typename std::enable_if<
boost::proto::matches<
typename boost::proto::result_of::as_expr<Expr>::type,
mpi_vector_expr_grammar
>::value,
const vector&
>::type
operator=(const Expr &expr) {
(*local_data) = extract_local_expression()(boost::proto::as_child(expr));
return *this;
}
typename std::enable_if<
boost::proto::matches<Expr, mpi_vector_expr_grammar>::value, T
>::type
operator()(const Expr &expr) const {
T local = reduce(extract_local_expression()(boost::proto::as_child(expr)));
T global;
MPI_Allreduce(&local, &global, 1,
mpi_type<T>(), mpi_reduce_op<RDC>(), mpi.comm);
return global;
}
typename std::enable_if<
boost::proto::matches<Expr, mpi_multivector_expr_grammar>::value,
std::array<T, boost::result_of<mutltiex_dimension(Expr)>::type::value>
>::type
operator()(const Expr &expr) const {
std::array<T, boost::result_of<mutltiex_dimension(Expr)>::type::value>
local = reduce(extract_local_expression()(boost::proto::as_child(expr))),
global;
MPI_Allreduce(local.data(), global.data(), boost::result_of<mutltiex_dimension(Expr)>::type::value,
mpi_type<T>(), mpi_reduce_op<RDC>(), mpi.comm);
return global;
}