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myg's avatar
myg
Icon for New Contributor rankNew Contributor
10 months ago
Solved

I want to know how to control hyper-optimized handshaking setting

I just start using quartus pro 20.3 to compile on DE10-PRO. I used prefetch_load in my code and get a error as follow. Compiler Error: Prefetching LSU is not available when hyper-optimized handsha...
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  • Jessica_Intel's avatar
    Jessica_Intel
    9 months ago

    Hi @myg,

    There can be several reasons why hyper-optimized handshaking is "off" even though you are targeting Stratix 10.

    The reason that hyper-optimized handshaking is "off" should be given in the optimization reports.

    Please look for a column called "Hyper-Optimized Handshaking" in the Kernels Summary table of the Summary section of the report.

    By clicking on an entry in this column, you should see the reason appear in the Details pane below. For example, the reason might be:

    • Hyper-optimized handshaking disabled due to instruction in Kernel my_kernel_name

    I hope this helps you find the information you're looking for!

    The most likely performance impact of no hyper-optimized handshaking, is lower achieved Fmax.

    Best regards,

    Jessica

BoonBengT_Altera's avatar
BoonBengT_Altera
Icon for Moderator rankModerator
10 months ago

Hi @myg,


Thank you for posting in Intel community forum and hope all is well.

Just to clarify further, what code are you developing with? Is it RTL or OpenCL?


Also if you can share more details on the mention prefetch_load method such as the URL of the example design or the document that you are referring to that would be a great help.

Hope to hear from you soon.


Best Wishes

BB