Task 55686335
| Name | TF_76-77_174-176M_wu_39212_1 |
| Workunit | 49969979 |
| Created | 22 May 2026, 9:33:52 UTC |
| Sent | 22 May 2026, 9:40:30 UTC |
| Report deadline | 28 May 2026, 9:40:30 UTC |
| Received | 24 May 2026, 14:56:22 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 34 sec |
| CPU time | 2 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 11,767.82 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 146.22 MB |
| Peak swap size | 467.16 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>
2026-05-23 17:43:20 (28520): wrapper (7.24.26018): starting
2026-05-23 17:43:20 (28520): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-23 17:43:20 (28520): wrapper: created child process 17856
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=176176909 bit_min=76 bit_max=77 (86.87 GHz-days)
Starting trial factoring M176176909 from 2^76 to 2^77 (86.87 GHz-days)
k_min = 214437476950620
k_max = 428874953901673
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 23 17:43 | 0 0.1% | 3.984 1h03m | 1962.38 82485 n.a.%
May 23 17:43 | 12 0.2% | 3.983 1h03m | 1962.88 82485 n.a.%
May 23 17:43 | 15 0.3% | 2.755 43m57s | 2837.80 82485 n.a.%
May 23 17:43 | 20 0.4% | 2.740 43m39s | 2853.34 82485 n.a.%
May 23 17:43 | 24 0.5% | 4.012 1h03m | 1948.69 82485 n.a.%
May 23 17:43 | 27 0.6% | 3.995 1h03m | 1956.98 82485 n.a.%
May 23 17:43 | 35 0.7% | 4.012 1h03m | 1948.69 82485 n.a.%
May 23 17:43 | 36 0.8% | 4.006 1h03m | 1951.61 82485 n.a.%
May 23 17:43 | 44 0.9% | 3.987 1h03m | 1960.91 82485 n.a.%
May 23 17:43 | 47 1.0% | 3.998 1h03m | 1955.51 82485 n.a.%
May 23 17:44 | 56 1.1% | 3.976 1h02m | 1966.33 82485 n.a.%
May 23 17:44 | 59 1.2% | 4.003 1h03m | 1953.07 82485 n.a.%
May 23 17:44 | 71 1.4% | 4.002 1h03m | 1953.56 82485 n.a.%
May 23 17:44 | 72 1.5% | 3.994 1h02m | 1957.47 82485 n.a.%
May 23 17:44 | 75 1.6% | 4.001 1h03m | 1954.05 82485 n.a.%
May 23 17:44 | 80 1.7% | 4.008 1h03m | 1950.63 82485 n.a.%
May 23 17:44 | 87 1.8% | 3.996 1h02m | 1956.49 82485 n.a.%
May 23 17:44 | 92 1.9% | 4.003 1h02m | 1953.07 82485 n.a.%
May 23 17:44 | 96 2.0% | 4.010 1h02m | 1949.66 82485 n.a.%
May 23 17:44 | 99 2.1% | 4.005 1h02m | 1952.09 82485 n.a.%
May 23 17:44 | 104 2.2% | 4.003 1h02m | 1953.07 82485 n.a.%
May 23 17:44 | 107 2.3% | 4.002 1h02m | 1953.56 82485 n.a.%
May 23 17:44 | 111 2.4% | 4.002 1h02m | 1953.56 82485 n.a.%
May 23 17:44 | 119 2.5% | 3.996 1h02m | 1956.49 82485 n.a.%
May 23 17:44 | 120 2.6% | 4.014 1h02m | 1947.72 82485 n.a.%
May 23 17:45 | 131 2.7% | 3.989 1h02m | 1959.92 82485 n.a.%
May 23 17:45 | 132 2.8% | 4.003 1h02m | 1953.07 82485 n.a.%
May 23 17:45 | 135 2.9% | 4.016 1h02m | 1946.75 82485 n.a.%
May 23 17:45 | 140 3.0% | 4.006 1h02m | 1951.61 82485 n.a.%
May 23 17:45 | 147 3.1% | 4.013 1h02m | 1948.20 82485 n.a.%
May 23 17:45 | 152 3.2% | 4.026 1h02m | 1941.91 82485 n.a.%
May 23 17:45 | 155 3.3% | 4.019 1h02m | 1945.29 82485 n.a.%
May 23 17:45 | 156 3.4% | 4.004 1h01m | 1952.58 82485 n.a.%
May 23 17:45 | 159 3.5% | 4.002 1h01m | 1953.56 82485 n.a.%
May 23 17:45 | 164 3.6% | 3.999 1h01m | 1955.02 82485 n.a.%
May 23 17:45 | 167 3.8% | 4.006 1h01m | 1951.61 82485 n.a.%
May 23 17:45 | 171 3.9% | 4.010 1h01m | 1949.66 82485 n.a.%
May 23 17:45 | 176 4.0% | 4.004 1h01m | 1952.58 82485 n.a.%
May 23 17:45 | 180 4.1% | 4.009 1h01m | 1950.15 82485 n.a.%
May 23 17:45 | 191 4.2% | 3.986 1h01m | 1961.40 82485 n.a.%
May 23 17:46 | 192 4.3% | 4.011 1h01m | 1949.17 82485 n.a.%
May 23 17:46 | 195 4.4% | 4.005 1h01m | 1952.09 82485 n.a.%
May 23 17:46 | 204 4.5% | 4.002 1h01m | 1953.56 82485 n.a.%
May 23 17:46 | 212 4.6% | 4.012 1h01m | 1948.69 82485 n.a.%
May 23 17:46 | 215 4.7% | 3.986 1h00m | 1961.40 82485 n.a.%
May 23 17:46 | 219 4.8% | 4.012 1h01m | 1948.69 82485 n.a.%
May 23 17:46 | 224 4.9% | 3.999 1h00m | 1955.02 82485 n.a.%
May 23 17:46 | 231 5.0% | 4.014 1h01m | 1947.72 82485 n.a.%
May 23 17:46 | 236 5.1% | 4.003 1h00m | 1953.07 82485 n.a.%
May 23 17:46 | 239 5.2% | 4.013 1h00m | 1948.20 82485 n.a.%
May 23 17:46 | 240 5.3% | 4.012 1h00m | 1948.69 82485 n.a.%
May 23 17:46 | 251 5.4% | 4.019 1h00m | 1945.29 82485 n.a.%
May 23 17:46 | 252 5.5% | 4.018 1h00m | 1945.78 82485 n.a.%
x mod p out of range!! x = 598084, p = 58275, pinv = 73864, r = 539809
May 23 17:46 | 255 5.6% | 1.637 24m43s | 4775.89 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-23 17:46:53 (28520): mfaktc-win-64.exe exited; CPU time 2.593750
2026-05-23 17:46:53 (28520): app exit status: 0x1
2026-05-23 17:46:53 (28520): called boinc_finish(195)
</stderr_txt>
]]>
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