While I can't foresee the future, I do think that we are going to a lot
more low latency 10 Gb/s cards that use standard 10 Gb switches and
cables such as Myricom's 10 Gb Myrinet/Ethernet card and NetEffect's 10
Gb Ethernet card.
http://www.myricom.com/Myri-10G/product_list.html
http://www.neteffect.com/ne020-features.html
Jess
Vincent Diepeveen wrote:
hi All of you,
Now that developments go fast in CPU land, by 22 july or so, intel
drops price of its quad core to $266 more or less.
Hopefully AMD's quadcore chip releases soon too for a decent price.
As intels memory subsystem is real weak, not to mention the extra
price that AMD and intel ask for dual socket/quad socket capable
chips, the optimal node is a single socket node.
4 cores is already a lot anyway for 1 highend network card.
That means in short that you can produce for quite little money, far
under $500, a node with 4 cores,
or considering the far higher taxrates in Europe, far under 500 euro
in Europe.
Basically what a node needs is a mainboard, a bit of RAM, and a cpu
with cooler. That keeps a node tiny and it's easier coolable. With
some wood then you can build a great case that holds many nodes.
Booting of course diskless over the gigabit network. Of course
interesting to know secondly is whether putting in ECC-reg ram is
interesting, considering its scandaleous high price always.
What are opinions here?
Of course now the question is how to get a reasonable low latency
highend network with a reasonable bandwidth (latency bigger priority
than bandwidth of course) and of course being capable of reading in
memory without writing. Of course the switch/routing prices + cable
prices need to be included in those price considerations.
Perhaps some bit older generation card gets sold very cheap now. What
are the options the coming years there, any manufacturer keeping up
with the dropped price of a single quad core node?
Gigabit ethernet is not an option of course, that just works for
embarrassingly parallel software, it's usually interrupting bigtime
the cpu and has an ugly one-way pingpong latency, especially when
there is several threads simultaneously shipping messages.
What are the options for the network in the future?
Vincent
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