how define topology multiprocessors(computers)
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how define topology multiprocessors(computers)

 
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Elinore
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Posted: Sun Jul 17, 2005 1:22 pm    Post subject: how define topology multiprocessors(computers) Reply with quote

dear

Terminology question -:

According to parallel machine textbook, 'topology' refers to the
arrangement of 'router nodes'.

It is unclear for me 'router nodes' refer to 'router' or 'processor'.

In case one 'node' consists of one 'router' and one 'processor', it is
no problem. But in case one router is connected with multiprocessors, I
don't know how to call it.

For example,
----------------------------------------------
'Processor' 1 and 2 - connected to 'router' 1
'Processor' 3 and 4 - connected to 'router' 2
'Processor' 5 and 6 - connected to 'router' 3
'Processor' 7 and 8 - connected to 'router' 4

'Router' 1 - connected to 'router' 2
'Router' 1 - connected to 'router' 3
'Router' 2 - connected to 'router' 4
'Router' 3 - connected to 'router' 4
-----------------------------------------------

Router point of view, this is 'mesh'.
But processor point of view, this is unclear -:

If someone is clear on this, let me know

thankyou
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Nikolay
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Posted: Sun Jul 17, 2005 4:15 pm    Post subject: Re: how define topology multiprocessors(computers) Reply with quote

In the context of parallel machines "topology" refers to a network
characteristic. In some networks called "direct"
node=router+processor. See:
William Dally, "Principles and Practices of Interconnection
Networks"
http://www.amazon.com/exec/obidos/tg/detail/-/0122007514/qid=1121599000/sr=1-6/ref=sr_1_6/002-8765934-1227247?v=glance&s=books
or
Jose Duato, "Interconnection Networks"
http://www.amazon.com/exec/obidos/tg/detail/-/1558608524/ref=pd_bxgy_text_1/002-8765934-1227247?v=glance&s=books&st=*
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