Task 60747862
| Name | TF_76-77_215-217M_wu_17459_0 |
| Workunit | 54486658 |
| Created | 6 Nov 2026, 8:33:07 UTC |
| Sent | 11 Nov 2026, 0:48:08 UTC |
| Report deadline | 17 Nov 2026, 0:48:08 UTC |
| Received | 11 Nov 2026, 14:50:10 UTC |
| Server state | Over |
| Outcome | Success |
| Client state | Done |
| Exit status | 0 (0x0) |
| Computer ID | 245397 |
| Run time | 19 min 3 sec |
| CPU time |
|
| Validate state | Valid |
| Credit | 36,000.00 |
| Device peak FLOPS | 235.70 GFLOPS |
| Application version | TF v0.51 (opencl_ati_101) |
| Peak working set size | 120.07 MB |
| Peak swap size | 172.30 MB |
| Peak disk usage | 3.51 MB |
Stderr output
<core_client_version>8.0.3</core_client_version>
<![CDATA[
<stderr_txt>
o.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3312
no factors found so far.
previous work took 27639822 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 12:02 | 3317 71.8% | 40.149 3h01m | 158.72 81206 0.00%
Nov 11 12:02 | 3324 71.9% | 40.198 3h00m | 158.52 81206 0.00%
Nov 11 12:03 | 3329 72.0% | 40.155 3h00m | 158.69 81206 0.00%
Nov 11 12:04 | 3332 72.1% | 40.169 2h59m | 158.64 81206 0.00%
Nov 11 12:04 | 3333 72.2% | 40.158 2h58m | 158.68 81206 0.00%
2026-11-11 12:08:25 (3560): wrapper (7.24.26018): starting
2026-11-11 12:08:25 (3560): wrapper: running mfakto.exe (-d 0)
2026-11-11 12:08:25 (3560): wrapper: created child process 8252
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3332
no factors found so far.
previous work took 27800493 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 12:09 | 3333 72.2% | 40.162 2h58m | 158.66 81206 0.00%
Nov 11 12:09 | 3345 72.3% | 40.239 2h58m | 158.36 81206 0.00%
Nov 11 12:10 | 3348 72.4% | 40.154 2h57m | 158.70 81206 0.00%
Nov 11 12:11 | 3357 72.5% | 40.196 2h56m | 158.53 81206 0.00%
Nov 11 12:11 | 3360 72.6% | 40.163 2h56m | 158.66 81206 0.00%
Nov 11 12:12 | 3368 72.7% | 40.155 2h55m | 158.69 81206 0.00%
Nov 11 12:13 | 3369 72.8% | 40.160 2h54m | 158.67 81206 0.00%
Nov 11 12:13 | 3377 72.9% | 40.188 2h54m | 158.56 81206 0.00%
Nov 11 12:14 | 3380 73.0% | 40.161 2h53m | 158.67 81206 0.00%
Nov 11 12:15 | 3384 73.1% | 40.171 2h52m | 158.63 81206 0.00%
Nov 11 12:15 | 3389 73.2% | 40.195 2h52m | 158.53 81206 0.00%
Nov 11 12:16 | 3392 73.3% | 40.198 2h51m | 158.52 81206 0.00%
Nov 11 12:17 | 3404 73.4% | 40.195 2h50m | 158.53 81206 0.00%
Nov 11 12:17 | 3405 73.5% | 40.167 2h50m | 158.64 81206 0.00%
Nov 11 12:18 | 3413 73.6% | 40.172 2h49m | 158.62 81206 0.00%
Nov 11 12:19 | 3417 73.8% | 40.167 2h48m | 158.64 81206 0.00%
Nov 11 12:19 | 3420 73.9% | 40.168 2h48m | 158.64 81206 0.00%
Nov 11 12:20 | 3425 74.0% | 40.202 2h47m | 158.51 81206 0.00%
Nov 11 12:21 | 3429 74.1% | 40.159 2h46m | 158.68 81206 0.00%
Nov 11 12:21 | 3432 74.2% | 40.158 2h45m | 158.68 81206 0.00%
Nov 11 12:22 | 3437 74.3% | 40.168 2h45m | 158.64 81206 0.00%
