Task 55755390
| Name | TF_76-77_174-176M_wu_28979_2 |
| Workunit | 49959746 |
| Created | 25 May 2026, 22:02:28 UTC |
| Sent | 25 May 2026, 22:26:46 UTC |
| Report deadline | 31 May 2026, 22:26:46 UTC |
| Received | 26 May 2026, 2:56:26 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 7 sec |
| CPU time | 10 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 11,767.82 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 146.15 MB |
| Peak swap size | 465.71 MB |
| Peak disk usage | 4.96 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>
2026-05-26 05:49:32 (33372): wrapper (7.24.26018): starting
2026-05-26 05:49:33 (33372): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-26 05:49:33 (33372): wrapper: created child process 29088
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=175644979 bit_min=76 bit_max=77 (87.13 GHz-days)
Starting trial factoring M175644979 from 2^76 to 2^77 (87.13 GHz-days)
k_min = 215086887638700
k_max = 430173775282892
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 26 05:49 | 0 0.1% | 4.066 1h04m | 1928.63 82485 n.a.%
May 26 05:49 | 5 0.2% | 4.088 1h05m | 1918.25 82485 n.a.%
May 26 05:49 | 9 0.3% | 4.085 1h05m | 1919.66 82485 n.a.%
May 26 05:49 | 12 0.4% | 4.186 1h06m | 1873.34 82485 n.a.%
May 26 05:49 | 17 0.5% | 3.927 1h02m | 1996.90 82485 n.a.%
May 26 05:49 | 20 0.6% | 4.122 1h05m | 1902.43 82485 n.a.%
May 26 05:50 | 21 0.7% | 4.059 1h04m | 1931.96 82485 n.a.%
May 26 05:50 | 24 0.8% | 4.068 1h04m | 1927.68 82485 n.a.%
May 26 05:50 | 29 0.9% | 4.136 1h05m | 1895.99 82485 n.a.%
May 26 05:50 | 36 1.0% | 4.210 1h06m | 1862.66 82485 n.a.%
May 26 05:50 | 41 1.1% | 4.132 1h05m | 1897.83 82485 n.a.%
May 26 05:50 | 44 1.2% | 4.111 1h04m | 1907.52 82485 n.a.%
May 26 05:50 | 45 1.4% | 4.118 1h05m | 1904.28 82485 n.a.%
May 26 05:50 | 56 1.5% | 4.126 1h05m | 1900.59 82485 n.a.%
May 26 05:50 | 57 1.6% | 4.017 1h03m | 1952.16 82485 n.a.%
May 26 05:50 | 65 1.7% | 4.131 1h05m | 1898.28 82485 n.a.%
May 26 05:50 | 69 1.8% | 4.127 1h04m | 1900.12 82485 n.a.%
May 26 05:50 | 72 1.9% | 4.198 1h05m | 1867.99 82485 n.a.%
May 26 05:50 | 77 2.0% | 4.083 1h04m | 1920.60 82485 n.a.%
May 26 05:50 | 80 2.1% | 4.070 1h03m | 1926.74 82485 n.a.%
May 26 05:51 | 84 2.2% | 4.121 1h04m | 1902.89 82485 n.a.%
May 26 05:51 | 89 2.3% | 4.130 1h04m | 1898.74 82485 n.a.%
May 26 05:51 | 96 2.4% | 4.194 1h05m | 1869.77 82485 n.a.%
May 26 05:51 | 101 2.5% | 4.093 1h03m | 1915.91 82485 n.a.%
May 26 05:51 | 104 2.6% | 4.114 1h04m | 1906.13 82485 n.a.%
May 26 05:51 | 105 2.7% | 4.197 1h05m | 1868.43 82485 n.a.%
May 26 05:51 | 117 2.8% | 4.195 1h05m | 1869.32 82485 n.a.%
May 26 05:51 | 120 2.9% | 4.132 1h04m | 1897.83 82485 n.a.%
May 26 05:51 | 129 3.0% | 4.101 1h03m | 1912.17 82485 n.a.%
May 26 05:51 | 132 3.1% | 4.144 1h04m | 1892.33 82485 n.a.%
May 26 05:51 | 140 3.2% | 4.132 1h03m | 1897.83 82485 n.a.%
May 26 05:51 | 141 3.3% | 4.120 1h03m | 1903.35 82485 n.a.%
