Bill Rea wrote:
> Is this about right for this type of system?
>
> Details:-
>
> Ultra-5 270Mhz CPU, 128Mb RAM
> Solaris 7
> gcc version 2.8.1
For a comparison, I've got some Ultra2s with 2x 200MHz CPUs under Solaris 2.5.1.
One is double-checking some numbers in the 4.6M range (with a 256k FFT
> -Original Message-
> From: Aaron Blosser [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, August 04, 1999 10:51 PM
> To: Mersenne@Base. Com
> Subject: RE: Mersenne: Testing times
>
>
> > I've got several UltraSPARCs I've pressed into service and curre
On Wed, Aug 04, 1999 at 09:50:42PM -0600, Aaron Blosser <[EMAIL PROTECTED]> wrote:
>
> It's been noted that GCC isn't the best at compiling under Solaris, for this
> type of code anyway. Someone else (my brother?) will probably have more
> info on this.
I admin several Sparc machines with Solar
> From this I understand that it takes around about the same number of
> interations as the size of the exponent to establish primality.
Correct. See the FAQ at the end of this message for more info.
> I've got several UltraSPARCs I've pressed into service and currently
> have 7 exponents check
> I've got several UltraSPARCs I've pressed into service and currently
> have 7 exponents checked out being tested with MacLucasUNIX.
> It's doing fractionally more than one iteration every second. That's
> judging by the times between checkpoint files at 5000 iterations
> between checkpoints. So
I've not been long involved in GIMPS and noticed the following:-
>So for an exponent like 8027219, you'd save the partial residue at the 10%,
>or 802722th iteration (rounding up or down as normal). Of course, the
>number of iterations varies just slightly from the exponent, but
>whatever...you g
