[quote=Greebley;181430]Also is there a maximum size for ecm curves done by aliqueit.exe? Is there ever an number that I would want to manually run more ecm at higher levels than aliqueit does? Not that I think I will be running much higher than the 124. That took a good while to complete. I am guessing a c130 would be measured in weeks?[/quote]
From aliqueit.cc:[code] int ecm_settings[][3] = {
{ 20, 11000, 74 },
{ 25, 50000, 214 },
{ 30, 250000, 430 },
{ 35, 1000000, 904 },
{ 40, 3000000, 2350 },
{ 45, 11000000, 4480 },
{ 50, 43000000, 7553 },
{ 55, 110000000, 17769 },
{ 60, 260000000, 42017 },
{ 65, 850000000, 69408 }, //quick, someone find a way for this to be useful!
};
[/code]From default aliqueit.ini:[code]//Formulae used to determine the maximum factor size we will do ecm to.
//For QS: <qs_k> * input_digits + <qs_m>
qs_k = 0.448
qs_m = -11.26

//For GNFS: <gnfs_k> * input_digits + <gnfs_m>
gnfs_k = 0.235
gnfs_m = 9.4
[/code]At input_digits=237 for GNFS, that formula puts it above 65 digits. That means that the highest tier of ECM would only be exhausted on a c237 after an [I]enormous[/I] amount of time (I'd guess years on a decent CPU) of ECM. No, you don't have to worry about it. :smile: (Now, might you want to reject aliqueit's assumptions somewhere before this and run more or less ECM? Certainly.)
(By the way, the QS and GNFS calculations meet at 97 digits.)

I determined that I could run 35e7 (350 million) but not 40e7 due to the limit of 2 GB of memory, but if the 85e7 kicks in at 237 digits it doesn't sound like I need to worry about that. It also sounds like aliqueit covers any number I am likely to try to factor.

--

I was curious and tried aliqueit out on the 157 the forum is working on and just the polynomial finding would last 300 hours. I can see why it takes the whole group.

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I think I saw that the beta msieve has degree 6 (and 4) as well as degree 5. How big does the number have to be for degree 6 become worthwhile - or is that not yet known?

[quote=Greebley;181488]I determined that I could run 35e7 (350 million) but not 40e7 due to the limit of 2 GB of memory, but if the 85e7 kicks in at 237 digits it doesn't sound like I need to worry about that. It also sounds like aliqueit covers any number I am likely to try to factor.[/quote]

The 85e7 will actually kick in earlier, at 216 digits. It will finish at 237.

[quote]I think I saw that the beta msieve has degree 6 (and 4) as well as degree 5. How big does the number have to be for degree 6 become worthwhile - or is that not yet known?[/quote]

I think it's around 185 or 190 digits.

As I understand it aliqueit uses a "probably prime" primality test and that some seq have been checked to prove the primality. Is this already done on all sequences?

If not, since I would be stepping over [I]all[/I] the sequences checking for data errors, I could prove primality too. Is there a good way to do this?

Not that I would expect to find any errors, but it would be nice to be able to state that we know the sequences were all correct.

[QUOTE=Greebley;181738]As I understand it aliqueit uses a "probably prime" primality test and that some seq have been checked to prove the primality. Is this already done on all sequences? [/QUOTE]

The database does prove primality. So if the sequence manages to pass aliqueit's checks and is in the db (without any errors), it is fine.

[QUOTE=Greebley;181488]
I think I saw that the beta msieve has degree 6 (and 4) as well as degree 5. How big does the number have to be for degree 6 become worthwhile - or is that not yet known?[/QUOTE]
It's not known (but will definitely be needed above 200 digits). Right now it also doesn't actually matter, if you're using msieve, because the degree 6 code isn't done yet. Nonethless the plan is to switch at around 180 digits, since the degree 5 code has a very difficult time for problems that large.

[quote=axn;181742]The database does prove primality. So if the sequence manages to pass aliqueit's checks and is in the db (without any errors), it is fine.[/quote]

Ah right, that's what worker 4 does all the time - 'primality proof'. Got it.

The -s option no longer works. Anyone else having that problem?

[quote=Greebley;181898]The -s option no longer works. Anyone else having that problem?[/quote]

Fine over here.

Actually does look like it is working but it no longer tells you the number of factors added. Did it get changed?

[quote=Greebley;181902]Actually does look like it is working but it no longer tells you the number of factors added. Did it get changed?[/quote]

Yep, that's gone here. I guess that's the database not aliqueit.