MPIGetaddressvoid
MPI_Get_address is a function in the Message Passing Interface (MPI) used to obtain the memory address of a local object as a value in the MPI address space. It is primarily employed when constructing derived datatypes, such as structures, where portable displacements are required across processes.
In C, the function typically has the signature: int MPI_Get_address(void *location, MPI_Aint *address). The location parameter
Common usage involves computing displacements for derived datatypes. A typical pattern is to call MPI_Get_address for
Return values indicate success (MPI_SUCCESS) or an error code, in which case the MPI error handler is