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What are Spiner and Ports-of-Call? What are they good for?

Spiner is a performance portable library for accessing and interpolating on tabulated data. Spiner is based on a few important design decisions:

• Interpolation methods are intrinsically tied to the data layout and structure on which the interpolation is performed. Therefore, a data file should contain information about how to interpolate. Spiner couples interpolation methods to data on disk and in memory.
• One size does not fit all---Interpolation methods should be extensible.
• It's not enough to run on CPUs. Interpolation will be required on GPUs and unknown emerging architectures.
• Performance matters.
• The burden on a host code that includes Spiner should be minimal. As few a dependencies as possible, with as little additional complexity in the build system as possible.

Spiner is the interpolation tool. Ports-of-Call is a sub-tool within spiner that helps enable the portability aspect.