<s>
The	O
Oak	B-Device
Ridge	I-Device
Leadership	I-Device
Computing	I-Device
Facility	I-Device
(	O
OLCF	B-Device
)	O
,	O
formerly	O
the	O
National	B-Device
Leadership	I-Device
Computing	I-Device
Facility	I-Device
,	O
is	O
a	O
designated	O
user	O
facility	O
operated	O
by	O
Oak	O
Ridge	O
National	O
Laboratory	O
and	O
the	O
Department	O
of	O
Energy	O
.	O
</s>
<s>
It	O
contains	O
several	O
supercomputers	B-Architecture
,	O
the	O
largest	O
of	O
which	O
is	O
an	O
HPE	O
OLCF-5	B-Device
named	O
Frontier	B-Device
,	O
which	O
was	O
ranked	O
1st	O
on	O
the	O
TOP500	B-Operating_System
list	O
of	O
world	O
's	O
fastest	B-Operating_System
supercomputers	I-Operating_System
as	O
of	O
June	O
2022	O
.	O
</s>
<s>
Under	O
its	O
former	O
name	O
of	O
the	O
National	B-Device
Leadership	I-Device
Computing	I-Device
Facility	I-Device
,	O
the	O
OLCF	B-Device
was	O
founded	O
in	O
1992	O
at	O
Oak	O
Ridge	O
National	O
Laboratory	O
to	O
advance	O
the	O
state	O
of	O
the	O
art	O
in	O
high-performance	B-Architecture
computing	I-Architecture
(	O
HPC	O
)	O
by	O
bringing	O
a	O
new	O
generation	O
of	O
parallel	O
computers	O
out	O
of	O
the	O
laboratory	O
and	O
into	O
the	O
hands	O
of	O
the	O
scientists	O
who	O
could	O
most	O
use	O
them	O
.	O
</s>
<s>
It	O
was	O
called	O
the	O
Center	O
for	O
Computational	O
Sciences	O
,	O
or	O
CCS	O
,	O
and	O
had	O
an	O
Intel	B-Device
Paragon	I-Device
computer	O
.	O
</s>
<s>
Over	O
time	O
,	O
it	O
expanded	O
to	O
contain	O
many	O
supercomputers	B-Architecture
including	O
the	O
Intel	B-Device
Paragon	I-Device
,	O
an	O
IBM	O
system	O
based	O
on	O
the	O
POWER3	B-General_Concept
,	O
an	O
IBM	O
system	O
based	O
on	O
the	O
POWER4	B-Device
,	O
SGI	B-Architecture
Altix	I-Architecture
,	O
and	O
more	O
recently	O
,	O
the	O
Cray	B-Device
X1E	I-Device
,	O
Cray	B-Device
XD1	I-Device
,	O
Cray	B-Device
XT3	I-Device
,	O
Cray	B-Device
XT4	I-Device
,	O
Cray	B-Device
XT5	I-Device
,	O
and	O
Titan	O
.	O
</s>
<s>
The	O
OLCF	B-Device
is	O
a	O
collaboration	O
of	O
the	O
DOE-SC	O
and	O
a	O
world-class	O
team	O
from	O
national	O
laboratories	O
,	O
research	O
institutions	O
,	O
computing	O
centers	O
,	O
universities	O
,	O
and	O
vendors	O
.	O
</s>
<s>
To	O
accomplish	O
this	O
,	O
the	O
OLCF	B-Device
has	O
developed	O
and	O
implemented	O
a	O
three-pronged	O
strategy	O
for	O
building	O
and	O
engaging	O
the	O
research	O
communities	O
to	O
define	O
critical	O
computational	O
needs	O
,	O
work	O
with	O
the	O
manufacturers	O
of	O
HPC	O
resources	O
to	O
express	O
and	O
meet	O
those	O
needs	O
,	O
and	O
develop	O
the	O
tools	O
and	O
algorithms	O
to	O
best	O
take	O
advantage	O
of	O
the	O
HPC	O
resources	O
.	O
</s>
<s>
OLCF	B-Device
's	O
fastest	B-Operating_System
computer	I-Operating_System
,	O
Frontier	B-Device
,	O
is	O
a	O
1.102	O
ExaFLOPs	O
HPE	O
OLCF-5	B-Device
supercomputer	B-Architecture
with	O
a	O
CPU/GPU	O
hybrid	O
architecture	O
.	O
</s>
<s>
The	O
combination	O
of	O
CPUs	O
and	O
GPUs	O
will	O
allow	O
Titan	O
and	O
future	O
systems	O
to	O
overcome	O
power	O
and	O
space	O
limitations	O
inherent	O
in	O
previous	O
generations	O
of	O
high-performance	B-Architecture
computers	I-Architecture
.	O
</s>
<s>
The	O
facility	O
also	O
contains	O
a	O
petabyte	O
High	B-Application
Performance	I-Application
Storage	I-Application
System	I-Application
(	O
HPSS	O
)	O
that	O
currently	O
stores	O
upwards	O
of	O
29	O
petabytes	O
of	O
data	O
.	O
</s>
<s>
OLCF	B-Device
facilities	O
are	O
accessible	O
through	O
the	O
Energy	O
Sciences	O
Network	O
or	O
ESnet	O
.	O
</s>
<s>
Resources	O
of	O
the	O
Oak	B-Device
Ridge	I-Device
Leadership	I-Device
Computing	I-Device
Facility	I-Device
are	O
dedicated	O
to	O
a	O
limited	O
number	O
of	O
high-impact	O
,	O
grand	O
challenge	O
scale	O
projects	O
.	O
</s>
<s>
95%	O
of	O
the	O
OLCF	B-Device
resources	O
are	O
dedicated	O
to	O
these	O
projects	O
.	O
</s>
