<s>
GridRPC	B-Operating_System
in	O
distributed	B-Architecture
computing	I-Architecture
,	O
is	O
Remote	B-Operating_System
Procedure	I-Operating_System
Call	I-Operating_System
over	O
a	O
grid	B-Architecture
.	O
</s>
<s>
This	O
paradigm	O
has	O
been	O
proposed	O
by	O
the	O
GridRPC	B-Operating_System
working	O
group	O
of	O
the	O
Open	O
Grid	B-Architecture
Forum	O
(	O
OGF	O
)	O
,	O
and	O
an	O
API	B-General_Concept
has	O
been	O
defined	O
in	O
order	O
for	O
clients	O
to	O
access	O
remote	O
servers	O
as	O
simply	O
as	O
a	O
function	O
call	O
.	O
</s>
<s>
It	O
is	O
used	O
among	O
numerous	O
Grid	B-Architecture
middleware	B-General_Concept
for	O
its	O
simplicity	O
of	O
implementation	O
,	O
and	O
has	O
been	O
standardized	O
by	O
the	O
OGF	O
in	O
2007	O
.	O
</s>
<s>
For	O
interoperability	O
reasons	O
between	O
the	O
different	O
existing	O
middleware	B-General_Concept
,	O
the	O
API	B-General_Concept
has	O
been	O
followed	O
by	O
a	O
document	O
describing	O
good	O
use	O
and	O
behavior	O
of	O
the	O
different	O
GridRPC	B-Operating_System
API	B-General_Concept
implementations	O
.	O
</s>
<s>
Works	O
have	O
then	O
been	O
conducted	O
on	O
the	O
GridRPC	B-Operating_System
Data	O
Management	O
,	O
which	O
has	O
been	O
standardized	O
in	O
2011	O
.	O
</s>
<s>
The	O
scope	O
of	O
this	O
standard	O
is	O
to	O
offer	O
recommendations	O
for	O
the	O
implementation	O
of	O
middleware	B-General_Concept
.	O
</s>
<s>
Definition	O
of	O
a	O
specific	O
data	O
structure	O
for	O
arguments	O
in	O
GridRPC	B-Operating_System
middleware	B-General_Concept
.	O
</s>
<s>
Definition	O
of	O
API	B-General_Concept
mechanisms	O
to	O
enable	O
workflow	B-Operating_System
management	O
.	O
</s>
<s>
Demonstrate	O
implementability	O
of	O
all	O
parts	O
of	O
the	O
API	B-General_Concept
.	O
</s>
<s>
Demonstrate	O
and	O
evaluate	O
at	O
least	O
two	O
implementations	O
of	O
the	O
complete	O
GridRPC	B-Operating_System
middleware	B-General_Concept
recommendation	O
.	O
</s>
<s>
client-server	O
or	O
Remote	B-Operating_System
Procedure	I-Operating_System
Call	I-Operating_System
(	O
RPC	O
)	O
paradigm	O
.	O
</s>
<s>
which	O
is	O
also	O
called	O
GridRPC	B-Operating_System
.	O
</s>
<s>
server	O
available	O
on	O
the	O
Grid	B-Architecture
.	O
</s>
<s>
small	O
computation	O
requests	O
can	O
now	O
be	O
sent	O
to	O
servers	O
available	O
on	O
the	O
Grid	B-Architecture
.	O
</s>
<s>
resource	O
platforms	O
,	O
it	O
is	O
important	O
to	O
ensure	O
scalability	O
in	O
the	O
middleware	B-General_Concept
layers	O
as	O
well	O
.	O
</s>
<s>
The	O
main	O
middleware	B-General_Concept
implementing	O
the	O
API	B-General_Concept
are	O
DIET	O
,	O
NetSolve/GridSolve	O
,	O
Ninf	O
,	O
but	O
some	O
other	O
environments	O
use	O
it	O
like	O
the	O
SAGA	B-Operating_System
interface	O
from	O
the	O
OGF	O
,	O
and	O
without	O
the	O
standardized	O
API	B-General_Concept
calls	O
,	O
like	O
OmmiRPC	O
,	O
XtremWeb	O
.	O
</s>
<s>
paradigm	O
,	O
and	O
is	O
the	O
core	O
of	O
the	O
Cloud	B-Architecture
computing	I-Architecture
.	O
</s>
<s>
executed	O
with	O
any	O
GridRPC	B-Operating_System
compliant	O
middleware	B-General_Concept
.	O
</s>
<s>
middleware	B-General_Concept
has	O
also	O
been	O
written	O
.	O
</s>
<s>
GridRPC	B-Operating_System
middleware	B-General_Concept
.	O
</s>
<s>
Hence	O
,	O
a	O
side	O
effect	O
is	O
that	O
a	O
fully	O
GridRPC-compliant	O
code	O
can	O
be	O
written	O
and	O
compiled	O
with	O
any	O
GridRPC	B-Operating_System
middleware	B-General_Concept
implementing	O
the	O
GridRPC	B-Operating_System
Data	O
Management	O
API	B-General_Concept
.	O
</s>
<s>
The	O
GridRPC	B-Operating_System
model	O
is	O
pictured	O
in	O
the	O
following	O
figure	O
.	O
</s>
<s>
the	O
API	B-General_Concept
.	O
</s>
<s>
identify	O
a	O
specific	O
non-blocking	O
GridRPC	B-Operating_System
call	O
.	O
</s>
<s>
codes	O
involved	O
in	O
the	O
GridRPC	B-Operating_System
API	B-General_Concept
.	O
</s>
<s>
similar	O
to	O
the	O
MPI	B-Application
initialize	O
and	O
finalize	O
calls	O
.	O
</s>
<s>
any	O
GridRPC	B-Operating_System
call	O
is	O
performed	O
in	O
between	O
these	O
two	O
calls	O
.	O
</s>
<s>
configuration	O
files	O
,	O
make	O
the	O
GridRPC	B-Operating_System
environment	O
ready	O
and	O
finish	O
it	O
.	O
</s>
<s>
GridRPC	B-Operating_System
Model	O
and	O
API	B-General_Concept
for	O
End-User	O
Applications	O
.	O
</s>
<s>
Interoperability	O
Testing	O
for	O
The	O
GridRPC	B-Operating_System
API	B-General_Concept
Specification	O
.	O
</s>
<s>
Data	O
Management	O
API	B-General_Concept
within	O
the	O
GridRPC	B-Operating_System
.	O
</s>
