can you maybe detail more precisely what scenario you are particularly worried about? I would think that the return code of the operation should be reliable on whether opening the file successful or (i.e. MPI_SUCCESS vs. anything else).
Edgar On 5/17/2013 4:00 AM, Peter van Hoof wrote: > Dear users, > > I have been banging my head against the wall for some time to find a > reliable and portable way to determine if a call to MPI::File::Open() > was successful or not. > > Let me give some background information first. We develop an open-source > astrophysical modeling code called Cloudy. This is used by many > scientists on a variety of platforms. We obviously have no control over > the MPI version that is installed on that platform, it may not even be > open-MPI. So what we need is a method that is supported by all MPI distros. > > Our code is written in C++, so we use the C++ version of the MPI and > MPI-IO libraries. > > Any help would be greatly appreciated. > > > Cheers, > > Peter. >
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