Nov 11 12:23 | 3440 74.4% | 40.185 2h44m | 158.57 81206 0.00%
Nov 11 12:23 | 3444 74.5% | 40.152 2h43m | 158.70 81206 0.00%
Nov 11 12:24 | 3453 74.6% | 40.170 2h43m | 158.63 81206 0.00%
Nov 11 12:25 | 3464 74.7% | 40.232 2h42m | 158.39 81206 0.00%
Nov 11 12:25 | 3465 74.8% | 40.168 2h42m | 158.64 81206 0.00%
Nov 11 12:26 | 3468 74.9% | 40.157 2h41m | 158.68 81206 0.00%
Nov 11 12:27 | 3473 75.0% | 40.170 2h40m | 158.63 81206 0.00%
Nov 11 12:27 | 3480 75.1% | 40.208 2h40m | 158.48 81206 0.00%
Nov 11 12:28 | 3488 75.2% | 40.178 2h39m | 158.60 81206 0.00%
Nov 11 12:29 | 3489 75.3% | 40.198 2h38m | 158.52 81206 0.00%
Nov 11 12:29 | 3492 75.4% | 40.155 2h37m | 158.69 81206 0.00%
Nov 11 12:30 | 3497 75.5% | 40.197 2h37m | 158.53 81206 0.00%
Nov 11 12:31 | 3500 75.6% | 40.214 2h36m | 158.46 81206 0.00%
Nov 11 12:31 | 3504 75.7% | 40.195 2h36m | 158.53 81206 0.00%
Nov 11 12:32 | 3509 75.8% | 40.165 2h35m | 158.65 81206 0.00%
Nov 11 12:33 | 3513 75.9% | 40.169 2h34m | 158.64 81206 0.00%
Nov 11 12:33 | 3524 76.0% | 40.164 2h33m | 158.66 81206 0.00%
Nov 11 12:34 | 3525 76.1% | 40.163 2h33m | 158.66 81206 0.00%
Nov 11 12:35 | 3528 76.2% | 40.166 2h32m | 158.65 81206 0.00%
Nov 11 12:35 | 3537 76.4% | 40.156 2h31m | 158.69 81206 0.00%
Nov 11 12:36 | 3545 76.5% | 40.132 2h31m | 158.78 81206 0.00%
Nov 11 12:37 | 3548 76.6% | 40.173 2h30m | 158.62 81206 0.00%
Nov 11 12:37 | 3549 76.7% | 40.147 2h29m | 158.72 81206 0.00%
Nov 11 12:38 | 3552 76.8% | 40.167 2h29m | 158.64 81206 0.00%
Nov 11 12:39 | 3557 76.9% | 40.158 2h28m | 158.68 81206 0.00%
Nov 11 12:39 | 3560 77.0% | 40.174 2h27m | 158.62 81206 0.00%
Nov 11 12:40 | 3564 77.1% | 40.191 2h27m | 158.55 81206 0.00%
Nov 11 12:41 | 3569 77.2% | 40.194 2h26m | 158.54 81206 0.00%
Nov 11 12:41 | 3572 77.3% | 40.200 2h26m | 158.51 81206 0.00%
Nov 11 12:42 | 3585 77.4% | 40.203 2h25m | 158.50 81206 0.00%
Nov 11 12:43 | 3588 77.5% | 40.168 2h24m | 158.64 81206 0.00%
Nov 11 12:43 | 3593 77.6% | 40.149 2h23m | 158.72 81206 0.00%
Nov 11 12:44 | 3597 77.7% | 40.195 2h23m | 158.53 81206 0.00%
Nov 11 12:45 | 3600 77.8% | 40.232 2h22m | 158.39 81206 0.00%
Nov 11 12:45 | 3605 77.9% | 40.227 2h22m | 158.41 81206 0.00%
Nov 11 12:46 | 3608 78.0% | 40.206 2h21m | 158.49 81206 0.00%
Nov 11 12:47 | 3609 78.1% | 40.238 2h20m | 158.36 81206 0.00%
Nov 11 12:48 | 3612 78.2% | 40.196 2h20m | 158.53 81206 0.00%
Nov 11 12:48 | 3620 78.3% | 40.173 2h19m | 158.62 81206 0.00%
Nov 11 12:49 | 3629 78.4% | 40.193 2h18m | 158.54 81206 0.00%
Nov 11 12:50 | 3632 78.5% | 40.153 2h17m | 158.70 81206 0.00%
Nov 11 12:50 | 3633 78.6% | 40.165 2h17m | 158.65 81206 0.00%
2026-11-11 12:57:11 (14560): wrapper (7.24.26018): starting
2026-11-11 12:57:11 (14560): wrapper: running mfakto.exe (-d 0)
2026-11-11 12:57:17 (14560): wrapper: created child process 11504
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3632
no factors found so far.
