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annotate src/SbpOperators/volumeops/volume_operator.jl @ 1149:5ddf5ae48391 refactor/sbpoperators/inflation

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Merge default
author Jonatan Werpers <jonatan@werpers.com>
date Tue, 18 Oct 2022 20:27:31 +0200
parents 157a78959e5d fc57804c9bf4
children 716e721ce3eb
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1 """
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2 VolumeOperator{T,N,M,K} <: LazyTensor{T,1,1}
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3 Implements a one-dimensional constant coefficients volume operator
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4 """
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5 struct VolumeOperator{T,N,M,K} <: LazyTensor{T,1,1}
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6 inner_stencil::Stencil{T,N}
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7 closure_stencils::NTuple{M,Stencil{T,K}}
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8 size::NTuple{1,Int}
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9 parity::Parity
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10 end
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12 function VolumeOperator(grid::EquidistantGrid{1}, inner_stencil, closure_stencils, parity)
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13 return VolumeOperator(inner_stencil, Tuple(closure_stencils), size(grid), parity)
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14 end
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16 closure_size(::VolumeOperator{T,N,M}) where {T,N,M} = M
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18 LazyTensors.range_size(op::VolumeOperator) = op.size
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19 LazyTensors.domain_size(op::VolumeOperator) = op.size
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20
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21 function LazyTensors.apply(op::VolumeOperator, v::AbstractVector, i::Index{Lower})
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22 return @inbounds apply_stencil(op.closure_stencils[Int(i)], v, Int(i))
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23 end
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25 function LazyTensors.apply(op::VolumeOperator, v::AbstractVector, i::Index{Interior})
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26 return apply_stencil(op.inner_stencil, v, Int(i))
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27 end
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29 function LazyTensors.apply(op::VolumeOperator, v::AbstractVector, i::Index{Upper})
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30 return @inbounds Int(op.parity)*apply_stencil_backwards(op.closure_stencils[op.size[1]-Int(i)+1], v, Int(i))
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31 end
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32
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33 function LazyTensors.apply(op::VolumeOperator, v::AbstractVector, i)
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34 r = getregion(i, closure_size(op), op.size[1])
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35 return LazyTensors.apply(op, v, Index(i, r))
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36 end
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37 # TODO: Move this to LazyTensors when we have the region communication down.