Task 55717431
| Name | TF_76-77_163-178M_wu_19667_0 |
| Workunit | 50193153 |
| Created | 24 May 2026, 17:38:34 UTC |
| Sent | 29 May 2026, 9:25:45 UTC |
| Report deadline | 4 Jun 2026, 9:25:45 UTC |
| Received | 29 May 2026, 11:43:42 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 248535 |
| Run time | 5 min 27 sec |
| CPU time | 4 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 11,767.82 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 146.30 MB |
| Peak swap size | 495.15 MB |
| Peak disk usage | 4.97 MB |
Stderr output
<core_client_version>8.2.11</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
(0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2026-05-29 14:21:18 (36952): wrapper (7.24.26018): starting
2026-05-29 14:21:18 (36952): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-29 14:21:18 (36952): wrapper: created child process 1240
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 13.2
CUDA device info
name NVIDIA GeForce RTX 4080 SUPER
compute capability 8.9
max threads per block 1024
max shared memory per MP 102400 bytes
number of multiprocessors 80
clock rate (CUDA cores) 2610 MHz
memory clock rate: 11501 MHz
memory bus width: 256 bits
Automatic parameters
threads per grid 655360
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=177086969 bit_min=76 bit_max=77 (86.42 GHz-days)
Starting trial factoring M177086969 from 2^76 to 2^77 (86.42 GHz-days)
k_min = 213335470563600
k_max = 426670941134659
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 29 14:21 | 0 0.1% | 4.060 1h04m | 1915.75 82485 n.a.%
May 29 14:21 | 7 0.2% | 4.058 1h04m | 1916.70 82485 n.a.%
May 29 14:21 | 12 0.3% | 4.055 1h04m | 1918.12 82485 n.a.%
May 29 14:21 | 16 0.4% | 4.061 1h04m | 1915.28 82485 n.a.%
May 29 14:21 | 19 0.5% | 4.056 1h04m | 1917.64 82485 n.a.%
May 29 14:21 | 24 0.6% | 4.056 1h04m | 1917.64 82485 n.a.%
May 29 14:21 | 27 0.7% | 4.057 1h04m | 1917.17 82485 n.a.%
May 29 14:21 | 31 0.8% | 4.058 1h04m | 1916.70 82485 n.a.%
May 29 14:21 | 39 0.9% | 4.057 1h04m | 1917.17 82485 n.a.%
May 29 14:22 | 40 1.0% | 4.049 1h04m | 1920.96 82485 n.a.%
May 29 14:22 | 51 1.1% | 4.056 1h04m | 1917.64 82485 n.a.%
May 29 14:22 | 52 1.2% | 4.056 1h04m | 1917.64 82485 n.a.%
May 29 14:22 | 55 1.4% | 4.056 1h04m | 1917.64 82485 n.a.%
May 29 14:22 | 60 1.5% | 4.057 1h03m | 1917.17 82485 n.a.%
May 29 14:22 | 67 1.6% | 4.057 1h03m | 1917.17 82485 n.a.%
May 29 14:22 | 72 1.7% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 75 1.8% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 76 1.9% | 4.049 1h03m | 1920.96 82485 n.a.%
May 29 14:22 | 79 2.0% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 84 2.1% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 87 2.2% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 91 2.3% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:22 | 96 2.4% | 4.058 1h03m | 1916.70 82485 n.a.%
May 29 14:22 | 100 2.5% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:23 | 111 2.6% | 4.056 1h03m | 1917.64 82485 n.a.%
