forked from lijiext/lammps
36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
/* ----------------------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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Original Version:
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http://lammps.sandia.gov, Sandia National Laboratories
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Steve Plimpton, sjplimp@sandia.gov
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See the README file in the top-level LAMMPS directory.
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-----------------------------------------------------------------------
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USER-CUDA Package and associated modifications:
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https://sourceforge.net/projects/lammpscuda/
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Christian Trott, christian.trott@tu-ilmenau.de
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Lars Winterfeld, lars.winterfeld@tu-ilmenau.de
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Theoretical Physics II, University of Technology Ilmenau, Germany
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See the README file in the USER-CUDA directory.
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This software is distributed under the GNU General Public License.
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------------------------------------------------------------------------- */
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__global__ void Cuda_FixViscousCuda_PostForce_Kernel(int groupbit, F_FLOAT* gamma)
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{
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int i = (blockIdx.x * gridDim.y + blockIdx.y) * blockDim.x + threadIdx.x;
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if(i < _nlocal)
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if(_mask[i] & groupbit) {
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F_FLOAT drag = gamma[_type[i]];
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_f[i] -= drag * _v[i];
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_f[i + 1 * _nmax] -= drag * _v[i + 1 * _nmax];
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_f[i + 2 * _nmax] -= drag * _v[i + 2 * _nmax];
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}
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}
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