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///
/// @file LoadBalancerP2.hpp
/// @brief This load balancer assigns work to the threads in the
/// computation of the 2nd partial sieve function.
/// It is used by the P2(x, a) and B(x, y) functions.
///
/// Copyright (C) 2021 Kim Walisch, <kim.walisch@gmail.com>
///
/// This file is distributed under the BSD License. See the COPYING
/// file in the top level directory.
///
#ifndef LOADBALANCERP2_HPP
#define LOADBALANCERP2_HPP
#include <int128_t.hpp>
#include <OmpLock.hpp>
#include <stdint.h>
namespace primecount {
class LoadBalancerP2
{
public:
LoadBalancerP2(maxint_t x, int64_t sieve_limit, int threads, bool is_print);
bool get_work(int64_t& low, int64_t& high);
int get_threads() const;
private:
void print_status();
int64_t low_ = 0;
int64_t sieve_limit_ = 0;
int64_t min_thread_dist_ = 0;
int64_t thread_dist_ = 0;
double time_ = 0;
int threads_ = 0;
int precision_ = 0;
bool is_print_ = false;
OmpLock lock_;
};
} // namespace
#endif
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