May 29 14:23 | 112 2.7% | 4.053 1h03m | 1919.06 82485 n.a.%
May 29 14:23 | 115 2.8% | 4.057 1h03m | 1917.17 82485 n.a.%
May 29 14:23 | 124 2.9% | 4.058 1h03m | 1916.70 82485 n.a.%
May 29 14:23 | 132 3.0% | 4.059 1h02m | 1916.23 82485 n.a.%
May 29 14:23 | 135 3.1% | 4.059 1h02m | 1916.23 82485 n.a.%
May 29 14:23 | 139 3.2% | 4.056 1h02m | 1917.64 82485 n.a.%
May 29 14:23 | 144 3.3% | 4.059 1h02m | 1916.23 82485 n.a.%
May 29 14:23 | 151 3.4% | 4.059 1h02m | 1916.23 82485 n.a.%
May 29 14:23 | 156 3.5% | 4.057 1h02m | 1917.17 82485 n.a.%
May 29 14:23 | 159 3.6% | 4.056 1h02m | 1917.64 82485 n.a.%
May 29 14:23 | 160 3.8% | 4.050 1h02m | 1920.48 82485 n.a.%
May 29 14:23 | 171 3.9% | 4.055 1h02m | 1918.12 82485 n.a.%
May 29 14:23 | 172 4.0% | 4.057 1h02m | 1917.17 82485 n.a.%
May 29 14:23 | 175 4.1% | 4.057 1h02m | 1917.17 82485 n.a.%
May 29 14:24 | 184 4.2% | 4.058 1h02m | 1916.70 82485 n.a.%
May 29 14:24 | 187 4.3% | 4.055 1h02m | 1918.12 82485 n.a.%
May 29 14:24 | 192 4.4% | 4.058 1h02m | 1916.70 82485 n.a.%
May 29 14:24 | 195 4.5% | 4.057 1h02m | 1917.17 82485 n.a.%
May 29 14:24 | 196 4.6% | 4.058 1h01m | 1916.70 82485 n.a.%
May 29 14:24 | 199 4.7% | 4.058 1h01m | 1916.70 82485 n.a.%
May 29 14:24 | 207 4.8% | 4.065 1h01m | 1913.40 82485 n.a.%
May 29 14:24 | 216 4.9% | 4.064 1h01m | 1913.87 82485 n.a.%
May 29 14:24 | 219 5.0% | 4.098 1h02m | 1897.99 82485 n.a.%
May 29 14:24 | 220 5.1% | 4.063 1h01m | 1914.34 82485 n.a.%
May 29 14:24 | 231 5.2% | 4.061 1h01m | 1915.28 82485 n.a.%
May 29 14:24 | 240 5.3% | 4.062 1h01m | 1914.81 82485 n.a.%
May 29 14:24 | 244 5.4% | 4.066 1h01m | 1912.93 82485 n.a.%
May 29 14:24 | 247 5.5% | 4.065 1h01m | 1913.40 82485 n.a.%
May 29 14:24 | 252 5.6% | 4.111 1h02m | 1891.99 82485 n.a.%
May 29 14:25 | 255 5.7% | 4.060 1h01m | 1915.75 82485 n.a.%
May 29 14:25 | 256 5.8% | 4.059 1h01m | 1916.23 82485 n.a.%
May 29 14:25 | 259 5.9% | 4.052 1h00m | 1919.54 82485 n.a.%
May 29 14:25 | 264 6.0% | 4.059 1h01m | 1916.23 82485 n.a.%
May 29 14:25 | 271 6.1% | 4.062 1h01m | 1914.81 82485 n.a.%
2026-05-29 14:37:10 (36252): wrapper (7.24.26018): starting
2026-05-29 14:37:10 (36252): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-29 14:37:10 (36252): wrapper: created child process 9608
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 13.2
CUDA device info
name NVIDIA GeForce RTX 4080 SUPER
compute capability 8.9
max threads per block 1024
max shared memory per MP 102400 bytes
number of multiprocessors 80
clock rate (CUDA cores) 2610 MHz
memory clock rate: 11501 MHz
memory bus width: 256 bits
Automatic parameters
threads per grid 655360
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=177086969 bit_min=76 bit_max=77 (86.42 GHz-days)
Starting trial factoring M177086969 from 2^76 to 2^77 (86.42 GHz-days)
k_min = 213335470563600
k_max = 426670941134659
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 199
no factors found so far.
