Task 60735132
| Name | TF_76-77_215-217M_wu_4753_0 |
| Workunit | 54473952 |
| Created | 6 Nov 2026, 8:28:14 UTC |
| Sent | 7 Nov 2026, 16:45:37 UTC |
| Report deadline | 13 Nov 2026, 16:45:37 UTC |
| Received | 11 Nov 2026, 19:48:11 UTC |
| Server state | Over |
| Outcome | Success |
| Client state | Done |
| Exit status | 0 (0x0) |
| Computer ID | 224003 |
| Run time | 3 hours 8 min 38 sec |
| CPU time | 17 sec |
| Validate state | Valid |
| Credit | 36,000.00 |
| Device peak FLOPS | 283.70 GFLOPS |
| Application version | TF v0.51 (opencl_ati_101) |
| Peak working set size | 122.39 MB |
| Peak swap size | 177.00 MB |
| Peak disk usage | 3.61 MB |
Stderr output
<core_client_version>8.2.8</core_client_version>
<![CDATA[
<stderr_txt>
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3684
no factors found so far.
previous work took 137086133 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 10 19:01 | 3685 79.9% | 170.00 9h06m | 37.60 81206 0.00%
Nov 10 19:04 | 3688 80.0% | 221.76 11h49m | 28.82 81206 0.00%
Nov 10 19:07 | 3693 80.1% | 129.90 6h53m | 49.20 81206 0.00%
Nov 10 19:09 | 3697 80.2% | 122.11 6h26m | 52.34 81206 0.00%
Nov 10 19:12 | 3705 80.3% | 219.56 11h31m | 29.11 81206 0.00%
Nov 10 19:17 | 3709 80.4% | 262.27 13h41m | 24.37 81206 0.00%
Nov 10 19:19 | 3712 80.5% | 125.28 6h30m | 51.02 81206 0.00%
Nov 10 19:21 | 3717 80.6% | 118.01 6h05m | 54.16 81206 0.00%
Nov 10 19:23 | 3720 80.7% | 139.35 7h09m | 45.87 81206 0.00%
Nov 10 19:27 | 3724 80.8% | 219.67 11h13m | 29.10 81206 0.00%
Nov 10 19:29 | 3732 80.9% | 124.14 6h18m | 51.48 81206 0.00%
Nov 10 19:32 | 3745 81.0% | 171.65 8h40m | 37.24 81206 0.00%
Nov 10 19:36 | 3748 81.1% | 241.74 12h09m | 26.44 81206 0.00%
2026-11-10 19:42:04 (70428): wrapper (7.24.26018): starting
2026-11-10 19:42:04 (70428): wrapper: running mfakto.exe (-d 0)
2026-11-10 19:42:04 (70428): wrapper: created child process 56424
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3748
no factors found so far.
previous work took 139351558 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 10 19:44 | 3753 81.2% | 135.25 6h45m | 47.25 81206 0.00%
Nov 10 19:48 | 3760 81.4% | 223.64 11h07m | 28.58 81206 0.00%
Nov 10 19:50 | 3765 81.5% | 160.43 7h55m | 39.84 81206 0.00%
Nov 10 19:53 | 3768 81.6% | 161.56 7h56m | 39.56 81206 0.00%
2026-11-10 20:23:22 (21284): wrapper (7.24.26018): starting
2026-11-10 20:23:22 (21284): wrapper: running mfakto.exe (-d 0)
2026-11-10 20:23:23 (21284): wrapper: created child process 3100
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3768
no factors found so far.
previous work took 140032438 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 10 20:26 | 3769 81.7% | 187.75 9h10m | 34.04 81206 0.00%
2026-11-10 20:34:20 (12520): wrapper (7.24.26018): starting
2026-11-10 20:34:20 (12520): wrapper: running mfakto.exe (-d 0)
2026-11-10 20:34:21 (12520): wrapper: created child process 8848
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 8 (512 compute elements)
clock rate 2000 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]) #########
2026-11-10 20:49:51 (13472): wrapper (7.24.26018): starting
2026-11-10 20:49:51 (13472): wrapper: running mfakto.exe (-d 0)
2026-11-10 20:49:51 (13472): wrapper: created child process 20180
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 8 (512 compute elements)
clock rate 2000 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]) #########
2026-11-10 21:04:11 (3688): wrapper (7.24.26018): starting
2026-11-10 21:04:11 (3688): wrapper: running mfakto.exe (-d 0)
2026-11-10 21:04:11 (3688): wrapper: created child process 14072
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 8 (512 compute elements)
clock rate 2000 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]) #########
2026-11-10 21:51:25 (13892): wrapper (7.24.26018): starting
2026-11-10 21:51:25 (13892): wrapper: running mfakto.exe (-d 0)
2026-11-10 21:51:25 (13892): wrapper: created child process 8436
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3769
no factors found so far.
