Work-Item_Built-In_Functions(3) Click an item in the table below for details about that function.

get_work_dim(3clc) Number of dimensions in use
get_global_size(3clc) Number of global work items
get_global_id(3clc) Global work item ID value
get_local_size(3clc) Number of local work items
get_local_id(3clc) Local work item ID
get_num_groups(3clc) Number of work groups
get_group_id(3clc) Work group ID
get_global_offset(3clc) Work offset


Built-in work-item functions can be used to query the number of dimensions, the global and local work size specified to clEnqueueNDRangeKernel(3clc), and the global and local identifier of each work-item when this kernel is being executed on a device. The number of dimensions, the global and local work size when executing a kernel using the function clEnqueueTask(3clc) is one.


m[blue]OpenCL Specificationm[][1]


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OpenCL Specification
page 242, section 6.12.1 - Work-Item Functions