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-   -   Linear algebra reservations, progress and results (https://www.mersenneforum.org/showthread.php?t=20023)

Dubslow 2015-09-10 06:51

I'll try 11611_109.

Could someone estimate how much memory various 15e jobs would take? Am I right in guessing that (say) the GNFS194 from 4788 would be more than 16 GiB?

fivemack 2015-09-10 09:24

None of the 15e jobs will fit in 8GB, and with 32-bit large primes the filtering on the bigger jobs gets tight-to-impossible in 16G, but the matrix itself isn't too bad until you're into the high-C180s.

The C182 from 147,125 took 14GB for matrix-building; the C257 SNFS 135,82 took 11GB for matrix building.

C193_2340_742 was less over-sieved and took less memory to build the matrix, but the matrix was huge (31.5M) and would not fit in 16G.

Note that the log file understates memory use for the matrix phase; for example, a matrix where the log says 'memory use: 4730.8MB' is currently running with virt=6588M res=6.1G

VictordeHolland 2015-09-10 12:13

GW_9_257 factors
 
1 Attachment(s)
GW_9_257
[code]
prp82 factor: 2657134845708193116575756441180816679272820461238700993416806516117935617001467469
prp97 factor: 5636962207860684217535820039843158929868095238470807539851438174522620002736180244701000991814209[/code]target_density=115 (120 failed filtering), 12.6M matrix, ~120h on 4 cores i7 3770k
log attached

frmky 2015-09-10 22:26

[QUOTE=frmky;410009]I've taken W_795 and GW_3_502. Both should be done tomorrow.[/QUOTE]
W_795
[CODE]p104 factor: 54874034920931135861719895187381751989817503532077501887202266914532304010850653889600111682921895593127
p105 factor: 355018650276589253569732059273899112648065410049958016080785072067440080051354861668797071294222218684689
[/CODE]
GW_3_502
[CODE]p96 factor: 122838606011459566941521222717596412576527332246352792452595461733479143231281284137259355896787
p146 factor: 46114840318482652720226564339831810352662035775416203849592174391227241727948892725892538747025784365157459587577397810713036812808162989587158579
[/CODE]

Jarod 2015-09-11 03:50

29 Bits numbers
 
If there are any more numbers with 29 bits like 55559_219 if nobody wants them (1) I would be like to see if I can complete the LA phase. As I have done these numbers years ago and they were fairly easy. I have 16 gig of RAM.

pinhodecarlos 2015-09-11 04:02

[QUOTE=Speedy51;410071]If there are any more numbers with 29 bits like 55559_219 if nobody wants them (1) I would be like to see if I can complete the LA phase. As I have done these numbers years ago and they were fairly easy. I have 16 gig of RAM.[/QUOTE]

You can try 14441_218 or 61111_221. I'll go for the first one.

Jarod 2015-09-11 06:01

Reserving 61111_211 please
 
[QUOTE=pinhodecarlos;410072]You can try 14441_218 or 61111_221. I'll go for the first one.[/QUOTE]
I will take they 61111_221 thanks so much

xilman 2015-09-11 08:13

[QUOTE=frmky;410053]W_795
[CODE]p104 factor: 54874034920931135861719895187381751989817503532077501887202266914532304010850653889600111682921895593127
p105 factor: 355018650276589253569732059273899112648065410049958016080785072067440080051354861668797071294222218684689
[/CODE]
GW_3_502
[CODE]p96 factor: 122838606011459566941521222717596412576527332246352792452595461733479143231281284137259355896787
p146 factor: 46114840318482652720226564339831810352662035775416203849592174391227241727948892725892538747025784365157459587577397810713036812808162989587158579
[/CODE][/QUOTE]Nice! Emphatically [b]not[/b] ECM misses.

Paul

fivemack 2015-09-11 09:03

GW_4_402 done
 
1 Attachment(s)
[code]
Thu Sep 10 19:32:57 2015 p67 factor: 4305484965211660320499368589393459040079707968434477586884591804617
Thu Sep 10 19:32:57 2015 p173 factor: 14741232394200649623358498484902297359802972545902775872664720200270136843033002261414940248655497471086834979835615230603232298339578937981741217011036131394287636501736993
[/code]

52.8 hours for 10.94M target-density-120 matrix on E5-2650v2

Log attached

pinhodecarlos 2015-09-11 09:39

Sorry, I didn't mean I was going to post-process 14441_218. I was advising J to to 14441_218.

Jarod 2015-09-11 21:42

14441_218
 
[QUOTE=pinhodecarlos;410083]Sorry, I didn't mean I was going to post-process 14441_218. I was advising J to to 14441_218.[/QUOTE]
If you don't want 14441_218 & the owner isn't in a hurry for the result (couple of weeks tops) I can take this number as well as 61111_221? Out of interest who do I send these results to? I just had a look at the numbers and saw that 14441_218 is reserved to Lionel Debroux I am more than happy if you want to keep this number


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