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Topic Title: Thread group in cal V.S. work group in OpenCl
Topic Summary:
Created On: 11/03/2009 04:57 AM
Status: Post and Reply

Linear : Threading : Single : Branch

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11/03/2009 04:57 AM
rexiaoyu Posts: 27 Joined: 08/04/2009	In CAL, we organize the threads into a thread group in linear manner. In OpenCL, the threads can be organized in tiled manner. I am wondering how to map the tiled to the linear.
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11/03/2009 01:12 PM
MicahVillmow Posts: 525 Joined: 02/05/2008	It is not that the threads in OpenCL are tiled, but blocked linear. ------------------------- Micah Villmow Advanced Micro Devices Inc. -------------------------------- The information presented in this document is for informational purposes only and may contain technical inaccuracies, omissions and typographical errors. Links to third party sites are for convenience only, and no endorsement is implied.
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11/03/2009 10:32 PM
rexiaoyu Posts: 27 Joined: 08/04/2009	Originally posted by: MicahVillmow It is not that the threads in OpenCL are tiled, but blocked linear. What is the difference between linear and blocked linear? How to map the blocked linear to the cal's linear? Can you explain it more clearly? Thank you.
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11/04/2009 01:23 PM
MicahVillmow Posts: 525 Joined: 02/05/2008	rexiaoyu, Linear is sequential along a single line, blocked linear is sequential within a block and each block is sequential. In tiled mode it usually follows a hierarchical Z pattern. ------------------------- Micah Villmow Advanced Micro Devices Inc. -------------------------------- The information presented in this document is for informational purposes only and may contain technical inaccuracies, omissions and typographical errors. Links to third party sites are for convenience only, and no endorsement is implied.
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AMD Developer Forums » Software Development Topics » OpenCL™ » Thread group in cal V.S. work group in OpenCl

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