P-1 on OBD candidates

[kriesel]

Oops, 3s instead of 2s.

Originally Posted by kriesel

...
3321928373 complete to 90, available for reservation to higher
There are 15 others in the exponent range up to 3321929987, in progress at bit levels 86-87 to 88-89 by kriesel, ...

[kriesel]

There is a post giving a 2022-02-08 patch to apply to the 2021-12-02 version Mlucas.c, after download /tar expand, before build via bash makemake.sh.

[kriesel]

Running on ostrich in Ubuntu/WSL/Win10 for now, so some other prime95/Win10 work can run to completion in parallel there. May run various configurations along the way to benchmark alternatives while making useful progress on the exponent. Stage 2 will be split to multiple instances or systems or both. A previous start gave

Using complex FFT radices       768        16        16        16        32
[2021-12-09 02:06:42] M3321928307 S1 bit = 10000 [ 0.04% complete] clocks = 02:08:02.283 [768.2284 msec/iter] Res64: EB3C4D3B62864647. AvgMaxErr = 0.143355255. MaxErr = 0.187500000. Residue shift count = 0.
INFO: Successfully read precomputed/bit-reversed Stage 1 prime-powers product savefile for this modulus and B1 = 17000000.

[kriesel]

Timings are somewhat improved and 10k-iter residue matches compared to previous start.

[2022-02-24 06:33:11] M3321928307 S1 bit = 9000 [ 0.04% complete] clocks = 00:12:18.347 [738.3472 msec/iter] Res64: 98E836A8D8A4A1B2. AvgMaxErr = 0.143778152. MaxErr = 0.171875000. Residue shift count = 0.
[2022-02-24 06:45:40] M3321928307 S1 bit = 10000 [ 0.04% complete] clocks = 00:12:17.187 [737.1878 msec/iter] Res64: EB3C4D3B62864647. AvgMaxErr = 0.143910080. MaxErr = 0.187500000. Residue shift count = 0.

Later iterations, after I interrupted the run and changed interval from 1K iterations to 10K, are taking ~718. msec/iter. Stage 1 is now at 250K iterations completed and logged, 1.02% complete. That's running as follows, on a dual-8-core & x2-HT Xeon e5-2690 (on Ubuntu/WSL/Win10 while prime95 keeps the other Xeon busy):

./Mlucas -cpu 16:30:2

[James Heinrich]

Originally Posted by kriesel

As far as I know, there is no reservation system for P-1 work for p>10⁹ at this time other than posting in this thread.

There is now. You should've asked.

[kriesel]

Originally Posted by James Heinrich

You should've asked.

Ah, there it is after shift-reload of https://www.mersenne.ca/obd. I made the mistake of looking for the general case in the popup menu at upper right of https://www.mersenne.ca/ first. Thank you. You do so much, I hesitated to ask for more!

[kriesel]

Current TF & P-1 status is shown at https://www.mersenne.ca/obd. Current indicated Level is 22.19. Passing Level 23 is expected in ~ 2 more weeks.
3321928171 TF completed to the full 92 bits, 2022-02-05 by mersenne.ca user johnny_jack, now available for P-1 reservation by any user with qualified hardware
3321928307 TF completed to 92 bits, 2022-02-23 by kriesel; reserved for P-1, stage 1 ~5% complete
3321928319 TF completed to 92 bits, 2022-02-26 by kriesel; priority reservation period runs through 2022-03-26
3321938373 & 3321938381 completed to 90 bits, available for reservation to higher TF level
There are 15 others in the exponent range up to 3321939987, in progress at bit levels 87-88 to 89-90 by kriesel, and 1 to 90 bits by johnny_jack, as part of an effort to go expeditiously to OBD Level 24 or higher, with ~30 exponents remaining with no known factors after TF and P-1 factoring completion to recommended levels and bounds, for eventual PRP/GEC/proof & cert when hardware and software development advance sufficiently. Anyone with a sufficiently fast GPU is welcome to help reach OBD level 24 or higher.

