User Guide


Computing Threads Started

Metric Description

Number of threads started across all EUs for compute work.

Possible Issues

High thread issue rate lowers GPU usage efficiency due to thread creation overhead even for lightweight GPU threads. To improve performance, change the kernel code to increase the load in a working item, adjust global working size, and so decrease the number of GPU threads.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804