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Parallella Community Supercomputing for Everyone 2013-10-09T02:34:41+00:00 https://parallella.org/forums/feed.php?f=34&t=534 2013-10-09T02:34:41+00:00 2013-10-09T02:34:41+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=4230#p4230 <![CDATA[Re: Object Detection]]> Statistics: Posted by notzed — Wed Oct 09, 2013 2:34 am

]]> 2013-10-04T20:17:30+00:00 2013-10-04T20:17:30+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=4165#p4165 <![CDATA[Re: Object Detection]]> Statistics: Posted by Greg Zuro — Fri Oct 04, 2013 8:17 pm

]]> 2013-09-25T13:09:07+00:00 2013-09-25T13:09:07+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=4006#p4006 <![CDATA[Re: Object Detection]]> Statistics: Posted by ysapir — Wed Sep 25, 2013 1:09 pm

]]> 2013-09-25T04:13:03+00:00 2013-09-25T04:13:03+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=4002#p4002 <![CDATA[Re: Object Detection]]> Statistics: Posted by notzed — Wed Sep 25, 2013 4:13 am

]]> 2013-09-25T01:20:23+00:00 2013-09-25T01:20:23+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=4000#p4000 <![CDATA[Re: Object Detection]]> Statistics: Posted by Gravis — Wed Sep 25, 2013 1:20 am

]]> 2013-09-24T12:19:59+00:00 2013-09-24T12:19:59+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3981#p3981 <![CDATA[Re: Object Detection]]> Statistics: Posted by notzed — Tue Sep 24, 2013 12:19 pm

]]> 2013-09-09T01:38:52+00:00 2013-09-09T01:38:52+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3779#p3779 <![CDATA[Re: Object Detection]]> Statistics: Posted by notzed — Mon Sep 09, 2013 1:38 am

]]> 2013-09-04T23:44:43+00:00 2013-09-04T23:44:43+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3712#p3712 <![CDATA[Re: Object Detection]]> Statistics: Posted by Gravis — Wed Sep 04, 2013 11:44 pm

]]> 2013-09-04T23:34:01+00:00 2013-09-04T23:34:01+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3710#p3710 <![CDATA[Re: Object Detection]]> Statistics: Posted by aolofsson — Wed Sep 04, 2013 11:34 pm

]]> 2013-09-04T23:07:03+00:00 2013-09-04T23:07:03+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3706#p3706 <![CDATA[Re: Object Detection]]> Statistics: Posted by notzed — Wed Sep 04, 2013 11:07 pm

]]> 2013-09-04T16:42:26+00:00 2013-09-04T16:42:26+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3704#p3704 <![CDATA[Re: Object Detection]]> Statistics: Posted by Gravis — Wed Sep 04, 2013 4:42 pm

]]> 2013-09-04T12:19:00+00:00 2013-09-04T12:19:00+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3702#p3702 <![CDATA[Re: Object Detection]]>


I have some multi-core numbers now too, although they don't mean much other than in relative terms.

Statistics: Posted by notzed — Wed Sep 04, 2013 12:19 pm

]]> 2013-08-30T03:40:37+00:00 2013-08-30T03:40:37+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3635#p3635 <![CDATA[Re: Object Detection]]>


PS the dma-abort hack did end up causing problems, but i found a way to not need it.

Statistics: Posted by notzed — Fri Aug 30, 2013 3:40 am

]]> 2013-08-28T20:25:04+00:00 2013-08-28T20:25:04+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3618#p3618 <![CDATA[Re: Object Detection]]> Statistics: Posted by LamsonNguyen — Wed Aug 28, 2013 8:25 pm

]]> 2013-08-28T12:15:05+00:00 2013-08-28T12:15:05+00:00 https://parallella.org/forums/viewtopic.php?t=534&p=3610#p3610 <![CDATA[Re: Object Detection]]>
After adding a 12x12 dma chained with the image window load: assembly version is under 1s, and the c version is just over 2s.

Yep, 1 epiphany cpu is now beating 1 arm core, even if it took hand-written assembly to do it ...

I also tried a bunch of other stuff like double-buffering and shaved a bit more off it, but it's getting a bit academic and none of the numbers are really verified.

FWIW I tried aborting the read-ahead dma, despite your warning on the other thread. I write 0 to the dma config register immediately followed by the new descriptor. They're writing to the same buffer. It appears to work and shaves another 0.06s off the running time (but as it's very tricky to validate i haven't verified the total calculation; it may just be luck it appears to work with my test case).

Statistics: Posted by notzed — Wed Aug 28, 2013 12:15 pm

]]>