previous work took 30291622 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 12:58 | 3633 78.6% | 40.159 2h17m | 158.68 81206 0.00%
Nov 11 12:58 | 3644 78.8% | 40.228 2h16m | 158.40 81206 0.00%
Nov 11 12:59 | 3648 78.9% | 40.155 2h15m | 158.69 81206 0.00%
Nov 11 13:00 | 3653 79.0% | 40.186 2h15m | 158.57 81206 0.00%
Nov 11 13:00 | 3657 79.1% | 40.177 2h14m | 158.61 81206 0.00%
Nov 11 13:01 | 3660 79.2% | 40.165 2h13m | 158.65 81206 0.00%
Nov 11 13:02 | 3665 79.3% | 40.161 2h13m | 158.67 81206 0.00%
Nov 11 13:02 | 3668 79.4% | 40.178 2h12m | 158.60 81206 0.00%
Nov 11 13:03 | 3669 79.5% | 40.207 2h12m | 158.49 81206 0.00%
Nov 11 13:04 | 3677 79.6% | 40.217 2h11m | 158.45 81206 0.00%
Nov 11 13:04 | 3684 79.7% | 40.202 2h10m | 158.51 81206 0.00%
Nov 11 13:05 | 3689 79.8% | 40.181 2h09m | 158.59 81206 0.00%
Nov 11 13:06 | 3692 79.9% | 40.169 2h09m | 158.64 81206 0.00%
Nov 11 13:06 | 3693 80.0% | 40.214 2h08m | 158.46 81206 0.00%
Nov 11 13:07 | 3704 80.1% | 40.231 2h08m | 158.39 81206 0.00%
Nov 11 13:08 | 3713 80.2% | 40.202 2h07m | 158.51 81206 0.00%
Nov 11 13:08 | 3717 80.3% | 40.194 2h06m | 158.54 81206 0.00%
Nov 11 13:09 | 3720 80.4% | 40.168 2h05m | 158.64 81206 0.00%
Nov 11 13:10 | 3725 80.5% | 40.223 2h05m | 158.42 81206 0.00%
Nov 11 13:10 | 3728 80.6% | 40.181 2h04m | 158.59 81206 0.00%
Nov 11 13:11 | 3732 80.7% | 40.202 2h03m | 158.51 81206 0.00%
Nov 11 13:12 | 3737 80.8% | 40.181 2h03m | 158.59 81206 0.00%
Nov 11 13:12 | 3740 80.9% | 40.194 2h02m | 158.54 81206 0.00%
Nov 11 13:13 | 3744 81.0% | 40.181 2h01m | 158.59 81206 0.00%
Nov 11 13:14 | 3752 81.1% | 40.164 2h01m | 158.66 81206 0.00%
Nov 11 13:14 | 3753 81.2% | 40.157 2h00m | 158.68 81206 0.00%
Nov 11 13:15 | 3765 81.4% | 40.156 1h59m | 158.69 81206 0.00%
Nov 11 13:16 | 3768 81.5% | 40.171 1h59m | 158.63 81206 0.00%
Nov 11 13:16 | 3773 81.6% | 40.184 1h58m | 158.58 81206 0.00%
Nov 11 13:17 | 3777 81.7% | 40.244 1h58m | 158.34 81206 0.00%
Nov 11 13:18 | 3780 81.8% | 40.193 1h57m | 158.54 81206 0.00%
Nov 11 13:18 | 3788 81.9% | 40.182 1h56m | 158.59 81206 0.00%
Nov 11 13:19 | 3789 82.0% | 40.161 1h55m | 158.67 81206 0.00%
Nov 11 13:20 | 3797 82.1% | 40.167 1h55m | 158.64 81206 0.00%
Nov 11 13:20 | 3800 82.2% | 40.189 1h54m | 158.56 81206 0.00%
Nov 11 13:21 | 3809 82.3% | 40.168 1h53m | 158.64 81206 0.00%
Nov 11 13:22 | 3812 82.4% | 40.169 1h53m | 158.64 81206 0.00%
Nov 11 13:22 | 3824 82.5% | 40.167 1h52m | 158.64 81206 0.00%
Nov 11 13:23 | 3825 82.6% | 40.185 1h51m | 158.57 81206 0.00%
Nov 11 13:24 | 3828 82.7% | 40.175 1h51m | 158.61 81206 0.00%
Nov 11 13:24 | 3833 82.8% | 40.202 1h50m | 158.51 81206 0.00%
Nov 11 13:25 | 3840 82.9% | 40.191 1h49m | 158.55 81206 0.00%
Nov 11 13:26 | 3845 83.0% | 40.173 1h49m | 158.62 81206 0.00%
Nov 11 13:26 | 3849 83.1% | 40.133 1h48m | 158.78 81206 0.00%
