Task 59308430
| Name | TF_76-77_190-206M_wu_3890_0 |
| Workunit | 53255362 |
| Created | 22 Sep 2026, 21:00:43 UTC |
| Sent | 24 Sep 2026, 15:11:27 UTC |
| Report deadline | 30 Sep 2026, 15:11:27 UTC |
| Received | 1 Oct 2026, 15:02:21 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 250056 |
| Run time | 51 sec |
| CPU time | 1 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 249.65 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 115.04 MB |
| Peak swap size | 253.75 MB |
| Peak disk usage | 5.21 MB |
Stderr output
<core_client_version>8.2.8</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
(0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
tarting
2026-09-29 23:40:03 (29416): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-29 23:40:03 (29416): wrapper: created child process 5380
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 1936
no factors found so far.
previous work took 121535187 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 29 23:40 | 1944 42.1% | 44.801 6h55m | 150.52 82485 n.a.%
Sep 29 23:41 | 1945 42.2% | 67.475 10h24m | 99.94 82485 n.a.%
Sep 29 23:43 | 1956 42.3% | 65.455 10h04m | 103.03 82485 n.a.%
Sep 29 23:43 | 1957 42.4% | 45.113 6h55m | 149.48 82485 n.a.%
Sep 29 23:44 | 1965 42.5% | 65.551 10h03m | 102.87 82485 n.a.%
Sep 29 23:45 | 1972 42.6% | 45.100 6h54m | 149.52 82485 n.a.%
Sep 29 23:46 | 1977 42.7% | 45.297 6h55m | 148.87 82485 n.a.%
2026-09-30 00:09:55 (23080): wrapper (7.24.26018): starting
2026-09-30 00:09:55 (23080): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 00:09:55 (23080): wrapper: created child process 3536
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 1977
no factors found so far.
previous work took 121913979 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 00:11 | 1980 42.8% | 65.125 9h55m | 103.55 82485 n.a.%
Sep 30 00:12 | 1981 42.9% | 65.948 10h02m | 102.26 82485 n.a.%
Sep 30 00:13 | 1984 43.0% | 86.258 13h06m | 78.18 82485 n.a.%
Sep 30 00:14 | 1989 43.1% | 65.383 9h54m | 103.14 82485 n.a.%
Sep 30 00:16 | 1992 43.2% | 88.624 13h25m | 76.09 82485 n.a.%
Sep 30 00:16 | 1996 43.3% | 45.048 6h48m | 149.70 82485 n.a.%
2026-09-30 00:52:06 (33188): wrapper (7.24.26018): starting
2026-09-30 00:52:06 (33188): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 00:52:06 (33188): wrapper: created child process 33908
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 1992
no factors found so far.
previous work took 122285317 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 00:53 | 1996 43.3% | 65.068 9h49m | 103.64 82485 n.a.%
Sep 30 00:55 | 2001 43.4% | 107.61 16h13m | 62.67 82485 n.a.%
Sep 30 00:56 | 2005 43.5% | 65.111 9h48m | 103.57 82485 n.a.%
Sep 30 00:57 | 2016 43.6% | 67.379 10h07m | 100.08 82485 n.a.%
Sep 30 00:58 | 2017 43.8% | 65.498 9h49m | 102.96 82485 n.a.%
2026-09-30 10:10:57 (25988): wrapper (7.24.26018): starting
2026-09-30 10:10:57 (25988): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 10:10:57 (25988): wrapper: created child process 30624
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2017
no factors found so far.
previous work took 122655981 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 10:11 | 2020 43.9% | 44.875 6h43m | 150.27 82485 n.a.%
Sep 30 10:12 | 2029 44.0% | 65.042 9h43m | 103.68 82485 n.a.%
Sep 30 10:13 | 2040 44.1% | 45.213 6h44m | 149.15 82485 n.a.%
Sep 30 10:14 | 2041 44.2% | 45.327 6h44m | 148.77 82485 n.a.%
Sep 30 10:15 | 2044 44.3% | 45.347 6h44m | 148.71 82485 n.a.%
Sep 30 10:15 | 2049 44.4% | 45.352 6h43m | 148.69 82485 n.a.%
Sep 30 10:16 | 2052 44.5% | 45.391 6h43m | 148.57 82485 n.a.%
2026-09-30 10:20:43 (32564): wrapper (7.24.26018): starting
2026-09-30 10:20:43 (32564): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 10:20:43 (32564): wrapper: created child process 38492
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2049
no factors found so far.
