Task 58911583
| Name | TF_76-77_198-201M_wu_1029_0 |
| Workunit | 52973298 |
| Created | 31 Aug 2026, 15:59:02 UTC |
| Sent | 2 Sep 2026, 21:31:16 UTC |
| Report deadline | 8 Sep 2026, 21:31:16 UTC |
| Received | 5 Sep 2026, 4:07:02 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 255982 |
| Run time | 7 min 34 sec |
| CPU time | 6 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 2,084.08 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 121.46 MB |
| Peak swap size | 338.82 MB |
| Peak disk usage | 4.96 MB |
Stderr output
<core_client_version>8.2.4</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
(0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2026-09-05 05:57:13 (3540): wrapper (7.24.26018): starting
2026-09-05 05:57:14 (3540): wrapper: running mfaktc-win-64.exe (-d 0)
2026-09-05 05:57:14 (3540): wrapper: created child process 15528
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 13.0
CUDA device info
name NVIDIA GeForce GTX 1080
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 20
clock rate (CUDA cores) 1847 MHz
memory clock rate: 5005 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=198554633 bit_min=76 bit_max=77 (77.08 GHz-days)
Starting trial factoring M198554633 from 2^76 to 2^77 (77.08 GHz-days)
k_min = 190269707092080
k_max = 380539414186896
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Sep 05 05:57 | 0 0.1% | 5.786 1h32m | 1198.93 82485 n.a.%
Sep 05 05:57 | 3 0.2% | 5.756 1h31m | 1205.18 82485 n.a.%
Sep 05 05:57 | 7 0.3% | 5.759 1h31m | 1204.55 82485 n.a.%
Sep 05 05:57 | 12 0.4% | 5.754 1h31m | 1205.60 82485 n.a.%
Sep 05 05:57 | 15 0.5% | 5.756 1h31m | 1205.18 82485 n.a.%
Sep 05 05:57 | 16 0.6% | 5.758 1h31m | 1204.76 82485 n.a.%
Sep 05 05:57 | 28 0.7% | 5.760 1h31m | 1204.34 82485 n.a.%
Sep 05 05:58 | 31 0.8% | 5.761 1h31m | 1204.13 82485 n.a.%
Sep 05 05:58 | 36 0.9% | 5.762 1h31m | 1203.92 82485 n.a.%
Sep 05 05:58 | 40 1.0% | 5.764 1h31m | 1203.51 82485 n.a.%
Sep 05 05:58 | 43 1.1% | 5.766 1h31m | 1203.09 82485 n.a.%
Sep 05 05:58 | 51 1.2% | 5.767 1h31m | 1202.88 82485 n.a.%
Sep 05 05:58 | 60 1.4% | 5.766 1h31m | 1203.09 82485 n.a.%
Sep 05 05:58 | 67 1.5% | 5.771 1h30m | 1202.05 82485 n.a.%
Sep 05 05:58 | 72 1.6% | 5.768 1h30m | 1202.67 82485 n.a.%
Sep 05 05:58 | 75 1.7% | 5.772 1h30m | 1201.84 82485 n.a.%
Sep 05 05:58 | 87 1.8% | 5.772 1h30m | 1201.84 82485 n.a.%
Sep 05 05:59 | 88 1.9% | 5.772 1h30m | 1201.84 82485 n.a.%
Sep 05 05:59 | 91 2.0% | 5.773 1h30m | 1201.63 82485 n.a.%
Sep 05 05:59 | 100 2.1% | 5.773 1h30m | 1201.63 82485 n.a.%
Sep 05 05:59 | 103 2.2% | 5.773 1h30m | 1201.63 82485 n.a.%
Sep 05 05:59 | 108 2.3% | 5.774 1h30m | 1201.42 82485 n.a.%
Sep 05 05:59 | 112 2.4% | 5.773 1h30m | 1201.63 82485 n.a.%
Sep 05 05:59 | 115 2.5% | 5.778 1h30m | 1200.59 82485 n.a.%
Sep 05 05:59 | 120 2.6% | 5.777 1h30m | 1200.80 82485 n.a.%
Sep 05 05:59 | 123 2.7% | 5.778 1h29m | 1200.59 82485 n.a.%
Sep 05 05:59 | 127 2.8% | 5.776 1h29m | 1201.01 82485 n.a.%
Sep 05 05:59 | 135 2.9% | 5.781 1h29m | 1199.97 82485 n.a.%
Sep 05 06:00 | 136 3.0% | 5.779 1h29m | 1200.38 82485 n.a.%
Sep 05 06:00 | 147 3.1% | 5.819 1h30m | 1192.13 82485 n.a.%
Sep 05 06:00 | 148 3.2% | 5.780 1h29m | 1200.17 82485 n.a.%
