<s>
ASCI	B-Architecture
Blue	I-Architecture
Mountain	I-Architecture
is	O
a	O
supercomputer	B-Architecture
installed	O
at	O
the	O
Los	O
Alamos	O
National	O
Laboratory	O
in	O
Los	O
Alamos	O
,	O
New	O
Mexico	O
.	O
</s>
<s>
It	O
was	O
designed	O
to	O
run	O
simulations	O
for	O
the	O
United	O
States	O
National	O
Nuclear	O
Security	O
Administration	O
's	O
Advanced	B-General_Concept
Simulation	I-General_Concept
and	I-General_Concept
Computing	I-General_Concept
program	I-General_Concept
.	O
</s>
<s>
It	O
is	O
a	O
cluster	B-Architecture
of	O
ccNUMA	O
SGI	B-Application
Origin	I-Application
2000	I-Application
systems	O
.	O
</s>
<s>
It	O
contains	O
6,144	O
MIPS	B-Device
R10000	B-General_Concept
microprocessors	B-Architecture
in	O
48,128	O
processor	O
systems	O
connected	O
by	O
HIPPI	B-Architecture
in	O
438	O
racks	O
.	O
</s>
<s>
It	O
was	O
built	O
as	O
a	O
stage	O
of	O
the	O
Accelerated	B-General_Concept
Strategic	I-General_Concept
Computing	I-General_Concept
Initiative	I-General_Concept
(	O
ASCI	O
)	O
started	O
by	O
the	O
U.S.	O
Department	O
of	O
Energy	O
and	O
the	O
National	O
Nuclear	O
Security	O
Administration	O
to	O
build	O
a	O
simulator	O
to	O
replace	O
live	O
nuclear	O
weapons	O
testing	O
following	O
the	O
moratorium	O
on	O
testing	O
started	O
by	O
President	O
George	O
H	O
.	O
W	O
.	O
Bush	O
in	O
1992	O
and	O
extended	O
by	O
Bill	O
Clinton	O
in	O
1993	O
.	O
</s>
<s>
According	O
to	O
the	O
Los	O
Alamos	O
National	O
Laboratory	O
website	O
,	O
the	O
supercomputer	B-Architecture
set	O
a	O
world	O
record	O
in	O
May	O
2000	O
,	O
with	O
the	O
equivalent	O
of	O
17.8	O
years	O
of	O
normal	O
computer	O
processing	O
within	O
72	O
hours	O
,	O
including	O
15,000	O
engineering	O
simulations	O
requiring	O
10	O
hours	O
each	O
.	O
</s>
<s>
First	O
commissioned	O
in	O
November	O
1998	O
,	O
the	O
Blue	B-Architecture
Mountain	I-Architecture
was	O
decommissioned	O
on	O
Monday	O
,	O
November	O
8	O
,	O
2004	O
at	O
8	O
am	O
,	O
and	O
was	O
replaced	O
by	O
the	O
ASCI	O
Q	O
,	O
Lightning	O
,	O
and	O
QSC	O
supercomputers	B-Architecture
.	O
</s>
