[petsc-dev] PetscSFCount is not compatible with MPI_Count

[Fande Kong]

Hi All,

When building PETSc with 64 bit indices, it seems that PetscSFCount is
64-bit integer while MPI_Count is still 32 bit.

typedef long MPI_Count;

typedef PetscInt   PetscSFCount;


 I had the following errors. Do I have a bad MPI?

Thanks,

Fande


Users/kongf/projects/moose6/petsc1/src/vec/is/sf/impls/basic/neighbor/sfneighbor.c:171:18:
error: no matching function for call to 'MPI_Ineighbor_alltoallv_c'

PetscCallMPI(MPIU_Ineighbor_alltoallv(rootbuf,dat->rootcounts,dat->rootdispls,unit,leafbuf,dat->leafcounts,dat->leafdispls,unit,distcomm,req));

 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petsc/private/mpiutils.h:97:79:
note: expanded from macro 'MPIU_Ineighbor_alltoallv'
  #define MPIU_Ineighbor_alltoallv(a,b,c,d,e,f,g,h,i,j)
  MPI_Ineighbor_alltoallv_c(a,b,c,d,e,f,g,h,i,j)

  ^~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petscerror.h:407:32: note:
expanded from macro 'PetscCallMPI'
    PetscMPIInt _7_errorcode = __VA_ARGS__;
                   \
                               ^~~~~~~~~~~
/Users/kongf/mambaforge3/envs/moose/include/mpi_proto.h:945:5: note:
candidate function not viable: no known conversion from 'PetscSFCount *'
(aka 'long long *') to 'const MPI_Count *' (aka 'const long *') for 2nd
argument
int MPI_Ineighbor_alltoallv_c(const void *sendbuf, const MPI_Count
sendcounts[],
    ^
/Users/kongf/projects/moose6/petsc1/src/vec/is/sf/impls/basic/neighbor/sfneighbor.c:195:18:
error: no matching function for call to 'MPI_Ineighbor_alltoallv_c'

PetscCallMPI(MPIU_Ineighbor_alltoallv(leafbuf,dat->leafcounts,dat->leafdispls,unit,rootbuf,dat->rootcounts,dat->rootdispls,unit,distcomm,req));

 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petsc/private/mpiutils.h:97:79:
note: expanded from macro 'MPIU_Ineighbor_alltoallv'
  #define MPIU_Ineighbor_alltoallv(a,b,c,d,e,f,g,h,i,j)
  MPI_Ineighbor_alltoallv_c(a,b,c,d,e,f,g,h,i,j)

  ^~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petscerror.h:407:32: note:
expanded from macro 'PetscCallMPI'
    PetscMPIInt _7_errorcode = __VA_ARGS__;
                   \
                               ^~~~~~~~~~~
/Users/kongf/mambaforge3/envs/moose/include/mpi_proto.h:945:5: note:
candidate function not viable: no known conversion from 'PetscSFCount *'
(aka 'long long *') to 'const MPI_Count *' (aka 'const long *') for 2nd
argument
int MPI_Ineighbor_alltoallv_c(const void *sendbuf, const MPI_Count
sendcounts[],
    ^
/Users/kongf/projects/moose6/petsc1/src/vec/is/sf/impls/basic/neighbor/sfneighbor.c:240:18:
error: no matching function for call to 'MPI_Neighbor_alltoallv_c'

PetscCallMPI(MPIU_Neighbor_alltoallv(rootbuf,dat->rootcounts,dat->rootdispls,unit,leafbuf,dat->leafcounts,dat->leafdispls,unit,comm));

 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petsc/private/mpiutils.h:96:79:
note: expanded from macro 'MPIU_Neighbor_alltoallv'
  #define MPIU_Neighbor_alltoallv(a,b,c,d,e,f,g,h,i)
   MPI_Neighbor_alltoallv_c(a,b,c,d,e,f,g,h,i)

  ^~~~~~~~~~~~~~~~~~~~~~~~
/Users/kongf/projects/moose6/petsc1/include/petscerror.h:407:32: note:
expanded from macro 'PetscCallMPI'
    PetscMPIInt _7_errorcode = __VA_ARGS__;
                   \
                               ^~~~~~~~~~~
/Users/kongf/mambaforge3/envs/moose/include/mpi_proto.h:1001:5: note:
candidate function not viable: no known conversion from 'PetscSFCount *'
(aka 'long long *') to 'const MPI_Count *' (aka 'const long *') for 2nd
argument
int MPI_Neighbor_alltoallv_c(const void *sendbuf, const MPI_Count
sendcounts[],
    ^
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