May 26 05:51 | 149 3.4% | 4.197 1h04m | 1868.43 82485 n.a.%
May 26 05:51 | 152 3.5% | 4.121 1h03m | 1902.89 82485 n.a.%
May 26 05:51 | 156 3.6% | 4.175 1h04m | 1878.28 82485 n.a.%
May 26 05:52 | 161 3.8% | 4.145 1h03m | 1891.87 82485 n.a.%
May 26 05:52 | 164 3.9% | 4.164 1h04m | 1883.24 82485 n.a.%
May 26 05:52 | 176 4.0% | 4.054 1h02m | 1934.34 82485 n.a.%
May 26 05:52 | 177 4.1% | 4.133 1h03m | 1897.37 82485 n.a.%
May 26 05:52 | 185 4.2% | 4.078 1h02m | 1922.96 82485 n.a.%
May 26 05:52 | 189 4.3% | 4.186 1h04m | 1873.34 82485 n.a.%
May 26 05:52 | 192 4.4% | 4.115 1h02m | 1905.67 82485 n.a.%
May 26 05:52 | 197 4.5% | 4.114 1h02m | 1906.13 82485 n.a.%
May 26 05:52 | 201 4.6% | 4.095 1h02m | 1914.97 82485 n.a.%
May 26 05:52 | 204 4.7% | 4.067 1h02m | 1928.16 82485 n.a.%
May 26 05:52 | 209 4.8% | 4.111 1h02m | 1907.52 82485 n.a.%
May 26 05:52 | 212 4.9% | 4.106 1h02m | 1909.84 82485 n.a.%
May 26 05:52 | 216 5.0% | 4.125 1h02m | 1901.05 82485 n.a.%
May 26 05:52 | 225 5.1% | 4.116 1h02m | 1905.20 82485 n.a.%
May 26 05:53 | 236 5.2% | 4.128 1h02m | 1899.66 82485 n.a.%
May 26 05:53 | 237 5.3% | 4.103 1h02m | 1911.24 82485 n.a.%
May 26 05:53 | 240 5.4% | 4.191 1h03m | 1871.11 82485 n.a.%
May 26 05:53 | 245 5.5% | 4.135 1h02m | 1896.45 82485 n.a.%
May 26 05:53 | 252 5.6% | 4.130 1h02m | 1898.74 82485 n.a.%
May 26 05:53 | 260 5.7% | 4.031 1h00m | 1945.38 82485 n.a.%
May 26 05:53 | 261 5.8% | 4.068 1h01m | 1927.68 82485 n.a.%
May 26 05:53 | 264 5.9% | 4.080 1h01m | 1922.01 82485 n.a.%
May 26 05:53 | 269 6.0% | 4.117 1h01m | 1904.74 82485 n.a.%
May 26 05:53 | 272 6.1% | 4.176 1h02m | 1877.83 82485 n.a.%
May 26 05:53 | 276 6.2% | 4.061 1h00m | 1931.01 82485 n.a.%
May 26 05:53 | 281 6.4% | 4.035 1h00m | 1943.45 82485 n.a.%
May 26 05:53 | 285 6.5% | 4.101 1h01m | 1912.17 82485 n.a.%
May 26 05:53 | 296 6.6% | 4.169 1h02m | 1880.98 82485 n.a.%
May 26 05:53 | 297 6.7% | 4.230 1h03m | 1853.86 82485 n.a.%
May 26 05:54 | 300 6.8% | 4.153 1h01m | 1888.23 82485 n.a.%
May 26 05:54 | 309 6.9% | 4.080 1h00m | 1922.01 82485 n.a.%
May 26 05:54 | 317 7.0% | 4.160 1h01m | 1885.05 82485 n.a.%
May 26 05:54 | 320 7.1% | 4.118 1h01m | 1904.28 82485 n.a.%
May 26 05:54 | 321 7.2% | 4.063 1h00m | 1930.06 82485 n.a.%
May 26 05:54 | 324 7.3% | 4.030 59m47s | 1945.86 82485 n.a.%
May 26 05:54 | 329 7.4% | 4.172 1h01m | 1879.63 82485 n.a.%
May 26 05:54 | 332 7.5% | 4.109 1h00m | 1908.45 82485 n.a.%
May 26 05:54 | 336 7.6% | 4.057 59m59s | 1932.91 82485 n.a.%
x mod p out of range!! x = 1098966, p = 48291, pinv = 89176, r = 1050675
May 26 05:54 | 341 7.7% | 1.373 20m16s | 5711.45 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-26 05:54:38 (33372): mfaktc-win-64.exe exited; CPU time 10.203125
2026-05-26 05:54:38 (33372): app exit status: 0x1
2026-05-26 05:54:38 (33372): called boinc_finish(195)
</stderr_txt>
]]>
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