Linear algebra reservations, progress and results

[RichD]

I'll take 11159_61_minus1 next.

[RichD]

Took 69 hours to solve a 9.2M matrix on Core-i5 -t 4 with TD=124.

prp105 factor: 329347811504238833457965584102086540211456535507213918876261265065629481499379566380514666369926114589679
prp138 factor: 218885102190530447459401992132008295020313910622066112850261207061197795853074665058496071556488131465535867494413414875673173725251054119

Five days remain on 11159_61_minus1.

[RichD]

I'll take 9311_61_minus1 next.

[swellman]

I'll take a stab at 132^101+101^132 on 15e. I have a 16 Gb machine that should be able to accomplish LA, though it may take over a month.

2617_71_minus1 Is finally in LA, won't be factored until next weekend.

Remdups had a problem with the data file for 2617_71_minus1 - it seemed to terminate suddenly after reading < 50% of the data file and msieve subsequently could not build a matrix. So I let msieve do the heavy filtering using the original (unreduced) data file and all seems well but the strange behavior has me a little worried about the 32-bit job. Anyone seen this behavior before from remdups?

[Batalov]

Try a few sanity tests on the data file, like

gzip -tvv ...dat...gz
zcat ...dat...gz |awk '{print length($0)}' |sort -nr |head
zcat ...dat...gz |awk -F: '{print NF}' |sort -nr |head
#and also, maybe,
zcat ...dat...gz |awk -F: 'NF==3 && length($0)<200' | remdupss 400 |gzip > file2.data.gz

[swellman]

I'll reserve C216_119_108 for post-processing once sieving is complete.

Batalov - I will try your suggestion once a machine frees up during the next few days. Do you think my problems with remdups were just a one off?

[Dubslow]

I lurk here, though don't follow very closely. Is there an extra need for LA workers?

I can pitch in with a i7-2600K, though the smaller the better since it's my everyday desktop. What are the priority numbers/sievers, and where do I download the work?

[VictordeHolland]

3348577_37_minus1

prp83 factor: 69384967629254932137695841484964624447046413373157688979214873692716668402839265123
prp144 factor: 306713226942394095697648986401689294541609894296004631926095446722772138743457136084865159335641195872614313008879326816416624180358864668729267

Took a lot longer than necessary, because I accidentally started LA a second time after it had already finished. I only noticed it after 11 hours, then I tried the square root phase, but the files where already overwritten. After that I just restarted from scratch.

[R.D. Silverman]

Originally Posted by VictordeHolland

3348577_37_minus1

prp83 factor: 69384967629254932137695841484964624447046413373157688979214873692716668402839265123
prp144 factor: 306713226942394095697648986401689294541609894296004631926095446722772138743457136084865159335641195872614313008879326816416624180358864668729267

Took a lot longer than necessary, because I accidentally started LA a second time after it had already finished. I only noticed it after 11 hours, then I tried the square root phase, but the files where already overwritten. After that I just restarted from scratch.

How about adding some more Homogeneous Cunningham's to the queue? It would be nice to get below 100 composites
so we can extend the tables at the end of the year.

[pinhodecarlos]

Originally Posted by R.D. Silverman

How about adding some more Homogeneous Cunningham's to the queue? It would be nice to get below 100 composites
so we can extend the tables at the end of the year.

Please make your request on this thread: http://www.mersenneforum.org/showthr...=20024&page=17

After the challenge I'll move all my cores to help sieve for 14e application.

[xilman]

Originally Posted by R.D. Silverman

How about adding some more Homogeneous Cunningham's to the queue? It would be nice to get below 100 composites
so we can extend the tables at the end of the year.

Bob: here is a challenge for you. Create a file containing the requisite data and I'll happily cut and paste it into the NFS@Home management page for you.

To get you started, you should be able to work out the format of the data required from this portion of what I put in the queue recently.

245.84	GW_4_404	C234

n: 182663290085714596372021721458859683719140136581935284808903062213888627336770619920223260688617050448274127075762175128041513974064310499694053658089367491687543401766045426285765895242734291894712743140114971423517933893391959045459
m: 43556142965880123323311949751266331066368
c6: 101
c0: -1
skew: 0.463389765542633
type: snfs
rlim: 134217727
alim: 134217727
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

247.65	GW_9_257	C179

n: 14978168706446814773960602413293886719582246766318673163022584571105025810085697492025404992929933355006878238320348636403237469028987526117998884954980764760575821006409605467021
m: 35917545547686059365808220080151141317043
c6: 20817
c0: -1
skew: 0.190661779880819
type: snfs
rlim: 134217727
alim: 134217727
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

Yes, I could easily do it myself but that's not the point. If you have any question about the information above there are a number of people who will be willing to help you.