previous work took 122947137 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 10:21 | 2052 44.5% | 44.932 6h39m | 150.08 82485 n.a.%
Sep 30 10:22 | 2056 44.6% | 68.395 10h06m | 98.60 82485 n.a.%
Sep 30 10:23 | 2061 44.7% | 45.171 6h39m | 149.29 82485 n.a.%
Sep 30 10:24 | 2064 44.8% | 45.230 6h39m | 149.09 82485 n.a.%
Sep 30 10:24 | 2065 44.9% | 45.444 6h40m | 148.39 82485 n.a.%
Sep 30 10:25 | 2076 45.0% | 46.296 6h47m | 145.66 82485 n.a.%
Sep 30 10:26 | 2077 45.1% | 45.515 6h39m | 148.16 82485 n.a.%
Sep 30 10:27 | 2080 45.2% | 45.320 6h37m | 148.80 82485 n.a.%
Sep 30 10:27 | 2085 45.3% | 45.322 6h36m | 148.79 82485 n.a.%
Sep 30 10:28 | 2089 45.4% | 45.342 6h35m | 148.73 82485 n.a.%
Sep 30 10:29 | 2097 45.5% | 45.352 6h35m | 148.69 82485 n.a.%
Sep 30 10:30 | 2100 45.6% | 65.156 9h26m | 103.50 82485 n.a.%
Sep 30 10:31 | 2101 45.7% | 45.203 6h32m | 149.18 82485 n.a.%
Sep 30 10:32 | 2104 45.8% | 45.321 6h32m | 148.79 82485 n.a.%
Sep 30 10:32 | 2112 45.9% | 45.329 6h32m | 148.77 82485 n.a.%
Sep 30 10:33 | 2121 46.0% | 45.341 6h31m | 148.73 82485 n.a.%
2026-09-30 10:49:24 (36376): wrapper (7.24.26018): starting
2026-09-30 10:49:24 (36376): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 10:49:24 (36376): wrapper: created child process 35592
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2121
no factors found so far.
previous work took 123715806 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 10:50 | 2124 46.1% | 64.859 9h18m | 103.97 82485 n.a.%
Sep 30 10:51 | 2140 46.2% | 44.905 6h26m | 150.17 82485 n.a.%
Sep 30 10:52 | 2145 46.4% | 45.053 6h26m | 149.68 82485 n.a.%
Sep 30 10:53 | 2149 46.5% | 65.312 9h19m | 103.25 82485 n.a.%
Sep 30 10:53 | 2152 46.6% | 45.114 6h25m | 149.48 82485 n.a.%
Sep 30 10:54 | 2157 46.7% | 66.664 9h28m | 101.16 82485 n.a.%
Sep 30 10:55 | 2160 46.8% | 45.206 6h25m | 149.17 82485 n.a.%
2026-09-30 11:34:21 (3632): wrapper (7.24.26018): starting
2026-09-30 11:34:21 (3632): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 11:34:21 (3632): wrapper: created child process 15128
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2157
no factors found so far.
previous work took 124047713 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 11:35 | 2160 46.8% | 44.799 6h21m | 150.53 82485 n.a.%
Sep 30 11:36 | 2161 46.9% | 66.161 9h22m | 101.93 82485 n.a.%
Sep 30 11:37 | 2164 47.0% | 45.162 6h23m | 149.32 82485 n.a.%
Sep 30 11:38 | 2176 47.1% | 65.303 9h12m | 103.27 82485 n.a.%
Sep 30 11:39 | 2181 47.2% | 65.178 9h10m | 103.46 82485 n.a.%
Sep 30 11:39 | 2184 47.3% | 45.424 6h23m | 148.46 82485 n.a.%
2026-09-30 14:22:30 (38292): wrapper (7.24.26018): starting
2026-09-30 14:22:30 (38292): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 14:22:30 (38292): wrapper: created child process 3768
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2181
no factors found so far.
previous work took 124334316 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 14:23 | 2184 47.3% | 44.781 6h17m | 150.59 82485 n.a.%
Sep 30 14:24 | 2185 47.4% | 87.033 12h12m | 77.48 82485 n.a.%
Sep 30 14:25 | 2196 47.5% | 44.944 6h17m | 150.04 82485 n.a.%
Sep 30 14:26 | 2197 47.6% | 45.352 6h20m | 148.69 82485 n.a.%
Sep 30 14:27 | 2205 47.7% | 46.543 6h29m | 144.89 82485 n.a.%
Sep 30 14:27 | 2209 47.8% | 45.361 6h18m | 148.66 82485 n.a.%
Sep 30 14:28 | 2212 47.9% | 45.376 6h18m | 148.61 82485 n.a.%
2026-09-30 14:53:38 (32320): wrapper (7.24.26018): starting
2026-09-30 14:53:38 (32320): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 14:53:39 (32320): wrapper: created child process 36604
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2209
no factors found so far.
