tg at gmplib.org
Thu Nov 19 14:06:14 UTC 2015
paul zimmermann <Paul.Zimmermann at inria.fr> writes:
you didn't compare on the same machine,
You did not specify your machine type, right?
and didn't give your source file so
that people can reproduce your timings...
I think I did mail it.
I just downloaded primesieve-5.5.0 from http://primesieve.org/ and on the
same machine as CADO-NFS:
zimmerma at tarte:/tmp/primesieve-5.5.0$ time ./primesieve -t1 1000000000
Sieve size = 32 kilobytes
Threads = 1
Primes : 50847534
Seconds : 0.232
This is thus about 10000 times faster than GMP.
As marco pointed out already, this is not a correct comparison.
It is like comparing the time for bringing an egg at a time from the
store to bringing a bagful.
If you want to compare somewhat fairly, you need to loop around
"primesieve" asking for a prime at a time.
Else, compare against the (internal) prime sieve code we do have.
Please encrypt, key id 0xC8601622
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