MPIScattervconst
MPIScattervconst is a term used in some MPI-related codebases to denote a variant of the Scatterv operation in which the send buffer is treated as const. It is not part of the official MPI standard and does not appear in the MPI-3 or MPI-4 specifications. In practice, developers either use MPI_Scatterv with a const-qualified send buffer or provide a language-specific wrapper that enforces const-c correctness.
A representative, language-dependent signature might be:
int MPIScattervconst(const void sendbuf, const int sendcounts, const int displs, MPI_Datatype sendtype, void recvbuf, int recvcount,
Here the sendbuf is const, while recvbuf is non-const because it receives data. The remaining parameters follow
Semantics: MPIScattervconst distributes data from the root process to all processes in the communicator, with varying
Usage considerations: Because MPIScattervconst is not a standard function, portability depends on the presence of a
See also: MPI_Scatterv, MPI_Gatherv, MPI_Bcast, const correctness in MPI.