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Bill Allombert on Mon, 05 Feb 2024 18:47:52 +0100
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- To: pari-users@pari.math.u-bordeaux.fr
- Subject: Re: nonprime(n)
- From: Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>
- Date: Mon, 5 Feb 2024 18:47:48 +0100
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On Mon, Feb 05, 2024 at 06:41:35PM +0100, Jean-Luc Arnaud wrote:
> Le 03/02/2024 à 18:33, Ruud H.G. van Tol a écrit :
> > for(n=1,2^18, prime(n));
>
> Hi Ruud,
>
> What kind of PC or Mac Monster do you own, which is able to calculate:
>
> ? for(n=1,2^18, prime(n));
> cpu time = 1,516 ms, real time = 1,521 ms.
>
> in 1.5 s, where my iMac does it in ... close to 4min? 😭😭
>
> cpu time = 3min, 38,881 ms, real time = 3min, 56,939 ms.
The trick is to start GP with -p257M so you already have the
prime number availabkle
%gp -q -p 257M
? for(n=1,2^18, prime(n));
? ##
*** last result: cpu time 1,198 ms, real time 1,198 ms.
Cheers,
Bill.