An HPVM program is a combination of host code and one or more data flow graphs (DFG) at the IR level. We provide C function declarations representing the HPVM intrinsics that allow creating, querying, and interacting with the DFGs. More details about the HPVM IR intrinsics can be found in [the HPVM IR Specification.](#hpmv-specification.md).
An HPVM-C program contains both the host and the DFG code. Each HPVM kernel, represented by a leaf node in the DFG, can be compiled to multiple different targets (e.g. CPU and GPU) as described below.
This document describes all the API calls that can be used in an HPVM-C program.
