math-bytecode is a C++17 library that uses ParseGen to implement a compiler for a subset of the C language.
The language that math-bytecode supports is basically the body of a C function, allowing only variables of
type double and operations on them.
The body of the function is provided as a C++ std::string and is then compiled into bytecode stored in
an object of type math_bytecode::compiled_function.
The bytecode can then be executed by an object of type math_bytecode::executable_function
as if it were a regular C++ function call.
The executable function object is designed to be used in the interior of "hot loops" inside
physics simulation codes, and math-bytecode is an ideal way to accept arbitrary mathematical
functions from users for things like initial and boundary conditions.
math-bytecode uses P3A to be portably performant across HPC hardware like Intel CPUs,
NVIDIA GPUs, and AMD GPUs.
At Sandia, Math Bytecode is SCR# 2689.0