previous work took 124648330 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 14:54 | 2212 47.9% | 44.867 6h13m | 150.30 82485 n.a.%
Sep 30 14:55 | 2217 48.0% | 68.453 9h29m | 98.51 82485 n.a.%
Sep 30 14:56 | 2220 48.1% | 45.200 6h15m | 149.19 82485 n.a.%
2026-09-30 15:02:02 (41700): wrapper (7.24.26018): starting
2026-09-30 15:02:02 (41700): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 15:02:02 (41700): wrapper: created child process 33756
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2217
no factors found so far.
previous work took 124761650 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 15:02 | 2220 48.1% | 44.912 6h12m | 150.15 82485 n.a.%
Sep 30 15:03 | 2229 48.2% | 66.408 9h10m | 101.55 82485 n.a.%
Sep 30 15:04 | 2232 48.3% | 45.277 6h14m | 148.94 82485 n.a.%
Sep 30 15:05 | 2236 48.4% | 45.390 6h14m | 148.57 82485 n.a.%
Sep 30 15:06 | 2241 48.5% | 66.717 9h09m | 101.08 82485 n.a.%
Sep 30 15:07 | 2244 48.6% | 65.157 8h55m | 103.50 82485 n.a.%
Sep 30 15:08 | 2245 48.8% | 45.377 6h12m | 148.61 82485 n.a.%
2026-09-30 15:41:02 (32276): wrapper (7.24.26018): starting
2026-09-30 15:41:02 (32276): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 15:41:02 (32276): wrapper: created child process 35132
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2244
no factors found so far.
previous work took 125095511 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 15:41 | 2245 48.8% | 44.801 6h07m | 150.52 82485 n.a.%
Sep 30 15:42 | 2260 48.9% | 44.977 6h08m | 149.93 82485 n.a.%
Sep 30 15:43 | 2265 49.0% | 45.334 6h10m | 148.75 82485 n.a.%
Sep 30 15:44 | 2269 49.1% | 67.198 9h07m | 100.35 82485 n.a.%
Sep 30 15:45 | 2272 49.2% | 65.423 8h52m | 103.08 82485 n.a.%
Sep 30 15:46 | 2280 49.3% | 45.361 6h08m | 148.66 82485 n.a.%
Sep 30 15:47 | 2281 49.4% | 65.171 8h47m | 103.47 82485 n.a.%
2026-09-30 16:25:58 (41436): wrapper (7.24.26018): starting
2026-09-30 16:25:58 (41436): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 16:25:58 (41436): wrapper: created child process 41224
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2281
no factors found so far.
previous work took 125473776 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 16:26 | 2289 49.5% | 44.918 6h03m | 150.13 82485 n.a.%
Sep 30 16:27 | 2292 49.6% | 65.231 8h46m | 103.38 82485 n.a.%
2026-09-30 17:11:24 (32136): wrapper (7.24.26018): starting
2026-09-30 17:11:24 (32136): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 17:11:24 (32136): wrapper: created child process 34612
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2292
no factors found so far.
previous work took 125583925 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 17:12 | 2296 49.7% | 44.792 6h00m | 150.55 82485 n.a.%
Sep 30 17:12 | 2304 49.8% | 45.743 6h07m | 147.42 82485 n.a.%
Sep 30 17:13 | 2316 49.9% | 45.203 6h02m | 149.18 82485 n.a.%
Sep 30 17:14 | 2317 50.0% | 45.332 6h02m | 148.76 82485 n.a.%
Sep 30 17:15 | 2320 50.1% | 45.330 6h01m | 148.77 82485 n.a.%
Sep 30 17:15 | 2325 50.2% | 45.363 6h01m | 148.66 82485 n.a.%
2026-09-30 17:47:09 (22928): wrapper (7.24.26018): starting
2026-09-30 17:47:09 (22928): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 17:47:09 (22928): wrapper: created child process 39596
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2325
no factors found so far.
