<s>
QMC	B-Operating_System
@Home	I-Operating_System
was	O
a	O
volunteer	B-Operating_System
computing	I-Operating_System
project	O
for	O
the	O
BOINC	B-Operating_System
client	O
aimed	O
at	O
further	O
developing	O
and	O
testing	O
Quantum	O
Monte	O
Carlo	O
(	O
QMC	O
)	O
for	O
use	O
in	O
quantum	O
chemistry	O
.	O
</s>
<s>
QMC	B-Operating_System
@Home	I-Operating_System
allows	O
volunteers	O
from	O
around	O
the	O
world	O
to	O
donate	O
idle	O
computer	O
cycles	O
to	O
help	O
calculate	O
molecular	O
geometry	O
using	O
Diffusion	O
Monte	O
Carlo	O
.	O
</s>
<s>
The	O
project	O
began	O
its	O
Beta	O
testing	O
on	O
23	O
May	O
2006	O
.	O
,	O
QMC	B-Operating_System
@Home	I-Operating_System
has	O
about	O
7,500	O
active	O
participants	O
from	O
102	O
countries	O
,	O
contributing	O
about	O
5	O
teraFLOPS	O
of	O
computation	O
power	O
.	O
</s>