Nov 11 13:27 | 3852 83.2% | 40.163 1h47m | 158.66 81206 0.00%
Nov 11 13:28 | 3857 83.3% | 40.199 1h47m | 158.52 81206 0.00%
Nov 11 13:28 | 3860 83.4% | 40.205 1h46m | 158.49 81206 0.00%
Nov 11 13:29 | 3864 83.5% | 40.184 1h45m | 158.58 81206 0.00%
Nov 11 13:30 | 3872 83.6% | 40.183 1h45m | 158.58 81206 0.00%
Nov 11 13:30 | 3873 83.8% | 40.165 1h44m | 158.65 81206 0.00%
Nov 11 13:31 | 3884 83.9% | 40.185 1h43m | 158.57 81206 0.00%
Nov 11 13:32 | 3885 84.0% | 40.167 1h43m | 158.64 81206 0.00%
Nov 11 13:32 | 3888 84.1% | 40.160 1h42m | 158.67 81206 0.00%
Nov 11 13:33 | 3893 84.2% | 40.184 1h41m | 158.58 81206 0.00%
Nov 11 13:34 | 3900 84.3% | 40.219 1h41m | 158.44 81206 0.00%
Nov 11 13:34 | 3905 84.4% | 40.165 1h40m | 158.65 81206 0.00%
Nov 11 13:35 | 3908 84.5% | 40.197 1h39m | 158.53 81206 0.00%
Nov 11 13:36 | 3909 84.6% | 40.153 1h39m | 158.70 81206 0.00%
Nov 11 13:36 | 3912 84.7% | 40.177 1h38m | 158.61 81206 0.00%
Nov 11 13:37 | 3917 84.8% | 40.168 1h37m | 158.64 81206 0.00%
Nov 11 13:38 | 3920 84.9% | 40.177 1h37m | 158.61 81206 0.00%
Nov 11 13:38 | 3924 85.0% | 40.160 1h36m | 158.67 81206 0.00%
Nov 11 13:39 | 3929 85.1% | 40.159 1h35m | 158.68 81206 0.00%
Nov 11 13:40 | 3933 85.2% | 40.178 1h35m | 158.60 81206 0.00%
Nov 11 13:40 | 3944 85.3% | 40.172 1h34m | 158.62 81206 0.00%
Nov 11 13:41 | 3945 85.4% | 40.181 1h33m | 158.59 81206 0.00%
Nov 11 13:42 | 3948 85.5% | 40.166 1h33m | 158.65 81206 0.00%
2026-11-11 14:00:18 (17428): wrapper (7.24.26018): starting
2026-11-11 14:00:18 (17428): wrapper: running mfakto.exe (-d 0)
2026-11-11 14:00:20 (17428): wrapper: created child process 9748
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3945
no factors found so far.
previous work took 32943610 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 14:01 | 3948 85.5% | 40.157 1h33m | 158.68 81206 0.00%
Nov 11 14:01 | 3957 85.6% | 40.230 1h32m | 158.40 81206 0.00%
Nov 11 14:02 | 3965 85.7% | 40.217 1h31m | 158.45 81206 0.00%
2026-11-11 14:27:13 (23344): wrapper (7.24.26018): starting
2026-11-11 14:27:13 (23344): wrapper: running mfakto.exe (-d 0)
2026-11-11 14:27:13 (23344): wrapper: created child process 1916
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3957
no factors found so far.
previous work took 33023997 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 14:27 | 3965 85.7% | 40.182 1h31m | 158.59 81206 0.00%
Nov 11 14:28 | 3968 85.8% | 40.223 1h31m | 158.42 81206 0.00%
Nov 11 14:29 | 3972 85.9% | 40.170 1h30m | 158.63 81206 0.00%
2026-11-11 14:52:41 (9748): wrapper (7.24.26018): starting
2026-11-11 14:52:41 (9748): wrapper: running mfakto.exe (-d 0)
2026-11-11 14:52:41 (9748): wrapper: created child process 16344
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3968
no factors found so far.
