<s>
Sh	O
was	O
an	O
early	O
metaprogramming	B-Application
language	O
for	O
programmable	B-Architecture
GPUs	I-Architecture
.	O
</s>
<s>
Programs	O
written	O
in	O
Sh	O
could	O
either	O
run	O
on	O
CPUs	B-Device
or	O
GPUs	O
,	O
obviating	O
the	O
need	O
to	O
write	O
programs	O
in	O
a	O
mix	O
of	O
two	O
programming	O
languages	O
as	O
was	O
the	O
case	O
with	O
earlier	O
GPU	O
programming	O
systems	O
such	O
as	O
Cg	B-Language
or	O
HLSL	B-Language
.	O
</s>
