Using HIP runtime API

The HIP runtime API provides C and C++ functionalities to manage event, stream, and memory on GPUs. The HIP runtime uses Compute Language Runtime (CLR).

CLR contains source code for AMD ROCm’s compute language runtimes: HIP and OpenCL™. CLR includes the HIP implementation on the AMD ROCm platform: hipamd and the ROCm Compute Language Runtime (rocclr). rocclr is a virtual device interface that enables the HIP runtime to interact with different backends, such as ROCr on Linux or PAL on Microsoft Windows. CLR also includes the OpenCL runtime implementation.

The HIP runtime API backends are summarized in the following figure:

Here are the various HIP Runtime API high level functions:

• Initialization

• Memory management

• Error handling

• Asynchronous concurrent execution

• Cooperative groups

• HIP graphs

• Call stack

• Multi-device management

• OpenGL interoperability

• External resource interoperability