Re: [petsc-users] error with MPI + ifort
On Wed, 7 Mar 2018, 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 Barry, Having 'use petscsys' from multiple modules won't cause problems. If mpi.h gets included - in multiple modules [directly via mpi.h - or indirectly - via petsc includes petsc.h ] - it causes problems. Satish
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 On Wed, 7 Mar 2018, 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 > > > > On Mar 7, 2018, at 10:11 AM, Praveen C wrote: > > > > > > > >> On 07-Mar-2018, at 9:34 PM, Smith, Barry F. wrote: > >> > >> 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 > > > > Hello Barry > > > > If you mean use of “use mpi”, then I have dont have this anywhere in my > > code. I only include petsc includes and modules. > > > > Thanks > > praveen > >
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 petscsys” inside them. Thanks praveen
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. wrote: >> >> 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 > > Hello Barry > > If you mean use of “use mpi”, then I have dont have this anywhere in my code. > I only include petsc includes and modules. > > Thanks > praveen
Re: [petsc-users] error with MPI + ifort
> On 07-Mar-2018, at 9:34 PM, Smith, Barry F. wrote: > > 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 Hello Barry If you mean use of “use mpi”, then I have dont have this anywhere in my code. I only include petsc includes and modules. Thanks praveen
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 checkgrid(g) > #include >use petscsys >use mgrid >use celldata >use comdata >implicit none >type(grid),intent(in) :: g >! Local variables >integer:: i, j, v, tc, nv >PetscInt :: v1, v2 >PetscErrorCode :: ierr > >! Sum g%nvl over all partitions. >Call MPI_Allreduce(g%nvl, nv, 1, MPI_INT, MPI_SUM, & > PETSC_COMM_WORLD, ierr); CHKERRQ(ierr) > end subroutine checkgrid > > we get an error while compiling with mpich-3.2.1 + ifort + petsc-3.8.x > > mpifort -c -O3 -fpp -nogen-interface -W1 -WB -DNS -DVERSION=\"f8e6c025\" > -I/usr/local/share/applications/Intel_Compiler/petsc/include > -I/usr/local/share/applications/Intel_Compiler/hdf5/include -DHDF5 -Tf > checkgrid.F90 -o checkgrid.o -free > checkgrid.F90(40): error #6405: The same named entity from different modules > and/or program units cannot be referenced. [MPI_SUM] >Call MPI_Allreduce(g%nvl, nv, 1, MPI_INT, MPI_SUM, & > -^ > compilation aborted for checkgrid.F90 (code 1) > > It works fine with clang and gnu compilers. > > Thanks > praveen >
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) > > #include > >use petscsys > >use mgrid > >use celldata > >use comdata > >implicit none > >type(grid),intent(in) :: g > >! Local variables > >integer:: i, j, v, tc, nv > >PetscInt :: v1, v2 > >PetscErrorCode :: ierr > > >! Sum g%nvl over all partitions. > >Call MPI_Allreduce(g%nvl, nv, 1, MPI_INT, MPI_SUM, & > > PETSC_COMM_WORLD, ierr); CHKERRQ(ierr) > > end subroutine checkgrid > > > we get an error while compiling with mpich-3.2.1 + ifort + petsc-3.8.x > > mpifort -c -O3 -fpp -nogen-interface -W1 -WB -DNS -DVERSION=\"f8e6c025\" > -I/usr/local/share/applications/Intel_Compiler/petsc/include > -I/usr/local/share/applications/Intel_Compiler/hdf5/include -DHDF5 -Tf > checkgrid.F90 -o checkgrid.o -free > checkgrid.F90(40): error #6405: The same named entity from different > modules and/or program units cannot be referenced. [MPI_SUM] >Call MPI_Allreduce(g%nvl, nv, 1, MPI_INT, MPI_SUM, & > -^ > compilation aborted for checkgrid.F90 (code 1) > > It works fine with clang and gnu compilers. > > Thanks > praveen > >
