[mpich-discuss] mpi program with argumets

[Sole Eko]

No, I don't have problems use argc/argv,

but, can somebody give me example how to make cpi.c to accept one
argument (number of rectangles) and then broadcast it.. I am realy
newbe in MPI, so any help will be great for beggining.


On 2/26/09, Rajeev Thakur <thakur at mcs.anl.gov> wrote:
> You can do it as you would in any C program. For portability, you should
> assume that command-line arguments are available only at rank 0, and have
> rank 0 broadcast them to other ranks.
>
> The Fortran example examples/f77/fpi.f shows how to do it using stdin.
>
> Rajeev
>
>
>   _____
>
> From: mpich-discuss-bounces at mcs.anl.gov
> [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Sole Eko
> Sent: Thursday, February 26, 2009 7:23 AM
> To: mpich-discuss at mcs.anl.gov
> Subject: [mpich-discuss] mpi program with argumets
>
>
> Hi,
>
> I would like to make example program cpi.c to be able to run wih one or more
> arguments, for example:
>
> mpiexec cpi.exe 1000
>
> where 1000 is, say, number of rectangles.
>
> I saw that MPI_Init(&argc,&arv) uses argumets passed to main method, but not
> more than that..
>
> how can I acheve passing number of rectangles to cpi.exe?
>
> I attached original version of cpi.c
>
> Sole
>
>
>
>