[mpich-discuss] mpich2 / openmpi conflicts on osx 10.5?

[Thomas Blom]

True for execution paths, but I wanted to ensure I wasn't picking up the
wrong header or libs along the way somehow during builds of stuff.  This is
easy enough in simple makefiles, but in xcode using a native project (which
I'm new to) I'm never sure where it is looking first etc and so resort to
tricks like hiding files.  Apple's version of gcc and ld also behave
differently than 'standard' versions of these tools, so hiding or removing
all headers/libs/binaries for an sdk seems the safest way to me to ensure
they are not getting involved behind the scenes somehow.  Again, I'm
somewhat new to development on osx.

-thomas

On Thu, Dec 18, 2008 at 7:42 AM, Jeff Squyres <jsquyres at cisco.com> wrote:

> FWIW, you shouldn't even need to "hide" the default MPI that ships with
> Leopard by putting it in another directory.  If you just set your PATH to
> point to /usr/local/bin before it points to /usr/bin, you should be fine (I
> do this all the time on my MacBook Pro laptop).
>
>
>
>
> On Dec 17, 2008, at 9:22 PM, Thomas Blom wrote:
>
>  Thanks.  Perhaps that would have worked.  What I ended up doing was
>> "hiding" the headers, libs, and exes for the openmpi that came installed on
>> the mac.  Then I did the configure, make, and make install again, and it
>> worked.
>>
>> -thomas
>>
>> On Wed, Dec 17, 2008 at 11:12 PM, Rajeev Thakur <thakur at mcs.anl.gov>
>> wrote:
>> Just try logging out and log back in again.
>>
>> Rajeev
>>
>> From: mpich-discuss-bounces at mcs.anl.gov [mailto:
>> mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Thomas Blom
>> Sent: Wednesday, December 17, 2008 10:06 PM
>> To: mpich-discuss at mcs.anl.gov
>> Subject: [mpich-discuss] mpich2 / openmpi conflicts on osx 10.5?
>>
>> Hello,
>>
>> I've successfully used mpich2 on windows and on a couple of other osx
>> machines, but having just built mpich2 from source on a new mac pro I
>> encounter difficulty when trying to run some mpi programs.
>>
>> OSX 10.5 ships with OpenMPI apparently, such that there are mpi* programs
>> in /usr/bin
>>
>> I accepted the default when configuring/building/installing mpich2, such
>> that it gets installed to /usr/local/bin
>>
>> Once I realized that the wrong mpiexec was getting called, I chose to
>> "hide" the /usr/bin versions (not knowing otherwise how to disable or
>> uninstall the openmpi) by just creating a folder _mpi_hidden in /usr/bin and
>> placing all those mpi* programs in there.
>>
>> Now when I type "which mpiexec" it correctly states /usr/local/bin/mpiexec
>> (the mpich2 installed version)
>>
>> But when I try the example "mpiexec -n 3 hostname" I get the error message
>>
>> -bash: /usr/bin/mpiexec: No such file or directory
>>
>> I'm not clear about what's going on here.  Is the python mpiexec in
>> /usr/local/bin trying to call the preexisting mpiexec in /usr/bin?
>>
>> The original mpiexec in /usr/bin reports this when run without argument
>>
>> mpiexec (OpenRTE) 1.2.3
>> <usage/flags snipped>
>>
>> Thanks for any help untangling this problem.  I'm not sure why I didn't
>> run into this problem on a new imac that was setup similarly a couple months
>> ago...Perhaps OS preinstalled on that system was an earlier   rev of 10.5.
>>  For whatever reason it does not have any mpi programs in /usr/bin.
>>
>> -thomas blom
>> ices/ut austin
>>
>>
>>
>>
>>
>>
>>
>
> --
> Jeff Squyres
> Cisco Systems
>
>
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