[petsc-dev] mpifort versus mpif90

[Barry Smith]

> On Jun 3, 2017, at 5:41 PM, Satish Balay <balay at mcs.anl.gov> wrote:
> 
> On Sat, 3 Jun 2017, Jed Brown wrote:
> 
>> We only need one FC now and the preferred executable name is mpifort
>> (other variants like mpif90 are deprecated in both MPICH and Open MPI).
>> I would just add this everywhere we currently have mpif90 but the code
>> is already super convoluted and I'd rather simplify if possible.  Does
>> anyone use --with-gnu-compilers versus --with-vendor-compilers?  Is it
>> tested anywhere?
> 
> Its not tested in the nightlybuilds - but I've seen these options (esp
> with-gnu-compilers) used in configure.log sent by users.
> 
> I'm not a fan of this interface - and won't miss it if removed.
> [its a bit ambiguous when one does stuff like: '--with-gnu-compilers=1 --with-mpi-dir=.']

  I have not objection to removing the --with-gnu-compilers and --with-vendor-compilers options. 

   We can deprecate them by having it print a message how to set the values directly instead of using these options.

   Barry

> 
> A related issue is - how does one specify compatible compilers [for
> c/c++/fortran]
> 
> Satish