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Hi,
I would like to obtain the size of the constant memory cache. So I want to ask, if there is any way how to do it, or if it is at least specified somewhere.
Many thanks for your reply.
Yours sincerely
David
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Thanks for your question. I'm gathering information and will get back to you soon.
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Current architectures don't include dedicated constant cache hardware. Global, constant, and image data all map to the same L3/LLC/eDRAM hardware. As far as I know there is no way to query it.
For more info: micro48-tutorial-on-intel-processor-graphics-architecture-and-programming
Especially slide 42 of the architecture section.
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OK, many thanks for your reply.
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Those Micro48 slides are great.
David, the "Configurations" PRMs for more recent architectures are also a good source for sizes and throughputs:
https://01.org/linuxgraphics/documentation/hardware-specification-prms
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