36   void        *rootbuf = NULL, *leafbuf = NULL; /* buffer seen by MPI */  in PetscSFBcastBegin_Allgather()  local
45 …PetscCall(PetscSFLinkGetMPIBuffersAndRequests(sf, link, PETSCSF_ROOT2LEAF, &rootbuf, &leafbuf, &re…  in PetscSFBcastBegin_Allgather()
47   PetscCallMPI(MPIU_Iallgather(rootbuf, sendcount, unit, leafbuf, sendcount, unit, comm, req));  in PetscSFBcastBegin_Allgather()
57   void              *rootbuf = NULL, *leafbuf = NULL; /* buffer seen by MPI */  in PetscSFReduceBegin_Allgather()  local
73 …PetscCall(PetscSFLinkGetMPIBuffersAndRequests(sf, link, PETSCSF_LEAF2ROOT, &rootbuf, &leafbuf, &re…  in PetscSFReduceBegin_Allgather()
76 …if (rank == 0 && link->leafbuf_alloc[PETSCSF_REMOTE][link->leafmtype_mpi] == leafbuf) leafbuf = MP…  in PetscSFReduceBegin_Allgather()
79 …PetscCallMPI(MPI_Reduce(leafbuf, link->leafbuf_alloc[PETSCSF_REMOTE][link->leafmtype_mpi], count, …  in PetscSFReduceBegin_Allgather()
91   void        *rootbuf = NULL, *leafbuf = NULL;  in PetscSFBcastToZero_Allgather()  local
100 …PetscCall(PetscSFLinkGetMPIBuffersAndRequests(sf, link, PETSCSF_ROOT2LEAF, &rootbuf, &leafbuf, &re…  in PetscSFBcastToZero_Allgather()
102 …PetscCallMPI(MPIU_Igather(rootbuf == leafbuf ? MPI_IN_PLACE : rootbuf, sendcount, unit, leafbuf, s…  in PetscSFBcastToZero_Allgather()
107 …>Memcpy)(link, PETSC_MEMTYPE_DEVICE, leafdata, PETSC_MEMTYPE_HOST, link->leafbuf[PETSCSF_REMOTE][P…  in PetscSFBcastToZero_Allgather()