George wrote:

> Prime95 (LL, ECM, and factoring), Proth, and I suspect SETI are mostly
> floating point.  Conrad Curry's NFS program, ECM-NET, and the encryption
> cracking are probably mostly integer operations.

ECMNET is virtually entirely integer work.  The GMP library which underlies
it  is *very* heavily optimized integer code on the Intel architecture.

> Of course, you have to weigh that against which projects you find
>  most worthwhile and fun.

Very true!  I find ECMNET worthwhile and fun, but I'm biased.

Paul
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