previous work took 33104402 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 14:53 | 3972 85.9% | 40.167 1h30m | 158.64 81206 0.00%
Nov 11 14:54 | 3977 86.0% | 40.213 1h29m | 158.46 81206 0.00%
Nov 11 14:54 | 3984 86.1% | 40.161 1h29m | 158.67 81206 0.00%
Nov 11 14:55 | 3989 86.2% | 40.165 1h28m | 158.65 81206 0.00%
Nov 11 14:56 | 3992 86.4% | 40.157 1h27m | 158.68 81206 0.00%
Nov 11 14:56 | 3993 86.5% | 40.172 1h27m | 158.62 81206 0.00%
Nov 11 14:57 | 4004 86.6% | 40.190 1h26m | 158.55 81206 0.00%
Nov 11 14:58 | 4005 86.7% | 40.184 1h25m | 158.58 81206 0.00%
Nov 11 14:58 | 4008 86.8% | 40.158 1h25m | 158.68 81206 0.00%
Nov 11 14:59 | 4017 86.9% | 40.155 1h24m | 158.69 81206 0.00%
Nov 11 15:00 | 4020 87.0% | 40.179 1h23m | 158.60 81206 0.00%
Nov 11 15:00 | 4025 87.1% | 40.187 1h23m | 158.57 81206 0.00%
Nov 11 15:01 | 4028 87.2% | 40.183 1h22m | 158.58 81206 0.00%
Nov 11 15:02 | 4029 87.3% | 40.168 1h21m | 158.64 81206 0.00%
Nov 11 15:02 | 4032 87.4% | 40.196 1h21m | 158.53 81206 0.00%
Nov 11 15:03 | 4040 87.5% | 40.178 1h20m | 158.60 81206 0.00%
Nov 11 15:04 | 4049 87.6% | 40.166 1h19m | 158.65 81206 0.00%
Nov 11 15:04 | 4052 87.7% | 40.174 1h19m | 158.62 81206 0.00%
Nov 11 15:05 | 4053 87.8% | 40.180 1h18m | 158.59 81206 0.00%
Nov 11 15:06 | 4064 87.9% | 40.167 1h17m | 158.64 81206 0.00%
Nov 11 15:06 | 4073 88.0% | 40.160 1h16m | 158.67 81206 0.00%
Nov 11 15:07 | 4077 88.1% | 40.198 1h16m | 158.52 81206 0.00%
Nov 11 15:08 | 4080 88.2% | 40.195 1h15m | 158.53 81206 0.00%
Nov 11 15:08 | 4085 88.3% | 40.175 1h15m | 158.61 81206 0.00%
Nov 11 15:09 | 4088 88.4% | 40.174 1h14m | 158.62 81206 0.00%
Nov 11 15:10 | 4089 88.5% | 40.171 1h13m | 158.63 81206 0.00%
Nov 11 15:10 | 4092 88.6% | 40.231 1h13m | 158.39 81206 0.00%
Nov 11 15:11 | 4097 88.8% | 40.160 1h12m | 158.67 81206 0.00%
Nov 11 15:12 | 4104 88.9% | 40.201 1h11m | 158.51 81206 0.00%
Nov 11 15:12 | 4109 89.0% | 40.180 1h10m | 158.59 81206 0.00%
Nov 11 15:13 | 4113 89.1% | 40.161 1h10m | 158.67 81206 0.00%
Nov 11 15:14 | 4124 89.2% | 40.173 1h09m | 158.62 81206 0.00%
Nov 11 15:14 | 4125 89.3% | 40.164 1h08m | 158.66 81206 0.00%
Nov 11 15:15 | 4133 89.4% | 40.155 1h08m | 158.69 81206 0.00%
2026-11-11 15:22:47 (20592): wrapper (7.24.26018): starting
2026-11-11 15:22:47 (20592): wrapper: running mfakto.exe (-d 0)
2026-11-11 15:22:48 (20592): wrapper: created child process 1928
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 4133
no factors found so far.
