Optimizer FAILED with no explanation

Question

Ran:$ time ~/software/intelFPGA_pro/19.2/hld/bin/aoc -v -fpc -fp-relaxed kernel2.cl -o kernel2.aocx -board=s10gxaoc: Environment checks are completed successfully.aoc: Cached files in /var/tmp/aocl/daniel may be used to reduce compilation timeYou are now compiling the full flow!!aoc: Selected target board s10gxaoc: Running OpenCL parser....aoc: OpenCL parser completed successfully.aoc: Linking Object files....aoc: Optimizing and doing static analysis of code...Error: Optimizer FAILED.Refer to kernel2/kernel2.log for details.Contents of kernel2/kernel2.log are:Compiler Command: aoc -v -fpc -fp-relaxed kernel2.cl -o kernel2.aocx -board=s10gx

wwp00 · Answer

We tried adding the -high-effort flag but got the same results

hrz · Answer

How long does it take from when you run the command until you receive the error? If it takes more than an hour, then your kernel is likely too complex for the compiler to process. The "-high-effort" is for placement and routing and will not affect your case; your kernel compilation is failing in the OpenCL to HDL conversion step, not placement and routing.

wwp00 · Answer

About 90 minutes

hrz · Answer

Then try reducing your design complexity. You can also test 19.3 to see if the same problem will still occur.

meiyan_l_intel · Answer

Hi, You can try to update to Quartus Prime Pro 19.3.If the problem still persist please tell me as well. Thanks

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Optimizer FAILED with no explanation

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