[mpich-discuss] How to read data using user-defined functions in Parallel-IO?

[Rajeev Thakur]

It is possible in MPI using "user-defined data representations" but it is
not yet supported in ROMIO, and hence in all the MPI implementations that
use ROMIO.

Rajeev
 

> -----Original Message-----
> From: owner-mpich-discuss at mcs.anl.gov 
> [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Manoj Vaghela
> Sent: Friday, May 30, 2008 9:56 AM
> To: mpich-discuss at mcs.anl.gov
> Subject: [mpich-discuss] How to read data using user-defined 
> functions in Parallel-IO?
> 
> Hi,
> 
>       Let say, in serial application, user-defined functions 
> are used to read a particular file format and extract data 
> from it. Now for same thing, I want to use these functions to 
> read data in parallel using MPI Parallel IO functions. Is it 
> possible without going into hardcore other programming stuff 
> only using MPI and user-defined functions?
> 
> PS: Input data file(which is to be read)  is in binary and 
> user-defined/library functions are required to extract 
> contents from that file.
> 
> --
> Manoj Vaghela
> 
> 
>