previous work took 34470400 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 15:23 | 4137 89.5% | 40.163 1h07m | 158.66 81206 0.00%
Nov 11 15:24 | 4140 89.6% | 40.225 1h07m | 158.42 81206 0.00%
Nov 11 15:24 | 4148 89.7% | 40.213 1h06m | 158.46 81206 0.00%
Nov 11 15:25 | 4152 89.8% | 40.175 1h05m | 158.61 81206 0.00%
Nov 11 15:26 | 4157 89.9% | 40.216 1h05m | 158.45 81206 0.00%
Nov 11 15:26 | 4160 90.0% | 40.184 1h04m | 158.58 81206 0.00%
Nov 11 15:27 | 4164 90.1% | 40.167 1h03m | 158.64 81206 0.00%
Nov 11 15:28 | 4169 90.2% | 40.217 1h03m | 158.45 81206 0.00%
Nov 11 15:28 | 4172 90.3% | 40.210 1h02m | 158.47 81206 0.00%
Nov 11 15:29 | 4173 90.4% | 40.210 1h01m | 158.47 81206 0.00%
Nov 11 15:30 | 4185 90.5% | 40.165 1h00m | 158.65 81206 0.00%
Nov 11 15:30 | 4188 90.6% | 40.194 1h00m | 158.54 81206 0.00%
Nov 11 15:31 | 4193 90.7% | 40.182 59m36s | 158.59 81206 0.00%
Nov 11 15:32 | 4197 90.8% | 40.163 58m54s | 158.66 81206 0.00%
Nov 11 15:32 | 4208 90.9% | 40.166 58m14s | 158.65 81206 0.00%
Nov 11 15:33 | 4209 91.0% | 40.157 57m34s | 158.68 81206 0.00%
Nov 11 15:34 | 4217 91.1% | 40.181 56m55s | 158.59 81206 0.00%
Nov 11 15:34 | 4220 91.2% | 40.168 56m14s | 158.64 81206 0.00%
Nov 11 15:35 | 4224 91.4% | 40.172 55m34s | 158.62 81206 0.00%
Nov 11 15:36 | 4229 91.5% | 40.200 54m56s | 158.51 81206 0.00%
Nov 11 15:36 | 4232 91.6% | 40.157 54m13s | 158.68 81206 0.00%
Nov 11 15:37 | 4245 91.7% | 40.186 53m35s | 158.57 81206 0.00%
Nov 11 15:38 | 4248 91.8% | 40.188 52m55s | 158.56 81206 0.00%
Nov 11 15:38 | 4253 91.9% | 40.187 52m15s | 158.57 81206 0.00%
Nov 11 15:39 | 4257 92.0% | 40.196 51m35s | 158.53 81206 0.00%
Nov 11 15:40 | 4260 92.1% | 40.182 50m54s | 158.59 81206 0.00%
Nov 11 15:40 | 4265 92.2% | 40.190 50m14s | 158.55 81206 0.00%
Nov 11 15:41 | 4269 92.3% | 40.194 49m34s | 158.54 81206 0.00%
2026-11-11 15:45:07 (5788): wrapper (7.24.26018): starting
2026-11-11 15:45:07 (5788): wrapper: running mfakto.exe (-d 0)
2026-11-11 15:45:08 (5788): wrapper: created child process 1620
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 4269
no factors found so far.
previous work took 35595608 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 15:45 | 4272 92.4% | 40.219 48m56s | 158.44 81206 0.00%
Nov 11 15:46 | 4280 92.5% | 40.299 48m22s | 158.12 81206 0.00%
Nov 11 15:47 | 4284 92.6% | 40.161 47m31s | 158.67 81206 0.00%
Nov 11 15:47 | 4292 92.7% | 40.215 46m55s | 158.46 81206 0.00%
Nov 11 15:48 | 4293 92.8% | 40.187 46m13s | 158.57 81206 0.00%
Nov 11 15:49 | 4304 92.9% | 40.202 45m34s | 158.51 81206 0.00%
Nov 11 15:49 | 4305 93.0% | 40.175 44m52s | 158.61 81206 0.00%
Nov 11 15:50 | 4308 93.1% | 40.193 44m13s | 158.54 81206 0.00%
Nov 11 15:51 | 4313 93.2% | 40.174 43m31s | 158.62 81206 0.00%
Nov 11 15:51 | 4320 93.3% | 40.172 42m51s | 158.62 81206 0.00%
Nov 11 15:52 | 4325 93.4% | 40.160 42m10s | 158.67 81206 0.00%
Nov 11 15:53 | 4328 93.5% | 40.184 41m31s | 158.58 81206 0.00%
