[mpich-discuss] Fwd: gcov question with MPICH2

[Barry Smith]

   When I run the same tests on a Linux system I get a very small  
number of these messages and it never slows down or hangs.
I guess the problem is with gcov or file locking on the Mac.

    Barry


Begin forwarded message:

> From: Barry Smith <bsmith at mcs.anl.gov>
> Date: September 21, 2009 3:17:06 PM CDT
> To: mpich-discuss at mcs.anl.gov
> Subject: Fwd: gcov question with MPICH2
>
>
>
>>>
>>>
>>>
>>>
>>> This isn't a bug report on MPICH2 but a question.
>>>
>>> When I compile and build PETSc with gcov (and MPICH2), when I run  
>>> our PETSc test suite I sometimes get messages like
>>>
>>> profiling:/Users/barrysmith/Src/petsc-dev/externalpackages/ 
>>> mpich2-1.0.8/src/util/mem/argstr.gcda:Invocation mismatch - some  
>>> data files may have been removed
>>>
>>> but most of the tests do not give these messages and sometimes it  
>>> really slows down or hangs (but not always).
>>>
>>> This is on a Mac running 10.5
>>>
>>> Have you ever seen these when running MPICH tests with gcov?
>>>
>>> Thanks
>>>
>>> Barry
>>>
>>> Note: the "complaints" are always for MPICH source code, never  
>>> PETSc source??
>>>
>>
>