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https://github.com/NVIDIA/cuda-samples.git
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80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
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/* Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __BODYSYSTEMCPU_H__
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#define __BODYSYSTEMCPU_H__
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#include "bodysystem.h"
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// CPU Body System
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template <typename T>
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class BodySystemCPU : public BodySystem<T> {
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public:
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BodySystemCPU(int numBodies);
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virtual ~BodySystemCPU();
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virtual void loadTipsyFile(const std::string &filename);
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virtual void update(T deltaTime);
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virtual void setSoftening(T softening) {
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m_softeningSquared = softening * softening;
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}
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virtual void setDamping(T damping) { m_damping = damping; }
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virtual T *getArray(BodyArray array);
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virtual void setArray(BodyArray array, const T *data);
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virtual unsigned int getCurrentReadBuffer() const { return 0; }
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virtual unsigned int getNumBodies() const { return m_numBodies; }
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protected: // methods
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BodySystemCPU() {} // default constructor
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virtual void _initialize(int numBodies);
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virtual void _finalize();
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void _computeNBodyGravitation();
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void _integrateNBodySystem(T deltaTime);
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protected: // data
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int m_numBodies;
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bool m_bInitialized;
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T *m_pos;
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T *m_vel;
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T *m_force;
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T m_softeningSquared;
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T m_damping;
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};
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#include "bodysystemcpu_impl.h"
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#endif // __BODYSYSTEMCPU_H__
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