[CMake] Choosing MPI installation

[Martin Vymazal]

Hello Yuri,

  thanks for the hint. I'll test as soon as I get back to my work  
computer. Thank you.

  Martin Vymazal


Quoting Yuri Timenkov <yuri at timenkov.ru>:

> Just remove these values from cache. If you always want to search in custom
> location, look at find_package's options to avoid searching in default
> locations
>
> On Apr 11, 2011 6:03 PM, "Martin Vymazal" <martin.vymazal at vki.ac.be> wrote:
>> Hello,
>>
>> I'm a beginner and I apologize in case I'm asking a question that
>> has already been answered. I would like to find mpi in my
>> CMakeLists.txt and enable the user to set the mpi inlude and lib
>> directories by setting say variables MY_MPI_INCLUDE_DIR and
>> MY_MPI_LIB_DIR in cmake gui.
>> Using find_package(MPI) works just fine for me, but once the
>> package is found (and the variables MPI_LIBRARY and MPI_INCLUDE_PATH
>> are set and cached), I cannot force cmake to search again for MPI in a
>> different directory).
>> Could you please give me a hint how to do this? How should I handle
>> a situation where a user has possibly multiple mpi installations?
>>
>> Thank you very much.
>>
>> Best regards,
>>
>> Martin Vymazal
>>
>>
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