The FNN (Flat Neighborhood Network) paradox

[Miroslaw Gawenda]

Hi

I just plan to make beowulf with 100M nic with network architecture
described on the http://aggregate.org/FNN.
But I am in trouble because I found so this is without sense for me :(
I was count the prices for architectures prepared from 8/16/24/and
greater switches.
I was count the total network cost ie : cost of switches, nics,
patchcoords and patchpanels.
My results say : ONLY 1 switch giving good price !


This is my network prices:

1.Beowulf from 8 port switches
a) 8-PC with 1 nic 1 patchpanel 1 switch.............430$
b) 12-pc with 2 nic 2 patchpanels 3 switches ........915$
c) 14-pc with 3 nic 3 patchpanels 5 switches ........1433$

2.Beowulf from 16 port switches
a) 16-pc with 1 nic 1 patchpanel 1 switch ...........893$
b) 24-pc with 2 nic 2 patchpanel 3 switch............2114$
c) 32-pc with 3 nic 4 patchpanel 6 switch............3884$

3.Beowulf from 24 port switches
a) 24-pc with 1 nic 1 patchpanel 1 switch............1348$
b) 36-pc with 2 nic 3 patchpanel 3 switch............3287$
c) 40-pc with 3 nic 4 patchpanel 4 switch............4347$

4.Beowulf from the 40 port -very expensive HP ProCurve Switch
a) 40-pc with 1 nic 2 patchpanel ....................3036$
b) 80-pc with 1 nic 4 patchpanel and 5 expansions for the HP
.........5853$

so - I see that the topology is without financial sense !! - Where I
made the mistake ? !
and of course The HP ProCurve Switch is excelent ! does anybody use this
?

and : Great sorry for my English :))

Miroslaw Gawenda.