LAM/MPI does not currently allow you to specify additional arguments
to be wrapped by the wrapper compilers. So you will need to specify
those additional arguments after the wrapper compiler. E.g,
shell$ mpicc -m64 hello.c -o hello
As a side note, Open MPI has added this feature in some of the
current releases. At configure time if you specify:
shell$ ./configure --with-wrapper-cflags=-m64 \
--with-wrapper-cxxflags=-m64 \
--with-wrapper-fflags=-m64 \
--with-wrapper-fcflags=-m64
That will add the '-m64' flag to the wrapper compiler so you only
need to invoke:
shell$ mpicc hello.c -o hello
-- Josh
On Oct 10, 2006, at 10:52 AM, Andrew D. Fant wrote:
> Kevin R Bryant wrote:
>> The easiest thing you could do would be to just install your head
>> node
>> w/ 32bit linux, not 64bit linux. (unless for whatever reason you need
>> 64bit libraries on the head node).
>>
>> If 32bit head node is not an option, then you could always setup
>> command
>> alias's to auto add in -m32. The only downside to this would be for
>> users that actually want to compile some 64bit code....
>
> We've been through the mill on the 32 vs 64 bit issues in our group
> meetings
> here too many times. It comes down to the fact that we need 64 bit
> applications, but the only way that we could do it was as a new
> head node. An
> ugly compromise, but way above my pay-grade.
>
> I have a wrapper shell script that does add -m32 to compiler
> commands that don't
> already have -m64 on them, but I don't trust it to be bulletproof when
> interacting with more complex drivers like mpicc. My question is
> based on the
> way that the automake tools do pick up certain flags from the
> environment when
> building LAM-MPI and embed them into the mpicc wrappers. It would
> seem like
> there ought to be a way to expand that set. I'm sure it could be
> done in the
> source, but it would be nice to see if a short-cut exists.
>
> Thanks,
> Andy
>
>
> --
> Andrew Fant | The lion and the calf shall lie |
> Disclaimer:
> andrew.fant_at_[hidden] | down together, but the calf won't | Do you
> REALLY
> UIT/USG | get much sleep. | think I
> can
> Tufts University | W. Allen | speak
> for Tufts?
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
----
Josh Hursey
jjhursey_at_[hidden]
http://www.open-mpi.org/
|
