ST Wong wrote:
> Hi,
>
> Thanks for your help.
>
> I changed to mpif77 but the result is the same. However, if I change
> MPI_INIT_ to MPI_Init, the first line of error is gone:
>
The AIX compiler folds UPPER case routine names to LOWER case unless you specify
the "-U" option which "Suppresses lowercase folding of Fortran code", so (unless
you specify "-U", changing the case from UPPER to LOWER should have no effect
(you could even call it as "MpI_iNiT" if you wanted to - FORTRAN only, NOT C/C++).
HOWEVER you have terminated "MPI_INIT" with an underscore ("_") which you have
removed when you converted the case and this is the problem.
If you built the LAM libraries without '-q extname' (the DEFAULT, same as '-q
noextname') then the names in the libraries will NOT be terminated with a '_'.
If you built the LAM libraries with a '-q extname' the names in the libraries
will have an '_' appended.
I assume you did NOT use '-q extname', in which case you shouldn't have an '_'
when you call the routines and you shouldn't compile your own code with '-q
extname'.
Regards
Neil
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