S720 is complete to n=100K; 1 prime was found for n=50K100K shown below; S720 is now a 1ker :smile:; base released.
Prime: 90*720^99529+1 This was a rather remarkable feat. 2 bases in a row that I've tested for n=50K100K...2 top5000 primes at n>95K that made both of the bases 1 kers! This last one came with only 34 tests remaining in a 3525 line sieve file. :george: 
S748 is complete to n=100K; 1 prime was found for n=50K100K shown below; S748 is now a 1ker :smile:; base released.
Prime: 27*748^88373+1 Missed a top5000 prime by < 30 digits. :no: This is the 4th consecutive 2k base that I've worked on that has found exactly 1 prime for n=50K100K leaving 1k bases in all 4 cases. 
R789
R789 tested n=25k100K
74*789^808081 is prime 4k's remaining Results emailed  Base released [COLOR=Red]Reserving S872 to n=100K[/COLOR] 
S805 is complete to n=100K; no primes found for n=50K100K; 2 k's still remain; base released.

S859 is complete to n=100K; no primes found for n=50K100K; 2 k's still remain; base released.
All 2k bases are now tested to n>=100K. :smile: 
I'd like to run S720 for 100150K.

S872
S872 tested n=25K100K
Primes found: 13*872^38782+1 26*872^45765+1 4k's remaining Results emailed  Base released [COLOR=Red]Reserving R653 to n=100K[/COLOR] 
S991  Chucking it in
1 Attachment(s)
I probably shouldn't have started with such a large effort there. I have about 150160 results, but due to the lack of time that I have had to run PFGW, I haven't been able to accomplish much. I think I'll work on some smaller efforts here  sorry about that.
Results attached. 
Sorry for double post  reserving R894  note that I am only taking k = 6. Will go as far as to prove it hopefully.

Why don't you just continue with S991 and take it to n=50000? We're in no hurry.

In 15 days, I got 160 work units done. There were about 4,000 workunits in the initial batch  at that rate, I'd be done in a year. 25,000 to 50,000 would take about 4 years and two months.
That kind of timeframe is overdoing it for the first reservation I ever make. At the current rate i'm rolling now, I'll be at n=30k for k=6 in the next hour  n=100k in about 12 hours of wall clock time. That's a lot more achievable  I could do that this weekend. 
[QUOTE=f1pokerspeed;311760]Sorry for double post  reserving R894  note that I am only taking k = 6. Will go as far as to prove it hopefully.[/QUOTE]
Be sure and use the sieve file link on the Riesel reservations page. It is sieved for n=25K100K to P=1T. You can quickly use the srfile program to remove all k's that are not = 6. Note that there are "only" 1074 tests for k=6 for this nrange and sieve depth. On a base of this size sieved that far for just one k, that gives you only about a 1314% chance of finding a prime by n=100K. Therefore even testing all the way to n=100K where the tests can push a half hour each, the chances are small that you will find a prime. Just figured I'd give you a heads up on the amount of CPU effort required on large bases here at CRUS. 
[QUOTE=f1pokerspeed;311769]In 15 days, I got 160 work units done. There were about 4,000 workunits in the initial batch  at that rate, I'd be done in a year. 25,000 to 50,000 would take about 4 years and two months.
That kind of timeframe is overdoing it for the first reservation I ever make. At the current rate i'm rolling now, I'll be at n=30k for k=6 in the next hour  n=100k in about 12 hours of wall clock time. That's a lot more achievable  I could do that this weekend.[/QUOTE] How many cores do you have? You might want to recheck those calculations for CPU time needed on k=6 for R894. See my previous post. 
I have a quadcore laptop and a dualcore desktop. The laptop has AVX, but as a consequence of that it runs out of battery quickly.
I thought that a prime before n=100k might be possible (NB: I extrapolated on the total testing time for a single core  oh well, it may be a couple of days then. Time to fire up the desktop... 
[QUOTE=f1pokerspeed;311832]I have a quadcore laptop and a dualcore desktop. The laptop has AVX, but as a consequence of that it runs out of battery quickly.
I thought that a prime before n=100k might be possible (NB: I extrapolated on the total testing time for a single core  oh well, it may be a couple of days then. Time to fire up the desktop...[/QUOTE] I would suggest leaving the laptop plugged into an outlet and removing the battery. Then you have no worries about battery life. Also, the heat generated by the testing lowers the life of the battery quite a bit. My estimate for k=6 n=25K100K was around 15 CPU days. So yeah, 23 days if running 6 cores 24x7. 
Reserving S640 (new, ck = 11925) to n=25k.
Reserving S642 (new, ck = 10932) to n=25k. 
R653
R653 tested n=25K100K  nothing found
6k's remain  Results emailed 
S943
Reserving S943 as new to n=25K

R1027 is complete to n=25K.
122 primes found. Results have been emailed. 
About R1024  I'm working on k=29 in RPS project, it's done to n=3.3M with no primes.

