<s>
The	O
Supervisor	B-Operating_System
Monitoring	I-Operating_System
Scheduler	I-Operating_System
(	O
or	O
SMS	O
)	O
is	O
a	O
job	B-General_Concept
scheduler	I-General_Concept
infrastructure	O
for	O
Linux-based	O
systems	O
,	O
formerly	O
licensed	O
and	O
maintained	O
by	O
the	O
European	O
Centre	O
for	O
Medium-Range	O
Weather	O
Forecasts	O
(	O
ECMWF	O
)	O
.	O
</s>
<s>
It	O
is	O
used	O
to	O
submit	O
batch	O
jobs	O
to	O
different	O
hosts	O
through	O
,	O
for	O
example	O
,	O
ssh	B-Protocol
.	O
</s>
<s>
Server-host	O
interaction	O
is	O
assured	O
through	O
RPC	B-Operating_System
calls	O
.	O
</s>
<s>
It	O
uses	O
a	O
CLI	B-Application
prompt	O
(	O
CDP	O
)	O
to	O
define	O
job	O
hierarchies	O
from	O
definition	O
files	O
,	O
and	O
when	O
a	O
job	O
suite	O
is	O
defined	O
,	O
it	O
can	O
be	O
controlled	O
and	O
monitored	O
through	O
an	O
X-motif	B-Application
GUI	B-Application
interface	O
called	O
Xcdp	O
.	O
</s>
