On Wed, Feb 18, 2009 at 02:44:09PM -0800, Brian Austin wrote:
> I don't know whether this is the correct behavior, but it is the
> correct origin of my confusion.
> I suspected this would be attributed to the standard, but it is
> contrary to what I'm used to with C's fopen:
> I expected MPI_File_
>>> MPI_File_open( MPI_COMM_WORLD, "foo.txt",
>>> MPI_MODE_CREATE | MPI_MODE_WRONLY,
>>> MPI_INFO_NULL, &fh );
>
>
> Since the file was opened with MPI_MODE_CREATE, shouldn't it have been
> truncated so the prior contents were removed? I think that's the root
> of the confu
On Wed, Feb 18, 2009 at 02:24:03PM -0700, Ralph Castain wrote:
> Hi Rob
>
> Guess I'll display my own ignorance here:
>
>>> MPI_File_open( MPI_COMM_WORLD, "foo.txt",
>>>MPI_MODE_CREATE | MPI_MODE_WRONLY,
>>>MPI_INFO_NULL, &fh );
>
>
> Since the file was opened with MPI_MODE
Hi Rob
Guess I'll display my own ignorance here:
MPI_File_open( MPI_COMM_WORLD, "foo.txt",
MPI_MODE_CREATE | MPI_MODE_WRONLY,
MPI_INFO_NULL, &fh );
Since the file was opened with MPI_MODE_CREATE, shouldn't it have been
truncated so the prior contents were rem
On Wed, Feb 18, 2009 at 11:10:51AM -0800, Brian Austin wrote:
> >> Can you confirm - are you -really- using 1.1.2???
> >>
> >> You might consider updating to something more recent, like 1.3.0 or
> >>at least 1.2.8. It would be interesting to know if you see the same
> >> problem.
>
> > Also, if yo
>> Can you confirm - are you -really- using 1.1.2???
>>
>> You might consider updating to something more recent, like 1.3.0 or
>>at least 1.2.8. It would be interesting to know if you see the same
>> problem.
> Also, if you could include a short program that reproduces the
> problem, that would be
On Feb 18, 2009, at 11:17 AM, Ralph Castain wrote:
Can you confirm - are you -really- using 1.1.2???
You might consider updating to something more recent, like 1.3.0 or
at least 1.2.8. It would be interesting to know if you see the same
problem.
Also, if you could include a short program
Can you confirm - are you -really- using 1.1.2???
You might consider updating to something more recent, like 1.3.0 or at
least 1.2.8. It would be interesting to know if you see the same
problem.
On Feb 15, 2009, at 3:27 PM, Brian Austin wrote:
Hi,
When I use MPI_File_write_ordered to ov
Hi,
When I use MPI_File_write_ordered to overwrite an existing file, the new
file is not truncated to the appropriate size.
For example, if I first create a new file and write "aa" from two nodes, the
file contains "".
Then I close the file, and compute for a while.
Later, I reopen the file wi