At the moment:
OBD TF completed to 92 bits, reserved for P-1 and in progress in P-1 stage 1: 1
OBD TF completed to 92 bits, ready for reservation by that user: 1
OBD TF completed to 92 bits, ready for reservation by anyone with qualified hardware for P-1: 1
OBD TF completed to 91 bits, reserved to 92 bits: 0
OBD TF completed to 91 bits, available for reservation to 92 bits: 0

Systems with qualification(s) completed & posted for OBD P-1: 3 (1 is unconditionally)
Exponents completed thru stage 1 P-1: 0
Exponents completed thru stage 2 P-1: 0

(This status summary is specific to OBD Mersennes. See also Ernst Mayer's F33 P-1 effort, mentioned in the Xeon Phi hardware thread.)

[kriesel]

Current TF & P-1 status is shown at https://www.mersenne.ca/obd. Current indicated Level is 23.08.
3321928171 TF completed to the full 92 bits, 2022-02-05 by mersenne.ca user johnny_jack, now available for P-1 reservation by any user with qualified hardware
3321928307 TF completed to 92 bits, 2022-02-23 by kriesel; reserved for P-1, stage 1 ~20% complete
3321928319 TF completed to 92 bits, 2022-02-26 by kriesel; reserved for P-1, stage 1 ~17% completed on a nonECC ram system, will be redone from start on ECC ram
5 others completed to 90 bits, available for reservation to higher TF level
There are 12 others in the exponent range up to 3321939987, in progress at bit levels 87-88 to 89-90 by kriesel, and 1 to 90 bits by johnny_jack, as part of an effort to go expeditiously to OBD Level 24 or higher, with ~30 exponents remaining with no known factors after TF and P-1 factoring completion to recommended levels and bounds, for eventual PRP/GEC/proof & cert when hardware and software development advance sufficiently. Anyone with a sufficiently fast GPU is welcome to help reach OBD level 24 or higher.

At the moment:
OBD TF completed to 92 bits, reserved for P-1 and in progress in P-1 stage 1: 1
OBD TF completed to 92 bits, reserved for P-1, waiting currently for ECC ram system availability
OBD TF completed to 92 bits, ready for reservation by anyone with qualified hardware for P-1: 1
OBD TF completed to 91 bits, reserved to 92 bits: 0
OBD TF completed to 91 bits, available for reservation to 92 bits: 0

Systems with qualification(s) completed & posted for OBD P-1: 3 (1 is unconditionally)
Exponents completed thru stage 1 P-1: 0
Exponents completed thru stage 2 P-1: 0

(This status summary is specific to OBD Mersennes. See also Ernst Mayer's F33 P-1 effort, mentioned in the Xeon Phi hardware thread.)

[kriesel]

Current TF & P-1 status is shown at https://www.mersenne.ca/obd. Current indicated Level is 23.12.
3321928171 TF completed to the full 92 bits, 2022-02-05 by mersenne.ca user johnny_jack, now available for P-1 reservation by any user with qualified hardware
3321928307 TF completed to 92 bits, 2022-02-23 by kriesel; reserved for P-1, stage 1 ~35% complete
3321928319 TF completed to 92 bits, 2022-02-26 by kriesel; reserved for P-1, stage 1 ~5% completed on an ECC ram system
7 others completed to 90 bits, available for reservation to higher TF level
There are 12 others in the exponent range up to 3321939987, in progress at bit levels 88-89 to 89-90 by kriesel, as part of an effort to go expeditiously to OBD Level 24 or higher, with ~30 exponents remaining with no known factors after TF and P-1 factoring completion to recommended levels and bounds, for eventual PRP/GEC/proof & cert when hardware and software development advance sufficiently. Anyone with a sufficiently fast GPU is welcome to help reach OBD level 24 or higher.