R619 is done to 160K and released. Sieve to 250K is available. All emailed.

I will run R581 for 100150K.

Taking S800, R800, R888, R900 to n=250K.

S640 complete to n = 25k. Files emailed. Base released.

Taking R1030.

Reserving S781 and S941 to n=200K.

Reserving R737 n=50K100K. Using provided sieve file (thank you whoever did it :smile: ). Looking likely to take about 160 hours, ~2 weeks all being well.

1 Attachment(s)
ha, 2 weeks indeed.
R737 complete to n=100K. 26*737^622781 is prime. 2ks remain. Reserving R803 n=50K100K. 
S943
Sierp Base = 943
Conjectured k = 15636 Covering Set = 5, 7, 13, 19, 59 Trivial Factors = k == 1 mod 2(2) and k == 2 mod 3(3) and k == 156 mod 157(157) Found Primes: 5078k's  File emailed Remaining: 98k's  Tested to n=25K  File emailed Trivial Factor Eliminations: 2639k's MOB Eliminations: 2k's  File emailed Base Released 
Currently tentatively started base R955....
wich file correspond to what? pl_mob? pl_remain ( I suppose its the k where no factor were found) pl_trivial ( I suppose the list of prime found whith a low n?) currently at k=19764 
[QUOTE=firejuggler;318664]Currently tentatively started base R955....
wich file correspond to what? pl_mob? pl_remain ( I suppose its the k where no factor were found) pl_trivial ( I suppose the list of prime found whith a low n?) currently at k=19764[/QUOTE] pl_mob are for k that are multiples of b. pl_remain are k that have no primes for n <= the limit specified in the script pl_trivial are k for with k*b^n+1 are trivially prime. 
[QUOTE=rogue;318665]pl_mob are for k that are multiples of b.
pl_remain are k that have no primes for n <= the limit specified in the script pl_trivial are k for with k*b^n+1 are trivially prime.[/QUOTE] Correction and clarification on the last one: pl_trivial are k with a single trivial prime factor for all n. There are no primes and they are not included in the conjecture. All that I need for tests n<=25K are the pl_prime and pl_remain files. Good luck. This base will take a very long time. 
R576
Reserving R576 as new to n=25K

S998
Reserving S998 to 200K
Just getting this base off 188K and to a normal level. 
The ten 5k bases that are only searched to n=25K are among the lowest "difficulty" bases right now. I'll search them all to n=50K:
Reserving R589, R590, R602, R633, R667, R686, R716, R720, S504, and S678 to n=50K. 
Serge has completed S720 to n=175K; no primes were found for n=100K175K; the base is released.

S781
S781 tested 100K200K  nothing found
Results emailed  Base released 
S598 & S957
S598 & S957 reserved as new to n=25K

I'm nearly done with the recent 5k bases reservation. Now the nine 6k bases that are only searched to n=25K are among the lowest "difficulty" bases. Combined with my bases 251500 reservation, I'll search them all to n=50K:
Reserving R778, S558, S564, S602, and S654 to n=50K. 
1 Attachment(s)
R955,
n upto 2500, k upto 50k, 433 k left. see attached file for primes and remaining bases 
R589, R590, R602, R633, R667, R686, R716, R720, S504, and S678 are complete to n=50K; 9 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released except R667.
remaining: R589: 0 primes; 5 k's remaining R590: 1 prime; 4 k's remaining R602: 2 primes; 3 k's remaining R633: 0 primes; 5 k's remaining R667: 3 primes; 2 k's remaining R686: 1 prime; 4 k's remaining R716: 0 primes; 5 k's remaining R720: 0 primes; 5 k's remaining S504: 0 primes; 5 k's remaining S678: 2 primes; 3 k's remaining primes: 38*590^434801 12*602^365171 67*602^410491 458*667^251551 632*667^286501 258*667^378661 104*686^298441 188*678^25679+1 122*678^45968+1 All bases with <= 5 k's remaining are now tested to n>=50K. Extending reservation on R667 to n=100K. I'm now working on all of the 6kers that are at n=25K. 
S501 & S731
S501 & S731 reserved 100K200K

