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DDIAKITE's avatar
DDIAKITE
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Compiler error during routing on Intel DevCloud

Hi, I am having some quartus fitter issues when compiling my OpenCL kernel on Intel DevCloud Stratix 10 (The command line "aoc -v -report -profile -O3 -fp-relaxed backprojection3D_kernel.cl -o bin/...
KennyT_altera's avatar
KennyT_altera
Icon for Super Contributor rankSuper Contributor
6 years ago

Hi,


Can you attached your kernal files to see if we can duplicate it?


The error message show: Error: An error occurred during routing


seems like the design was unable to route, might due to congestion issue. Can you try to reduce some code in your kernel?


Thanks


  • DDIAKITE's avatar
    DDIAKITE
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi,

    I changed my kernel code a bit, the kernel contains four nested loops, and I had many versions for optimizations purpose. It worked when I changed the combination of the loops unrolling factors. The two innermost loops of the kernel version, which does not route, had an unrolling factor of 8 each.

    Thank you!