Nov 11 15:53 | 4329 93.6% | 40.164 40m50s | 158.66 81206 0.00%
Nov 11 15:54 | 4337 93.8% | 40.196 40m12s | 158.53 81206 0.00%
Nov 11 15:55 | 4340 93.9% | 40.197 39m32s | 158.53 81206 0.00%
Nov 11 15:55 | 4344 94.0% | 40.189 38m51s | 158.56 81206 0.00%
Nov 11 15:56 | 4349 94.1% | 40.236 38m13s | 158.37 81206 0.00%
Nov 11 15:57 | 4353 94.2% | 40.199 37m31s | 158.52 81206 0.00%
Nov 11 15:57 | 4364 94.3% | 40.181 36m50s | 158.59 81206 0.00%
Nov 11 15:58 | 4368 94.4% | 40.209 36m11s | 158.48 81206 0.00%
Nov 11 15:59 | 4377 94.5% | 40.226 35m32s | 158.41 81206 0.00%
Nov 11 15:59 | 4385 94.6% | 40.189 34m50s | 158.56 81206 0.00%
Nov 11 16:00 | 4388 94.7% | 40.156 34m08s | 158.69 81206 0.00%
Nov 11 16:01 | 4389 94.8% | 40.159 33m28s | 158.68 81206 0.00%
Nov 11 16:01 | 4392 94.9% | 40.174 32m49s | 158.62 81206 0.00%
Nov 11 16:02 | 4397 95.0% | 40.184 32m09s | 158.58 81206 0.00%
Nov 11 16:03 | 4400 95.1% | 40.197 31m29s | 158.53 81206 0.00%
Nov 11 16:03 | 4404 95.2% | 40.173 30m48s | 158.62 81206 0.00%
Nov 11 16:04 | 4412 95.3% | 40.176 30m08s | 158.61 81206 0.00%
Nov 11 16:05 | 4413 95.4% | 40.163 29m27s | 158.66 81206 0.00%
Nov 11 16:05 | 4424 95.5% | 40.215 28m49s | 158.46 81206 0.00%
Nov 11 16:06 | 4425 95.6% | 40.201 28m08s | 158.51 81206 0.00%
Nov 11 16:07 | 4428 95.7% | 40.278 27m31s | 158.21 81206 0.00%
Nov 11 16:07 | 4433 95.8% | 40.167 26m47s | 158.64 81206 0.00%
Nov 11 16:08 | 4437 95.9% | 40.173 26m07s | 158.62 81206 0.00%
Nov 11 16:09 | 4440 96.0% | 40.322 25m32s | 158.03 81206 0.00%
Nov 11 16:10 | 4445 96.1% | 40.182 24m47s | 158.59 81206 0.00%
Nov 11 16:10 | 4448 96.2% | 40.185 24m07s | 158.57 81206 0.00%
Nov 11 16:11 | 4449 96.4% | 40.163 23m26s | 158.66 81206 0.00%
Nov 11 16:12 | 4452 96.5% | 40.156 22m45s | 158.69 81206 0.00%
Nov 11 16:12 | 4460 96.6% | 40.171 22m06s | 158.63 81206 0.00%
Nov 11 16:13 | 4469 96.7% | 40.193 21m26s | 158.54 81206 0.00%
Nov 11 16:14 | 4472 96.8% | 40.266 20m48s | 158.25 81206 0.00%
Nov 11 16:14 | 4473 96.9% | 40.161 20m05s | 158.67 81206 0.00%
Nov 11 16:15 | 4484 97.0% | 40.179 19m25s | 158.60 81206 0.00%
2026-11-11 16:20:16 (3556): wrapper (7.24.26018): starting
2026-11-11 16:20:16 (3556): wrapper: running mfakto.exe (-d 0)
2026-11-11 16:20:16 (3556): wrapper: created child process 23300
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 4473
no factors found so far.
previous work took 37364150 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 16:21 | 4484 97.0% | 40.201 19m26s | 158.51 81206 0.00%
Nov 11 16:21 | 4488 97.1% | 40.214 18m46s | 158.46 81206 0.00%
2026-11-11 16:32:58 (7512): wrapper (7.24.26018): starting
2026-11-11 16:32:58 (7512): wrapper: running mfakto.exe (-d 0)
2026-11-11 16:32:58 (7512): wrapper: created child process 18160
mfakto 0.16.0-beta.5-Win (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType AUTO
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
post the name to the GIMPS forum or GitHub to have it added to mfakto.
