R709 tested to n=200k (100-200k)

2 primes found, 7 remain

Results emailed - Base released

R744 tested to n=200k (100-200k)

nothing found, 9 remain

Results emailed - Base released

R722 tested to n=200k (100-200k)

2 primes found, 8 remain

Results emailed - Base released

36*908^146460+1 is prime

I'm still working on S1020, but only have a single core dedicated to it. There are still over 7m k remaining thru n=282. This is a particularly nasty base because sieving doesn't remove as many terms due to 1020 being divisible by 2, 3, and 5.

S832 tested to n=500k (400-500k)

nothing found, 2 remain

Results emailed - Base released

S773
from 257K to 350k no new primes found
base released
RES sent to Gary

S698 tested to n=200k (100-200k)

2 primes found, 8 remain

Results emailed - Base released

Reserving S972 to n=200k (100-200k) for BOINC

Reserving S977

Reserving R957

Reserving R802 to n=200k (100-200k) for BOINC
Reserving R837 to n=200k (100-200k) for BOINC

Reserving S525 to n=2500. Sieve file for n=2500-10K to P=1G will be provided.

S639 and S908 completed to n=200000 and released.

1174*639^123735+1
36*908^146460+1

are the primes found in the range. The residues are attached.

S977 is an interesting base. The largest known prime for this base per this project is for n=18615. No other primes have been found between 18615 and 110000. Statistically that seems unlikely. I intend to search to n=200000. I would be surprised if no primes are found before I finish the range.

Reserving R572 to n=200k (100-200k) for BOINC

10*977^125872+1 is prime. I guess I jinxed myself two days ago. :smile:

S525 is complete to n=2500; 54690 k's remain; partially sieved file for n=2500-10K to P=1G provided; base released.

S972 tested to n=200k (100-200k)

2 primes found, 8 remain

Results emailed - Base release

Reserving S529 to n=300k (200-300k) for BOINC

R572 tested to n=200k (100-200k)

1 prime found, 8 remain

Results emailed - Base release

Reserving R937 to n=200k (100-200k) for BOINC

R802 tested to n=200k (100-200k)

nothing found, 10 remain

Results emailed - Base release

Reserving R950 to n=200k (100-200k) for BOINC

R837 tested to n=200k (100-200k)

3 primes found, 6 remain

Results emailed - Base release

Reserving R972 to n=200k (100-200k) for BOINC

ARG! Two of the subranges I have for S1020 are messed up. My laptop spontaneously rebooted and the files (unbeknownst to me) were corrupted. I have lost about two months of work for each of those subranges.

[QUOTE=rogue;583668]ARG! Two of the subranges I have for S1020 are messed up. My laptop spontaneously rebooted and the files (unbeknownst to me) were corrupted. I have lost about two months of work for each of those subranges.[/QUOTE]


Let me bet its win10, there is a bug in the volume shadow copy, I have disabled it because of random Bluescreens. You can check in event log whats happened.

[QUOTE=rebirther;583669]Let me bet its win10, there is a bug in the volume shadow copy, I have disabled it because of random Bluescreens. You can check in event log whats happened.[/QUOTE]

I did look in the event log, but nothing popped out at me regarding the cause. BTW, it was an actual shutdown, not a blue screen. I wonder if my employer did something to trigger it.

[QUOTE=rogue;583671]I did look in the event log, but nothing popped out at me regarding the cause. BTW, it was an actual shutdown, not a blue screen. I wonder if my employer did something to trigger it.[/QUOTE]

There were a couple of "UPDATE NOW!" things from Microsoft in the past week to address major exploits. Maybe related to that?

[QUOTE=wombatman;583690]There were a couple of "UPDATE NOW!" things from Microsoft in the past week to address major exploits. Maybe related to that?[/QUOTE]

I am fairly good at installing updates as soon as I am aware of them. I had no notice that anything had been updated and that I was required to restart. Note that this just shut down Windows. It didn't restart, which is what normally happens after updates are installed.

