Hi Alexandru,
you can read all about Boost.MPI at:
http://www.boost.org/doc/libs/1_43_0/doc/html/mpi.html
On Mon, Aug 9, 2010 at 10:27 PM, Alexandru Blidaru <alexsb92_at_[hidden]> wrote:
> I basically have to implement a 4D vector. An additional goal of my project
> is to support char, int, float and double datatypes in the vector.
If your "vector" is fixed-size (i.e., all vectors are comprised of
4 elements), then you can likely dispose of std::vector, use
C-style arrays with templated send/receive calls (that would
be just interfaces to MPI_Send/MPI_Recv)
// BEWARE: untested code!!!
template <typename T>
int send(T* vector, int dest, int tag, MPI_Comm comm) {
throw std::logic_error("called generic MyVector::send");
};
template <typename T>
int recv(T* vector, int source, int tag, MPI_Comm comm) {
throw std::logic_error("called generic MyVector::send");
};
and then you specialize the template for the types you actually use:
template <>
int send<double>(int* vector, int dest, int tag, MPI_Comm comm)
{
return MPI_Send(vector, 4, MPI_DOUBLE, dest, tag, comm);
};
template <>
int recv<double>(int* vector, int src, int tag, MPI_Comm comm)
{
return MPI_Recv(vector, 4, MPI_DOUBLE, dest, tag, comm);
};
// etc.
However, let me warn you that it would likely take more time and
effort to write all the template specializations and get them working
than just use Boost.MPI.
Best regards,
Riccardo
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