Device name: gfx90c (Advanced Micro Devices, Inc.)
mfakto thread: https://www.mersenneforum.org/node/11037
GitHub: https://github.com/primesearch/mfakto/issues
You can also set GPUType in mfakto.ini to avoid this message.
OpenCL device info
name gfx90c (Advanced Micro Devices, Inc.)
device (driver) version OpenCL 2.0 AMD-APP (3584.0) (3584.0 (PAL,HSAIL))
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 7 (448 compute elements)
clock rate 1900 MHz
Automatic parameters
threads per grid 0
optimizing kernels for GCN
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=216151147 bit_min=76 bit_max=77 (70.80 GHz-days)
Starting trial factoring M216151147 from 2^76 to 2^77 (70.80 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 4488
no factors found so far.
previous work took 37444565 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 16:33 | 4493 97.2% | 40.199 18m05s | 158.52 81206 0.00%
Nov 11 16:34 | 4500 97.3% | 40.272 17m27s | 158.23 81206 0.00%
Nov 11 16:35 | 4505 97.4% | 40.171 16m44s | 158.63 81206 0.00%
Nov 11 16:35 | 4509 97.5% | 40.187 16m04s | 158.57 81206 0.00%
Nov 11 16:36 | 4512 97.6% | 40.203 15m25s | 158.50 81206 0.00%
Nov 11 16:37 | 4517 97.7% | 40.203 14m44s | 158.50 81206 0.00%
Nov 11 16:37 | 4524 97.8% | 40.213 14m04s | 158.46 81206 0.00%
Nov 11 16:38 | 4529 97.9% | 40.164 13m23s | 158.66 81206 0.00%
Nov 11 16:39 | 4532 98.0% | 40.175 12m43s | 158.61 81206 0.00%
Nov 11 16:39 | 4533 98.1% | 40.218 12m04s | 158.44 81206 0.00%
Nov 11 16:40 | 4544 98.2% | 40.206 11m24s | 158.49 81206 0.00%
Nov 11 16:41 | 4545 98.3% | 40.166 10m43s | 158.65 81206 0.00%
Nov 11 16:41 | 4553 98.4% | 40.197 10m03s | 158.53 81206 0.00%
Nov 11 16:42 | 4557 98.5% | 40.186 9m23s | 158.57 81206 0.00%
Nov 11 16:43 | 4560 98.6% | 40.223 8m43s | 158.42 81206 0.00%
Nov 11 16:43 | 4565 98.8% | 40.184 8m02s | 158.58 81206 0.00%
Nov 11 16:44 | 4568 98.9% | 40.173 7m22s | 158.62 81206 0.00%
Nov 11 16:45 | 4572 99.0% | 40.190 6m42s | 158.55 81206 0.00%
Nov 11 16:45 | 4577 99.1% | 40.171 6m02s | 158.63 81206 0.00%
Nov 11 16:46 | 4580 99.2% | 40.195 5m22s | 158.53 81206 0.00%
Nov 11 16:47 | 4584 99.3% | 40.200 4m41s | 158.51 81206 0.00%
Nov 11 16:47 | 4589 99.4% | 40.172 4m01s | 158.62 81206 0.00%
Nov 11 16:48 | 4592 99.5% | 40.182 3m21s | 158.59 81206 0.00%
Nov 11 16:49 | 4593 99.6% | 40.179 2m41s | 158.60 81206 0.00%
Nov 11 16:49 | 4605 99.7% | 40.161 2m00s | 158.67 81206 0.00%
Nov 11 16:50 | 4608 99.8% | 40.191 1m20s | 158.55 81206 0.00%
Nov 11 16:51 | 4613 99.9% | 40.162 0m40s | 158.66 81206 0.00%
Nov 11 16:51 | 4617 100.0% | 40.176 0m00s | 158.61 81206 0.00%
no factor for M216151147 from 2^76 to 2^77 [mfakto 0.16.0-beta.5-Win cl_barrett15_82_gs_2]
tf(): time spent since restart: 18m 45.745s
estimated total time spent: 10h 43m 16.971s
ERROR: get_next_assignment(): no valid assignment found in "worktodo.txt"
2026-11-11 16:51:48 (7512): mfakto.exe exited; CPU time 0.406250
2026-11-11 16:51:48 (7512): called boinc_finish(0)
</stderr_txt>
]]>
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