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109 lines
2.7 KiB
C++
109 lines
2.7 KiB
C++
#ifndef NETGEN_CORE_UTILS_HPP
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#define NETGEN_CORE_UTILS_HPP
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#include <chrono>
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#include <map>
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#include <ostream>
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#include <sstream>
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#include <string>
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#ifdef WIN32
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#include <intrin.h> // for __rdtsc() CPU time step counter
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#else
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#include <x86intrin.h> // for __rdtsc() CPU time step counter
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#endif // WIN32
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#include "ngcore_api.hpp" // for NGCORE_API
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namespace ngcore
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{
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// MPI rank, nranks TODO: Rename
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extern NGCORE_API int id, ntasks;
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NGCORE_API std::string Demangle(const char* typeinfo);
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#if defined(__GNUC__)
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inline bool likely (bool x) { return bool(__builtin_expect(long(x), 1L)); }
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inline bool unlikely (bool x) { return bool(__builtin_expect(long(x), 0L)); }
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#else
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inline bool likely (bool x) { return x; }
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inline bool unlikely (bool x) { return x; }
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#endif
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using TClock = std::chrono::system_clock;
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extern NGCORE_API const std::chrono::time_point<TClock> wall_time_start;
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// Time in seconds since program start
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inline double WallTime () noexcept
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{
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std::chrono::time_point<TClock> now = TClock::now();
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std::chrono::duration<double> elapsed_seconds = now-wall_time_start;
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return elapsed_seconds.count();
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}
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// High precision clock counter register
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using TTimePoint = size_t;
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extern NGCORE_API double ticks_per_second;
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inline TTimePoint GetTimeCounter() noexcept
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{
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return TTimePoint(__rdtsc());
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}
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template <class T>
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inline std::string ToString (const T& t)
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{
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std::stringstream ss;
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ss << t;
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return ss.str();
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}
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template<typename T1, typename T2>
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std::ostream& operator << (std::ostream& ost, const std::map<T1,T2>& map)
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{
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for(auto& val : map)
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ost << "\n" << val.first << ": " << val.second;
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return ost;
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}
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template <class T>
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NETGEN_INLINE void Swap (T & a, T & b)
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{
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T temp = std::move(a);
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a = std::move(b);
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b = std::move(temp);
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}
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template <typename T>
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class AlignedAlloc
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{
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protected:
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static void * aligned_malloc(size_t s)
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{
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// Assume 16 byte alignment of standard library
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if(alignof(T)<=16)
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return malloc(s);
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else
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return _mm_malloc(s, alignof(T));
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}
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static void aligned_free(void *p)
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{
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if(alignof(T)<=16)
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free(p);
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else
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_mm_free(p);
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}
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public:
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void * operator new (size_t s, void *p) { return p; }
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void * operator new (size_t s) { return aligned_malloc(s); }
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void * operator new[] (size_t s) { return aligned_malloc(s); }
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void operator delete (void * p) { aligned_free(p); }
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void operator delete[] (void * p) { aligned_free(p); }
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};
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} // namespace ngcore
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#endif // NETGEN_CORE_UTILS_HPP
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