Accelerate Performance Using OpenCL with Intel HD Graphics

[JeGX]

Recently, Intel announced the release of the Intel® SDK for OpenCL Applications 2013 with certified OpenCL* 1.2 support on 3rd and 4th generation Intel® Core™ processors with Intel® Iris Graphics and Intel® HD Graphics family. Visual computing applications like content creation, home movies, music, and personal images will benefit from the value of OpenCL general purpose programmability combined with access to the combined power of the CPU and the hardware acceleration capabilities of Intel® Iris Graphics and Intel® HD Graphics to increase performance and improve battery life.

In fact, with the launch of the 3rd generation Intel® Core™ processors, Intel has made it possible for software developers to heterogeneously program both CPU and Intel HD Graphics through the OpenCL* framework.

This article documents lessons learned while accelerating video processing with OpenCL* on the 3rd generation Intel® Core™ processors. Common video effects in a commercial application were optimized with OpenCL, and then evaluated on Intel® HD Graphics 4000. Using OpenCL, key video effects were sped up by as much as 2.3x, and with further tuning for Intel® HD Graphics 4000, additional performance gains of up to 4.3x were achieved.

Many of the lessons learned and documented in this article are also applicable to the new versions of Intel® Iris Graphics and Intel® HD Graphics family.

http://software.intel.com/en-us/articles/accelerate-performance-using-opencl-with-intel-hd-graphics