Task 55755136
| Name | TF_76-77_163-178M_wu_3420_1 |
| Workunit | 50176906 |
| Created | 25 May 2026, 21:19:44 UTC |
| Sent | 25 May 2026, 21:26:11 UTC |
| Report deadline | 31 May 2026, 21:26:11 UTC |
| Received | 26 May 2026, 0:39:55 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 59 sec |
| CPU time | 8 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 11,767.82 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 146.18 MB |
| Peak swap size | 466.73 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>
2026-05-26 02:05:47 (31696): wrapper (7.24.26018): starting
2026-05-26 02:05:47 (31696): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-26 02:05:47 (31696): wrapper: created child process 4012
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=163353803 bit_min=76 bit_max=77 (93.69 GHz-days)
Starting trial factoring M163353803 from 2^76 to 2^77 (93.69 GHz-days)
k_min = 231270598962480
k_max = 462541197929223
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 26 02:05 | 0 0.1% | 4.420 1h10m | 1907.66 82485 n.a.%
May 26 02:05 | 1 0.2% | 4.403 1h10m | 1915.02 82485 n.a.%
May 26 02:06 | 12 0.3% | 4.409 1h10m | 1912.42 82485 n.a.%
May 26 02:06 | 16 0.4% | 4.608 1h13m | 1829.83 82485 n.a.%
May 26 02:06 | 21 0.5% | 4.444 1h10m | 1897.36 82485 n.a.%
May 26 02:06 | 25 0.6% | 4.528 1h12m | 1862.16 82485 n.a.%
May 26 02:06 | 28 0.7% | 4.458 1h10m | 1891.40 82485 n.a.%
May 26 02:06 | 33 0.8% | 4.410 1h09m | 1911.99 82485 n.a.%
May 26 02:06 | 36 0.9% | 4.497 1h11m | 1875.00 82485 n.a.%
May 26 02:06 | 37 1.0% | 4.410 1h09m | 1911.99 82485 n.a.%
May 26 02:06 | 40 1.1% | 4.502 1h11m | 1872.91 82485 n.a.%
May 26 02:06 | 45 1.2% | 4.431 1h10m | 1902.92 82485 n.a.%
May 26 02:06 | 52 1.4% | 4.476 1h10m | 1883.79 82485 n.a.%
May 26 02:06 | 60 1.5% | 4.385 1h09m | 1922.89 82485 n.a.%
May 26 02:06 | 61 1.6% | 4.491 1h10m | 1877.50 82485 n.a.%
May 26 02:07 | 72 1.7% | 4.457 1h10m | 1891.82 82485 n.a.%
May 26 02:07 | 73 1.8% | 4.466 1h10m | 1888.01 82485 n.a.%
May 26 02:07 | 81 1.9% | 4.501 1h10m | 1873.33 82485 n.a.%
May 26 02:07 | 85 2.0% | 4.412 1h09m | 1911.12 82485 n.a.%
May 26 02:07 | 88 2.1% | 4.518 1h10m | 1866.28 82485 n.a.%
May 26 02:07 | 93 2.2% | 4.371 1h08m | 1929.04 82485 n.a.%
May 26 02:07 | 96 2.3% | 4.427 1h09m | 1904.64 82485 n.a.%
May 26 02:07 | 100 2.4% | 4.495 1h10m | 1875.83 82485 n.a.%
May 26 02:07 | 105 2.5% | 4.427 1h09m | 1904.64 82485 n.a.%
May 26 02:07 | 108 2.6% | 4.433 1h09m | 1902.06 82485 n.a.%
May 26 02:07 | 117 2.7% | 4.457 1h09m | 1891.82 82485 n.a.%
May 26 02:07 | 120 2.8% | 4.474 1h09m | 1884.63 82485 n.a.%
May 26 02:07 | 121 2.9% | 4.511 1h10m | 1869.18 82485 n.a.%
May 26 02:07 | 133 3.0% | 4.455 1h09m | 1892.67 82485 n.a.%
May 26 02:08 | 136 3.1% | 4.337 1h07m | 1944.17 82485 n.a.%
May 26 02:08 | 141 3.2% | 4.396 1h08m | 1918.07 82485 n.a.%
May 26 02:08 | 148 3.3% | 4.455 1h08m | 1892.67 82485 n.a.%
May 26 02:08 | 157 3.4% | 4.400 1h07m | 1916.33 82485 n.a.%
May 26 02:08 | 165 3.5% | 4.345 1h07m | 1940.59 82485 n.a.%
May 26 02:08 | 168 3.6% | 4.337 1h06m | 1944.17 82485 n.a.%
May 26 02:08 | 172 3.8% | 4.382 1h07m | 1924.20 82485 n.a.%
May 26 02:08 | 177 3.9% | 4.476 1h08m | 1883.79 82485 n.a.%
May 26 02:08 | 180 4.0% | 4.538 1h09m | 1858.06 82485 n.a.%
May 26 02:08 | 192 4.1% | 4.377 1h07m | 1926.40 82485 n.a.%
May 26 02:08 | 193 4.2% | 3.673 56m19s | 2295.63 82485 n.a.%
May 26 02:08 | 196 4.3% | 2.907 44m32s | 2900.53 82485 n.a.%
May 26 02:08 | 201 4.4% | 3.238 49m32s | 2604.03 82485 n.a.%
May 26 02:08 | 205 4.5% | 4.416 1h07m | 1909.39 82485 n.a.%
May 26 02:09 | 208 4.6% | 4.496 1h08m | 1875.41 82485 n.a.%
May 26 02:09 | 213 4.7% | 4.465 1h08m | 1888.43 82485 n.a.%
May 26 02:09 | 217 4.8% | 4.471 1h08m | 1885.90 82485 n.a.%
May 26 02:09 | 220 4.9% | 4.466 1h07m | 1888.01 82485 n.a.%
May 26 02:09 | 225 5.0% | 4.427 1h07m | 1904.64 82485 n.a.%
May 26 02:09 | 228 5.1% | 4.456 1h07m | 1892.25 82485 n.a.%
May 26 02:09 | 232 5.2% | 4.501 1h08m | 1873.33 82485 n.a.%
May 26 02:09 | 240 5.3% | 4.477 1h07m | 1883.37 82485 n.a.%
May 26 02:09 | 241 5.4% | 4.460 1h07m | 1890.55 82485 n.a.%
May 26 02:09 | 252 5.5% | 4.426 1h06m | 1905.07 82485 n.a.%
x mod p out of range!! x = -15415547, p = 1721, pinv = 2364552, r = -15415547
May 26 02:09 | 253 5.6% | 2.008 30m19s | 4199.13 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-26 02:09:45 (31696): mfaktc-win-64.exe exited; CPU time 8.281250
2026-05-26 02:09:45 (31696): app exit status: 0x1
2026-05-26 02:09:45 (31696): called boinc_finish(195)
</stderr_txt>
]]>
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