previous work took 125855688 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 17:47 | 2329 50.3% | 44.893 5h56m | 150.21 82485 n.a.%
Sep 30 17:49 | 2332 50.4% | 105.60 13h57m | 63.86 82485 n.a.%
Sep 30 17:50 | 2337 50.5% | 68.170 8h59m | 98.92 82485 n.a.%
Sep 30 17:51 | 2341 50.6% | 65.312 8h35m | 103.25 82485 n.a.%
Sep 30 17:52 | 2344 50.7% | 45.176 5h56m | 149.27 82485 n.a.%
Sep 30 17:53 | 2349 50.8% | 45.339 5h56m | 148.74 82485 n.a.%
Sep 30 18:17 | 2352 50.9% | 1423.3 7d18h | 4.74 82485 n.a.%
Sep 30 18:17 | 2364 51.0% | 44.800 5h50m | 150.52 82485 n.a.%
Sep 30 18:18 | 2365 51.1% | 44.966 5h51m | 149.97 82485 n.a.%
Sep 30 18:19 | 2376 51.2% | 45.157 5h52m | 149.33 82485 n.a.%
Sep 30 18:20 | 2377 51.4% | 65.539 8h30m | 102.89 82485 n.a.%
Sep 30 18:21 | 2380 51.5% | 45.009 5h49m | 149.83 82485 n.a.%
Sep 30 18:22 | 2385 51.6% | 45.230 5h50m | 149.09 82485 n.a.%
Sep 30 18:22 | 2392 51.7% | 45.206 5h49m | 149.17 82485 n.a.%
Sep 30 18:23 | 2397 51.8% | 45.279 5h49m | 148.93 82485 n.a.%
2026-09-30 18:52:26 (33660): wrapper (7.24.26018): starting
2026-09-30 18:52:26 (33660): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 18:52:26 (33660): wrapper: created child process 12032
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2397
no factors found so far.
previous work took 128034673 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 18:53 | 2401 51.9% | 44.814 5h45m | 150.48 82485 n.a.%
Sep 30 18:53 | 2404 52.0% | 44.983 5h45m | 149.91 82485 n.a.%
Sep 30 18:55 | 2409 52.1% | 86.678 11h04m | 77.80 82485 n.a.%
Sep 30 18:56 | 2412 52.2% | 45.051 5h44m | 149.69 82485 n.a.%
Sep 30 18:56 | 2416 52.3% | 45.212 5h45m | 149.15 82485 n.a.%
Sep 30 18:57 | 2421 52.4% | 45.208 5h44m | 149.17 82485 n.a.%
Sep 30 18:58 | 2425 52.5% | 45.277 5h44m | 148.94 82485 n.a.%
Sep 30 18:59 | 2436 52.6% | 45.268 5h43m | 148.97 82485 n.a.%
2026-09-30 21:00:11 (41772): wrapper (7.24.26018): starting
2026-09-30 21:00:11 (41772): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 21:00:11 (41772): wrapper: created child process 37500
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2425
no factors found so far.
previous work took 128391896 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 21:01 | 2436 52.6% | 64.798 8h11m | 104.07 82485 n.a.%
2026-09-30 21:12:34 (34664): wrapper (7.24.26018): starting
2026-09-30 21:12:34 (34664): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 21:12:34 (34664): wrapper: created child process 38692
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2436
no factors found so far.
previous work took 128456694 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 21:13 | 2437 52.7% | 44.770 5h38m | 150.63 82485 n.a.%
Sep 30 21:14 | 2440 52.8% | 66.230 8h20m | 101.82 82485 n.a.%
Sep 30 21:15 | 2449 52.9% | 45.004 5h39m | 149.84 82485 n.a.%
Sep 30 21:15 | 2457 53.0% | 45.083 5h38m | 149.58 82485 n.a.%
Sep 30 21:16 | 2460 53.1% | 45.192 5h38m | 149.22 82485 n.a.%
Sep 30 21:17 | 2461 53.2% | 67.599 8h25m | 99.76 82485 n.a.%
Sep 30 21:18 | 2464 53.3% | 45.369 5h38m | 148.64 82485 n.a.%
Sep 30 21:23 | 2469 53.4% | 279.33 1d10h | 24.14 82485 n.a.%
Sep 30 21:24 | 2472 53.5% | 44.925 5h33m | 150.11 82485 n.a.%
Sep 30 21:24 | 2476 53.6% | 45.329 5h36m | 148.77 82485 n.a.%
Sep 30 21:25 | 2481 53.8% | 45.332 5h35m | 148.76 82485 n.a.%
Sep 30 21:26 | 2484 53.9% | 45.272 5h34m | 148.96 82485 n.a.%
Sep 30 21:27 | 2485 54.0% | 45.294 5h33m | 148.88 82485 n.a.%
Sep 30 21:27 | 2496 54.1% | 45.333 5h33m | 148.76 82485 n.a.%
Sep 30 21:28 | 2497 54.2% | 45.303 5h32m | 148.85 82485 n.a.%
2026-09-30 21:49:05 (18756): wrapper (7.24.26018): starting
2026-09-30 21:49:05 (18756): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 21:49:05 (18756): wrapper: created child process 38208
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2496
no factors found so far.
