[cfarm-users] cfarm26 FP inaccuracies

Martin Guy martinwguy at gmail.com
Wed Aug 26 15:19:06 CEST 2026


The sox_ng testsuite is failing on a single cfarm machine, the 
well-beloved cfarm266.

It turns out that a chorus effect, running internally a 32-bit 
precision, gets slightly different results on cfarm26 than anywhere 
else; the current theory is bugs in its FP silicon that no one is 
managing to work around, "fixed" by dropping the failing test to 16-bit 
audio.

However, this makes cfarm26 an interesting machine for anyone doing FP 
work reliant against FP bugs in the field.

Blessings

     M


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