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

DESCRIPTION

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.

SPECIFICATION

m[blue]OpenCL Specificationm[][1]

AUTHORS

The Khronos Group

COPYRIGHT

Copyright © 2007-2011 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or associated documentation files (the "Materials"), to deal in the Materials without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to the condition that this copyright notice and permission notice shall be included in all copies or substantial portions of the Materials.

NOTES

1.

OpenCL Specification

page 242, section 6.12.1 - Work-Item Functions