[QUOTE=f1pokerspeed;311760]Sorry for double post  reserving R894  note that I am only taking k = 6. Will go as far as to prove it hopefully.[/QUOTE]
Handing this back  unreserved. Sorry about that, but my machines are just too slow for these high bases. I also haven't been able to find much time to do all of the work and sort all of the results files sorted, on multiple cores, etc. etc. I might go for something different, either a different project or a much smaller target that could be done in a few hours to a day or something like that. 
[QUOTE=f1pokerspeed;319495]Handing this back  unreserved. Sorry about that, but my machines are just too slow for these high bases. I also haven't been able to find much time to do all of the work and sort all of the results files sorted, on multiple cores, etc. etc. I might go for something different, either a different project or a much smaller target that could be done in a few hours to a day or something like that.[/QUOTE]
What you choose to do depends upon how much involvement you want and what you want to accomplish. If you don't have the time to babysit and want smaller work units, then I suggest the CRUS PRPNet project. If you want even smaller workunits, then I suggest PrimeGrid's PPSelow project. 
1 Attachment(s)
R803 complete to n=100K
64*803^980031 is prime, submitted to prime pages. 2ks remain. Reserving R602 n=50K100K. 
[QUOTE=G30ffr3y;319532]R803 complete to n=100K
64*803^980031 is prime, submitted to prime pages. 2ks remain.[/QUOTE] Nice prime G30ffr3y! :smile: 
R778, S558, S564, S602, and S654 are complete to n=50K; 6 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released.
remaining: R778: 1 prime; 5 k's remaining S558: 2 primes; 4 k's remaining S564: 2 primes; 4 k's remaining S602: 1 prime; 5 k's remaining S654: 0 primes; 6 k's remaining primes: 534*778^378711 174*558^28067+1 224*558^34435+1 109*564^30771+1 107*564^42025+1 27*602^29560+1 All bases with <= 6 k's remaining are now tested to n>=50K. 
R667 is complete to n=100K; no primes found for n=50K100K; 2 k's still remain; base released.

Taking S771

S751
S751 tested 2.5K25K
173 primes found 169k's remain Results emailed  Base released Was on recommended list 
[QUOTE=rogue;320323]Taking S771[/QUOTE]
When you reserve a base, can you please specify how far you plan to search it? Thanks. 
n=25000

1 Attachment(s)
R602 complete to n=100K
14*602^533921 is Prime. 2k's remain. Reserving R534 n=50K100K. 
[QUOTE]14*602^533921 is Prime.
2k's remain. [/QUOTE] 2kers are good  nice job:max: 
R679 & R695
Reserving R679 & R695 to 200K  both 1kers

S998
S998 tested n=188K200K  nothing found
Results emailed  base released 
R581 tested n=100K175K  nothing found
Results emailed  base released 
R576
Riesel Base = 576
Conjectured k = 17798 Covering Set = 7, 13, 73, 79 Trivial Factors = k == 1 mod 5(5) and k == 1 mod 23(23) Found Primes: 13427k's  File emailed Remaining: 115k's  Tested to n=2.5K  File emailed Trivial Factor Eliminations: 4178k's MOB 13k's  File emailed 63k's proven composite by full algebraic factors  File emailed Base Released 
S935 & S939
Reserving S935 & S939 to n=200K  both 1ker's

