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Fuxianjun
Journeyman III
‎08-23-2010 01:09 AM

How to specify work-group-size when run program on CPU ?

I know my GPU's frontwave size is 64 and work_group_size would be multiple of 64. But if I want to calculate on CPU, how to specify the work_group_size, thanks for reading and reply !

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3 Replies
Fuxianjun
Journeyman III
‎08-23-2010 01:14 AM

By the way, can barrier() function work in CPU program? If not ,how to make threads synchronization ?

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genaganna
In response to Fuxianjun
Journeyman III
‎08-23-2010 02:32 AM

Originally posted by: Fuxianjun By the way, can barrier() function work in CPU program? If not ,how to make threads synchronization ?

 

Yes barrier() works on CPU.

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genaganna
Journeyman III
‎08-23-2010 02:48 AM

Originally posted by: Fuxianjun I know my GPU's frontwave size is 64 and work_group_size would be multiple of 64. But if I want to calculate on CPU, how to specify the work_group_size, thanks for reading and reply !

 

In case of CPU,  wavefront or Warp is 1.  I hope this clears.

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