Posts by Greg

Info	Message
1) Message boards : News : New Cunningham project record Message 2622 Posted 8 Apr 2026 by Greg	The recently completed factorization of 12,311- into 155-digit and 181-digit prime factors set a new Cunningham project record for the largest penultimate prime factor. Congratulations to all of the project volunteers!
2) Message boards : News : Server upgrade is complete Message 2608 Posted 1 Mar 2026 by Greg	The server upgrade is complete. Thanks for your patience during the few hours of downtime.
3) Message boards : News : Server upgrade Message 2607 Posted 17 Feb 2026 by Greg	The NFS@Home server will be upgraded shortly. During this process, the project may be intermittently offline. An announcement will be posted once the upgrades are complete. We apologize for the inconvenience.
4) Message boards : Questions/Problems/Bugs : 15e Lattice Sieve all failing Message 2577 Posted 28 Jul 2025 by Greg	It's interesting that it's both the AVX-512 binary and the regular one. Clearly a problematic polynomial that will pass soon. I do have planned app upgrades that should fix this that I hope to roll out soon. In the meantime, just let these fail.
5) Message boards : News : BOINC Pentathlon Message 2566 Posted 18 May 2025 by Greg	It's an ancient Dell PowerEdge with RAID6 on spinning SAS drives. It has served the project well for over a decade but it's long past time to move on. I'm currently working with campus IT to move the project into the university's modern VM infrastructure.
6) Message boards : News : BOINC Pentathlon - Thanks again! Message 2565 Posted 18 May 2025 by Greg	Thanks to all the BOINC Pentathlon participants who once again devoted their time and computing power to NFS@Home. The project server was struggling to keep up with you at times, but overall it was a success. And thanks again to SETI.Germany for putting this together again. Until next time!
7) Message boards : News : BOINC Pentathlon Message 2558 Posted 6 May 2025 by Greg	Welcome back BOINC Pentathlon participants. NFS@Home has again been chosen this year for the Javelin Throw discipline starting May 9 at midnight UTC. Good luck to all!
8) Message boards : Questions/Problems/Bugs : Work made invalid after message - Client state Compute error Exit status 1 (0x00000001) Unknown error code Message 2548 Posted 8 Apr 2025 by Greg	A bad job got pushed into the 15e_small queue. Those have now been cleared. The other queues were not affected.
9) Message boards : Questions/Problems/Bugs : The prime factors are wrong Message 2516 Posted 6 Dec 2024 by Greg	Should be fixed now. The first half of the original log was correct, but there was a log from another run accidentally included, and those factors were displayed on the webpage. Thanks for pointing it out!
10) Message boards : Chat : User cannot reset password Message 2503 Posted 6 Nov 2024 by Greg	I'm here. :) I'll look into it.
11) Message boards : News : BOINC Pentathlon - Thank you! Message 2474 Posted 21 May 2024 by Greg	Thank you to all the BOINC Pentathlon participants who devoted their time and computing power to NFS@Home, and to SETI.Germany for organizing this event. We look forward to next time!
12) Message boards : Questions/Problems/Bugs : Stuck in Pending Message 2471 Posted 16 May 2024 by Greg	From https://boinc.berkeley.edu/trac/wiki/ProjectOptions: &ltresend_lost_results> 0\|1 &lt/resend_lost_results> If set, and a <other_results> list is present in scheduler request, resend any in-progress results not in the list. This is recommended; it may increase the efficiency of your project. For reasons that are not well understood, a BOINC client sometimes fails to receive the scheduler reply. This flag addresses that issue: it causes the SAME results to be resent by the scheduler, if the client has failed to receive them. The server detected that your client failed to receive some results and resent them.
13) Message boards : Questions/Problems/Bugs : Stuck in Pending Message 2466 Posted 14 May 2024 by Greg	Better for now?
14) Message boards : News : BOINC Pentathlon Message 2462 Posted 9 May 2024 by Greg	Welcome BOINC Pentathlon participants. NFS@Home has been chosen for the Javelin Throw discipline starting May 10 at midnight UTC.
15) Message boards : Questions/Problems/Bugs : 14e Sieve Computation error Message 2447 Posted 2 Mar 2024 by Greg	Some ranges of this one are failing but not all. We are going to plod through it. I'm cancelling the erroring WUs as we go.
16) Message boards : Questions/Problems/Bugs : Why does /lasieve5f_1.11_windows_x86_64.exe use SSE3 but lasieve5f_1.11_x86_64-pc-linux-gnu doesn't? Message 2437 Posted 30 Jan 2024 by Greg	Honestly not sure. The Windows binary was built with MinGW-W64 gcc 4.9.1, while the linux binary was built with gcc 4.1.2. I target arch x86-64, but different options may have been used to compile an included library file. Are you using one of the few early x86-64 CPUs without SSE3 support?
17) Message boards : Questions/Problems/Bugs : m1 apple arm port of nfs applications Message 2435 Posted 29 Jan 2024 by Greg	Yes, the source code is available at https://github.com/gchilders/lasieve5_nfsathome/tree/windows There is a separate Mac branch also, but the Windows branch should work. However, much of the speed comes from x86_64 asm. An ARM port will need to either use the generic C code or port the asm.
18) Message boards : News : And we're back! Message 2431 Posted 5 Jan 2024 by Greg	The NFS@Home server was unexpectedly caught up in a campus network reorganization. That knocked us offline for a bit over a day. There may be brief outages over the next few days as we get everything settled again, but we are mostly back up with a new IP address. We apologize for the inconvenience. Edit: The site came back up in the US on Friday afternoon PST, but because of a misconfigured firewall it wasn't available worldwide until Saturday afternoon. Again, we apologize for the issues.
19) Message boards : Questions/Problems/Bugs : Right? Message 2429 Posted 2 Jan 2024 by Greg	Fixed. Thanks for letting me know!
20) Message boards : NFS Discussion : 14 Message 2426 Posted 31 Dec 2023 by Greg	We've largely cleared out the smaller numbers in the established factoring projects over the years. It's mostly used now to slowly work through the smaller near-repdigits or if a needed, appropriately-sized Odd Perfect or Aliquot number comes up.