previous work took 140220185 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 10 21:54 | 3772 81.8% | 193.42 9h24m | 33.04 81206 0.00%
2026-11-10 22:23:34 (8412): wrapper (7.24.26018): starting
2026-11-10 22:23:34 (8412): wrapper: running mfakto.exe (-d 0)
2026-11-10 22:23:34 (8412): wrapper: created child process 20704
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 8 (512 compute elements)
clock rate 2000 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]) #########
2026-11-10 22:40:15 (3112): wrapper (7.24.26018): starting
2026-11-10 22:40:15 (3112): wrapper: running mfakto.exe (-d 0)
2026-11-10 22:40:15 (3112): wrapper: created child process 19000
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3772
no factors found so far.
previous work took 140413604 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 10 23:00 | 3780 81.9% | 1228.2 2d11h | 5.20 81206 0.00%
Nov 10 23:11 | 3784 82.0% | 626.46 1d06h | 10.20 81206 0.00%
Nov 10 23:14 | 3789 82.1% | 172.18 8h13m | 37.12 81206 0.00%
Nov 10 23:24 | 3793 82.2% | 606.59 1d04h | 10.54 81206 0.00%
Nov 10 23:40 | 3804 82.3% | 990.55 1d22h | 6.45 81206 0.00%
2026-11-11 00:06:27 (2696): wrapper (7.24.26018): starting
2026-11-11 00:06:27 (2696): wrapper: running mfakto.exe (-d 0)
2026-11-11 00:06:27 (2696): wrapper: created child process 14644
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3804
no factors found so far.
previous work took 144037573 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 00:11 | 3805 82.4% | 310.66 14h35m | 20.57 81206 0.00%
Nov 11 00:17 | 3808 82.5% | 336.29 15h41m | 19.01 81206 0.00%
Nov 11 00:19 | 3817 82.6% | 122.85 5h41m | 52.03 81206 0.00%
Nov 11 00:22 | 3825 82.7% | 149.60 6h53m | 42.72 81206 0.00%
Nov 11 00:28 | 3828 82.8% | 384.14 17h36m | 16.64 81206 0.00%
2026-11-11 00:55:00 (8032): wrapper (7.24.26018): starting
2026-11-11 00:55:00 (8032): wrapper: running mfakto.exe (-d 0)
2026-11-11 00:55:03 (8032): wrapper: created child process 20452
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 3828
no factors found so far.
previous work took 145341112 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 01:05 | 3829 82.9% | 581.20 1d02h | 11.00 81206 0.00%
Nov 11 01:07 | 3837 83.0% | 137.71 6h14m | 46.41 81206 0.00%
Nov 11 01:19 | 3840 83.1% | 707.23 1d07h | 9.04 81206 0.00%
Nov 11 01:32 | 3844 83.2% | 778.08 1d10h | 8.21 81206 0.00%
Nov 11 01:47 | 3849 83.3% | 879.42 1d15h | 7.27 81206 0.00%
Nov 11 02:00 | 3852 83.4% | 788.39 1d10h | 8.11 81206 0.00%
Nov 11 02:05 | 3853 83.5% | 310.69 13h38m | 20.57 81206 0.00%
Nov 11 02:13 | 3864 83.6% | 497.92 21h42m | 12.84 81206 0.00%
Nov 11 02:16 | 3868 83.8% | 167.82 7h16m | 38.08 81206 0.00%
Nov 11 02:26 | 3873 83.9% | 604.73 1d02h | 10.57 81206 0.00%
Nov 11 02:35 | 3877 84.0% | 561.88 1d00h | 11.38 81206 0.00%
Nov 11 03:00 | 3880 84.1% | 1505.0 2d15h | 4.25 81206 0.00%
Nov 11 03:03 | 3885 84.2% | 151.72 6h24m | 42.13 81206 0.00%
