6a99f5b5c5
- no auto-download of user-pace src yet - lib/pace/*.cpp,*.h are provided explicitly yet. - implement CMake integration in USER-PACE.cmake and in CMakeLists.txt
127 lines
3.4 KiB
C++
127 lines
3.4 KiB
C++
/*
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* Performant implementation of atomic cluster expansion and interface to LAMMPS
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*
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* Copyright 2021 (c) Yury Lysogorskiy^1, Cas van der Oord^2, Anton Bochkarev^1,
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* Sarath Menon^1, Matteo Rinaldi^1, Thomas Hammerschmidt^1, Matous Mrovec^1,
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* Aidan Thompson^3, Gabor Csanyi^2, Christoph Ortner^4, Ralf Drautz^1
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*
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* ^1: Ruhr-University Bochum, Bochum, Germany
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* ^2: University of Cambridge, Cambridge, United Kingdom
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* ^3: Sandia National Laboratories, Albuquerque, New Mexico, USA
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* ^4: University of British Columbia, Vancouver, BC, Canada
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*
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*
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* See the LICENSE file.
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* This FILENAME is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Created by Yury Lysogorskiy on 19.02.20.
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#ifndef ACE_TIMING_H
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#define ACE_TIMING_H
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#include <chrono>
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using namespace std::chrono;
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using Clock = std::chrono::high_resolution_clock;
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using TimePoint = std::chrono::time_point<Clock>;
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using Duration = Clock::duration;
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//////////////////////////////////////////
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#ifdef FINE_TIMING
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/**
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* Helper class for timing the code.
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* The timer should be initialized to reset measured time and
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* then call "start" and "stop" before and after measured code.
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* The measured time is stored in "duration" variable
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*/
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struct ACETimer {
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Duration duration; ///< measured duration
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TimePoint start_moment; ///< start moment of current measurement
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ACETimer() { init(); };
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/**
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* Reset timer
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*/
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void init() { duration = std::chrono::nanoseconds(0); }
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/**
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* Start timer
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*/
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void start() { start_moment = Clock::now(); }
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/**
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* Stop timer, update measured "duration"
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*/
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void stop() { duration += Clock::now() - start_moment; }
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/**
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* Get duration in microseconds
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*/
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long as_microseconds() { return std::chrono::duration_cast<std::chrono::microseconds>(duration).count(); }
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/**
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* Get duration in nanoseconds
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*/
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long as_nanoseconds() { return std::chrono::duration_cast<std::chrono::nanoseconds>(duration).count(); }
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};
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#else // EMPTY Definitions
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/**
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* Helper class for timing the code.
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* The timer should be initialized to reset measured time and
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* then call "start" and "stop" before and after measured code.
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* The measured time is stored in "duration" variable
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*/
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struct ACETimer {
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Duration duration; ///< measured duration
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TimePoint start_moment; ///< start moment of current measurement
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ACETimer() {};
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/**
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* Reset timer
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*/
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void init() {}
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/**
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* Start timer
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*/
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void start() {}
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/**
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* Stop timer, update measured "duration"
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*/
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void stop() {}
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/**
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* Get duration in microseconds
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*/
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long as_microseconds() {return 0; }
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/**
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* Get duration in nanoseconds
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*/
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long as_nanoseconds() {return 0; }
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};
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#endif
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//////////////////////////////////////////
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#endif //ACE_TIMING_H
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