4 PETSC_INTERN PetscErrorCode PetscSFGetGraph_Allgatherv(PetscSF sf, PetscInt *nroots, PetscInt *nlea…  in PetscSFGetGraph_Allgatherv()  argument
12   if (nroots) *nroots = sf->nroots;  in PetscSFGetGraph_Allgatherv()
61       nRanksWithZeroRoots = (sf->nroots == 0) ? 1 : 0; /* I have no roots */  in PetscSFSetUp_Allgatherv()
66         dat->bcast_root = sf->nroots > 0 ? rank : -1;  in PetscSFSetUp_Allgatherv()
117   PetscCall(PetscMPIIntCast(sf->nroots, &sendcount));  in PetscSFBcastBegin_Allgatherv()
144 …, (const char *)leafdata + (size_t)rstart * link->unitbytes, (size_t)sf->nroots * link->unitbytes)…  in PetscSFReduceBegin_Allgatherv()
230   PetscCall(PetscMPIIntCast(sf->nroots, &sendcount));  in PetscSFBcastToZero_Allgatherv()
388       for (PetscMPIInt i = 0; i <= size; i++) dat->ioffset[i] = i * sf->nroots;  in PetscSFGetLeafRanks_Allgatherv()
397         for (PetscInt j = 0; j < sf->nroots; j++) dat->irootloc[i * sf->nroots + j] = j;  in PetscSFGetLeafRanks_Allgatherv()
407   PetscInt     i, nroots, nleaves, rstart, *ilocal;  in PetscSFCreateLocalSF_Allgatherv()  local
412   nleaves = sf->nleaves ? sf->nroots : 0; /* sf->nleaves can be zero with SFGather(v) */  in PetscSFCreateLocalSF_Allgatherv()
413   nroots  = nleaves;  in PetscSFCreateLocalSF_Allgatherv()
425 …PetscCall(PetscSFSetGraph(lsf, nroots, nleaves, ilocal, PETSC_OWN_POINTER, iremote, PETSC_OWN_POIN…  in PetscSFCreateLocalSF_Allgatherv()