I have been making extensive use of the Sage interface to libpari (in work
I will be reporting on soon at the Pari workshop
http://pari.math.u-bordeaux.fr/Events/PARI2019/.
http://pari.math.u-bordeaux.fr/Events/PARI2019/
Some of the runs I have been doing use a large amount of RAM and some fail
even on a machine with 512GB. By default the size of the libpari parameter
'parisizemax' is half the physical RAM, for example on a 16GB laptop I see
sage: pari.default('parisizemax')
8324022272
while on the large machine I see
sage: pari.default('parisizemax')
272689184768
One is suppose to be able to increase this using the following syntax
sage: pari.default('parisizemax', 12000000000)
but that raises a run-time error, even though afterwards:
sage: pari.default('parisizemax')
12000002048
This is with 8.6.rc0.
I think it is a bug that there is a run-time error, and my question is
whether or not I can trust that the value has really changed?
John
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