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Subject: Re: [OMPI users] MPI_File_write_ordered does not truncate files
From: Robert Latham (robl_at_[hidden])
Date: 2009-02-18 18:10:07


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_open( CREATE | WRONLY ) to act like fopen("w").

Ah, I see now. MPI_FILE_OPEN is more like open(2) and not at all like
fopen(3).

==rob

-- 
Rob Latham
Mathematics and Computer Science Division    A215 0178 EA2D B059 8CDF
Argonne National Lab, IL USA                 B29D F333 664A 4280 315B