20170120, 20:28  #1761 
Feb 2012
Paris, France
233_{8} Posts 
145^72+72^145 cofactor (15e)
145^72+72^145 is factored
Code:
Fri Jan 20 14:55:09 2017 p86 factor: 87703786972364019431608195397058749092287547928991667456672843153075868703107613442793 Fri Jan 20 14:55:09 2017 p100 factor: 2210021286715014614290405621775603377151959634601407815051621353068190619444766329420677291802010633 Log attached and at http://pastebin.com/km9t4KkG 
20170120, 21:33  #1762  
"Curtis"
Feb 2005
Riverside, CA
2^{3}·3·11·17 Posts 
Quote:
When you say "2x6 threads", do you mean you used MPI to keep one set of 6 processes distinct from the other set, to keep the data local to each CPU? I ask because I have a dualXeon 5650 (6 cores each, 12 total) on the way, and plan on tackling some big matrices with it. Can I just invoke msieve t 12 {etc}, or should I be mucking about with MPI and/or taskset to split the job? I suppose "can" isn't quite what I mean; can someone quantify the speedup from a more advanced use than "msieve t 12 {etc}"? 

20170121, 07:58  #1763  
Feb 2012
Paris, France
10011011_{2} Posts 
Quote:
Code:
mpiexec np 2 mapby socket bindto socket %mpi_msieve% v t 6 ... just one msieve t 6 or msieve t 12 but unfortunately I can't give you the numbers right now. 

20170121, 17:39  #1764 
"Curtis"
Feb 2005
Riverside, CA
1000110001000_{2} Posts 
That's exactly what I was looking for, thank you!

20170121, 20:08  #1765 
Feb 2012
Paris, France
5·31 Posts 
You're welcome, here are some numbers:
 Using 2x 6 threads (with MPI as explained in previous post): Code:
Wed Jan 11 09:14:20 2017 linear algebra at 0.0%, ETA 234h15m Wed Jan 11 09:14:43 2017 checkpointing every 90000 dimensions Fri Jan 20 13:12:01 2017 lanczos halted after 298905 iterations (dim = 18901676) Fri Jan 20 13:12:27 2017 recovered 35 nontrivial dependencies Fri Jan 20 13:12:29 2017 BLanczosTime: 795869 Fri Jan 20 13:12:29 2017 elapsed time 221:04:31 Code:
Sat Jan 21 17:58:15 2017 commencing Lanczos iteration (6 threads) Sat Jan 21 17:58:15 2017 memory use: 8046.8 MB Sat Jan 21 18:00:09 2017 linear algebra at 0.0%, ETA 376h14m Code:
Sat Jan 21 18:06:00 2017 commencing Lanczos iteration (12 threads) Sat Jan 21 18:06:00 2017 memory use: 8047.0 MB Sat Jan 21 18:07:29 2017 linear algebra at 0.0%, ETA 293h23m 
20170124, 01:47  #1766 
Sep 2008
Kansas
2×7×227 Posts 
I'll take P55 (19269...)^51 next.

20170124, 07:42  #1767 
Feb 2012
Paris, France
5·31 Posts 
P55_20156_5_m1
P55(20156...)^51 is factored.
Code:
Tue Jan 24 05:58:26 2017 p84 factor: 940322013842066118893478552199628075999679084425590323928948290553565322827151582101 Tue Jan 24 05:58:26 2017 p121 factor: 1537670403026780958260264404077531779849152647548875287040060122513827450125721017592918041375946498047702440132660850381 Log attached and at http://pastebin.com/3YLXMB1X. 
20170124, 07:59  #1768 
May 2009
Russia, Moscow
23·109 Posts 
10^249+45*10^1241 completed  102 hours for 10.5M matrix (TD=130)
Code:
prp97 factor: 1058314134576003349770157576757398261341275637591655186457355903095338293154242250572586542471071 prp149 factor: 47570811597419943430756398431048875252430079438673794780755089544997090197565725745187114326495767160629829316527724400223086541540148348903597430663 
20170124, 13:33  #1769 
Feb 2012
Paris, France
5·31 Posts 
C196_145_47 (14e)
Taking C196_145_47 next.

20170124, 16:29  #1770 
Jun 2012
2896_{10} Posts 
19218301^31  1
Reserving 19218301^31  1 if it is available.

20170125, 14:21  #1771 
Sep 2008
Kansas
3178_{10} Posts 
P55 (19269...)^51 factored
Guessing about 24 hours to solve a 6.1M matrix, t 4, TD=130. (TD136 failed)
The machine wasn't idle at the beginning of LA. Code:
p94 factor: 3925488933189879342183094944089294977855388227825677716724995836344555324592472843330479439711 p116 factor: 27965361357645581827621384004007663549053808145883995338373731940837851218015431830810603685286723811342793252094611 Last fiddled with by RichD on 20170125 at 14:25 Reason: Add log file. 
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