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Old 2020-10-19, 00:33   #4
charybdis's Avatar
Apr 2020

2×7×19 Posts

Should have realised that I could just search in a relations file to find an answer to my question

Here's one from a job with lim1=175M, lpb1=32, mfb1=90:
That's two large 32-bit prime factors on the algebraic side, so the cofactor wasn't far off 2^64. It sure looks like CADO is just using a bound of 2^(2*lpb).

It feels like there could be a decent speedup from setting the 2LP bound separately in this situation, and I'd be surprised if no-one had thought of this before, so is there some reason why this wouldn't actually work in practice?
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