2 Highly Optimized Object-oriented Many-particle Dynamics -- Blue Edition
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50 // Maintainer: joaander
52 /*! \file TwoStepBDNVTGPU.cuh
53 \brief Declares GPU kernel code for BDNVT integration on the GPU. Used by TwoStepBDNVTGPU.
56 #include "ParticleData.cuh"
57 #include "HOOMDMath.h"
59 #ifndef __TWO_STEP_BDNVT_GPU_CUH__
60 #define __TWO_STEP_BDNVT_GPU_CUH__
62 //! Temporary holder struct to limit the number of arguments passed to gpu_bdnvt_step_two()
63 struct bdnvt_step_two_args
65 Scalar *d_gamma; //!< Device array listing per-type gammas
66 unsigned int n_types; //!< Number of types in \a d_gamma
67 bool gamma_diam; //!< Set to true to use diameters as gammas
68 Scalar T; //!< Current temperature
69 unsigned int timestep; //!< Current timestep
70 unsigned int seed; //!< User chosen random number seed
71 Scalar *d_sum_bdenergy; //!< Energy transfer sum from bd thermal reservoir
72 Scalar *d_partial_sum_bdenergy; //!< Array used for summation
73 unsigned int block_size; //!< Block size
74 unsigned int num_blocks; //!< Number of blocks
75 bool tally; //!< Set to true is bd thermal reservoir energy tally is to be performed
78 //! Kernel driver for the second part of the BDNVT update called by TwoStepBDNVTGPU
79 cudaError_t gpu_bdnvt_step_two(const Scalar4 *d_pos,
82 const Scalar *d_diameter,
83 const unsigned int *d_tag,
84 unsigned int *d_group_members,
85 unsigned int group_size,
87 const bdnvt_step_two_args& bdnvt_args,
93 #endif //__TWO_STEP_BDNVT_GPU_CUH__