namespace dnnl::graph::ocl

Intel® oneAPI Deep Neural Network Developer Guide and Reference

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ID 768875

Date 9/17/2024

Version

Public

Visible to Intel only — GUID: GUID-8EAAF3B5-E23A-45D4-BCC7-85F27EC7CA03

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namespace dnnl::graph::ocl_interop

Overview

OpenCL interoperability namespace. More…

namespace ocl_interop {

// global functions

allocator make_allocator(
    dnnl_graph_ocl_allocate_f ocl_malloc,
    dnnl_graph_ocl_deallocate_f ocl_free
    );

engine make_engine_with_allocator(
    cl_device_id device,
    cl_context context,
    const allocator& alloc
    );

engine make_engine_with_allocator(
    cl_device_id device,
    cl_context context,
    const allocator& alloc,
    const std::vector<uint8_t>& cache_blob
    );

cl_event execute(
    compiled_partition& c_partition,
    stream& astream,
    const std::vector<tensor>& inputs,
    std::vector<tensor>& outputs,
    const std::vector<cl_event>& deps = {}
    );

} // namespace ocl_interop

Detailed Documentation

OpenCL interoperability namespace.

Global Functions

allocator make_allocator(
    dnnl_graph_ocl_allocate_f ocl_malloc,
    dnnl_graph_ocl_deallocate_f ocl_free
    )

Constructs an allocator from OpenCL malloc and free function pointer.

OpenCL allocator should be used for OpenCL GPU runtime. Currently, only device USM allocator is supported.

Parameters:

ocl_malloc	The pointer to OpenCL malloc function
ocl_free	The pointer to OpenCL free function

Returns:

Created allocator

engine make_engine_with_allocator(
    cl_device_id device,
    cl_context context,
    const allocator& alloc
    )

Constructs an engine from an OpenCL device, an OpenCL context, and an allocator.

Parameters:

device	A valid OpenCL device to construct the engine
context	A valid OpenCL context to construct the engine
alloc	An allocator to associate with the engine

Returns:

Created engine

engine make_engine_with_allocator(
    cl_device_id device,
    cl_context context,
    const allocator& alloc,
    const std::vector<uint8_t>& cache_blob
    )

Constructs an engine from an OpenCL device, an OpenCL context, an allocator, and a serialized engine cache blob.

Parameters:

device	A valid OpenCL device to construct the engine
context	A valid OpenCL context to construct the engine
alloc	An allocator to associate with the engine
cache_blob	Cache blob serialized beforehand

Returns:

Created engine

cl_event execute(
    compiled_partition& c_partition,
    stream& astream,
    const std::vector<tensor>& inputs,
    std::vector<tensor>& outputs,
    const std::vector<cl_event>& deps = {}
    )

Executes a compiled partition in a specified stream and returns a OpenCL event.

Parameters:

c_partition	Compiled partition to execute.
astream	Stream object to run over
inputs	Arguments map.
outputs	Arguments map.
deps	Optional vector with `cl_event` dependencies.

Returns:

Output event.

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Intel® oneAPI Deep Neural Network Developer Guide and Reference

namespace dnnl::graph::ocl_interop

Overview

Detailed Documentation