Hello,
I have a question of the Fortran interface of subroutine MatNullSpaceCreate.
I tried to call the subroutine in the following form:
Vec :: dummyVec, dummyVecs(1)
MatNullSpace :: nullspace
INTEGER :: ierr
(a) call MatNullSpaceCreate( PETSC_COMM_WORLD, PETSC_TRUE,
PETSC_NULL_INTEGER, dummyVec, nullspace, ierr)
(b) call MatNullSpaceCreate( PETSC_COMM_WORLD, PETSC_TRUE,
PETSC_NULL_INTEGER, dummyVecs, nullspace, ierr)
(a) and (b) gave me the same error during compilation: no specific
subroutine for the generic MatNullSpaceCreate.
I am using the latest version of Petsc. I just did a "git pull" and
re-build it.
How can I call the subroutine ?
In addition, I found two 'petscmat.h90' :
petsc/include/petsc/finclude/ftn-auto/petscmat.h90 and
petsc/src/mat/f90-mod/petscmat.h90.
The former defines a subroutine MatNullSpaceCreate in the above form
(b). The latter provides generic interface for both (a) and (b).
I am not sure if this relates to the error I get.
Thank you.
Frank
