Forum: And now for something completely different
2022-05-18, 17:07
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-18, 15:33
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-18, 00:49
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Replies: 97
Views: 3,799
FastECPP + GWNUM
The attached code can be compiled with GWNUM (after that has compiled from P95 source) in the P95 directory
Then make the change to lib/nt.c of CM (FastECCP code):
int cm_nt_is_prime (mpz_t a)...
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Forum: And now for something completely different
2022-05-16, 11:09
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-13, 18:29
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-13, 12:55
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Replies: 97
Views: 3,799
One might have to type...
One might have to type 'print(fibonacci(37217)/4466041)' to avoid trucation by Pari/GP. I certainly get truncation with echo fibonacci(37217)/4466041 | gp -q but maybe it works with the -n switch on...
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Forum: And now for something completely different
2022-05-11, 19:43
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Replies: 97
Views: 3,799
I noticed that some numbers stall the program,...
I noticed that some numbers stall the program, like (10^79-1)/9. Primo does a BPSW sanity test before ECPP.
@Serge: The 50001 digit ECPP proof is still not in the UTM database. You had better ask...
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Forum: Programming
2022-05-11, 00:37
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Replies: 12
Views: 434
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Forum: And now for something completely different
2022-05-10, 15:57
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Replies: 97
Views: 3,799
questions about mpirun ecpp-mpi
Regarding mpi, can ecpp-mpi be run on non-uniform processors on a network. Can clients drop out without affecting the server? Likewise, can clients be added at runtime?
As far as I can tell, the...
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Forum: And now for something completely different
2022-05-10, 12:42
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Replies: 4
Views: 87
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Forum: Programming
2022-05-10, 11:17
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Replies: 12
Views: 434
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Forum: And now for something completely different
2022-05-09, 18:20
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-09, 16:48
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-09, 00:27
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-08, 22:33
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Replies: 97
Views: 3,799
Even I managed to get mpirun ecpp-mpi -g -n...
Even I managed to get mpirun ecpp-mpi -g -n '(10^1031-1)/9' -c -f cert-1031 working, after downloading, compiling and installing mpfrcx-0.6.3; and configuring ecpp-mpi with the right flag to...
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Forum: And now for something completely different
2022-05-08, 15:13
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-08, 03:52
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Replies: 97
Views: 3,799
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Forum: Flea Market
2022-05-07, 22:13
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Replies: 5
Views: 5,213
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Forum: And now for something completely different
2022-05-07, 15:15
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Replies: 97
Views: 3,799
Some entity should set up fastECPP for a...
Some entity should set up fastECPP for a proof-over-the-net. Clients could latch onto the main server. This way a 60k proof might be computed in a reasonable amount of time.
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Forum: sweety439
2022-05-07, 11:12
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Replies: 4
Views: 136
Like me, Marcel Martin, the author of Primo,...
Like me, Marcel Martin, the author of Primo, loathes Windows. He has good reason to do so as well. You are under a delusion that someone should "update the Windows version". Get real. Install Linux....
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Forum: And now for something completely different
2022-05-06, 23:33
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Replies: 97
Views: 3,799
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Forum: And now for something completely different
2022-05-06, 23:31
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Replies: 97
Views: 3,799
It is 50,001 digits. My estimate for Primo is...
It is 50,001 digits. My estimate for Primo is (50001/49081)^4 = 1.077 or 7.7% longer.
I used quad channel DDR 2400MHz for R49081's certification. I guess they were using octa channel most of the...
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Forum: And now for something completely different
2022-05-06, 22:05
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Replies: 97
Views: 3,799
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Forum: Miscellaneous Math
2022-05-06, 05:30
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Replies: 29
Views: 1,005
2^470000001 in binary is 1 followed by...
2^470000001 in binary is 1 followed by 470,000,001 zeroes. Using 64 bits per limb -- 7,343,751 limbs. How long does it take to allocate and zero (non static) memory of this many words when the speed...
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Forum: And now for something completely different
2022-05-03, 19:59
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Replies: 57
Views: 30,819
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