Nov 11 03:07 | 3888 84.3% | 224.95 9h26m | 28.41 81206 0.00%
Nov 11 03:15 | 3889 84.4% | 522.93 21h47m | 12.22 81206 0.00%
Nov 11 03:17 | 3892 84.5% | 121.94 5h02m | 52.41 81206 0.00%
Nov 11 03:27 | 3900 84.6% | 543.42 22h20m | 11.76 81206 0.00%
Nov 11 03:42 | 3912 84.7% | 952.44 1d14h | 6.71 81206 0.00%
Nov 11 03:48 | 3913 84.8% | 312.50 12h40m | 20.45 81206 0.00%
Nov 11 04:01 | 3924 84.9% | 789.12 1d07h | 8.10 81206 0.00%
Nov 11 04:04 | 3928 85.0% | 210.83 8h25m | 30.32 81206 0.00%
Nov 11 04:07 | 3933 85.1% | 162.41 6h27m | 39.35 81206 0.00%
Nov 11 04:15 | 3937 85.2% | 463.09 18h15m | 13.80 81206 0.00%
Nov 11 04:25 | 3940 85.3% | 586.74 22h58m | 10.89 81206 0.00%
Nov 11 04:30 | 3945 85.4% | 332.51 12h55m | 19.22 81206 0.00%
Nov 11 04:35 | 3948 85.5% | 303.64 11h43m | 21.05 81206 0.00%
Nov 11 04:50 | 3949 85.6% | 869.92 1d09h | 7.35 81206 0.00%
Nov 11 05:02 | 3952 85.7% | 757.26 1d04h | 8.44 81206 0.00%
Nov 11 05:06 | 3957 85.8% | 212.68 8h02m | 30.05 81206 0.00%
Nov 11 05:10 | 3969 85.9% | 262.08 9h49m | 24.39 81206 0.00%
Nov 11 05:15 | 3972 86.0% | 283.70 10h33m | 22.53 81206 0.00%
Nov 11 05:18 | 3973 86.1% | 161.57 5h58m | 39.56 81206 0.00%
Nov 11 05:28 | 3984 86.2% | 615.56 22h34m | 10.38 81206 0.00%
Nov 11 05:32 | 3985 86.4% | 271.07 9h51m | 23.58 81206 0.00%
Nov 11 05:40 | 3993 86.5% | 455.99 16h27m | 14.02 81206 0.00%
Nov 11 05:52 | 4000 86.6% | 738.38 1d02h | 8.66 81206 0.00%
Nov 11 06:01 | 4005 86.7% | 524.35 18h38m | 12.19 81206 0.00%
Nov 11 06:09 | 4012 86.8% | 486.31 17h09m | 13.14 81206 0.00%
Nov 11 06:11 | 4017 86.9% | 116.15 4h03m | 55.03 81206 0.00%
Nov 11 06:17 | 4020 87.0% | 326.99 11h21m | 19.55 81206 0.00%
Nov 11 06:23 | 4024 87.1% | 414.96 14h17m | 15.40 81206 0.00%
Nov 11 06:33 | 4029 87.2% | 565.28 19h18m | 11.31 81206 0.00%
Nov 11 06:40 | 4032 87.3% | 417.11 14h08m | 15.32 81206 0.00%
Nov 11 07:03 | 4033 87.4% | 1365.0 1d21h | 4.68 81206 0.00%
Nov 11 07:05 | 4045 87.5% | 121.65 4h03m | 52.54 81206 0.00%
Nov 11 07:13 | 4048 87.6% | 495.61 16h22m | 12.90 81206 0.00%
Nov 11 07:17 | 4053 87.7% | 221.92 7h16m | 28.80 81206 0.00%
Nov 11 07:21 | 4057 87.8% | 292.51 9h30m | 21.85 81206 0.00%
Nov 11 07:31 | 4060 87.9% | 545.75 17h35m | 11.71 81206 0.00%
Nov 11 07:36 | 4068 88.0% | 313.10 10h00m | 20.41 81206 0.00%
Nov 11 07:54 | 4069 88.1% | 1071.3 1d09h | 5.97 81206 0.00%
Nov 11 07:57 | 4077 88.2% | 175.79 5h31m | 36.36 81206 0.00%
Nov 11 08:04 | 4080 88.3% | 431.88 13h26m | 14.80 81206 0.00%
2026-11-11 08:11:28 (14968): wrapper (7.24.26018): starting
2026-11-11 08:11:28 (14968): wrapper: running mfakto.exe (-d 0)
2026-11-11 08:11:28 (14968): wrapper: created child process 12564
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 8 (512 compute elements)
clock rate 2000 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=215503787 bit_min=76 bit_max=77 (71.02 GHz-days)
Starting trial factoring M215503787 from 2^76 to 2^77 (71.02 GHz-days)
Using GPU kernel "cl_barrett15_82_gs_2"
Found a valid checkpoint file.
