memory distribution table
Description
Given an array size, this class decides which process will own which part of a distributed memory array such as disarray
.
Example
distributor ownership (100);
TODO
Ambiguous use of size() and dis_size(). Here size() refers to n_process(), while size(iproc) and dis_size() refer to the size of the index ranges. Then, size() should be avoided, and we should use n_process() instead.
Implementation
This documentation has been generated from file linalg/lib/distributor.h
class distributor : public Vector<std::allocator<int>::size_type> {
public:
typedef std::allocator<int>::size_type
size_type;
typedef Vector<size_type>
_base;
distributor(
distributor(const distributor&);
field::size_type size_type
see the communicator page for the full documentation
size_type last_index() const
size_type n_process() const
number of processes
Vector< size_type > _base
size_type find_owner(size_type dis_i) const
find iproc associated to a global index dis_i: CPU=log(nproc)
void resize(size_type dis_size=0, const communicator_type &c=communicator_type(), size_type loc_size=decide)
size_type dis_size() const
global and local sizes
communicator communicator_type
static tag_type get_new_tag()
returns a new tag
size_type process() const
current process id
bool operator!=(const distributor &) const
size_type first_index() const
global index range and local size owned by current process
bool operator==(const distributor &) const
_base::const_iterator const_iterator
bool is_owned(size_type dis_i, size_type iproc) const
true when dis_i in [first_index(iproc):last_index(iproc)[
static const size_type decide
std::allocator< int >::size_type size_type
const communicator_type & comm() const