OpenCL™ Developer Guide for Intel® Core™ and Intel® Xeon® Processors
Visible to Intel only — GUID: GUID-8E374EFB-0B2B-4040-8F3B-8EE080C3B2B6
Visible to Intel only — GUID: GUID-8E374EFB-0B2B-4040-8F3B-8EE080C3B2B6
About This Document
This guide describes the optimization guidelines of OpenCL™ applications targeting the Intel® Core™ and Intel® Xeon® Processors. In case your application targets Intel® processors with Intel® Graphics, refer to the correspondingOpenCL™ Developer Guide for Intel® Processor Graphics.
This guide describes three basic factors most influence performance on the multi-socket systems:
- Threading scalability. Multi-socket Intel Xeon systems combine many Intel® CPU cores, thus utilizing thread parallelism is critical to achieving good performance.
- Vectorization. Intel Xeon processors support wide vector registers and associated SIMD operations.
- Memory bandwidth utilization.
This guide explains, which sections of code consume most compute cycles, and provides optimization best-known methods.
For better understanding of the optimizations described in this guide, you must be familiar with the following concepts:
- The OpenCL standard
- Threading and Single Instruction Multiple Data (SIMD) vector instruction sets
See Also
OpenCL™ 1.2 Specification at https://www.khronos.org/registry/OpenCL/specs/opencl-1.2.pdf
Overview Presentations of the OpenCL™ Standard at http://www.khronos.org/registry/OpenCL