memory problem with GMP 5
tg at gmplib.org
Fri Jan 15 17:39:57 CET 2010
Paul Zimmermann <Paul.Zimmermann at loria.fr> writes:
> have you checked balanced multiplies too? Do they, too, require much
> more memory than 4.3?
yes. With the same program and sa=sb=31225173 (same product size), GMP 4.3.2
uses 1.6g (same memory) and GMP 5.0.0 uses 2.1g (slightly less than with
unbalanced operands, but still more than 4.3.2).
Could you please try with larger MUL_FFT_TABLE2 (for example from the
repo or from the old release) and see if that helps?
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