mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-25 05:20:34 +05:00
362 lines
9.9 KiB
C++
362 lines
9.9 KiB
C++
#ifndef NETGEN_CORE_PROFILER_HPP
|
|
#define NETGEN_CORE_PROFILER_HPP
|
|
|
|
#include <array>
|
|
#include <chrono>
|
|
#include <functional>
|
|
#include <string>
|
|
|
|
#include "array.hpp"
|
|
#include "logging.hpp"
|
|
#include "paje_trace.hpp"
|
|
#include "taskmanager.hpp"
|
|
#include "utils.hpp"
|
|
|
|
namespace ngcore
|
|
{
|
|
class NgProfiler
|
|
{
|
|
public:
|
|
/// maximal number of timers
|
|
enum { SIZE = 8*1024 };
|
|
|
|
struct TimerVal
|
|
{
|
|
TimerVal() = default;
|
|
|
|
double tottime = 0.0;
|
|
TTimePoint starttime=0;
|
|
double flops = 0.0;
|
|
double loads = 0.0;
|
|
double stores = 0.0;
|
|
long count = 0;
|
|
std::string name = "";
|
|
int usedcounter = 0;
|
|
};
|
|
|
|
NGCORE_API static std::vector<TimerVal> timers;
|
|
|
|
NGCORE_API static TTimePoint * thread_times;
|
|
NGCORE_API static TTimePoint * thread_flops;
|
|
NGCORE_API static std::shared_ptr<Logger> logger;
|
|
NGCORE_API static std::array<size_t, NgProfiler::SIZE> dummy_thread_times;
|
|
NGCORE_API static std::array<size_t, NgProfiler::SIZE> dummy_thread_flops;
|
|
private:
|
|
|
|
NGCORE_API static std::string filename;
|
|
public:
|
|
NgProfiler();
|
|
~NgProfiler();
|
|
|
|
NgProfiler(const NgProfiler &) = delete;
|
|
NgProfiler(NgProfiler &&) = delete;
|
|
void operator=(const NgProfiler &) = delete;
|
|
void operator=(NgProfiler &&) = delete;
|
|
|
|
static void SetFileName (const std::string & afilename) { filename = afilename; }
|
|
|
|
/// create new timer, use integer index
|
|
NGCORE_API static int CreateTimer (const std::string & name);
|
|
|
|
NGCORE_API static void Reset ();
|
|
|
|
|
|
/// start timer of index nr
|
|
static void StartTimer (int nr)
|
|
{
|
|
timers[nr].starttime = GetTimeCounter(); timers[nr].count++;
|
|
}
|
|
|
|
/// stop timer of index nr
|
|
static void StopTimer (int nr)
|
|
{
|
|
timers[nr].tottime += (GetTimeCounter()-timers[nr].starttime)*seconds_per_tick;
|
|
}
|
|
|
|
static void StartThreadTimer (size_t nr, size_t tid)
|
|
{
|
|
thread_times[tid*SIZE+nr] -= GetTimeCounter(); // NOLINT
|
|
}
|
|
|
|
static void StopThreadTimer (size_t nr, size_t tid)
|
|
{
|
|
thread_times[tid*SIZE+nr] += GetTimeCounter(); // NOLINT
|
|
}
|
|
|
|
static void AddThreadFlops (size_t nr, size_t tid, size_t flops)
|
|
{
|
|
thread_flops[tid*SIZE+nr] += flops; // NOLINT
|
|
}
|
|
|
|
/// if you know number of flops, provide them to obtain the MFlop - rate
|
|
static void AddFlops (int nr, double aflops) { timers[nr].flops += aflops; }
|
|
static void AddLoads (int nr, double aloads) { timers[nr].loads += aloads; }
|
|
static void AddStores (int nr, double astores) { timers[nr].stores += astores; }
|
|
|
|
static int GetNr (const std::string & name)
|
|
{
|
|
for (int i = SIZE-1; i >= 0; i--)
|
|
if (timers[i].name == name)
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
static double GetTime (int nr)
|
|
{
|
|
return timers[nr].tottime;
|
|
}
|
|
|
|
static double GetTime (const std::string & name)
|
|
{
|
|
for (int i = SIZE-1; i >= 0; i--)
|
|
if (timers[i].name == name)
|
|
return GetTime (i);
|
|
return 0;
|
|
}
|
|
|
|
static long int GetCounts (int nr)
|
|
{
|
|
return timers[nr].count;
|
|
}
|
|
|
|
static double GetFlops (int nr)
|
|
{
|
|
return timers[nr].flops;
|
|
}
|
|
|
|
/// change name
|
|
static void SetName (int nr, const std::string & name) { timers[nr].name = name; }
|
|
