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DDIAKITE's avatar
DDIAKITE
Icon for Occasional Contributor rankOccasional Contributor
5 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
5 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
5 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!