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Altera_Forum's avatar
Altera_Forum
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10 years ago

Why is the early resource estimate feature of aoc so off?

Hi everyone, I'm trying to compile a kernel that has multiples loops, of which some are also nested, and the early resource estimate feature gives me estimations that are quite off. Can somebod...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

It's possible that without the# pragma unroll the compiler unrolls the loop on its own. Have you tried force disabling unrolling with "#pragma unroll 1"?

But yeah, I've also had odd cases with the estimates. I'm currently using a kernel that was estimated to take 190%.

It ended up still fitting, but the compilation took a lot of time. I've never encountered an estimate below 100% that didn't work though.