1 Attachment(s)
R1025 tested to n=800k, nothing. Going on...

[QUOTE=PuzzlePeter;321919]R1025 tested to n=800k, nothing. Going on...[/QUOTE]
At more than 24 hours per test, your stamina and patience on this is impressive! :smile: 
[QUOTE=gd_barnes;321964]At more than 24 hours per test, your stamina and patience on this is impressive! :smile:[/QUOTE]
The sieve file ends at n=1M. That's where I'll give up. 
R1030 completed to n=25000 and released. 95 primes found:
[code] 593*1030^118181 857*1030^179401 1418*1030^117161 1673*1030^118641 2061*1030^119061 2063*1030^179971 2510*1030^143481 2804*1030^147831 3519*1030^225861 4182*1030^102331 4371*1030^147001 4559*1030^135471 4839*1030^122291 4884*1030^186771 5144*1030^100531 7154*1030^234891 7542*1030^113981 7839*1030^116051 8615*1030^124341 9911*1030^161961 10248*1030^248321 10601*1030^121371 12782*1030^215291 12962*1030^114821 13289*1030^110711 13313*1030^111231 13956*1030^104071 14238*1030^129811 15054*1030^137311 15636*1030^188741 15720*1030^115921 15983*1030^153991 16175*1030^213151 16518*1030^120141 16701*1030^109141 16748*1030^134891 16799*1030^137101 17657*1030^155881 18000*1030^151251 18795*1030^112451 19463*1030^115901 19631*1030^214541 20270*1030^158851 21650*1030^114481 21905*1030^203061 21984*1030^142101 22280*1030^167271 22512*1030^103791 22530*1030^217791 25944*1030^180171 26271*1030^108811 26417*1030^138891 27257*1030^189601 27444*1030^236801 27713*1030^134281 28622*1030^156111 28733*1030^211751 29189*1030^197881 29708*1030^118531 31016*1030^104811 31047*1030^141601 31608*1030^102711 31965*1030^203481 32457*1030^100651 32787*1030^121701 33435*1030^144761 33437*1030^177981 36266*1030^126241 36272*1030^158161 36785*1030^107041 37845*1030^114961 38664*1030^105511 38688*1030^172591 39221*1030^110111 39638*1030^167421 40367*1030^104831 40662*1030^119001 42129*1030^209431 42783*1030^117681 44100*1030^218891 44162*1030^245601 44547*1030^120531 45174*1030^188621 45761*1030^194511 47969*1030^231751 48270*1030^126191 49431*1030^213751 50271*1030^154071 50442*1030^110361 50469*1030^169531 51431*1030^117341 51515*1030^228231 53427*1030^227841 53447*1030^181481 53756*1030^145931 [/code] 
R695
R695 tested n=100K200K  Nothing found
Results emailed  Base released 
1 Attachment(s)
This pattern has got to stop at some point, surely :smile: ...
R534 complete to n=100K. 11*534^803271 is Prime. 2k's remain. Reserving R828 n=50K100K. 
Taking R507 to n=100000.

1 Attachment(s)
S800, R800, R888, R900 are all completed to n=250K.
2 primes were previously reported. Residues attached. 
[QUOTE=rogue;322251]Taking R507 to n=100000.[/QUOTE]
I thought I better check: Do you mean R507 or possibly S507? R507 has 44 k's remaining at n=25K with no available sieve file, which would be a lot of work. S507 has 4 k's remaining at n=50K with a sieve file. 
[QUOTE=gd_barnes;322319]I thought I better check: Do you mean R507 or possibly S507? R507 has 44 k's remaining at n=25K with no available sieve file, which would be a lot of work. S507 has 4 k's remaining at n=50K with a sieve file.[/QUOTE]
R507, the one with more k, because someone tested a single k to n=56000. 
Reserving R501, R520, R550, R677, R766, R767, R798, S518, S578, S680, S792, and S942 to n=50K.

R679
R679 tested n=100K200K  Nothing found
Results emailed  Base released 
S957
Sierp Base = 957
Conjectured k = 19638 Covering Set = 5, 13, 479 Trivial Factors = k == 1 mod 2(2) and k == 238 mod 239(239) Found Primes: 9571k's  File emailed Remaining: 200k's  Tested to n=25K  File emailed Trivial Factor Eliminations: 41k's MOB Eliminations: 6k's  File emailed Base Released 
R501, R520, R550, R677, R766, R767, R798, S518, S578, S680, S792, and S942 are complete to n=50K; 15 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released.
remaining: [code] R501: 1 prime; 6 k's remaining R520: 1 prime; 6 k's remaining R550: 0 primes; 7 k's remaining R677: 2 primes; 5 k's remaining R766: 1 prime; 6 k's remaining R767: 0 primes; 7 k's remaining R798: 1 prime; 6 k's remaining S518: 2 primes; 5 k's remaining S578: 3 primes; 4 k's remaining S680: 0 primes; 7 k's remaining S792: 1 prime; 6 k's remaining S942: 3 primes; 4 k's remaining [/code] primes: [code] 814*501^369261 179*520^264321 84*677^369441 38*677^403901 872*766^336051 317*798^374781 52*518^28950+1 16*518^41876+1 52*578^39982+1 61*578^40892+1 2*578^44165+1 243*792^38377+1 166*942^25140+1 37*942^25835+1 202*942^28850+1 [/code] All bases with <= 7 k's remaining are now tested to n>=50K. 
Reserving R532, R984, S536, S553, S577, S603, S762, S926, S978, and S994 to n=50K.

S917 & S983
Reserving S917 & S983 to n=200K

I would like to reserve R1023 to n=25K

Reserving R549, R867, S638, S785, and S866 to n=200K.

