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annotate SbpOperators/src/d2.jl @ 249:7cb4492ccd60 boundary_conditions

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Refactor package SbpOperators
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Thu, 27 Jun 2019 14:18:48 +0200
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children 396eadb652bd
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249
7cb4492ccd60 Refactor package SbpOperators
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1 export D2, closureSize, readOperator, apply_e, apply_d, apply_e_T, apply_d_T
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2
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3 @enum Parity begin
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4 odd = -1
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5 even = 1
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6 end
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7
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8 struct D2{T,N,M,K} <: ConstantStencilOperator
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9 quadratureClosure::NTuple{M,T}
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10 innerStencil::Stencil{T,N}
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11 closureStencils::NTuple{M,Stencil{T,K}}
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12 eClosure::Stencil{T,M}
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13 dClosure::Stencil{T,M}
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14 parity::Parity
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15 end
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16
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17 function closureSize(D::D2)::Int
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18 return length(D.quadratureClosure)
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19 end
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20
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21 function apply_e_T(op::D2, v::AbstractVector, ::Type{Lower})
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22 @boundscheck if length(v) < closureSize(op)
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23 throw(BoundsError())
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24 end
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25 apply(op.eClosure,v,1)
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26 end
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27
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28 function apply_e_T(op::D2, v::AbstractVector, ::Type{Upper})
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29 @boundscheck if length(v) < closureSize(op)
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30 throw(BoundsError())
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31 end
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32 apply(flip(op.eClosure),v,length(v))
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33 end
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34
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35
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36 function apply_e(op::D2, v::Number, N::Integer, i::Integer, ::Type{Lower})
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37 @boundscheck if !(0<length(i) <= N)
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38 throw(BoundsError())
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39 end
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40 op.eClosure[i-1]*v
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41 end
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42
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43 function apply_e(op::D2, v::Number, N::Integer, i::Integer, ::Type{Upper})
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44 @boundscheck if !(0<length(i) <= N)
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45 throw(BoundsError())
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46 end
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47 op.eClosure[N-i]*v
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48 end
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49
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50 function apply_d_T(op::D2, h_inv::Real, v::AbstractVector, ::Type{Lower})
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51 @boundscheck if length(v) < closureSize(op)
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52 throw(BoundsError())
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53 end
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54 h_inv*apply(op.dClosure,v,1)
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55 end
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56
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57 function apply_d_T(op::D2, h_inv::Real, v::AbstractVector, ::Type{Upper})
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58 @boundscheck if length(v) < closureSize(op)
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59 throw(BoundsError())
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60 end
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61 -h_inv*apply(flip(op.dClosure),v,length(v))
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62 end
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63
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64 function apply_d(op::D2, h_inv::Real, v::Number, N::Integer, i::Integer, ::Type{Lower})
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65 @boundscheck if !(0<length(i) <= N)
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66 throw(BoundsError())
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67 end
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68 h_inv*op.dClosure[i-1]*v
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69 end
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70
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71 function apply_d(op::D2, h_inv::Real, v::Number, N::Integer, i::Integer, ::Type{Upper})
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72 @boundscheck if !(0<length(i) <= N)
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73 throw(BoundsError())
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74 end
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75 -h_inv*op.dClosure[N-i]*v
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76 end