last finished class was: 4080
no factors found so far.
previous work took 171053247 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Nov 11 08:18 | 4084 88.4% | 410.73 12h39m | 15.56 81206 0.00%
Nov 11 08:23 | 4089 88.5% | 334.45 10h13m | 19.11 81206 0.00%
Nov 11 08:32 | 4092 88.6% | 517.14 15h39m | 12.36 81206 0.00%
Nov 11 08:39 | 4104 88.8% | 434.18 13h01m | 14.72 81206 0.00%
Nov 11 08:47 | 4105 88.9% | 485.91 14h26m | 13.15 81206 0.00%
Nov 11 08:58 | 4108 89.0% | 607.27 17h52m | 10.52 81206 0.00%
Nov 11 09:02 | 4113 89.1% | 283.83 8h16m | 22.52 81206 0.00%
Nov 11 09:09 | 4117 89.2% | 404.06 11h40m | 15.82 81206 0.00%
Nov 11 09:18 | 4120 89.3% | 564.06 16h08m | 11.33 81206 0.00%
Nov 11 09:21 | 4125 89.4% | 152.02 4h18m | 42.04 81206 0.00%
Nov 11 09:27 | 4132 89.5% | 363.79 10h12m | 17.57 81206 0.00%
Nov 11 09:29 | 4137 89.6% | 131.86 3h39m | 48.47 81206 0.00%
Nov 11 09:31 | 4144 89.7% | 123.26 3h23m | 51.85 81206 0.00%
Nov 11 09:33 | 4152 89.8% | 129.15 3h30m | 49.49 81206 0.00%
Nov 11 09:41 | 4153 89.9% | 475.80 12h49m | 13.43 81206 0.00%
Nov 11 09:46 | 4164 90.0% | 271.95 7h15m | 23.50 81206 0.00%
Nov 11 09:51 | 4165 90.1% | 333.46 8h47m | 19.17 81206 0.00%
Nov 11 09:54 | 4168 90.2% | 129.41 3h22m | 49.39 81206 0.00%
Nov 11 10:00 | 4180 90.3% | 376.39 9h43m | 16.98 81206 0.00%
Nov 11 10:06 | 4185 90.4% | 342.41 8h45m | 18.67 81206 0.00%
Nov 11 10:13 | 4188 90.5% | 414.39 10h28m | 15.42 81206 0.00%
Nov 11 10:17 | 4189 90.6% | 242.61 6h03m | 26.34 81206 0.00%
Nov 11 10:30 | 4192 90.7% | 788.86 19h30m | 8.10 81206 0.00%
Nov 11 10:40 | 4197 90.8% | 607.91 14h51m | 10.51 81206 0.00%
Nov 11 10:53 | 4200 90.9% | 807.70 19h31m | 7.91 81206 0.00%
Nov 11 11:04 | 4204 91.0% | 668.79 15h58m | 9.56 81206 0.00%
Nov 11 11:11 | 4209 91.1% | 414.11 9h46m | 15.43 81206 0.00%
Nov 11 11:31 | 4213 91.2% | 1191.9 1d03h | 5.36 81206 0.00%
Nov 11 11:50 | 4224 91.4% | 1142.5 1d02h | 5.59 81206 0.00%
Nov 11 12:02 | 4225 91.5% | 677.94 15h26m | 9.43 81206 0.00%
Nov 11 12:04 | 4237 91.6% | 121.76 2h44m | 52.49 81206 0.00%
Nov 11 12:06 | 4245 91.7% | 171.97 3h49m | 37.17 81206 0.00%
Nov 11 12:08 | 4248 91.8% | 121.92 2h40m | 52.42 81206 0.00%
Nov 11 12:11 | 4249 91.9% | 143.27 3h06m | 44.61 81206 0.00%
Nov 11 12:13 | 4252 92.0% | 124.25 2h39m | 51.44 81206 0.00%
Nov 11 12:15 | 4257 92.1% | 124.06 2h37m | 51.52 81206 0.00%
Nov 11 12:17 | 4260 92.2% | 123.70 2h34m | 51.67 81206 0.00%
Nov 11 12:19 | 4264 92.3% | 122.72 2h31m | 52.08 81206 0.00%