R532, R984, S536, S553, S577, S603, S762, S926, S978, and S994 are complete to n=50K; 18 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released.
remaining: [code] R532: 4 primes; 4 k's remaining R984: 1 prime; 7 k's remaining S536: 4 primes; 4 k's remaining S553: 2 primes; 6 k's remaining S577: 1 prime; 7 k's remaining S603: 1 prime; 7 k's remaining S762: 0 primes; 8 k's remaining S926: 2 primes; 6 k's remaining S978: 2 primes; 6 k's remaining S994: 1 prime; 7 k's remaining [/code] primes: [code] 329*532^317671 38*532^394101 261*532^400951 245*532^495781 81*984^335911 145*536^26684+1 77*536^35657+1 26*536^36623+1 32*536^44419+1 1498*553^32100+1 984*553^36330+1 156*577^26837+1 1608*603^42670+1 52*926^29706+1 5*926^40035+1 34*978^29366+1 153*978^41023+1 19*994^46333+1 [/code] All bases with <= 8 k's remaining are now tested to n>=50K. 
R549, R867, S638, S785, and S866 are complete to n=200K, no primes were found for n=100K200K, 1k remains on all bases, the bases are released.
Reserving R662 to n=200K. 
Reserving R600 to n=10K.

S598
Sierp Base = 598
Conjectured k = 18568 Covering Set = 5, 37, 599 Trivial Factors = k == 2 mod 3(3) and k == 198 mod 199(199) Found Primes: 12150k's  File emailed Remaining: 150k's  Tested to n=25K  File emailed Trivial Factor Eliminations: 6251k's MOB Eliminations: 14k's  File emailed GFN Eliminations: 1k 598 Base Released 
S784 & S836
Reserving S784 & S836 to n=200K

Reserving R518, R648, R770, S514, S613, S648, and S656 to n=50K.

S935
S935 tested n=100K200K  nothing found
Results emailed  Base released 
R662 is complete to n=200K; no primes were found for n=100K200K; 1k still remains; base released.

S983
S983 tested n=100K200K  nothing found
Results emailed  Base released 
[QUOTE=MyDogBuster;325257]S983 tested n=100K200K  nothing found
Results emailed  Base released[/QUOTE] Bad sieve file. See Email. 
S917
S917 tested n=100K200K  nothing found
Results emailed  Base released 
Reserving R920, R926, R962, R994, R1009, S920, and S977 to n=50K.

R518, R648, R770, S514, S613, S648, and S656 are complete to n=50K; 11 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released.
remaining: [code] R518: 2 primes; 7 k's remaining R648: 2 primes; 7 k's remaining R770: 1 prime; 8 k's remaining S514: 1 prime; 8 k's remaining S613: 2 primes; 7 k's remaining S648: 1 prime; 8 k's remaining S656: 2 primes; 7 k's remaining[/code] primes: [code] 118*518^335011 97*518^451511 100*648^256651 82*648^326671 199*770^485071 249*514^29583+1 1006*613^27959+1 916*613^29363+1 34*648^43670+1 72*656^31813+1 73*656^38942+1[/code] 
R920, R926, R962, R994, R1009, S920, and S977 are complete to n=50K; 12 primes were found for n=25K50K; # of k's remaining and primes shown below; all bases are released.
remaining: [code] R920: 3 primes; 6 k's remaining R926: 0 primes; 9 k's remaining R962: 3 primes; 6 k's remaining R994: 3 primes; 6 k's remaining R1009: 2 primes; 7 k's remaining S920: 1 prime; 8 k's remaining S977: 0 primes; 9 k's remaining[/code] primes: [code] 98*920^282441 46*920^338531 86*920^459381 8*962^318401 43*962^323671 44*962^474001 86*994^335791 174*994^389761 329*994^421081 1292*1009^284911 1112*1009^434471 79*920^43780+1 [/code] All bases with <= 9 k's remaining are now tested to n>=50K. 
1 Attachment(s)
S771 tested to n=25000 and released. 655 primes found and released.

S798 & S934
Reserving S798 & S934 to n=200K

S983
S983 retested n=100K=200K  nothing found
Results emailed  Base released 
1 Attachment(s)
R828 complete to n=100K.
74*828^762961 is Prime. 2k's remain. Reserving R978 n=50K100K. 
Reserving all of the 10, 11, & 12kers to n=50K as follows:
[code] R536 S529 R567 S572 R641 S617 R663 S628 R678 S837 R709 S904 R722 S908 R744 S962 R748 R802 R848 R872 R894 R912 R932 R937 R957 R992 [/code] This should keep my machines busy for a while. 
1 Attachment(s)
R1029 tested n=400k  500k, no prime. Continuing...

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