Hi All:
My manager wants me to build the world fastest PC, or something close to it. He did say money is not an object (for now

Can anyone help me out putting the specifications, like what CPU, Mem, Motherboard, Case, Fan (cooling)....etc
Is there any company (vendor) already doing this?
Many thanks
Andy
Windss
purcase 20,000 Mac G5 surpluses then LAN them together to create a cluster. you will prob. have the most powerful in the world
if 1,566 create 25 teraflops
and blue gene/L has 280.6
that means that you would need...
25/1,566=0.016 tflops (rounded to 2 dp)
means that
280.6/.016=17,537.5 Mac G5's needed
now since the 1,566 uses Xserve that have a 2 Ghz core
we will have to adapt a bit
if we can assume that the Xserve are single core then we can get pro mac's with dual core then we shouldnt need as many units
ofcourse the Dual core doesnt supstitute a real second core as a 2 Ghz is actually running 2 cores at 1Ghz, but it does improve effecentcy. now we wont change the amount since the 17,537.5 is equivelent, and we want the best and fastest
now since each PC costs about 2000USD that means that the total is
cant buy 3/4 a pc;
17,538*2000= 35,076,000
so thats 35 million, even if we assume that we save about 60 on each unit due to bulk buying that means it costs 1940, so
17538*1940=34023720
which is 34 million odd. now the brilliant thing is that shipping is included! though we still havnt included the miles of cabling or switches and hubs that are going to be required
for the sake of simplicity we are assuming that you are going to use a few of these to network
Cisco SFS InfiniBand Server Switch 7012P - switch - 144 ports - each costs $68675.20USD
since i cant find any with more ports without having to ask for the price this one should do fine
17538/144=122 rounded up to nearest whole number
that means that as each costs 68675.20 its gonna cost
68675.2*122=8,378,374.4
now i know that this is abit steep but your in luck! they have a cash price! only 67301.7! the shop is the LA computer store
http://www.lacc.com/product.asp?pf_id=SFS7012P
if we use this new amount
67301.7*122=8,210,807.4!
now also we need cabling,
if 305 metre costs 49 quid, about 70 80 dollars. we can assume that one 305 reel can serve a single 144, though we should get extra just incase
so 5 extra i think
call it $70 since we can almost always find a bargain.
70*127= 8,890
this allows us to network the PCs up,
now i havnt included power cost though if you want i can work out the approxamate ussage...what the hell, i'm bored
a G5 uses about 55watts peak if we use
http://www.anandtech.com/mac/showdoc.aspx?i=2685&p=7
as a guide. and the max consuption is 97 for the whole system. we should assume a bit of overhead, since they are never absolutely accurate. so if we place a 10% overhead equals
97/100*110=106.7Watts
we will round to 110 for simplicity and assume that you have cheap electricity i'll use this as a guide
http://michaelbluejay.com/electricity/cost.html
in astin
now 17538 Macs using 110 watts each give
17538*110=1,929,180 watts per hour
since its calculated in kilowatts not watts means that
1929180/10=192918kWh
remember, first 500kHw costs 5.8 cents per hour so thats
.058*9=0.522c
and dont forget
192918-500=192418kWh
so 192418*.1=19241.8c
19241.8/100=192.41
which gives us
$192.41 per hour
or take away the 500 watt initial of 5.8c and you get
$192.918 per hour
of course this amount is dependent on the months as the cost fluctates
and you will prob. need a warehouse alteast to store it all. now if we take the dimension of 1 G5 from
http://www.apple.com/macpro/specs.html
height:51.1cm
width:20.6cm
depth:47.5cm
we can assume the total cubic volume is
work out base size
20.6*47.5=978.5cm2
and the cubic size
51.1*20.6*47.5= 500,001.35 cm3
or in m3
500,001.35/100=5000m3...though i'm sure this sounds wrong
Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed.
If a square has one side of 4 inches, the volume would be 4 inches times 4 inches times 4 inches, or 64 cubic inches. (Cubic inches can also be written in3.)
rectangular prism = a b c
anywho from this we know it is (apparently) 5000cubic metres. and since we have 17,538 we need a storeroom of about
17538*5000=87,690,000 cubic metres
this of course does not include any space for the switches or any room for ventilation.
in additum we also need a number of powerpoint extension cords. though since they can be found in most stores, i think its safe to say that you can buy and find them urself
this leads us with a total of:
Macs:_______________34,023,720
switch:_______________8,378,374.4 OR
cash switch:___________8,210,807.4
Cable:___________________8,890
total:_______________42,410,984.4
total:cash___________42,243,417.4
so there you go, $42,243,417.4
and $192.918 per hour of uptime, though it might take a while to turn on
yes...i was very bored
This is what they call "COMPUTING" !!!!!!!