Nov 11 12:21 | 4269 92.4% | 121.65 2h28m | 52.54 81206 0.00%
Nov 11 12:23 | 4273 92.5% | 123.21 2h27m | 51.88 81206 0.00%
Nov 11 12:25 | 4284 92.6% | 122.31 2h24m | 52.26 81206 0.00%
Nov 11 12:27 | 4285 92.7% | 122.29 2h22m | 52.27 81206 0.00%
Nov 11 12:29 | 4288 92.8% | 121.82 2h20m | 52.47 81206 0.00%
Nov 11 12:31 | 4293 92.9% | 122.10 2h18m | 52.35 81206 0.00%
Nov 11 12:33 | 4297 93.0% | 121.35 2h15m | 52.67 81206 0.00%
Nov 11 12:35 | 4300 93.1% | 121.30 2h13m | 52.69 81206 0.00%
Nov 11 12:37 | 4308 93.2% | 121.84 2h12m | 52.46 81206 0.00%
Nov 11 12:39 | 4309 93.3% | 122.11 2h10m | 52.34 81206 0.00%
Nov 11 12:41 | 4312 93.4% | 121.60 2h07m | 52.56 81206 0.00%
Nov 11 12:43 | 4320 93.5% | 121.31 2h05m | 52.69 81206 0.00%
Nov 11 12:46 | 4329 93.6% | 121.31 2h03m | 52.69 81206 0.00%
Nov 11 12:48 | 4332 93.8% | 121.46 2h01m | 52.62 81206 0.00%
Nov 11 12:50 | 4333 93.9% | 121.07 1h59m | 52.79 81206 0.00%
Nov 11 12:52 | 4344 94.0% | 121.08 1h57m | 52.79 81206 0.00%
Nov 11 12:54 | 4348 94.1% | 121.28 1h55m | 52.70 81206 0.00%
Nov 11 12:56 | 4353 94.2% | 120.94 1h52m | 52.85 81206 0.00%
Nov 11 12:58 | 4357 94.3% | 121.50 1h51m | 52.61 81206 0.00%
Nov 11 13:00 | 4365 94.4% | 121.83 1h49m | 52.46 81206 0.00%
Nov 11 13:02 | 4368 94.5% | 120.45 1h46m | 53.06 81206 0.00%
Nov 11 13:04 | 4369 94.6% | 121.01 1h44m | 52.82 81206 0.00%
Nov 11 13:06 | 4372 94.7% | 121.01 1h42m | 52.82 81206 0.00%
Nov 11 13:08 | 4377 94.8% | 120.91 1h40m | 52.86 81206 0.00%
Nov 11 13:10 | 4384 94.9% | 121.19 1h38m | 52.74 81206 0.00%
Nov 11 13:12 | 4389 95.0% | 121.69 1h37m | 52.52 81206 0.00%
Nov 11 13:14 | 4392 95.1% | 121.43 1h35m | 52.63 81206 0.00%
Nov 11 13:16 | 4405 95.2% | 121.35 1h33m | 52.67 81206 0.00%
Nov 11 13:18 | 4413 95.3% | 120.98 1h30m | 52.83 81206 0.00%
Nov 11 13:20 | 4417 95.4% | 121.34 1h28m | 52.68 81206 0.00%
Nov 11 13:22 | 4420 95.5% | 121.36 1h26m | 52.67 81206 0.00%
Nov 11 13:24 | 4425 95.6% | 121.60 1h25m | 52.56 81206 0.00%
Nov 11 13:26 | 4428 95.7% | 120.74 1h22m | 52.94 81206 0.00%
Nov 11 13:28 | 4432 95.8% | 121.16 1h20m | 52.75 81206 0.00%
Nov 11 13:30 | 4440 95.9% | 121.01 1h18m | 52.82 81206 0.00%
Nov 11 13:32 | 4444 96.0% | 126.42 1h20m | 50.56 81206 0.00%
Nov 11 13:34 | 4449 96.1% | 121.13 1h14m | 52.77 81206 0.00%
Nov 11 13:36 | 4452 96.2% | 120.68 1h12m | 52.96 81206 0.00%
Nov 11 13:38 | 4453 96.4% | 120.97 1h10m | 52.83 81206 0.00%
Nov 11 13:40 | 4465 96.5% | 120.49 1h08m | 53.04 81206 0.00%
Nov 11 13:42 | 4468 96.6% | 120.95 1h06m | 52.84 81206 0.00%
