Fortran - Re: problems with mpich installation on beowulf cluster with ifort

Author

Re: problems with mpich installation on beowulf cluster with ifort

Michael Wild

2005-11-21, 7:01 pm

Hi

I remember having this problem too, but can't remember the solution :-)
It was something one has to fix with the configure script (some option).
I think it's mentioned in the installationd doc. As for gcc and ifort:
they don't work together. You definitely should use icc to compile MPICH
if you're going to use it with ifort.

Sorry I couldn't help further

Michael

Tim Prince

2005-11-21, 7:01 pm

Michael Wild wrote:
> Hi
>
> I remember having this problem too, but can't remember the solution :-)
> It was something one has to fix with the configure script (some option).
> I think it's mentioned in the installationd doc. As for gcc and ifort:
> they don't work together. You definitely should use icc to compile MPICH
> if you're going to use it with ifort.
>
As I pointed out in my reply to another instance of this post, it's OK
to mix ifort and gcc/g++, but probably not OK to mix icc and g++ in the
mpich build.

Greg Lindahl

2005-11-21, 7:01 pm

In article <a3ngf.22899$Zv5.22021@newssvr25.news.prodigy.net>,
Tim Prince <tprince@nospamcomputer.org> wrote:

> but probably not OK to mix icc and g++ in the
> mpich build.

Er, C++ is only used to build the C++ bindings (which are not built by
default, yes?), and yes, g++ and Intel's C++ are very compatible.

The same is true for PathScale's C++: you can mix and match .o's
between g++ and pathCC and it just works.

-- greg
(employed by, not speaking for, PathScale.)

Michael Wild

2005-11-21, 7:01 pm

Well, I never really dug in thoroughly, but as I said: when I used the
gnu compilers to compile MPICH and then ifort to compile my fortran,
things didn't work, so i just went the easy way, and it worked using icc
and icpc... It's just my experience, and if others know the reason or
have a solution, I'd be glad to hear about it :-)

Michael

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