Hi folx,
lets do another, more complete example translation from
gridrpc to saga. Todays example is the pi_client_sync.c
from the NinfG documentation. The original code (changed
formating) is attached as pi_client_sync.c.
The SAGA version is included below. I ommited the C version
this time, for brevity - please let me know if you would
like the direct comparison with C, and I'll try to come up
with that.
----------------------------------------------------------
/* This is sample program for Ninf-G, calculate PI on one server */
#include
std::string func_name = "pi/pi_trial";
std::string config_file = "client.conf";
int port = 0;
int main (int argc, char *argv[])
{
if ( argc != 3 )
{
std::cerr << "\n\tUSAGE: "
<< argv[0]
<< " <times> <hostname>\n\n";
exit (2);
}
long times = atol (argv[1]);
string host = argv[2];
try
{
/* Initialize Function handle */
saga::rpc handle (host, func_name);
/* Synchronous call */
long answer;
handle.call (0, times, &answer);
/* Compute and display pi. */
std::cout << "PI = "
<< 4.0 * ((double) answer / times))
<< std::endl;
}
catch ( const saga::exception & e )
{
std::cerr << "Catched saga error: "
<< e.what ()
<< std::endl;
exit (2);
}
return (0);
}
----------------------------------------------------------
Don't let yourself be fooled by the shortness of the
programm - that is mainly due to C++, not due to saga
(although again the session initialization/destroy is done
behind the scenes by default).
The semantics should be exactly the same as in GridRPC.
Well, thats for now, the next example should tackle a async
call I guess.
Again, I would be more than happy to see more realistic code
examples posted by you guys :-)
Cheers, Andre.
--
"So much time, so little to do..." -- Garfield