Nov 11 13:44 | 4473 96.7% | 120.54 1h04m | 53.02 81206 0.00%
Nov 11 13:46 | 4477 96.8% | 120.58 1h02m | 53.01 81206 0.00%
Nov 11 13:48 | 4480 96.9% | 115.45 57m44s | 55.36 81206 0.00%
Nov 11 13:50 | 4488 97.0% | 124.67 1h00m | 51.27 81206 0.00%
Nov 11 13:52 | 4489 97.1% | 137.67 1h04m | 46.43 81206 0.00%
Nov 11 13:54 | 4497 97.2% | 121.25 54m34s | 52.71 81206 0.00%
Nov 11 13:56 | 4500 97.3% | 121.54 52m40s | 52.59 81206 0.00%
Nov 11 13:59 | 4504 97.4% | 121.20 50m30s | 52.73 81206 0.00%
Nov 11 14:01 | 4509 97.5% | 121.41 48m34s | 52.64 81206 0.00%
Nov 11 14:03 | 4512 97.6% | 121.61 46m37s | 52.56 81206 0.00%
Nov 11 14:05 | 4524 97.7% | 121.62 44m36s | 52.55 81206 0.00%
Nov 11 14:07 | 4528 97.8% | 119.93 41m59s | 53.29 81206 0.00%
Nov 11 14:09 | 4533 97.9% | 121.70 40m34s | 52.52 81206 0.00%
Nov 11 14:11 | 4537 98.0% | 121.18 38m22s | 52.74 81206 0.00%
Nov 11 14:13 | 4540 98.1% | 121.05 36m19s | 52.80 81206 0.00%
Nov 11 14:15 | 4545 98.2% | 120.78 34m13s | 52.92 81206 0.00%
Nov 11 14:17 | 4549 98.3% | 121.30 32m21s | 52.69 81206 0.00%
Nov 11 14:18 | 4552 98.4% | 103.62 25m54s | 61.68 81206 0.00%
Nov 11 14:20 | 4557 98.5% | 120.86 28m12s | 52.88 81206 0.00%
Nov 11 14:22 | 4560 98.6% | 122.73 26m35s | 52.08 81206 0.00%
Nov 11 14:25 | 4564 98.8% | 140.47 28m06s | 45.50 81206 0.00%
Nov 11 14:27 | 4572 98.9% | 124.62 22m51s | 51.29 81206 0.00%
Nov 11 14:29 | 4573 99.0% | 124.82 20m48s | 51.21 81206 0.00%
Nov 11 14:31 | 4584 99.1% | 123.51 18m32s | 51.75 81206 0.00%
Nov 11 14:33 | 4585 99.2% | 123.25 16m26s | 51.86 81206 0.00%
Nov 11 14:35 | 4588 99.3% | 140.69 16m25s | 45.43 81206 0.00%
Nov 11 14:37 | 4593 99.4% | 120.95 12m06s | 52.84 81206 0.00%
Nov 11 14:39 | 4600 99.5% | 121.27 10m06s | 52.70 81206 0.00%
Nov 11 14:41 | 4605 99.6% | 120.46 8m02s | 53.06 81206 0.00%
Nov 11 14:43 | 4608 99.7% | 121.06 6m03s | 52.80 81206 0.00%
Nov 11 14:45 | 4609 99.8% | 120.33 4m01s | 53.12 81206 0.00%
Nov 11 14:48 | 4612 99.9% | 120.68 2m01s | 52.96 81206 0.00%
Nov 11 14:50 | 4617 100.0% | 121.01 0m00s | 52.82 81206 0.00%
no factor for M215503787 from 2^76 to 2^77 [mfakto 0.16.0-beta.5-Win cl_barrett15_82_gs_2]
tf(): time spent since restart: 6h 38m 27.131s
estimated total time spent: 2d 8h 55m 18.265s
ERROR: get_next_assignment(): no valid assignment found in "worktodo.txt"
2026-11-11 14:50:02 (14968): mfakto.exe exited; CPU time 17.343750
2026-11-11 14:50:02 (14968): called boinc_finish(0)
</stderr_txt>
]]>
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