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HRZ's avatar
HRZ
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6 years ago
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Disable Hyperflex Optimization in OpenCL Compiler v18.1.2

How can I disable the Hyperflex optimization that is performed automatically by the OpenCL compiler on Stratix 10 in the v18.1.2 of the compiler? The v19.x versions of the compiler add the -hyper-opt...
MEIYAN_L_Intel's avatar
MEIYAN_L_Intel
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6 years ago

Hi,

According to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/rn/archives/rn-hls-19-1.pdf shows the new feature for Hyper-Optimized Handshaking for Intel Stratix® 10 designs in OpenCL 19.1.

This feature is not supported in OpenCL 18.1.2.

I found there is an BSP for Stratix 10 as link below:

http://fpgasoftware.intel.com/opencl/19.1/?edition=pro&download_manager=dlm3

Also, I will need to do a test for OpenCL compiler 19.1 version and Quartus Prime Pro 18.1.2 version. If I done the test, I will tell here.

Thanks

HRZ's avatar
HRZ
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6 years ago

@MeiYanL_Intel​ That is not true, the HyperFlex optimization already existed in v18.1.x (and maybe even before that); it just had a slightly different name. Please check the attached screenshot from the HTML report of a test compilation using Quartus v18.1.2 against the s10_ref BSP:

Also regarding the link to the BSPs you posted: those BSPs are for Intel's reference boards. I am not using an Intel reference board. I am preparing my environment for the OpenCL BSP of the PAC S10 board which is supposedly going to be released to public soon as part of Intel Acceleration Stack Version 2.0, and will be compatible with Quartus v18.1.2. It is very interesting that even Intel seems to have a hard time keeping OpenCL BSPs for their non-reference boards up-to-date with latest versions of the compiler; Qurtus v18.1.2 was released over 6 months ago and there have been three major releases of Quartus since then...