Reserving S691 to n=2500. Sieve file for n=2500-10K to P=1G will be provided.

S529 tested to n=300k (200-300k)

nothing found, 9 remain

Results emailed - Base release

Reserving K 4 S848 up to 750K

Reserving S573 to n=500k (300-500k) for BOINC

R937 tested to n=200k (100-200k)

nothing found, 10 remain

Results emailed - Base release

Reserving R992 to n=200k (100-200k) for BOINC
Reserving R1006 to n=200k (100-200k) for BOINC

R957 completed to n=200000 and released.
S977 completed to n=200000 and released.

10*977^125872+1 is the only prime found in the range.

Residues are attached.

R950 tested to n=200k (100-200k)

2 primes found, 8 remain

Results emailed - Base released

Reserving S565 to n=200k (100-200k) for BOINC

R972 tested to n=200k (100-200k)

1 prime found, 9 remain

Results emailed - Base released

S573 tested to n=500k (300-500k)

nothing found, 3 remain

Results emailed - Base released

S691 is complete to n=2500; 62047 k's remain; partially sieved file for n=2500-10K to P=1G provided; base released.

Reserving S583 to n=300k (100-300k) for BOINC
Reserving R712 to n=1M (800k-1M) for BOINC

S565 tested to n=200k (100-200k)

1 prime found, 15 remain

Results emailed - Base released

R992 tested to n=200k (100-200k)

nothing found, 9 remain

Results emailed - Base released

R1006 tested to n=200k (100-200k)

2 primes found, 8 remain

Results emailed - Base released

Reserving R578 to n=200k (100-200k) for BOINC
Reserving S1021 to n=300k (200-300k) for BOINC

Reserving R546 as new base using the new-base script up to 2.5k and sieving to 10k (1G) with srsieve2

[QUOTE=rebirther;585883]Reserving R578 to n=200k (100-200k) for BOINC
[/QUOTE]


Extending to 300k as requested

Reserving R1005 up to n=10000. However i encountered a bug, see the software thread.

[QUOTE=MisterBitcoin;586240]Reserving R1005 up to n=10000. However i encountered a bug, see the software thread.[/QUOTE]
I don't see a new posting in the software thread.

[QUOTE=gd_barnes;586277]I don't see a new posting in the software thread.[/QUOTE]




See [URL="https://www.mersenneforum.org/showthread.php?t=23042&page=52"]here[/URL], using latest srsieve2 fixed it.

R546 tested to n=2.5k + sieved to 1G (2.5-10k)

75963 remain


cant sieving higher than 715M

Results emailed - Base released

Discussion about issues with srsieve2 moved to the software/instructions/questions thread here:
[URL]https://mersenneforum.org/showthread.php?t=9742[/URL]

Reserving R1012 up to n=5K.

Reserving R792 to n=300k (100-300k) for BOINC
Reserving S814 to n=300k (100-300k) for BOINC

S583 tested to n=300k (100-300k)

3 primes found, 12 remain

Results emailed - Base released

Reserving R998 to n=300K.

R712 tested to n=1M (800k-1M)

nothing found, 1 remain

Results emailed - Base released

Reserving S972 to n=300k (200-300k) for BOINC
Reserving S977 to n=300k (200-300k) for BOINC

Reserving R798 to n=300K.

Reserving S908 to n=300k (200-300k) for BOINC

Reserving S705 as new base using the new-base script up to 2.5k and sieving to 10k (1G) with srsieve2

I am aborting S1020. Last night my computer restarted (don't know why) and once again files were lost or corrupted. I would have to restart part of the range from scratch. I lost of months of work and have no desire to restart teh subranges that were impacted. On the plus side, this conjecture would have had over 3.5m k remaining at n=1000, so it is unlikely that anyone would have done further work on it anyways.