previous work took 182540 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 29 14:37 | 207 4.8% | 4.060 1h01m | 1915.75 82485 n.a.%
May 29 14:37 | 216 4.9% | 2.605 39m38s | 2985.78 82485 n.a.%
May 29 14:37 | 219 5.0% | 3.278 49m50s | 2372.78 82485 n.a.%
May 29 14:37 | 220 5.1% | 4.140 1h02m | 1878.73 82485 n.a.%
May 29 14:37 | 231 5.2% | 4.119 1h02m | 1888.31 82485 n.a.%
May 29 14:37 | 240 5.3% | 3.567 54m02s | 2180.53 82485 n.a.%
May 29 14:37 | 244 5.4% | 2.601 39m22s | 2990.37 82485 n.a.%
May 29 14:37 | 247 5.5% | 4.055 1h01m | 1918.12 82485 n.a.%
May 29 14:37 | 252 5.6% | 4.117 1h02m | 1889.23 82485 n.a.%
May 29 14:37 | 255 5.7% | 4.118 1h02m | 1888.77 82485 n.a.%
May 29 14:37 | 256 5.8% | 4.131 1h02m | 1882.83 82485 n.a.%
May 29 14:37 | 259 5.9% | 4.111 1h01m | 1891.99 82485 n.a.%
May 29 14:38 | 264 6.0% | 4.133 1h02m | 1881.92 82485 n.a.%
May 29 14:38 | 271 6.1% | 4.123 1h01m | 1886.48 82485 n.a.%
May 29 14:38 | 276 6.2% | 4.125 1h01m | 1885.57 82485 n.a.%
May 29 14:38 | 280 6.4% | 4.117 1h01m | 1889.23 82485 n.a.%
May 29 14:38 | 291 6.5% | 4.101 1h01m | 1896.60 82485 n.a.%
May 29 14:38 | 292 6.6% | 4.116 1h01m | 1889.69 82485 n.a.%
May 29 14:38 | 300 6.7% | 4.119 1h01m | 1888.31 82485 n.a.%
May 29 14:38 | 304 6.8% | 4.128 1h01m | 1884.20 82485 n.a.%
May 29 14:38 | 307 6.9% | 4.128 1h01m | 1884.20 82485 n.a.%
May 29 14:38 | 315 7.0% | 4.105 1h01m | 1894.75 82485 n.a.%
May 29 14:38 | 319 7.1% | 4.112 1h01m | 1891.53 82485 n.a.%
May 29 14:38 | 324 7.2% | 4.120 1h01m | 1887.85 82485 n.a.%
May 29 14:38 | 327 7.3% | 4.114 1h01m | 1890.61 82485 n.a.%
May 29 14:38 | 331 7.4% | 4.115 1h00m | 1890.15 82485 n.a.%
May 29 14:38 | 336 7.5% | 4.113 1h00m | 1891.07 82485 n.a.%
May 29 14:39 | 339 7.6% | 4.124 1h00m | 1886.02 82485 n.a.%
May 29 14:39 | 340 7.7% | 4.114 1h00m | 1890.61 82485 n.a.%
May 29 14:39 | 352 7.8% | 4.113 1h00m | 1891.07 82485 n.a.%
May 29 14:39 | 355 7.9% | 4.124 1h00m | 1886.02 82485 n.a.%
May 29 14:39 | 360 8.0% | 4.121 1h00m | 1887.40 82485 n.a.%
May 29 14:39 | 364 8.1% | 4.115 1h00m | 1890.15 82485 n.a.%
May 29 14:39 | 375 8.2% | 4.130 1h00m | 1883.28 82485 n.a.%
May 29 14:39 | 376 8.3% | 4.115 1h00m | 1890.15 82485 n.a.%
May 29 14:39 | 384 8.4% | 4.119 1h00m | 1888.31 82485 n.a.%
May 29 14:39 | 387 8.5% | 4.120 1h00m | 1887.85 82485 n.a.%
May 29 14:39 | 391 8.6% | 4.111 1h00m | 1891.99 82485 n.a.%
May 29 14:39 | 396 8.8% | 4.117 1h00m | 1889.23 82485 n.a.%
May 29 14:39 | 399 8.9% | 4.101 59m48s | 1896.60 82485 n.a.%
May 29 14:39 | 412 9.0% | 4.110 59m52s | 1892.45 82485 n.a.%
May 29 14:40 | 415 9.1% | 4.114 59m52s | 1890.61 82485 n.a.%
May 29 14:40 | 420 9.2% | 4.107 59m41s | 1893.83 82485 n.a.%