At the moment:
OBD TF completed to 92 bits, reserved for P-1 and in progress in P-1 stage 1: 2
OBD TF completed to 92 bits, ready for reservation by anyone with qualified hardware for P-1: 1
OBD TF completed to 91 bits, reserved to 92 bits: 0
OBD TF completed to 91 bits, available for reservation to 92 bits: 0

Systems with qualification(s) completed & posted for OBD P-1: 3 (1 is unconditionally)
Exponents completed thru stage 1 P-1: 0
Exponents completed thru stage 2 P-1: 0

(This status summary is specific to OBD Mersennes. See also Ernst Mayer's F33 P-1 effort, mentioned in the Xeon Phi hardware thread.)[/QUOTE]

[kriesel]

Current TF & P-1 status is shown at https://www.mersenne.ca/obd. Current indicated Level is 24.03.
3321928171 TF completed to the full 92 bits, 2022-02-05 by mersenne.ca user johnny_jack, now available for P-1 reservation by any user with qualified hardware
3321928307 TF completed to 92 bits, 2022-02-23 by kriesel; reserved for P-1, stage 1 ~64% completed on an ECC ram system
3321928319 TF completed to 92 bits, 2022-02-26 by kriesel; reserved for P-1, stage 1 ~40% completed on an ECC ram system
21 others have been completed to 90 bits, and are available for reservation to a higher TF level.
There are 9 others in the exponent range up to 3321939987, in progress at bit levels 88-89 to 89-90 by kriesel, as part of an effort to go expeditiously to OBD Level 24 or somewhat higher, with ~30 exponents eventually remaining with no known factors after TF and P-1 factoring completion to recommended levels and bounds, for eventual PRP/GEC/proof & CERT when hardware and software development advance sufficiently. Anyone with a sufficiently fast GPU, or fast CPU with at least 128 GiB ram, is welcome to help with TF or P-1 respectively.

At the moment:
OBD TF completed to 92 bits, reserved for P-1 and in progress in P-1 stage 1: 2
OBD TF completed to 92 bits, ready for reservation by anyone with qualified hardware for P-1: 1
OBD TF completed to 91 bits, reserved to 92 bits: 0
OBD TF completed to 91 bits, available for reservation to 92 bits: 0

Systems with qualification(s) completed & posted for OBD P-1: 3 (1 is unconditionally)
Exponents completed thru stage 1 P-1: 0
Exponents completed thru stage 2 P-1: 0

(This status summary is specific to OBD Mersennes. See also Ernst Mayer's F33 P-1 effort, mentioned in the Xeon Phi hardware thread.)

[kriesel]

Current TF & P-1 status is shown at https://www.mersenne.ca/obd. Current indicated Level is 24.04.
3321928171 TF completed to 92 bits, 2022-02-05 by mersenne.ca user johnny_jack, 50% complete stage 1 P-1
3321928307 TF completed to 92 bits, 2022-02-23 by kriesel; reserved for P-1, stage 1 ~95% completed on an ECC ram system
3321928319 TF completed to 92 bits, 2022-02-26 by kriesel; reserved for P-1, stage 1 ~94% completed on an ECC ram system
3321928373 is in progress from 90 to 91 bits TF ~54% complete, reserved by kriesel

27 others have been completed to 90 bits, and are available for reservation to a higher TF level.
There are 2 others in the exponent range up to 3321929987, in progress at bit level 89-90 by kriesel, as part of an effort to go expeditiously to OBD Level 24 or somewhat higher, with ~30 exponents eventually remaining with no known factors after TF and P-1 factoring completion to recommended levels and bounds, for eventual PRP/GEC/proof & CERT when hardware and software development advance sufficiently. Anyone with a sufficiently fast GPU, or fast CPU with at least 64 GiB ram, is welcome to help with TF or P-1 respectively.

At the moment:
OBD TF completed to 92 bits, reserved for P-1 and in progress in P-1 stage 1: 3
OBD TF completed to 92 bits, ready for reservation by anyone with qualified hardware for P-1: 0
OBD TF completed to 91 bits, reserved to 92 bits: 0
OBD TF completed to 91 bits, available for reservation to 92 bits: 0
OBD TF completed to 90 bits, and in progress to 91 bits: 1

Systems with qualification(s) completed & posted for OBD P-1: 3 (1 is unconditionally)
Exponents completed thru stage 1 P-1: 0
Exponents completed thru stage 2 P-1: 0

(This status summary is specific to OBD Mersennes. See also Ernst Mayer's F33 P-1 effort, mentioned in the Xeon Phi hardware thread.)