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Subject: Re: [OMPI users] opening a file with MPI-IO
From: Edgar Gabriel (gabriel_at_[hidden])
Date: 2013-05-17 08:58:38


wow, lets try again in english :-)

can you maybe detail more precisely what scenario you are particularly
worried about? I would think that the return code of the operation
is reliable on whether opening the file was successful or not (i.e.
MPI_SUCCESS vs. anything else).

Edgar

On 5/17/2013 7:55 AM, Edgar Gabriel wrote:
> 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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