Sep 05 06:00 | 156 3.3% | 5.779 1h29m | 1200.38 82485 n.a.%
Sep 05 06:00 | 163 3.4% | 5.781 1h29m | 1199.97 82485 n.a.%
Sep 05 06:00 | 168 3.5% | 5.773 1h29m | 1201.63 82485 n.a.%
Sep 05 06:00 | 171 3.6% | 5.773 1h29m | 1201.63 82485 n.a.%
Sep 05 06:00 | 172 3.8% | 5.774 1h28m | 1201.42 82485 n.a.%
Sep 05 06:00 | 175 3.9% | 5.814 1h29m | 1193.16 82485 n.a.%
Sep 05 06:00 | 180 4.0% | 5.774 1h28m | 1201.42 82485 n.a.%
Sep 05 06:01 | 183 4.1% | 5.771 1h28m | 1202.05 82485 n.a.%
Sep 05 06:01 | 187 4.2% | 5.770 1h28m | 1202.25 82485 n.a.%
Sep 05 06:01 | 192 4.3% | 5.769 1h28m | 1202.46 82485 n.a.%
Sep 05 06:01 | 196 4.4% | 5.766 1h28m | 1203.09 82485 n.a.%
Sep 05 06:01 | 207 4.5% | 5.770 1h28m | 1202.25 82485 n.a.%
Sep 05 06:01 | 208 4.6% | 5.768 1h28m | 1202.67 82485 n.a.%
Sep 05 06:01 | 211 4.7% | 5.769 1h27m | 1202.46 82485 n.a.%
Sep 05 06:01 | 220 4.8% | 5.771 1h27m | 1202.05 82485 n.a.%
Sep 05 06:01 | 231 4.9% | 5.770 1h27m | 1202.25 82485 n.a.%
Sep 05 06:01 | 232 5.0% | 5.767 1h27m | 1202.88 82485 n.a.%
Sep 05 06:02 | 235 5.1% | 5.767 1h27m | 1202.88 82485 n.a.%
Sep 05 06:02 | 240 5.2% | 5.769 1h27m | 1202.46 82485 n.a.%
Sep 05 06:02 | 243 5.3% | 5.771 1h27m | 1202.05 82485 n.a.%
Sep 05 06:02 | 247 5.4% | 5.766 1h27m | 1203.09 82485 n.a.%
Sep 05 06:02 | 252 5.5% | 5.773 1h27m | 1201.63 82485 n.a.%
Sep 05 06:02 | 255 5.6% | 5.768 1h27m | 1202.67 82485 n.a.%
Sep 05 06:02 | 256 5.7% | 5.766 1h26m | 1203.09 82485 n.a.%
Sep 05 06:02 | 267 5.8% | 5.778 1h27m | 1200.59 82485 n.a.%
Sep 05 06:02 | 268 5.9% | 5.768 1h26m | 1202.67 82485 n.a.%
Sep 05 06:02 | 271 6.0% | 5.768 1h26m | 1202.67 82485 n.a.%
Sep 05 06:02 | 276 6.1% | 5.769 1h26m | 1202.46 82485 n.a.%
Sep 05 06:03 | 280 6.2% | 5.766 1h26m | 1203.09 82485 n.a.%
Sep 05 06:03 | 288 6.4% | 5.768 1h26m | 1202.67 82485 n.a.%
Sep 05 06:03 | 291 6.5% | 5.769 1h26m | 1202.46 82485 n.a.%
Sep 05 06:03 | 292 6.6% | 5.767 1h26m | 1202.88 82485 n.a.%
Sep 05 06:03 | 295 6.7% | 5.770 1h26m | 1202.25 82485 n.a.%
Sep 05 06:03 | 303 6.8% | 5.768 1h26m | 1202.67 82485 n.a.%
Sep 05 06:03 | 312 6.9% | 5.767 1h25m | 1202.88 82485 n.a.%
Sep 05 06:03 | 315 7.0% | 5.771 1h25m | 1202.05 82485 n.a.%
Sep 05 06:03 | 331 7.1% | 5.768 1h25m | 1202.67 82485 n.a.%
Sep 05 06:03 | 336 7.2% | 5.768 1h25m | 1202.67 82485 n.a.%
Sep 05 06:04 | 340 7.3% | 5.767 1h25m | 1202.88 82485 n.a.%
Sep 05 06:04 | 343 7.4% | 5.768 1h25m | 1202.67 82485 n.a.%
Sep 05 06:04 | 348 7.5% | 5.766 1h25m | 1203.09 82485 n.a.%
Sep 05 06:04 | 351 7.6% | 5.768 1h25m | 1202.67 82485 n.a.%
Sep 05 06:04 | 352 7.7% | 5.766 1h25m | 1203.09 82485 n.a.%
Sep 05 06:04 | 355 7.8% | 5.768 1h25m | 1202.67 82485 n.a.%
Sep 05 06:04 | 367 7.9% | 5.772 1h25m | 1201.84 82485 n.a.%
Sep 05 06:04 | 372 8.0% | 5.769 1h24m | 1202.46 82485 n.a.%
x mod p out of range!! x = -1945596, p = 33329, pinv = 128354, r = -1945596
Sep 05 06:04 | 375 8.1% | 2.875 42m16s | 2412.87 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-09-05 06:04:46 (3540): mfaktc-win-64.exe exited; CPU time 6.890625
2026-09-05 06:04:46 (3540): app exit status: 0x1
2026-09-05 06:04:46 (3540): called boinc_finish(195)
</stderr_txt>
]]>
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