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annotate SbpOperators/src/constantstenciloperator.jl @ 251:89a101a63e7a boundary_conditions

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Merge
author Jonatan Werpers <jonatan@werpers.com>
date Thu, 27 Jun 2019 14:37:21 +0200
parents 7cb4492ccd60
children 396eadb652bd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7cb4492ccd60 Refactor package SbpOperators
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1 export apply
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2
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3 abstract type ConstantStencilOperator end
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4
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5 # Apply for different regions Lower/Interior/Upper or Unknown region
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6 @inline function apply(op::ConstantStencilOperator, h::Real, v::AbstractVector, i::Index{Lower})
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7 return @inbounds h*h*apply(op.closureStencils[Int(i)], v, Int(i))
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8 end
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9
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10 @inline function apply(op::ConstantStencilOperator, h::Real, v::AbstractVector, i::Index{Interior})
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11 return @inbounds h*h*apply(op.innerStencil, v, Int(i))
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12 end
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13
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14 @inline function apply(op::ConstantStencilOperator, h::Real, v::AbstractVector, i::Index{Upper})
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15 N = length(v)
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16 return @inbounds h*h*Int(op.parity)*apply_backwards(op.closureStencils[N-Int(i)+1], v, Int(i))
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17 end
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18
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19 @inline function apply(op::ConstantStencilOperator, h::Real, v::AbstractVector, index::Index{Unknown})
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20 cSize = closureSize(op)
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21 N = length(v)
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22
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23 i = Int(index)
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24
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25 if 0 < i <= cSize
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26 return apply(op, h, v, Index{Lower}(i))
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27 elseif cSize < i <= N-cSize
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28 return apply(op, h, v, Index{Interior}(i))
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29 elseif N-cSize < i <= N
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30 return apply(op, h, v, Index{Upper}(i))
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31 else
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32 error("Bounds error") # TODO: Make this more standard
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33 end
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34 end
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35
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36 # Wrapper functions for using regular indecies without specifying regions
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37 @inline function apply(op::ConstantStencilOperator, h::Real, v::AbstractVector, i::Int)
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38 return apply(op, h, v, Index{Unknown}(i))
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39 end