May 29 14:40 | 424 9.3% | 4.128 59m55s | 1884.20 82485 n.a.%
May 29 14:40 | 427 9.4% | 4.113 59m38s | 1891.07 82485 n.a.%
May 29 14:40 | 432 9.5% | 4.115 59m36s | 1890.15 82485 n.a.%
May 29 14:40 | 436 9.6% | 4.128 59m43s | 1884.20 82485 n.a.%
May 29 14:40 | 439 9.7% | 4.118 59m30s | 1888.77 82485 n.a.%
May 29 14:40 | 447 9.8% | 4.124 59m31s | 1886.02 82485 n.a.%
May 29 14:40 | 451 9.9% | 4.115 59m19s | 1890.15 82485 n.a.%
May 29 14:40 | 459 10.0% | 4.110 59m11s | 1892.45 82485 n.a.%
May 29 14:40 | 460 10.1% | 4.113 59m10s | 1891.07 82485 n.a.%
May 29 14:40 | 471 10.2% | 4.108 59m01s | 1893.37 82485 n.a.%
May 29 14:40 | 472 10.3% | 4.120 59m07s | 1887.85 82485 n.a.%
May 29 14:40 | 475 10.4% | 4.119 59m02s | 1888.31 82485 n.a.%
May 29 14:40 | 480 10.5% | 4.122 59m01s | 1886.94 82485 n.a.%
May 29 14:41 | 487 10.6% | 4.136 59m09s | 1880.55 82485 n.a.%
May 29 14:41 | 492 10.7% | 4.115 58m47s | 1890.15 82485 n.a.%
May 29 14:41 | 495 10.8% | 4.113 58m41s | 1891.07 82485 n.a.%
May 29 14:41 | 496 10.9% | 4.120 58m43s | 1887.85 82485 n.a.%
May 29 14:41 | 504 11.0% | 4.114 58m33s | 1890.61 82485 n.a.%
May 29 14:41 | 507 11.1% | 4.124 58m38s | 1886.02 82485 n.a.%
May 29 14:41 | 511 11.2% | 4.117 58m28s | 1889.23 82485 n.a.%
May 29 14:41 | 516 11.4% | 4.109 58m17s | 1892.91 82485 n.a.%
May 29 14:41 | 520 11.5% | 4.125 58m26s | 1885.57 82485 n.a.%
May 29 14:41 | 531 11.6% | 4.120 58m18s | 1887.85 82485 n.a.%
May 29 14:41 | 535 11.7% | 4.112 58m07s | 1891.53 82485 n.a.%
May 29 14:41 | 544 11.8% | 4.114 58m05s | 1890.61 82485 n.a.%
May 29 14:41 | 552 11.9% | 4.120 58m06s | 1887.85 82485 n.a.%
May 29 14:41 | 555 12.0% | 4.108 57m51s | 1893.37 82485 n.a.%
May 29 14:41 | 556 12.1% | 4.116 57m54s | 1889.69 82485 n.a.%
May 29 14:42 | 559 12.2% | 4.123 57m56s | 1886.48 82485 n.a.%
May 29 14:42 | 564 12.3% | 4.128 57m56s | 1884.20 82485 n.a.%
May 29 14:42 | 567 12.4% | 4.112 57m38s | 1891.53 82485 n.a.%
May 29 14:42 | 571 12.5% | 4.128 57m48s | 1884.20 82485 n.a.%
May 29 14:42 | 579 12.6% | 4.121 57m38s | 1887.40 82485 n.a.%
May 29 14:42 | 580 12.7% | 4.124 57m36s | 1886.02 82485 n.a.%
May 29 14:42 | 591 12.8% | 4.121 57m29s | 1887.40 82485 n.a.%
May 29 14:42 | 592 12.9% | 4.105 57m12s | 1894.75 82485 n.a.%
x mod p out of range!! x = 588262, p = 61071, pinv = 70476, r = 527191
May 29 14:42 | 595 13.0% | 2.101 29m14s | 3702.03 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-29 14:42:35 (36252): mfaktc-win-64.exe exited; CPU time 4.343750
2026-05-29 14:42:35 (36252): app exit status: 0x1
2026-05-29 14:42:35 (36252): called boinc_finish(195)
</stderr_txt>
]]>
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