4 ms·
Some numerically unstable problem require a lot of precision of solve successfully. Similarily, well-behaved problems can be solve with 32-bit floats, but many
by petters 10y ago
Some 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.