On 22 May 2012 13:02, Eric Anholt <span dir="ltr"><<a href="mailto:eric@anholt.net" target="_blank">eric@anholt.net</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On Fri, 11 May 2012 11:03:50 -0700, Paul Berry <<a href="mailto:stereotype441@gmail.com">stereotype441@gmail.com</a>> wrote:<br>
> When executing a blorp operation on Gen7 that does not need a WM<br>
> program (i.e. a HiZ operation), we use 32-pixel dispatch mode because<br>
> it's faster. However, when executing a blorp operation that does need<br>
> a WM program, we need to use 16-pixel dispatch, because blorp WM<br>
> programs are compiled assuming 16-pixel dispatch.<br>
<br>
</div>I didn't think dispatch mode means anything unless you're actually<br>
dispatching a thread (though I could see how having no dispatch mode set<br>
might anger things). Basically, I'm thinking just always set 16, unless<br>
there is some efficiency reason I don't know of.<br>
</blockquote></div><br>I don't honestly know. Chad, I inherited the 32-pixel dispatch from your HiZ code, and assumed you did it on purpose because it was faster. But I didn't actually do any tests. Do you have any thoughts about this?<br>