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Data Product Suite

Data Product Suite. Problem: Design, Implementation, and Assimilation of new data products is expensive. Constraints: Efficiency 15K+ daily images, 1GB+ data files Maintainability changing grids: quad cells changing file formats: removed null values

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Data Product Suite

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  1. Data Product Suite • Problem: • Design, Implementation, and Assimilation of new data products is expensive. • Constraints: • Efficiency • 15K+ daily images, 1GB+ data files • Maintainability • changing grids: quad cells • changing file formats: removed null values • changing resource constraints: new machines Algebraic Optimization Data Independence

  2. Data Independence We want: • Different algorithms, each dependent on data characteristics. • Changes to data characteristics mean changes to recipe • Logical equivalences are obscured… vtkExtractGeometry vtkThreshold vtkExtractGrid vtkExtractVOI vtkThresholdPoints VTK:

  3. cross restrict cross restrict Exposing Equivalences for Algebraic Optimization result(A) A: • result(B) = result(A), but cost(B) < cost(A) • Implies ‘Cross’ and ‘Restrict’ should be commutative • Difficult to determine which library routines, if any, have this property (“Documentational Semantics”) result(B) B:

  4. 3D Data Products F G H(x,y,b)  r(z>b) r(region) b(s) V(z) F r(x,y) H(x,y,b)  r(z>b) b(s) r(z) V(z)

  5. Horizontal Slice F H H(x,y,b)  r(z>b) slice b(s) V(z) r(z>b) b(s) apply H(x,y,b) <depth>

  6. Vertical Slice F H(x,y,b)  r(z>b) search b(s) V(z)  P  V P P P  V

  7. Vertical Slice H(x,y,b) search  b(s) first P V(z) H(x,y,b) search  b(s) interp P V(z) r(x,y) H(x,y,b)  r(z>b) b(s) interp r(z) V(z) search  P V(z)

  8. Plume Volume F H(x,y,b)  r(region) r(z>b) b(s) V(z) r(salt<26) area merge sum H(x,y,b)  r(ocean) apply(*) length Time dependent V(z)

  9. Another Optimization A=B r(salt<26) A merge C r(ocean) B A merge r(salt<26) r(ocean) C B A merge r(salt<26) C r(ocean) B B’

  10. Software APIs API

  11. Data Independence We want: Custom: makeSmallGrid() vtkExtractGeometry vtkExtractStructuredGrid vtkExtractThreshold vtkExtractGrid vtkExtractVOI vtkThresholdPoints0 VTK:

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