previous work took 129366754 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 21:49 | 2497 54.2% | 44.801 5h28m | 150.52 82485 n.a.%
Sep 30 21:50 | 2500 54.3% | 45.122 5h30m | 149.45 82485 n.a.%
Sep 30 21:51 | 2505 54.4% | 45.372 5h31m | 148.63 82485 n.a.%
Sep 30 21:52 | 2509 54.5% | 64.589 7h50m | 104.41 82485 n.a.%
Sep 30 21:53 | 2512 54.6% | 45.286 5h29m | 148.91 82485 n.a.%
Sep 30 21:53 | 2517 54.7% | 45.374 5h28m | 148.62 82485 n.a.%
Sep 30 21:55 | 2520 54.8% | 65.255 7h52m | 103.34 82485 n.a.%
Sep 30 21:55 | 2524 54.9% | 45.379 5h27m | 148.60 82485 n.a.%
2026-09-30 22:19:01 (16056): wrapper (7.24.26018): starting
2026-09-30 22:19:01 (16056): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-30 22:19:01 (16056): wrapper: created child process 23776
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2520
no factors found so far.
previous work took 129722553 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 30 22:19 | 2524 54.9% | 44.840 5h23m | 150.39 82485 n.a.%
Sep 30 22:20 | 2541 55.0% | 66.422 7h58m | 101.53 82485 n.a.%
Sep 30 22:21 | 2544 55.1% | 45.086 5h23m | 149.57 82485 n.a.%
Sep 30 22:22 | 2545 55.2% | 45.349 5h25m | 148.70 82485 n.a.%
Sep 30 22:23 | 2556 55.3% | 45.351 5h24m | 148.70 82485 n.a.%
Sep 30 22:24 | 2560 55.4% | 66.324 7h53m | 101.68 82485 n.a.%
Sep 30 22:25 | 2569 55.5% | 65.670 7h47m | 102.69 82485 n.a.%
2026-10-01 00:06:08 (19640): wrapper (7.24.26018): starting
2026-10-01 00:06:08 (19640): wrapper: running mfaktc-win-64.exe (-d 0)
2026-10-01 00:06:08 (19640): wrapper: created child process 31260
mfaktc v0.24.0 (64-bit build)
Compile-time options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32 kiB
SIEVE_SIZE 193154 bits
SIEVE_SPLIT 250
MORE_CLASSES enabled
Runtime options
SievePrimes 25000
SievePrimesAdjust 1
SievePrimesMin 5000
SievePrimesMax 100000
NumStreams 3
CPUStreams 3
GridSize 3
GPU sieving enabled
GPUSievePrimes 82486
GPUSieveSize 512 Mib
GPUSieveProcessSize 16 Kib
Checkpoints enabled
CheckpointDelay 60 s
WorkFileAddDelay 600 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 13.0
CUDA device info
name NVIDIA GeForce GT 1030
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 3
clock rate (CUDA cores) 1468 MHz
memory clock rate: 3004 MHz
memory bus width: 64 bits
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=204251759 bit_min=76 bit_max=77 (74.93 GHz-days)
Starting trial factoring M204251759 from 2^76 to 2^77 (74.93 GHz-days)
k_min = 184962577790760
k_max = 369925155581716
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 2569
no factors found so far.
previous work took 130101595 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Oct 01 10:01 | 2572 55.6% | 35709 176d01h | 0.19 82485 n.a.%
ERROR: cudaGetLastError() returned 999: unknown error
2026-10-01 10:01:21 (19640): mfaktc-win-64.exe exited; CPU time 1.890625
2026-10-01 10:01:21 (19640): app exit status: 0x1
2026-10-01 10:01:21 (19640): called boinc_finish(195)
</stderr_txt>
]]>
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