5 ms·
As a side note, what are some use cases for 128 floats?
by frozenport 10y ago
As a side note, what are some use cases for 128 floats?
- santaclaus 10y agoInterior point methods?
- ant6n 10y agohow about bit look up tables.
- ant6n 10y agoFor whoever downvoted, the issues of u128 types came up in the discussion for this function: fn is_token(c: u8) -> bool http://kamalmarhubi.com/blog/2015/09/15/eliminating-branches-in-rust-for-fun-but-not-much-profit/ http://kamalmarhubi.com/blog/2015/09/15/eliminating-branches...
- petters 10y agoSome numerically unstable problem require a lot of precision of solve successfully. Similarily, well-behaved problems can be solve with 32-bit floats, but many require 64-bit floats.
- frozenport 10y agoSo, then 64 bits is enough ( because the problems are being solved at present under 64 buts)? From personal experience, numerical ill behaved problems don't benifited from more precision, rather they benifited from being scaled to be numerically stable. Things like trust parameters, or preconditioners like SSOR.