your replies!</p>
<p>Andreas</p>
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