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New Contributor I
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Question on the new features of OpenCLSDK v20.1

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Hi, I have recently noticed that in SDK v20.1 it is that the following new feature is available:

 

"Enabled stall enable clusters pragma to reduce local memory usage by removing FIFO instantiations and latency between functions."

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however, I could not find corresponding instructions in the manual.

 

Has anyone tried this new feature yet ? What pragma should I use ?

 

Thx

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Employee
49 Views

Hi,

 

It seems like there is a documentation problem as there is no information for this feature. I had reported to developer to check on this problem.

 

You could able to apply this feature by using __attribute__((stall_enable)) to a kernel, then the compiler should only create stall-enable clusters in that kernel.

 

Thanks

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Employee
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Hi, 

 

I had checked the document on the "stall_enable" fucntion and I am not able to find the information for this function.

I am checking the information internally "Enabled stall enable clusters pragma to reduce local memory usage by removing FIFO instantiations and latency between functions". 

 

For your information, I am able to find information with HLS reference manual guide in page 148: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/hls/mnl-hls-reference.pd...

by using the syntax "hls_use_stall_enable_clusters"

 

Thanks

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New Contributor I
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Hi, thanks for the quick reply.

 

How do I enable this feature in OpenCL kernel code rather than HLS ? which pragma should I use ?

 

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Highlighted
Employee
50 Views

Hi,

 

It seems like there is a documentation problem as there is no information for this feature. I had reported to developer to check on this problem.

 

You could able to apply this feature by using __attribute__((stall_enable)) to a kernel, then the compiler should only create stall-enable clusters in that kernel.

 

Thanks

View solution in original post

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New Contributor I
49 Views

Great, thanks

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Employee
49 Views

Hi,

I am glad that the information provided can give help to you.

Thanks

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