<s>
Uniform	B-Operating_System
memory	I-Operating_System
access	I-Operating_System
(	O
UMA	O
)	O
is	O
a	O
shared	B-Operating_System
memory	I-Operating_System
architecture	I-Operating_System
used	O
in	O
parallel	B-Operating_System
computers	I-Operating_System
.	O
</s>
<s>
Uniform	B-Operating_System
memory	I-Operating_System
access	I-Operating_System
computer	O
architectures	O
are	O
often	O
contrasted	O
with	O
non-uniform	B-Operating_System
memory	I-Operating_System
access	I-Operating_System
(	O
NUMA	O
)	O
architectures	O
.	O
</s>
<s>
The	O
UMA	O
model	O
is	O
suitable	O
for	O
general	O
purpose	O
and	O
time	B-General_Concept
sharing	I-General_Concept
applications	O
by	O
multiple	O
users	O
.	O
</s>
<s>
It	O
can	O
be	O
used	O
to	O
speed	O
up	O
the	O
execution	O
of	O
a	O
single	O
large	O
program	O
in	O
time-critical	B-General_Concept
applications	O
.	O
</s>
<s>
UMA	O
using	O
bus-based	O
symmetric	B-Operating_System
multiprocessing	I-Operating_System
(	O
SMP	O
)	O
architectures	O
;	O
</s>
<s>
UMA	O
using	O
multistage	B-Operating_System
interconnection	I-Operating_System
networks	I-Operating_System
.	O
</s>
<s>
In	O
April	O
2013	O
,	O
the	O
term	O
hUMA	O
(	O
heterogeneous	O
uniform	B-Operating_System
memory	I-Operating_System
access	I-Operating_System
)	O
began	O
to	O
appear	O
in	O
AMD	O
promotional	O
material	O
to	O
refer	O
to	O
CPU	B-Device
and	O
GPU	B-Architecture
sharing	O
the	O
same	O
system	O
memory	O
via	O
cache	B-General_Concept
coherent	I-General_Concept
views	O
.	O
</s>
