On Apr 15, 2009, at 5:06 AM, Jovana Knezevic wrote:
Yes, sure, what you say makes sense. On the other hand, it seems I
will have to "traditionaly"-open the input file for n times - each one
for one process, since anyway all of my processes have to collect
their data from it (each parsing it from
>
> In general, files written by MPI_File_write (and friends) are only
> guaranteed to be readable by MPI_File_read (and friends). So if you
> have an ASCII input file, or even a binary input file, you might need
> to read it in with traditional/unix file read functions and then write
> it ou
In general, files written by MPI_File_write (and friends) are only
guaranteed to be readable by MPI_File_read (and friends). So if you
have an ASCII input file, or even a binary input file, you might need
to read it in with traditional/unix file read functions and then write
it out with MP
>
> Hi Jovana,
>
> 825307441 is 0x31313131 in base 16 (hexadecimal), which is the string
> `' in ASCII. MPI_File_read reads in binary values (not ASCII) just
> as the standard functions read(2) and fread(3) do.
>
> So, your program is fine; however, your data file (first.dat) is not.
>
>
Hi Jovana,
825307441 is 0x31313131 in base 16 (hexadecimal), which is the string
`' in ASCII. MPI_File_read reads in binary values (not ASCII) just
as the standard functions read(2) and fread(3) do.
So, your program is fine; however, your data file (first.dat) is not.
Cheers,
Shaun
Jovan
Hello everyone!
I have a problems using MPI_File_read() in C. Simple code below,
trying to read an integer prints to the standard output wrong result
(instead of 1 prints 825307441). I tried this function with 'MPI_CHAR'
datatype and it works. Probably I'm not using it properly for MPI_INT,
but I
