[petsc-users] Building PETSc with cmake

[John Fettig]

On Tue, Sep 13, 2011 at 9:59 AM, Matthew Knepley <knepley at gmail.com> wrote:
> On Tue, Sep 13, 2011 at 8:55 AM, John Fettig <john.fettig at gmail.com> wrote:
>>
>> What are the requirements for building PETSc with cmake?  I have cmake
>> version 2.8.1 installed, and configure finds it, but it does nothing
>> with it.  Is it because my python version is too old?  This is on
>> CentOS 5, I get these messages about cmake in the configure.log (with
>> 3.2-p0):
>>
>> Checking for program /usr/local/bin/cmake...found
>>            Defined make macro "CMAKE" to "/usr/local/bin/cmake"
>>
>> ...
>>
>>      Skipping cmakegen due to old python version: (2, 4, 3, 'final', 0)
>>      Skipping cmakeboot due to old python version: (2, 4, 3, 'final', 0)
>>
>> At the end of the configure, I'm not offered a way to build with
>> cmake.  I presume that cmake is the only way to do a parallel build?
>
> Yes, and it is because your Python version is too old. I believe it needs
> 2.6. I would
> install 2.7 if you are upgrading.

Is there any way to tell configure which python to use?  I have python
2.6 installed, it's just not what runs when you type `python`.  I
don't think I can change the default python in CentOS 5 without
breaking a lot of other things.

John