Phi.exe
 

When using phi.exe i get the following for 5,447-
[code]633431414877126006851067349030487179738737485483799943885361176411239387706027852446464243101591219648673368261514838572895614432258963458850260822278177593102842860846078284594333977551169453128691642515121
# 5^447-1, difficulty: 206.90, skewness: 0.45, alpha: 0.00
# Cost: 2.56025e+017, est. time: 121.92 GHz days (not accurate yet!)
X4 25
X3 0
X2 5
X1 0
X0 1
Y1 -1
Y0 5293955920339377119177015629247762262821197509765625
M 5293955920339377119177015629247762262821197509765625[/code] or [code]633431414877126006851067349030487179738737485483799943885361176411239387706027852446464243101591219648673368261514838572895614432258963458850260822278177593102842860846078284594333977551169453128691642515121
# 5^447-1, difficulty: 312.44, skewness: 0.45, alpha: 0.00
# Cost: 7.12402e+020, est. time: 339239.14 GHz days (not accurate yet!)
X6 125
X5 0
X4 0
X3 0
X2 0
X1 0
X0 -1
Y1 -1
Y0 5293955920339377119177015629247762262821197509765625
M 5293955920339377119177015629247762262821197509765625[/code]

Why doesn't phi.exe find:[code]633431414877126006851067349030487179738737485483799943885361176411239387706027852446464243101591219648673368261514838572895614432258963458850260822278177593102842860846078284594333977551169453128691642515121
Y0 -88817841970012523233890533447265625
Y1 1
X0 25
X1 0
X2 0
X3 5
X4 0
X5 0
X6 1[/code]
Which also has difficulty 206.90?

Also one request. Can the program be changed to also output msieve polynomials?

Which version is that? I get

[CODE]
kruppaal@cookie.loria.fr:~/ecm/ecm/trunk > phi -deg6 633431414877126006851067349030487179738737485483799943885361176411239387706027852446464243101591219648673368261514838572895614432258963458850260822278177593102842860846078284594333977551169453128691642515121
633431414877126006851067349030487179738737485483799943885361176411239387706027852446464243101591219648673368261514838572895614432258963458850260822278177593102842860846078284594333977551169453128691642515121
# 5^447-1, difficulty: 209.69 (*2/9=46.60), skewness: 1.71, alpha: 0.00
# Cost: 3.24875e+17, est. time: 154.702 GHz days (not accurate yet!)
# sq side = -r
X6 1
X5 0
X4 0
X3 5
X2 0
X1 0
X0 25
Y1 -1
Y0 88817841970012523233890533447265625
M 88817841970012523233890533447265625
[/CODE]

Alex

[QUOTE=akruppa;116686]Which version is that?[/QUOTE]I 'think' 0.1.2

Is the latest version available as a windows executable?

Hmm, version 0.1.2.1 does not find the good sextic. My binary might have been made from a modified source I have at home... maybe I added the n==3%6, degree==6 case there but did not release it yet. I'll see when I get home.

Alex

My code at home added cases for degree 6 with exponent divisible by 3. I copied that over into phi 0.1.2.1. (The other code contains too much unfinished stuff to be released.) I also added some output for msieve, but I'm not sure if it's correct this way... can you please test? If it works I'll make this version 0.1.2.2.

Alex

[QUOTE=akruppa;116803]My code at home added cases for degree 6 with exponent divisible by 3. I copied that over into phi 0.1.2.1. (The other code contains too much unfinished stuff to be released.) I also added some output for msieve, but I'm not sure if it's correct this way... can you please test? If it works I'll make this version 0.1.2.2.

Alex[/QUOTE]Can you provide an executable?

Gah, I forgot last evening when I got home. Sorry. I'll try to make one tonight.

Alex

Here it is.

Alex

i get an error saying it is not a valid win32 program

Hm, it worked in Wine... anyone else getting this error? Henry, what Windows version are you using?

Alex

I am getting this error too - I am using Windows XP professional.