<s>
Nanoscale	O
Molecular	O
Dynamics	O
(	O
NAMD	B-Application
,	O
formerly	O
Not	O
Another	O
Molecular	O
Dynamics	O
Program	O
)	O
is	O
computer	O
software	O
for	O
molecular	O
dynamics	O
simulation	O
,	O
written	O
using	O
the	O
Charm++	B-Language
parallel	O
programming	O
model	O
.	O
</s>
<s>
NAMD	B-Application
has	O
since	O
matured	O
,	O
adding	O
many	O
features	O
and	O
scaling	O
beyond	O
500,000	O
processor	O
cores	O
.	O
</s>
<s>
NAMD	B-Application
has	O
an	O
interface	O
to	O
quantum	O
chemistry	O
packages	O
ORCA	B-Application
and	O
MOPAC	B-Application
,	O
as	O
well	O
as	O
a	O
scripted	O
interface	O
to	O
many	O
other	O
quantum	O
packages	O
.	O
</s>
<s>
Together	O
with	O
Visual	B-Application
Molecular	I-Application
Dynamics	I-Application
(	O
VMD	O
)	O
and	O
QwikMD	O
,	O
NAMD	B-Application
's	O
interface	O
provides	O
access	O
to	O
hybrid	O
QM/MM	B-Algorithm
simulations	O
in	O
an	O
integrated	O
,	O
comprehensive	O
,	O
customizable	O
,	O
and	O
easy-to-use	O
suite	O
.	O
</s>
<s>
NAMD	B-Application
is	O
available	O
as	O
freeware	B-License
for	O
non-commercial	O
use	O
by	O
individuals	O
,	O
academic	O
institutions	O
,	O
and	O
corporations	O
for	O
in-house	O
business	O
uses	O
.	O
</s>