static std::string GetName (int nr) { return timers[nr].name; }
|
|
/// print profile
|
|
NGCORE_API static void Print (FILE * prof);
|
|
|
|
class RegionTimer
|
|
{
|
|
int nr;
|
|
public:
|
|
/// start timer
|
|
RegionTimer (int anr) : nr(anr) { NgProfiler::StartTimer(nr); }
|
|
/// stop timer
|
|
~RegionTimer () { NgProfiler::StopTimer(nr); }
|
|
|
|
RegionTimer() = delete;
|
|
RegionTimer(const RegionTimer &) = delete;
|
|
RegionTimer(RegionTimer &&) = delete;
|
|
void operator=(const RegionTimer &) = delete;
|
|
void operator=(RegionTimer &&) = delete;
|
|
};
|
|
};
|
|
|
|
|
|
struct TNoTracing{ static constexpr bool do_tracing=false; };
|
|
struct TTracing{ static constexpr bool do_tracing=true; };
|
|
|
|
struct TNoTiming{ static constexpr bool do_timing=false; };
|
|
struct TTiming{ static constexpr bool do_timing=true; };
|
|
|
|
namespace detail {
|
|
|
|
template<typename T>
|
|
constexpr bool is_tracing_type_v = std::is_same_v<T, TNoTracing> || std::is_same_v<T, TTracing>;
|
|
|
|
template<typename T>
|
|
constexpr bool is_timing_type_v = std::is_same_v<T, TNoTiming> || std::is_same_v<T, TTiming>;
|
|
}
|
|
|
|
static TNoTracing NoTracing;
|
|
static TNoTiming NoTiming;
|
|
|
|
template<typename TTracing=TTracing, typename TTiming=TTiming>
|
|
class Timer
|
|
{
|
|
int timernr;
|
|
int Init( const std::string & name )
|
|
{
|
|
return NgProfiler::CreateTimer (name);
|
|
}
|
|
public:
|
|
static constexpr bool do_tracing = TTracing::do_tracing;
|
|
static constexpr bool do_timing = TTiming::do_timing;
|
|
|
|
Timer (const std::string & name) : timernr(Init(name)) { }
|
|
|
|
template<std::enable_if_t< detail::is_tracing_type_v<TTracing>, bool> = false>
|
|
Timer( const std::string & name, TTracing ) : timernr(Init(name)) { }
|
|
|
|
template<std::enable_if_t< detail::is_timing_type_v<TTiming>, bool> = false>
|
|
Timer( const std::string & name, TTiming ) : timernr(Init(name)) { }
|
|
|
|
Timer( const std::string & name, TTracing, TTiming ) : timernr(Init(name)) { }
|
|
|
|
void SetName (const std::string & name)
|
|
{
|
|
NgProfiler::SetName (timernr, name);
|
|
}
|
|
void Start () const
|
|
{
|
|
Start(TaskManager::GetThreadId());
|
|
}
|
|
void Stop () const
|
|
{
|
|
Stop(TaskManager::GetThreadId());
|
|
}
|
|
void Start (int tid) const
|
|
{
|
|
if(tid==0)
|
|
{
|
|
if constexpr(do_timing)
|
|
NgProfiler::StartTimer (timernr);
|
|
if constexpr(do_tracing)
|
|
if(trace) trace->StartTimer(timernr);
|
|
}
|
|
else
|
|
{
|
|
if constexpr(do_timing)
|
|
NgProfiler::StartThreadTimer(timernr, tid);
|
|
if constexpr(do_tracing)
|
|
if(trace) trace->StartTask (tid, timernr, PajeTrace::Task::ID_TIMER);
|
|
}
|
|
}
|
|
void Stop (int tid) const
|
|
{
|
|
if(tid==0)
|
|
{
|
|
if constexpr(do_timing)
|
|
NgProfiler::StopTimer (timernr);
|
|
if constexpr(do_tracing)
|
|
if(trace) trace->StopTimer(timernr);
|
|
}
|
|
else
|
|
{
|
|
if constexpr(do_timing)
|
|
NgProfiler::StopThreadTimer(timernr, tid);
|
|
if constexpr(do_tracing)
|
|
if(trace) trace->StopTask (tid, timernr, PajeTrace::Task::ID_TIMER);
|
|
}
|
|
}
|
|
void AddFlops (double aflops)
|
|
{
|
|
if constexpr(do_timing)
|
|
NgProfiler::AddFlops (timernr, aflops);
|
|
}
|
|
|
|
double GetTime () { return NgProfiler::GetTime(timernr); }
|
|
long int GetCounts () { return NgProfiler::GetCounts(timernr); }
|
|
double GetMFlops ()
|
|
{ return NgProfiler::GetFlops(timernr)
|
|
/ NgProfiler::GetTime(timernr) * 1e-6; }
|
|
operator int () { return timernr; }
|
|
};
|
|
|
|
|
|
/**
|
|
Timer object.
