Task 55720205
| Name | TF_76-77_163-178M_wu_22435_0 |
| Workunit | 50195921 |
| Created | 24 May 2026, 17:39:47 UTC |
| Sent | 29 May 2026, 23:56:46 UTC |
| Report deadline | 4 Jun 2026, 23:56:46 UTC |
| Received | 30 May 2026, 11:13:43 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 248535 |
| Run time | 3 min 22 sec |
| CPU time | 6 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 11,767.82 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 146.17 MB |
| Peak swap size | 466.07 MB |
| Peak disk usage | 4.95 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>
2026-05-30 14:08:47 (36844): wrapper (7.24.26018): starting
2026-05-30 14:08:47 (36844): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-30 14:08:48 (36844): wrapper: created child process 36856
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=177226787 bit_min=76 bit_max=77 (86.35 GHz-days)
Starting trial factoring M177226787 from 2^76 to 2^77 (86.35 GHz-days)
k_min = 213167165654520
k_max = 426334331310279
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 30 14:08 | 0 0.1% | 4.091 1h05m | 1899.74 82485 n.a.%
May 30 14:08 | 4 0.2% | 4.046 1h04m | 1920.87 82485 n.a.%
May 30 14:09 | 9 0.3% | 4.056 1h04m | 1916.13 82485 n.a.%
May 30 14:09 | 12 0.4% | 4.088 1h05m | 1901.13 82485 n.a.%
May 30 14:09 | 13 0.5% | 4.114 1h05m | 1889.12 82485 n.a.%
May 30 14:09 | 24 0.6% | 4.078 1h04m | 1905.79 82485 n.a.%
May 30 14:09 | 25 0.7% | 4.093 1h05m | 1898.81 82485 n.a.%
May 30 14:09 | 28 0.8% | 4.093 1h04m | 1898.81 82485 n.a.%
May 30 14:09 | 33 0.9% | 4.098 1h04m | 1896.49 82485 n.a.%
May 30 14:09 | 37 1.0% | 4.093 1h04m | 1898.81 82485 n.a.%
May 30 14:09 | 40 1.1% | 4.114 1h05m | 1889.12 82485 n.a.%
May 30 14:09 | 45 1.2% | 4.100 1h04m | 1895.57 82485 n.a.%
May 30 14:09 | 48 1.4% | 4.088 1h04m | 1901.13 82485 n.a.%
May 30 14:09 | 52 1.5% | 4.086 1h04m | 1902.06 82485 n.a.%
May 30 14:09 | 69 1.6% | 4.093 1h04m | 1898.81 82485 n.a.%
May 30 14:09 | 72 1.7% | 4.094 1h04m | 1898.34 82485 n.a.%
May 30 14:09 | 73 1.8% | 4.105 1h04m | 1893.26 82485 n.a.%
May 30 14:10 | 84 1.9% | 4.095 1h04m | 1897.88 82485 n.a.%
May 30 14:10 | 88 2.0% | 4.102 1h04m | 1894.64 82485 n.a.%
May 30 14:10 | 97 2.1% | 4.094 1h04m | 1898.34 82485 n.a.%
May 30 14:10 | 100 2.2% | 4.103 1h04m | 1894.18 82485 n.a.%
May 30 14:10 | 105 2.3% | 4.082 1h03m | 1903.93 82485 n.a.%
May 30 14:10 | 108 2.4% | 4.054 1h03m | 1917.08 82485 n.a.%
May 30 14:10 | 109 2.5% | 4.100 1h03m | 1895.57 82485 n.a.%
May 30 14:10 | 112 2.6% | 4.093 1h03m | 1898.81 82485 n.a.%
May 30 14:10 | 117 2.7% | 4.093 1h03m | 1898.81 82485 n.a.%
May 30 14:10 | 124 2.8% | 4.046 1h02m | 1920.87 82485 n.a.%
May 30 14:10 | 129 2.9% | 4.097 1h03m | 1896.95 82485 n.a.%
May 30 14:10 | 132 3.0% | 4.056 1h02m | 1916.13 82485 n.a.%
May 30 14:10 | 133 3.1% | 4.083 1h03m | 1903.46 82485 n.a.%
May 30 14:10 | 144 3.2% | 4.103 1h03m | 1894.18 82485 n.a.%
May 30 14:11 | 145 3.3% | 4.100 1h03m | 1895.57 82485 n.a.%
May 30 14:11 | 153 3.4% | 4.057 1h02m | 1915.66 82485 n.a.%
May 30 14:11 | 157 3.5% | 4.073 1h02m | 1908.13 82485 n.a.%
May 30 14:11 | 160 3.6% | 4.088 1h03m | 1901.13 82485 n.a.%
May 30 14:11 | 165 3.8% | 4.101 1h03m | 1895.10 82485 n.a.%
May 30 14:11 | 168 3.9% | 4.096 1h03m | 1897.42 82485 n.a.%
May 30 14:11 | 172 4.0% | 4.085 1h02m | 1902.53 82485 n.a.%
May 30 14:11 | 177 4.1% | 4.064 1h02m | 1912.36 82485 n.a.%
May 30 14:11 | 180 4.2% | 4.095 1h02m | 1897.88 82485 n.a.%
May 30 14:11 | 184 4.3% | 4.096 1h02m | 1897.42 82485 n.a.%
May 30 14:11 | 189 4.4% | 4.103 1h02m | 1894.18 82485 n.a.%
May 30 14:11 | 193 4.5% | 4.097 1h02m | 1896.95 82485 n.a.%
May 30 14:11 | 205 4.6% | 4.097 1h02m | 1896.95 82485 n.a.%
May 30 14:11 | 208 4.7% | 4.075 1h02m | 1907.20 82485 n.a.%
May 30 14:11 | 213 4.8% | 4.076 1h02m | 1906.73 82485 n.a.%
May 30 14:12 | 217 4.9% | 4.093 1h02m | 1898.81 82485 n.a.%
May 30 14:12 | 220 5.0% | 4.095 1h02m | 1897.88 82485 n.a.%
x mod p out of range!! x = 270333, p = 60351, pinv = 71318, r = 209982
May 30 14:12 | 228 5.1% | 1.342 20m23s | 5791.23 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-30 14:12:08 (36844): mfaktc-win-64.exe exited; CPU time 6.421875
2026-05-30 14:12:08 (36844): app exit status: 0x1
2026-05-30 14:12:08 (36844): called boinc_finish(195)
</stderr_txt>
]]>
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