Edit: /usr/include/oneapi/tbb/blocked_range3d.h (4455B)
/*
Copyright (c) 2005-2021 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifndef __TBB_blocked_range3d_H
#define __TBB_blocked_range3d_H
#include
#include "detail/_config.h"
#include "detail/_namespace_injection.h"
#include "blocked_range.h"
namespace tbb {
namespace detail {
namespace d1 {
//! A 3-dimensional range that models the Range concept.
/** @ingroup algorithms */
template
__TBB_requires(blocked_range_value &&
blocked_range_value &&
blocked_range_value)
class blocked_range3d {
public:
//! Type for size of an iteration range
using page_range_type = blocked_range;
using row_range_type = blocked_range;
using col_range_type = blocked_range;
private:
page_range_type my_pages;
row_range_type my_rows;
col_range_type my_cols;
public:
blocked_range3d( PageValue page_begin, PageValue page_end,
RowValue row_begin, RowValue row_end,
ColValue col_begin, ColValue col_end ) :
my_pages(page_begin,page_end),
my_rows(row_begin,row_end),
my_cols(col_begin,col_end)
{}
blocked_range3d( PageValue page_begin, PageValue page_end, typename page_range_type::size_type page_grainsize,
RowValue row_begin, RowValue row_end, typename row_range_type::size_type row_grainsize,
ColValue col_begin, ColValue col_end, typename col_range_type::size_type col_grainsize ) :
my_pages(page_begin,page_end,page_grainsize),
my_rows(row_begin,row_end,row_grainsize),
my_cols(col_begin,col_end,col_grainsize)
{}
//! True if range is empty
bool empty() const {
// Range is empty if at least one dimension is empty.
return my_pages.empty() || my_rows.empty() || my_cols.empty();
}
//! True if range is divisible into two pieces.
bool is_divisible() const {
return my_pages.is_divisible() || my_rows.is_divisible() || my_cols.is_divisible();
}
blocked_range3d( blocked_range3d& r, split split_obj ) :
my_pages(r.my_pages),
my_rows(r.my_rows),
my_cols(r.my_cols)
{
do_split(r, split_obj);
}
blocked_range3d( blocked_range3d& r, proportional_split& proportion ) :
my_pages(r.my_pages),
my_rows(r.my_rows),
my_cols(r.my_cols)
{
do_split(r, proportion);
}
//! The pages of the iteration space
const page_range_type& pages() const { return my_pages; }
//! The rows of the iteration space
const row_range_type& rows() const { return my_rows; }
//! The columns of the iteration space
const col_range_type& cols() const { return my_cols; }
private:
template
void do_split( blocked_range3d& r, Split& split_obj) {
if ( my_pages.size()*double(my_rows.grainsize()) < my_rows.size()*double(my_pages.grainsize()) ) {
if ( my_rows.size()*double(my_cols.grainsize()) < my_cols.size()*double(my_rows.grainsize()) ) {
my_cols.my_begin = col_range_type::do_split(r.my_cols, split_obj);
} else {
my_rows.my_begin = row_range_type::do_split(r.my_rows, split_obj);
}
} else {
if ( my_pages.size()*double(my_cols.grainsize()) < my_cols.size()*double(my_pages.grainsize()) ) {
my_cols.my_begin = col_range_type::do_split(r.my_cols, split_obj);
} else {
my_pages.my_begin = page_range_type::do_split(r.my_pages, split_obj);
}
}
}
};
} // namespace d1
} // namespace detail
inline namespace v1 {
using detail::d1::blocked_range3d;
} // namespace v1
} // namespace tbb
#endif /* __TBB_blocked_range3d_H */