|
|
Start / stop timer at constructor / destructor.
|
|
*/
|
|
template<typename TTimer>
|
|
class RegionTimer
|
|
{
|
|
const TTimer & timer;
|
|
int tid;
|
|
public:
|
|
/// start timer
|
|
RegionTimer (const TTimer & atimer) : timer(atimer)
|
|
{
|
|
tid = TaskManager::GetThreadId();
|
|
timer.Start(tid);
|
|
}
|
|
|
|
/// stop timer
|
|
~RegionTimer () { timer.Stop(tid); }
|
|
|
|
RegionTimer() = delete;
|
|
RegionTimer(const RegionTimer &) = delete;
|
|
RegionTimer(RegionTimer &&) = delete;
|
|
void operator=(const RegionTimer &) = delete;
|
|
void operator=(RegionTimer &&) = delete;
|
|
};
|
|
|
|
class RegionTracer
|
|
{
|
|
int nr;
|
|
int thread_id;
|
|
int type;
|
|
public:
|
|
static constexpr int ID_JOB = PajeTrace::Task::ID_JOB;
|
|
static constexpr int ID_NONE = PajeTrace::Task::ID_NONE;
|
|
static constexpr int ID_TIMER = PajeTrace::Task::ID_TIMER;
|
|
|
|
RegionTracer() = delete;
|
|
RegionTracer(RegionTracer &&) = delete;
|
|
RegionTracer(const RegionTracer &) = delete;
|
|
void operator=(const RegionTracer &) = delete;
|
|
void operator=(RegionTracer &&) = delete;
|
|
|
|
/// start trace
|
|
RegionTracer (int athread_id, int region_id, int id_type = ID_NONE, int additional_value = -1 )
|
|
: thread_id(athread_id)
|
|
{
|
|
if (trace)
|
|
trace->StartTask (athread_id, region_id, id_type, additional_value);
|
|
type = id_type;
|
|
nr = region_id;
|
|
}
|
|
/// start trace with timer
|
|
template<typename TTimer>
|
|
RegionTracer (int athread_id, TTimer & timer, int additional_value = -1 )
|
|
: thread_id(athread_id)
|
|
{
|
|
nr = timer;
|
|
type = ID_TIMER;
|
|
if (trace)
|
|
trace->StartTask (athread_id, nr, type, additional_value);
|
|
}
|
|
|
|
/// stop trace
|
|
~RegionTracer ()
|
|
{
|
|
if (trace)
|
|
trace->StopTask (thread_id, nr, type);
|
|
}
|
|
};
|
|
|
|
|
|
// Helper function for timings
|
|
// Run f() at least min_iterations times until max_time seconds elapsed
|
|
// returns minimum runtime for a call of f()
|
|
template<typename TFunc>
|
|
double RunTiming( TFunc f, double max_time = 0.5, int min_iterations = 10 )
|
|
{
|
|
// Make sure the whole test run does not exceed maxtime
|
|
double tend = WallTime()+max_time;
|
|
|
|
// warmup
|
|
f();
|
|
|
|
double tres = std::numeric_limits<double>::max();
|
|
int iteration = 0;
|
|
while(WallTime()<tend || iteration++ < min_iterations)
|
|
{
|
|
double t = -WallTime();
|
|
f();
|
|
t += WallTime();
|
|
tres = std::min(tres, t);
|
|
}
|
|
|
|
return tres;
|
|
}
|
|
|
|
} // namespace ngcore
|
|
|
|
// Helper macro to easily add multiple timers in a function for profiling
|
|
// Usage: NETGEN_TIMER_FROM_HERE("my_timer_name")
|
|
// Effect: define static Timer and RegionTimer with given name and line number
|
|
#define NETGEN_TOKEN_CONCAT(x, y) x ## y
|
|
#define NETGEN_TOKEN_CONCAT2(x, y) NETGEN_TOKEN_CONCAT(x, y)
|
|
#define NETGEN_TIMER_FROM_HERE(name) \
|
|
static Timer NETGEN_TOKEN_CONCAT2(timer_, __LINE__)( string(name)+"_"+ToString(__LINE__)); \
|
|
RegionTimer NETGEN_TOKEN_CONCAT2(rt_,__LINE__)(NETGEN_TOKEN_CONCAT2(timer_,__LINE__));
|
|
|
|
|
|
#endif // NETGEN_CORE_PROFILER_HPP
|