S1021 tested to n=300k (200-300k)

1 prime found, 4 remain

Results emailed - Base released

S705 tested to n=2.5k + sieved to 1G (2.5-10k)

93375 remain

Results emailed - Base released

Reserving S726 as new base using the new-base script up to 2.5k and sieving to 10k (1G) with srsieve2

R998 is complete to n=300K; no primes were found for n=200K-300K; 4 k's still remain; base released.

R578 tested to n=300k (100-300k)

1 prime found, 10 remain

Results emailed - Base released

Reserving R904 to n=300k (100-300k) for BOINC

Reserving S848 to n=300k (100-300k) for BOINC

S726 tested to n=2.5k + sieved to 1G (2.5-10k)

119761 remain

Results emailed - Base released

Reserving R1017 to n=300k (250-300k) for BOINC

S977 tested to n=300k (200-300k)

1 prime found, 7 remain

Results emailed - Base released

R798 is complete to n=300K; 1 prime was found for n=200K-300K shown below; 3 k's remain; base released.

Prime:
279*798^235749-1

S814 tested to n=300k (100-300k)

3 primes found, 8 remain

Results emailed - Base released

Reserving S991 to n=300k (100-300k) for BOINC

S972 tested to n=300k (200-300k)

nothing found, 8 remain

Results emailed - Base released

Reserving R536 to n=300k (200-300k) for BOINC
Reserving R558 to n=300k (200-300k) for BOINC

Reserving S917. It appears that it needs more sieving. srsieve2cl has already found three new factors for the range in less than an hour.

[QUOTE=rogue;589137]Reserving S917. It appears that it needs more sieving. srsieve2cl has already found three new factors for the range in less than an hour.[/QUOTE]

That base was not sent to Yoyo for additional sieving. Would you wait few days, I can put it for in front of remain bases, so it should be done quickly
Since our standard sieve depth for single sequence is 1e15 sieving should remove about 770 candidates or about 10.6% ( in whole sieve range up to 1M)

[QUOTE=pepi37;589144]That base was not sent to Yoyo for additional sieving. Would you wait few days, I can put it for in front of remain bases, so it should be done quickly
Since our standard sieve depth for single sequence is 1e15 sieving should remove about 770 candidates or about 10.6% ( in whole sieve range up to 1M)[/QUOTE]

I am sieving with srsieve2cl, which is faster than sr1sieve for this sequence. It doesn't bother me to sieve more deeply.

[QUOTE=rogue;589147]I am sieving with srsieve2cl, which is faster than sr1sieve for this sequence. It doesn't bother me to sieve more deeply.[/QUOTE]

Ok, as you wish 😊

[QUOTE=rogue;589147]I am sieving with srsieve2cl, which is faster than sr1sieve for this sequence. It doesn't bother me to sieve more deeply.[/QUOTE]

FYI, srsieve2cl is sieving at about 5x the speed of sr1sieve for this sequence. That calculation accounts for the difference in how p/sec is computed. I suspect the GPU is starving for work due to heavy CPU utilization when this is running.

S848 k=4 at 615K

Reserving S962 for n=250K-300K.

Reserving R567 to n=300k (200-300k) for BOINC

S908 tested to n=300k (200-300k)

1 prime found, 7 remain

Results emailed - Base released

R792 tested to n=300k (100-300k)

4 primes found, 7 remain

Results emailed - Base released

R1017 tested to n=300k (250-300k)

1 prime found, 5 remain

Results emailed - Base released

R904 tested to n=300k (100-300k)

nothing found, 11 remain

Results emailed - Base released

S962 is complete to n=300K; no primes were found for n=250K-300K; 4 k's still remain; base released.

Reserving R572 to n=300k (200-300k) for BOINC

Reserving R641 to n=300k (200-300k) for BOINC
Reserving R654 to n=300k (200-300k) for BOINC

R536 tested to n=300k (200-300k)

1 prime found, 9 remain

Results emailed - Base released

R567 tested to n=300k (200-300k)

2 primes found, 6 remain

Results emailed - Base released