[MPICH] Hi..Let me ask you about FILE I/O using MPICH2

[Rajeev Thakur]

The file info.txt should be in the same directory as the executable. It
should also be available on all nodes where the program is being run (for
example, via a shared file system such as NFS).

Rajeev 

> -----Original Message-----
> From: owner-mpich-discuss at mcs.anl.gov 
> [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of AO AA±O
> Sent: Saturday, September 24, 2005 11:51 PM
> To: mpich-discuss at mcs.anl.gov
> Subject: [MPICH] Hi..Let me ask you about FILE I/O using MPICH2
> 
> Hi..I've got a question about FILE I/O using MPICH2
> 
> this is the code i worte.
> 
> MPI_File_open(MPI_COMM_WORLD"info.txt",MPI_MODE_RDWR,MPI_INFO_
> NULL,&file2);
> 
> MPI_File_read_shared(file2,buf2,bufsize,MPI_CHAR,&status); 
> 	
> the problem is I can't read info.txt although it's in the 
> same directory 
> with mpiexec.
> 
> but if I use MPI_File_wriete_shared, I could find "info.txt" 
> and read it.
> 
> another strange thing is that if I change the name "info.txt" into 
> "ano_info.txt", there must be
> 
> error about not finding "info.txt"
> 
> it still can find "info.txt"...How could it be possible? 
> maybe it's caused 
> by channel or file pointer.
> 
> hm..anyway, I want to use network mapped drive with FILE I/O
> 
> any suggestion for that? plz, give me some
> 
> 
> -Dean
> 
> 
>