[mpich-discuss] mpich/master: Something got wrong since may 24

[Eric Chamberland]

Hi Rob,

I am very sorry for wrongly suspecting MPI I/O... :/

Everything is effectively fine with MPI I/O itself! :)

Regards,

Eric


On 2019-06-11 1:59 p.m., Latham, Robert J. wrote:
> On Wed, 2019-06-05 at 09:18 -0400, Eric Chamberland via discuss wrote:
>> Hi,
>>
>> I am in the early debugging stages of something that broke on may 24
>> on
>> our test database with 17 tests against mpich/master branch.
>>
>> It seems related to MPI I/O, since we have observed the bugs just
>> after
>> MPI I/O reads.
> Thanks for the report and the reproducer.
>
> Since you mentioned MPI-IO, I suspect most of the MPICH team will say
> "Oh, that must be RobL's problem", but I'm (at least partially) off the
> hook!  Your test case doesn't have any call to MPI_File routines.
>
> I created https://github.com/pmodels/mpich/issues/3846 to track this
> defect.
>
> ==rob
>
>> Everything is fine with other MPI libs, even older mpich.  This is
>> only
>> a mpich/master problem.
>>
>> My early query: am I alone to have observed this?
>>
>> Thanks,
>>
>> Eric
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