YAFU Version 2.10

[James Heinrich]

No, you can download the .exe just fine even with Edge.

[henryzz]

Originally Posted by James Heinrich

No, you can download the .exe just fine even with Edge.

It warns me but it is easy to ignore the warning.

[James Heinrich]

Sounds like you're probably crippling yourself with Microsoft SmartScreen, nothing specifically to do with Edge.

[storm5510]

Originally Posted by James Heinrich

Sounds like you're probably crippling yourself with Microsoft SmartScreen, nothing specifically to do with Edge.

Probably. I had to do a Win 10 reinstall a couple of months ago. The previous setup became so scrambled it was hard to run anything. I found a 2.x version of YAFU on an external drive, so I used to be able to run it, but not now. It just presents a red outline box saying it is unable to start. Whatever it needs is not here. Sometimes, programs will display a dialog saying it needs something beginning with "API." There are hundreds of those scattered across the drive with most locations in the main path. What the problem is, I don't know.

As for SmartScreen, I may be able to disable it. If memory serves, I have done something similar before.

[storm5510]

Disabling SmarScreen allowed me to download v2.1. There was a common factor for some things I had in my previous Windows setup. Visual Studio C redistributables. I downloaded everything back to 2012 and installed them all. Yafu 2.1 is running now.

[storm5510]

I ran into a problem with v2.10:

commencing Lanczos iteration (6 threads)
memory use: 102.3 MB
line 80 - The queue is full, unable to add data to it.
line 300 - Failed to enqueue a task to free tasks queue.
line 305 - The worker thread has exited.

I will leave this for another to decipher...

[kruoli]

Ben has said that this comes from the msieve library he uses, so it is nothing he can fix directly. The problem could be potentially solved by using the OpenMP branch of msieve by Greg Childers. I had tried to do this myself once but it was nothing that was quickly doable.

[bur]

Does anyone here has Linux and could test whether CADO actually works with YAFU 2.1?

I ran into this:

When trying to do NFS using CADO I get this error:

ValueError: Given working directory must be an absolute path: cadoWorkdir

I see that cado-nfs.py is called with -w cadoWorkdir. I assume I have to assign a value to cadoWorkdir, but there's no such option in yafu.ini and simply adding it to yafu.ini results in invalid option cadoWorkdir.

[kruoli]

This was introduced recently in CADO-NFS, so YAFU needs to be updated for this.

[bsquared]

Originally Posted by storm5510

I ran into a problem with v2.10:

commencing Lanczos iteration (6 threads)
memory use: 102.3 MB
line 80 - The queue is full, unable to add data to it.
line 300 - Failed to enqueue a task to free tasks queue.
line 305 - The worker thread has exited.

I will leave this for another to decipher...

Originally Posted by kruoli

Ben has said that this comes from the msieve library he uses, so it is nothing he can fix directly. The problem could be potentially solved by using the OpenMP branch of msieve by Greg Childers. I had tried to do this myself once but it was nothing that was quickly doable.

Have you tried restarting with a different number of threads? Especially a smaller number of threads?

[Stargate38]

I'm having problems with this number. It goes into a loop of this:

03/13/23 10:54:13, ****************************
03/13/23 10:54:13, Starting factorization of 3799443788262456075850615749721
03/13/23 10:54:13, using pretesting plan: deep
03/13/23 10:54:13, using tune info for qs/gnfs crossover
03/13/23 10:54:13, ****************************
03/13/23 10:54:13, rho: x^2 + 3, starting 4096 iterations on C31
03/13/23 10:54:13, rho: x^2 + 2, starting 4096 iterations on C31
03/13/23 10:54:14, rho: x^2 + 1, starting 4096 iterations on C31
03/13/23 10:54:14, final ECM pretested depth: 0.000000
03/13/23 10:54:14, c31 cofactor = 3799443788262456075850615749721
03/13/23 10:54:14, Total factoring time = 0.7101 seconds
03/13/23 10:54:14

That C31 factors into the 2 P16 factors visible at the link above. Version info:

YAFU Version 2.10
Built with Microsoft Visual Studio 1931
Using GMP-ECM 7.0.4, Powered by MPIR 3.0.0