[Nek5000-users] makenek, sun complier & mpi

[nek5000-users at lists.mcs.anl.gov]

On Wed, 2010-04-21 at 14:25 +0200, nek5000-users at lists.mcs.anl.gov
wrote:
> Ok I think what happens is the following:
> 
> We need to detect which compilers are used by the MPI-wrappers. Depending on the MPI implementation there are some flags (e.g. -showme / -show) you can use to figure that out.
> 
> MPICH doesn't know the flag -showme hence it is passed to the compiler (in your case sunf95).
> The sun compiler says this is an unknown flag and returns a ZERO exit code. 
> This is weird if not to say wrong because you would assume that the right exit code should be NON-ZERO in this case!
> 
> It looks like only the SUN compiler behaves wrong in this situation.
> Unfortunately I don't have access to machine with MPICH/SUN so I cannot test my hypothesis.

Hi Stefan,

I have made an account for you on a workstation here with the Sun
compiler.  The various Mpichs are in /usr/local/progams.  Currently
mpif77 points to the mpich using the Sun compiler.

login: stefan
pass: dnsnek5000

Perhaps one could get the compiler name from the mpif77 script:

[fmuldoo at tetra programs]# grep 'FC="ifort"' mpif77
FC="ifort"

Cheers,
Frank

> 
> Stefan
> 
> 
> On Apr 21, 2010, at 2:00 PM, nek5000-users at lists.mcs.anl.gov wrote:
> 
> > What MPI implementation are you using?
> > 
> > Stefan
> > 
> > 
> > On Apr 21, 2010, at 1:58 PM, nek5000-users at lists.mcs.anl.gov wrote:
> > 
> >> Hello all,
> >> 
> >> I am seeing the following error message when I use an mpif77 and mpicc
> >> that use the Sun compilers.  Everything is fine if in makenek F77=sunf95
> >> and CC=suncc (and IFMPI="false"), or if using mpif77 and mpicc that use
> >> the Intel compilers.
> >> 
> >> Cheers,
> >> Frank
> >> 
> >> 
> >> sunf95: Warning: Option -showme passed to ld, if ld is invoked, ignored
> >> otherwise
> >> Usage: sunf95 [ options ] files.  Use 'sunf95 -flags' for details
> >> WARNING: Cannot detect compiler specfic flags
> >>     echo  - to promote REAL to 8 bytes
> >>     echo  - to invoke preprocessor first
> >> Please edit the makefile and specify the requested compiler flags in the
> >> P variable!
> >> 
> >> -- 
> >> Frank Herbert Muldoon, Ph.D. Mechanical Engineering
> >> Technische Universität Wien (Technical University of Vienna)
> >> Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
> >> Mechanics and Heat Transfer)
> >> Resselgasse 3
> >> 1040 Wien
> >> Tel: +4315880132232
> >> Fax: +4315880132299 
> >> Cell:+436765203470
> >> fmuldoo (skype)
> >> http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html
> >> 
> >> _______________________________________________
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> > 
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-- 
Frank Herbert Muldoon, Ph.D. Mechanical Engineering
Technische Universität Wien (Technical University of Vienna)
Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
Mechanics and Heat Transfer)
Resselgasse 3
1040 Wien
Tel: +4315880132232
Fax: +4315880132299 
Cell:+436765203470
fmuldoo (skype)
http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html