FunC

FunC (Function Comparator) is a C++ tool for quickly profiling the performance of various different abstracted implementations of mathematical function evaluations for given:

• computing environment
• mathematical function
• evaluation tolerance

Currently, only uniform LUTs (interpolation, Taylor, and Hermite) and direct evaluations are supported.

Requirements

• C++11 compliant compiler
• Boost (tested with 1.58-1.65)
• quadmath (for tolerance-based table generation capabilities)

Build:

• CMake version >= 3.1

mkdir build && cd build/
cmake -DCMAKE_INSTALL_PREFIX=<install-dir>  ..
make install

After make install, linking to the library (outside of cmake build) requires:

• <install-dir>/lib is in your LD_LIBRARY_PATH environment variable,
• <install-dir>/include/func is in your include flags, and
• -lfunc -lfunc_impls are in your link flags

Notes

This tool is split up into two separate libraries:

• func_impls provides the implementation types used in the library (does not require quadmath to build/use)
• func combines the implementation types with
  • UniformLookupTableGenerator for generating LUTs according to various criteria (requires quadmath)
  • ImplementationComparator for comparing the performance of various implementations

References

TODO reference to SISC paper

Copyright

TODO decide on copyright