Discussion related to cado-nfs

[paul zimmermann <Paul.Zimmermann@inria.fr>]

       Christophe,

> To reduce the memory usage in merge you can reduce the value of the
> command line argument -maxlevel (the maximum weight of columns
> considered for merge).
> Also the memory usage increases during merge (because the total weight of
> the matrix increases), but you can set the command line argument
> -target_density to 150 or 100 to produce a bigger matrix with a smaller
> total weight.

if this does not work, another solution is to do more sieving, to reduce the
matrix size at the end of purge.

Paul