KokkosCorehpp

KokkosCorehpp is a C++ header file that appears in the Kokkos library, specifically within the core module. It functions as a central include aimed at bringing in the foundational elements needed to write Kokkos-enabled code. The exact contents may vary by release, but the header is generally designed to provide convenient access to the most commonly used Kokkos abstractions.

The header typically covers core abstractions such as execution spaces, memory spaces, and views, along with associated utilities, type definitions, and configuration options. It may also declare or expose macros and version information that help manage build configurations and feature flags across different backends. Because Kokkos supports multiple backends—such as CUDA, HIP, OpenMP, and Serial—the KokkosCorehpp file helps ensure a consistent interface for host and device code by consolidating essential declarations in one include.

Usage and purpose: developers commonly include KokkosCorehpp when they need access to the core Kokkos facilities without pulling in a larger portion of the API. It is especially useful for low-level library components or performance-sensitive applications that prefer a single, compact include to initialize and configure core Kokkos behavior.

Relation to the broader project: KokkosCorehpp is part of the core module that underpins portability and performance across architectures. While it serves as a convenient aggregator, users may still include more specific headers when their code requires specialized functionality beyond the core set.

See also: Kokkos, Kokkos_Core.hpp, Kokkos_View, Kokkos_ExecutionSpace.