[QUOTE=swellman;462740]Any progress on 148^83+83^148?[/QUOTE]

remdups left 703M unique relations; I started filtering last night. I'll check on it tonight and report on a matrix size (or that density 128 failed).

[QUOTE=VBCurtis;462748]remdups left 703M unique relations; I started filtering last night. I'll check on it tonight and report on a matrix size (or that density 128 failed).[/QUOTE]

Good luck! Might I ask what command you used for remdups with this job? I haven't yet run remdups on my 32 Gb machine and am not sure of the optimal parameters.

I chose 4000 for DIM, and I think the stats mentioned peak dimension used was 2500 or 2600. So, anything 3000+ should work fine; I'm new to remdups, only used it a half-dozen times or so.

C206_129_95 done
 

[code]
Wed Jul 5 20:42:24 2017 p79 factor: 2353306656022930028910635861744663284129653692693621106551161170628133019327781
Wed Jul 5 20:42:24 2017 p128 factor: 35158938100505702216835191053339927789653957737747925804813852939832755829649106582970407484313288730036287017127163544287828533
[/code]

194.7 hours for 17.80M matrix at density 138 (density 140 didn't work) on 6 cores i7/5820K

Log attached and at [url]https://pastebin.com/f0isNqny[/url]

[QUOTE=VBCurtis;462748]remdups left 703M unique relations; I started filtering last night. I'll check on it tonight and report on a matrix size (or that density 128 failed).[/QUOTE]

Cough, the matrix built at density 128.
Cough, it's 50.0M.
Cough, 9100 hr ETA.

Trying at density 132. Do we care if this takes an actual year?

[QUOTE=VBCurtis;462793]Cough, the matrix built at density 128.
Cough, it's 50.0M.
Cough, 9100 hr ETA.

Trying at density 132. Do we care if this takes an actual year?[/QUOTE]

Better ask Greg to run it on the cluster.

C208_138_73 done
 

[code]
Thu Jul 6 04:09:13 2017 p82 factor: 9736267685286991604296590214686121784068532407049693617052452318676898365463820219
Thu Jul 6 04:09:13 2017 p126 factor: 994443955602334155737530937242373089041045893579192732226709889022286276263920917709561671880531487612825000432373513246463893
[/code]

About 117 hours on 7 threads E5-2650v2 for 15.06M matrix at density 130 (density 140 didn't work). Log attached and at [url]https://pastebin.com/zzGHtnuc[/url]

[QUOTE=VBCurtis;462793]Cough, the matrix built at density 128.
Cough, it's 50.0M.
Cough, 9100 hr ETA.

Trying at density 132. Do we care if this takes an actual year?[/QUOTE]

Any luck with higher TD? What are your feelings on a job duration of this magnitude?

I'm willing to try it if you decide to pass, but I doubt my hardware is any faster than yours (the opposite I predict). :max:

[QUOTE=swellman;462918]Any luck with higher TD? What are your feelings on a job duration of this magnitude?

I'm willing to try it if you decide to pass, but I doubt my hardware is any faster than yours (the opposite I predict). :max:[/QUOTE]

I filled the disk with a retry; I had moved the matrix files for TD 128 before trying 132, didn't notice they were 30+GB. I tried again last night at 136 with sufficient disk space, should have info tonight. The log indicated ~4M excess cycles at 128, which is why I thought 136 might work.

I think we can get creative about transferring the matrix files, and each run this for 5-6 months to get it complete. E.g. I'll run it until December, we figure out a way to transfer the files, and you complete the job? I think we should ask Greg to run the next GNFS, the one that's 1 digit bigger.

I'm game, though I suspect we may encounter some issues in this process (e.g. matching superblock size, etc). Hoping others here can offer advice. Maybe a higher TD will have a significant positive effect on ETA.

FWIW, I'm trying to procure a reburbed HP Z820 with enough memory and at least partial processor power to run a 33-bit job (which will still take months to run). But I don't have it yet - waiting on funding and domestic management buy-in.

Oh, didn't think of superblock/architecture details. The CPUs are core2-era, which likely explains the leisurely ETA (dual 4-core Xeons @2.13, I think). I don't have any other machines with more than 16GB, alas; I'd be more confident if I could start the LA on the same architecture you'd be finishing it on.

I picked up a Z600 (dual 6-core Xeon) from ebay this winter, am very very happy with the purchase. 600 series has 6 DDR3 slots, 3 per CPU socket; 800 series has twice that. I do wish I'd had a crystal ball to warn me DDR prices would double 3 months after purchase, so I could have loaded it better than 6x2GB sticks. So, it doesn't do NFS@home work. A Z820 with a pile of 4GB sticks is a very capable machine!