Khronos Releases Significant OpenCL 1.2 Specification Update

  Khronos Releases Significant OpenCL 1.2 Specification Update

  New OpenCL extensions expand functionality for key use cases, including a
   robust platform for heterogeneous parallel computation in a web browser;

           Find out more about OpenCL at SIGGRAPH Asia in Singapore


Business Wire

SINGAPORE -- November 30, 2012

SIGGRAPH Asia 2012 – The Khronos™ Group today announced the ratification and
public release of an update to the OpenCL™ 1.2 specification, the open,
royalty-free standard for cross-platform, parallel programming of modern
processors. This backwards compatible version updates the core OpenCL 1.2
specification with bug fixes and clarifications and defines additional
optional extensions for enhanced performance, functionality and robustness for
parallel programming on a wide variety of platforms. Optional extensions are
not required to be supported by a conformant OpenCL implementation, but are
expected to be widely available; they define functionality that is likely to
move into the required feature set in a future revision of the OpenCL
specification. The updated OpenCL 1.2 specifications, together with online
reference pages and reference cards, are available at

“The OpenCL working group continues to listen closely to the demands of the
developer community, and this update provides a timely increase in
functionality and reliability of code ported across vendor implementations,”
said Neil Trevett, chair of the OpenCL working group, president of the Khronos
Group and vice president of mobile content at NVIDIA. “The new extensions
enable early access to functionality for key use cases, including security
capabilities for implementations of WebCL that enable access to OpenCL within
a browser.”

The new OpenCL 1.2 extensions provide enhanced parallel programming
flexibility, functionality and performance through updates and additions,

- enabling an OpenCL image to be created from a OpenGL multi-sampled texture
that is designed for multi-sampled anti-aliasing using color or depth,
providing more flexibility in interoperating 3D graphics and compute;

- creating 2D images from an OpenCL buffer to enable flexibility in which
memory structures are processed using the advanced properties of OpenCL

- providing security features for WebCL implementations layered over OpenCL,
including: the ability to initialize local and private memory before a kernel
begins execution, and a new query and API to terminate an OpenCL context to
ensure a long running kernel does not affect system stability;

- loading an OpenCL program object from a Standard Portable Intermediate
Representation (SPIR) instance. SPIR is a vendor neutral non-source
representation for OpenCL C programs that enables increased tool chain
flexibility and avoids the need to ship kernel source in commercial

“ARM sees GPU Compute functionality as a fundamental enabler for enhanced user
experiences and increased energy efficiency in mobile and consumer devices.
OpenCL is a key standard for turning these goals into reality,” said Jem
Davies, ARM fellow and vice president of technology, media processing
division, ARM. “We look forward to expanding our current Full Profile OpenCL
1.1 support and to including OpenCL 1.2 as part of the ARM Mali-T600 GPU

“Intel is pleased by the improved portability and interoperability delivered
by the OpenCL 1.2 specification update,” said Bill Savage, vice president and
general manager of the Developer Products Division of Intel’s Software and
Services Group. “These improvements should foster developer innovation and are
important steps in the evolution of the OpenCL feature set.”

“We continue to see growing interest from our customers and partners in using
OpenCL to deliver high performance compute from our GPUs. Imagination’s
PowerVR Series6 architecture is optimized for OpenCL, so we are delighted to
see this latest update to the specification, which brings improved
functionality in key application areas such as image processing to GPU
Compute,” says Tony King-Smith, Vice-President, marketing, for imagination
Technologies. “We remain convinced that OpenCL will be a ‘cornerstone’ API for
parallel and heterogeneous processing in the years ahead.”

“Vivante is pleased to be one of the leading mobile IP promoters and
contributors of OpenCL 1.2. With strong industry support and a robust
ecosystem built around compute, OpenCL 1.2 strengthens the foundation and
building blocks to enable broad adoption of the compute API across all market
segments,” said Wei-Jin Dai, President and CEO of Vivante. “As the technology
goes mainstream, our goal is to make sure consumers using Vivante products get
the perfect balance of performance, features, programmability, and extreme low

Khronos at SIGGRAPH Asia 2012

Find out more about Open CL at the Khronos hosted “DevU for Educators” - a
full day seminar at SIGGRAPH Asia to brief educators on the latest Khronos
APIs, and for educators to engage with Khronos members on how academia and
industry can work together to create consistently effective courses and
examinations on these important industry standards. The DevU for Educators
session will be held on December 1, 2012, in Conference Hall K of Singapore
Expo from 10AM to 6PM – all SIGGRAPH Asia attendees are welcome to attend.
More information:

About The Khronos Group

The Khronos Group is an industry consortium creating open standards to enable
the authoring and acceleration of parallel computing, graphics and dynamic
media on a wide variety of platforms and devices. Khronos standards include
OpenGL^®, OpenGL^® ES, WebGL™, WebCL™, OpenCL™, OpenVX™, OpenMAX™, OpenVG™,
OpenSL ES™, OpenVX™, StreamInput™ and COLLADA™. All Khronos members are able
to contribute to the development of Khronos specifications, are empowered to
vote at various stages before public deployment, and are able to accelerate
the delivery of their cutting-edge media platforms and applications through
early access to specification drafts and conformance tests. More information
is available at

Khronos, StreamInput, WebGL, WebCL, COLLADA, OpenKODE, OpenVG, OpenVX, OpenSL
ES and OpenMAX are trademarks of the Khronos Group Inc. ASTC is a trademark of
ARM Holdings PLC, OpenCL is a trademark of Apple Inc. and OpenGL is a
registered trademark and the OpenGL ES and OpenGL SC logos are trademarks of
Silicon Graphics International used under license by Khronos. All other
product names, trademarks, and/or company names are used solely for
identification and belong to their respective owners.


Khronos Group Inc.
Neil Trevett, OpenCL Chair, +1 408-464-7053
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