<div><p class="" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">Hi,</span></p><p class="" style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;font-size:12pt">Subdividing render image in
tiles has very inconsistent behavior in CPU and GPU: more tiles are good for
CPU, BUT less are better for GPU.</span></p>
<p class="" style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;font-size:12pt">With my i7, 8x8 is ok. With
my GTX 560 Ti, 1x1 is the best. With another dual GTX 590 system, I've found
3x3 to be fastest...</span><br></p>
<p class="" style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;font-size:12pt">Problem: with 8x8 as default, non-advised GPU users are experiencing longer render times.</span><br></p>
<p class="" style="margin-bottom:0.0001pt"><span style="font-family:Arial,sans-serif;font-size:12pt">In last builds, tiles
became pixel based, what is not good for GPU users, as long as we should now set
it up for equal image size and this can change a lot for preview. And as strange
as it gets, I’ve found that tile size of 1920x1080 is fast even for a 960x540
render…</span></p>
<p class="" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif"> </span></p>
<p class="" style="margin-bottom:0.0001pt"><span lang="EN-US" style="font-size:12pt;font-family:Arial,sans-serif">I think this is getting
messy.</span></p></div><div><br></div><div><br></div><div><div>Adriano A. Oliveira</div><div><br></div></div>