[Beowulf] difference between accelerators and co-processors
diep at xs4all.nl
Thu Mar 14 04:08:39 PDT 2013
I would like to point to 1 really important practical difference.
co-processors can have magnificent latency from the co-processor to
the cpu. In the nano-seconds.
Accelerators i'd argue typically go via pci-e or similar, so have
horrible latency, in the microseconds or slower.
Accelerators are just there for massive bandwidth based number
crunching in general - take Xeon Phi or K20 from Nvidia or AMD's
On Mar 10, 2013, at 5:36 PM, amjad ali wrote:
> Hello All,
> Is there any line/point to make distinction between accelerators
> and co-processors (that are used in conjunction with the primary
> CPU to boost up the performance)? or these terms can be used
> Specifically, the word "accelerator" is used commonly with GPU. On
> the other hand the word "co-processors" is used commonly with Xeon
> Thank you.
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