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Parallella Community Supercomputing for Everyone 2013-10-05T19:33:29+00:00 https://parallella.org/forums/feed.php?f=9&t=650 2013-10-05T19:33:29+00:00 2013-10-05T19:33:29+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4178#p4178 <![CDATA[Re: Updated Epiphany Reference Manual]]> http://www.adapteva.com/uncategorized/e ... ce-manual/

Statistics: Posted by Gravis — Sat Oct 05, 2013 7:33 pm

]]> 2013-10-05T08:47:00+00:00 2013-10-05T08:47:00+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4172#p4172 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by timpart — Sat Oct 05, 2013 8:47 am

]]> 2013-10-04T11:50:15+00:00 2013-10-04T11:50:15+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4154#p4154 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by aolofsson — Fri Oct 04, 2013 11:50 am

]]> 2013-10-04T10:48:57+00:00 2013-10-04T10:48:57+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4153#p4153 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by timpart — Fri Oct 04, 2013 10:48 am

]]> 2013-10-01T21:59:49+00:00 2013-10-01T21:59:49+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4088#p4088 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by timpart — Tue Oct 01, 2013 9:59 pm

]]> 2013-10-01T17:42:06+00:00 2013-10-01T17:42:06+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4087#p4087 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by aolofsson — Tue Oct 01, 2013 5:42 pm

]]> 2013-10-01T11:31:45+00:00 2013-10-01T11:31:45+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4086#p4086 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by timpart — Tue Oct 01, 2013 11:31 am

]]> 2013-10-01T07:15:50+00:00 2013-10-01T07:15:50+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4084#p4084 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by hewsmike — Tue Oct 01, 2013 7:15 am

]]> 2013-10-01T06:57:51+00:00 2013-10-01T06:57:51+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4083#p4083 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by timpart — Tue Oct 01, 2013 6:57 am

]]> 2013-10-01T05:36:29+00:00 2013-10-01T05:36:29+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4082#p4082 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by notzed — Tue Oct 01, 2013 5:36 am

]]> 2013-10-01T02:57:45+00:00 2013-10-01T02:57:45+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4081#p4081 <![CDATA[Re: Updated Epiphany Reference Manual]]> Statistics: Posted by aolofsson — Tue Oct 01, 2013 2:57 am

]]> 2013-10-01T02:29:24+00:00 2013-10-01T02:29:24+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4079#p4079 <![CDATA[Re: Updated Epiphany Reference Manual]]>
I noticed you clarified what '!interrupted' means in idle, thanks. And now the sync interrupt name makes sense too.

Of course some more questions spring immediately to mind after a quick browse (sorry!) and might be worth considering for it's release if not already in the pipeline:

How are sync/wand/mbkpt is propagated, e.g. via write mesh or separate oob signal? Is it only on-chip? Which mesh does multicast use/can it work over external links? Are there alignment restrictions/deadlock caveats with gie+wand+idle as per the gie+idle thread? How is the membership of the group specified for wand? (as in 'When all cores in a group have set their respective wand bits').

Statistics: Posted by notzed — Tue Oct 01, 2013 2:29 am

]]> 2013-09-30T07:14:08+00:00 2013-09-30T07:14:08+00:00 https://parallella.org/forums/viewtopic.php?t=650&p=4062#p4062 <![CDATA[Updated Epiphany Reference Manual]]>
Thanks to notzed and others asking the tough questions, I have decided to publish the updated Epiphany architecture specifications as-is.
The manual still needs editing, but at all the information/tables should be correct.

http://www.adapteva.com/docs/epiphany_a ... .09.29.pdf

You will notice many new multicore features and registers in the specifications. These features were always in the silicon but we never had the bandwidth to properly validate them post-silicon. Much gratitude goes out to our summer interns from WPI (Xin and Wenlin) who worked non-stop this summer to test some of these crazy features. The examples they put together can be found here:

https://github.com/adapteva/epiphany-examples

Cheers,
Andreas

Statistics: Posted by aolofsson — Mon Sep 30, 2013 7:14 am

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