OpenCL Memory Model

The OpenCL™ API defines the memory model to be used by all applications that comply with the standard. This hierarchical representation of memory is common across all vendors and can be applied to any OpenCL application. The vendor is responsible for defining how the OpenCL memory model maps to specific hardware. The OpenCL memory model is shown overlaid onto the OpenCL device model in the following figure.

Figure: OpenCL Memory Model

The memory hierarchy defined in the OpenCL specification has the following levels: