#include <reduce.h>
Inheritance diagram for bdm::experimental::Counter< TResult >:
Collaboration diagram for bdm::experimental::Counter< TResult >:
Public Member Functions | |
| Counter () | |
| Required for IO. More... | |
| Counter (bool(*condition)(Agent *), TResult(*post_process)(TResult)=nullptr) | |
| virtual | ~Counter ()=default |
| void | Reset () override |
| Resets the internal state between calculations. More... | |
| void | operator() (Agent *agent) override |
| TResult | GetResult () override |
| Reducer< TResult > * | NewCopy () const override |
 Public Member Functions inherited from bdm::experimental::Reducer< uint64_t > | |
| ~Reducer () override=default | |
| virtual Reducer * | NewCopy () const=0 |
| Public Member Functions inherited from bdm::Functor< void, Agent * > | |
| virtual | ~Functor ()=default |
| virtual void | operator() (TArgs... args)=0 |
Private Attributes | |
| SharedData< uint64_t > | tl_results_ |
| bool(* | condition_ )(Agent *) = nullptr |
| TResult(* | post_process_ )(TResult) = nullptr |
Detailed Description
template<typename TResult = uint64_t>
struct bdm::experimental::Counter< TResult >
Provides functions to count the number of agents for which the given condition is true.
The following code example demonstrates how to count all agents with diameter < 5.
auto diam_lt_5 = [](Agent* agent) {
return agent->GetDiameter() < 5;
};
Counter<> counter(diam_lt_5);
rm->ForEachAgentParallel(counter);
auto result = counter.GetResult();
The counting result can be post processed. Let's assume we want to divide the counting result by two:
auto diam_lt_5 = [](Agent* agent) {
return agent->GetDiameter() < 5;
};
auto post_process = [](uint64_t result) { return result / 2; };
Counter<> counter(diam_lt_5, post_process);
rm->ForEachAgentParallel(counter);
auto result = counter.GetResult();
The benefit in comparison with bdm::experimental::Count is that multiple counters can be combined and processed in one sweep over all agents.
- See also
- bdm::experimental::Reducer`
Constructor & Destructor Documentation
◆ Counter() [1/2]
template<typename TResult = uint64_t>
|
inline |
◆ Counter() [2/2]
template<typename TResult = uint64_t>
|
inline |
◆ ~Counter()
template<typename TResult = uint64_t>
|
virtualdefault |
Member Function Documentation
◆ GetResult()
template<typename TResult = uint64_t>
|
inlineoverridevirtual |
Implements bdm::experimental::Reducer< uint64_t >.
◆ NewCopy()
template<typename TResult = uint64_t>
|
inlineoverride |
◆ operator()()
template<typename TResult = uint64_t>
|
inlineoverride |
◆ Reset()
template<typename TResult = uint64_t>
|
inlineoverridevirtual |
Resets the internal state between calculations.
Implements bdm::experimental::Reducer< uint64_t >.
Member Data Documentation
◆ condition_
template<typename TResult = uint64_t>
|
private |
◆ post_process_
template<typename TResult = uint64_t>
|
private |
◆ tl_results_
template<typename TResult = uint64_t>
|
private |
The documentation for this struct was generated from the following file:
- core/analysis/reduce.h
