Le 22/08/2012 22:51, Stephen a écrit :
> My most common change is to the INI file where I add the line
> Render_Block_Size=8
> I feel that this speeds up the render at the end when I have 7 cores
> idle waiting on the last core to render a 32 by 32 block.


If the Render_Block_Size is only an addition (not a change of value from
the ini file), and you are on a Unix port, what about setting it in your
$HOME/.povray/3.7/povray.ini ?
(On the windows port, it's kind of "MAster povray.ini" in Tools sub menu)

Comments (0.01€) about reducing the block size: it might be quicker in
the end, but it comes with an increased communication between the
rendering threads and the "storage" thread. Instead of 1 messages for
32x32, a 8x8 will generates 16 messages ( (32/8)^2 ).


(There is no perfect value: too small gives a large overhead of message
with fine granularity, too large gives less overhead but coarser
granularity with numerous cores. Choose your own balance: if it please
you, it's the right value)

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