Re: [petsc-users] error with MPI + ifort

One gets such a error message if mpif.h is used in multiple modules. mpi.mod [if used] is one module that will have this symbol. And if there is a user module [or petsc module] also using mpif.h - then it will get a duplicate copy of these symbols - and will result in such a conflict. Satish

Re: [petsc-users] error with MPI + ifort

> On 07-Mar-2018, at 9:52 PM, Smith, Barry F. wrote: > > You have multiple > >use > >make sure they don't have multiple paths back to MPI. For example if two > of them have use petscsys etc > > Barry None of the other modules I include have “use

Re: [petsc-users] error with MPI + ifort

You have multiple use make sure they don't have multiple paths back to MPI. For example if two of them have use petscsys etc Barry > On Mar 7, 2018, at 10:11 AM, Praveen C wrote: > > > >> On 07-Mar-2018, at 9:34 PM, Smith, Barry F.

Re: [petsc-users] error with MPI + ifort

Start with one use statement and slowly add more. My guess is multiple ones of those modules use the MPI module hence MPI_SUM appears through multiple paths. Barry > On Mar 7, 2018, at 8:53 AM, Praveen C wrote: > > Dear all > > In a code like this > > subroutine

Re: [petsc-users] error with MPI + ifort

Hi Praveen, did you try to include the PETSC_AVOID_MPIF_H? I mean, include: -DPETSC_AVOID_MPIF_H=1 when using mpiifort and I think that the problem will be solved. 2018-03-07 15:53 GMT+01:00 Praveen C : > Dear all > > In a code like this > > subroutine checkgrid(g) > >