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Parallella Community Supercomputing for Everyone 2015-05-30T12:50:26+00:00 https://parallella.org/forums/feed.php?f=18&t=28 2015-05-30T12:50:26+00:00 2015-05-30T12:50:26+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=14135#p14135 <![CDATA[Re: OpenCL is the best.]]> Thank you for your response, i will have a look for MPI

Gideon

Statistics: Posted by Gideon — Sat May 30, 2015 12:50 pm

]]> 2015-05-28T03:33:41+00:00 2015-05-28T03:33:41+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=14107#p14107 <![CDATA[Re: OpenCL is the best.]]>
-DAR

Statistics: Posted by dar — Thu May 28, 2015 3:33 am

]]> 2015-05-28T01:58:25+00:00 2015-05-28T01:58:25+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=14106#p14106 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by Gideon — Thu May 28, 2015 1:58 am

]]> 2013-01-03T10:49:07+00:00 2013-01-03T10:49:07+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=455#p455 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by dar — Thu Jan 03, 2013 10:49 am

]]> 2013-01-03T04:05:59+00:00 2013-01-03T04:05:59+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=442#p442 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by notzed — Thu Jan 03, 2013 4:05 am

]]> 2012-12-20T13:52:25+00:00 2012-12-20T13:52:25+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=282#p282 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by Ariemeth — Thu Dec 20, 2012 1:52 pm

]]> 2012-12-21T12:43:24+00:00 2012-12-20T06:14:13+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=275#p275 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by dar — Thu Dec 20, 2012 6:14 am

]]> 2012-12-20T13:57:12+00:00 2012-12-20T02:52:55+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=273#p273 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by Ariemeth — Thu Dec 20, 2012 2:52 am

]]> 2012-12-19T17:51:08+00:00 2012-12-19T17:51:08+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=251#p251 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by dar — Wed Dec 19, 2012 5:51 pm

]]> 2012-12-19T17:29:47+00:00 2012-12-19T17:29:47+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=249#p249 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by dar — Wed Dec 19, 2012 5:29 pm

]]> 2012-12-18T12:48:47+00:00 2012-12-18T12:48:47+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=175#p175 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by calufrax — Tue Dec 18, 2012 12:48 pm

]]> 2012-12-18T02:20:03+00:00 2012-12-18T02:20:03+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=149#p149 <![CDATA[Re: OpenCL is the best.]]>
For example, Epiphany doesn't have OpenCL Local Memory, Constant Memory, Caches, or multiple Compute Units. Instead there is a single Compute Unit built from many Processing Elements which each have a very large amount of Private Memory compared to GPUs. OpenCL also lacks a mechanism for moving data between Processing Elements' Private Memory. The term "Private Memory" is obviously a bit of a misnomer here when it is being shared between Processing Elements. See the overly simplified, cheesy diagram attachment below.

The Epiphany architecture has this Private Memory sharing capability in hardware and is used to extend the OpenCL specification with the memaddr/memcopy/memsync/memsend/memrecv routines found in . Data moved between neighboring Processing Elements in the 2D grid or off-chip to the shared host memory (OpenCL Global Memory).

So the OpenCL model is used where it applies to using Epiphany as a coprocessor/accelerator. And OpenCL is extended where it is lacking obvious capabilities.

See the that uses Private Memory sharing routines.

Statistics: Posted by jar — Tue Dec 18, 2012 2:20 am

]]> 2012-12-17T21:24:16+00:00 2012-12-17T21:24:16+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=111#p111 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by Gedece — Mon Dec 17, 2012 9:24 pm

]]> 2012-12-17T21:20:45+00:00 2012-12-17T21:20:45+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=109#p109 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by Dade — Mon Dec 17, 2012 9:20 pm

]]> 2012-12-17T18:25:24+00:00 2012-12-17T18:25:24+00:00 https://parallella.org/forums/viewtopic.php?t=28&p=91#p91 <![CDATA[Re: OpenCL is the best.]]> Statistics: Posted by jar — Mon Dec 17, 2012 6:25 pm

]]>