get_global_linear_id

Description

Returns the work-items 1-dimensional global ID. For 1D work-groups, it is computed as get_global_id(0) – get_global_offset(0).

For 2D work-groups, it is computed as (get_global_id(1) - get_global_offset(1)) * get_global_size(0) + (get_global_id(0) - get_global_offset(0)).

For 3D work-groups, it is computed as ((get_global_id(2) – get_global_offset(2)) * get_global_size(1) * get_global_size(0)) + ((get_global_id(1) – get_global_offset(1)) * get_global_size(0)) + (get_global_id(0) – get_global_offset(0)).

Specification

OpenCL Specification

Also see

Work-Item Functions, get_global_id, get_global_size

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