Task 55771881
| Name | TF_76-77_163-178M_wu_19277_3 |
| Workunit | 50192763 |
| Created | 29 May 2026, 8:12:16 UTC |
| Sent | 29 May 2026, 8:57:28 UTC |
| Report deadline | 4 Jun 2026, 8:57:28 UTC |
| Received | 29 May 2026, 10:11:41 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 5 sec |
| CPU time | 4 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 | 468.60 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>
2026-05-29 13:03:26 (36664): wrapper (7.24.26018): starting
2026-05-29 13:03:26 (36664): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-29 13:03:27 (36664): wrapper: created child process 36840
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=177067217 bit_min=76 bit_max=77 (86.43 GHz-days)
Starting trial factoring M177067217 from 2^76 to 2^77 (86.43 GHz-days)
k_min = 213359268317580
k_max = 426718536644275
Using GPU kernel "barrett87_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 29 13:03 | 0 0.1% | 3.939 1h02m | 1974.82 82485 n.a.%
May 29 13:03 | 3 0.2% | 3.992 1h03m | 1948.60 82485 n.a.%
May 29 13:03 | 4 0.3% | 4.008 1h03m | 1940.83 82485 n.a.%
May 29 13:03 | 7 0.4% | 3.997 1h03m | 1946.17 82485 n.a.%
May 29 13:03 | 12 0.5% | 3.964 1h03m | 1962.37 82485 n.a.%
May 29 13:03 | 15 0.6% | 3.998 1h03m | 1945.68 82485 n.a.%
May 29 13:03 | 19 0.7% | 3.948 1h02m | 1970.32 82485 n.a.%
May 29 13:04 | 27 0.8% | 3.965 1h02m | 1961.87 82485 n.a.%
May 29 13:04 | 28 0.9% | 3.923 1h02m | 1982.88 82485 n.a.%
May 29 13:04 | 39 1.0% | 2.575 40m46s | 3020.90 82485 n.a.%
May 29 13:04 | 40 1.1% | 2.637 41m43s | 2949.88 82485 n.a.%
May 29 13:04 | 43 1.2% | 3.986 1h02m | 1951.54 82485 n.a.%
May 29 13:04 | 48 1.4% | 3.996 1h03m | 1946.65 82485 n.a.%
May 29 13:04 | 52 1.5% | 3.972 1h02m | 1958.42 82485 n.a.%
May 29 13:04 | 55 1.6% | 3.967 1h02m | 1960.88 82485 n.a.%
May 29 13:04 | 60 1.7% | 3.962 1h02m | 1963.36 82485 n.a.%
May 29 13:04 | 63 1.8% | 3.996 1h02m | 1946.65 82485 n.a.%
May 29 13:04 | 64 1.9% | 3.976 1h02m | 1956.45 82485 n.a.%
May 29 13:04 | 67 2.0% | 3.971 1h02m | 1958.91 82485 n.a.%
May 29 13:04 | 75 2.1% | 3.974 1h02m | 1957.43 82485 n.a.%
May 29 13:04 | 84 2.2% | 3.973 1h02m | 1957.92 82485 n.a.%
May 29 13:04 | 87 2.3% | 4.001 1h02m | 1944.22 82485 n.a.%
May 29 13:04 | 88 2.4% | 3.960 1h01m | 1964.35 82485 n.a.%
May 29 13:05 | 99 2.5% | 3.993 1h02m | 1948.12 82485 n.a.%
May 29 13:05 | 103 2.6% | 4.002 1h02m | 1943.74 82485 n.a.%
2026-05-29 13:05:15 (33156): wrapper (7.24.26018): starting
2026-05-29 13:05:15 (33156): wrapper: running mfaktc-win-64.exe (-d 0)
2026-05-29 13:05:15 (33156): wrapper: created child process 37608
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=177067217 bit_min=76 bit_max=77 (86.43 GHz-days)
Starting trial factoring M177067217 from 2^76 to 2^77 (86.43 GHz-days)
k_min = 213359268317580
k_max = 426718536644275
Using GPU kernel "barrett87_mul32_gs"
found a valid checkpoint file!
last finished class was: 60
no factors found so far.
previous work took 60829 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
May 29 13:05 | 63 1.8% | 4.097 1h04m | 1898.66 82485 n.a.%
May 29 13:05 | 64 1.9% | 4.100 1h04m | 1897.28 82485 n.a.%
May 29 13:05 | 67 2.0% | 4.093 1h04m | 1900.52 82485 n.a.%
May 29 13:05 | 75 2.1% | 4.091 1h04m | 1901.45 82485 n.a.%
May 29 13:05 | 84 2.2% | 4.092 1h04m | 1900.98 82485 n.a.%
May 29 13:05 | 87 2.3% | 4.092 1h03m | 1900.98 82485 n.a.%
May 29 13:05 | 88 2.4% | 4.105 1h04m | 1894.96 82485 n.a.%
May 29 13:05 | 99 2.5% | 4.093 1h03m | 1900.52 82485 n.a.%
May 29 13:05 | 103 2.6% | 4.087 1h03m | 1903.31 82485 n.a.%
May 29 13:05 | 108 2.7% | 4.088 1h03m | 1902.84 82485 n.a.%
May 29 13:06 | 115 2.8% | 4.095 1h03m | 1899.59 82485 n.a.%
May 29 13:06 | 120 2.9% | 4.090 1h03m | 1901.91 82485 n.a.%
May 29 13:06 | 124 3.0% | 4.091 1h03m | 1901.45 82485 n.a.%
May 29 13:06 | 127 3.1% | 4.088 1h03m | 1902.84 82485 n.a.%
May 29 13:06 | 132 3.2% | 4.082 1h03m | 1905.64 82485 n.a.%
May 29 13:06 | 139 3.3% | 4.094 1h03m | 1900.06 82485 n.a.%
May 29 13:06 | 144 3.4% | 4.092 1h03m | 1900.98 82485 n.a.%
May 29 13:06 | 147 3.5% | 4.091 1h03m | 1901.45 82485 n.a.%
May 29 13:06 | 148 3.6% | 4.101 1h03m | 1896.81 82485 n.a.%
May 29 13:06 | 159 3.8% | 4.096 1h03m | 1899.13 82485 n.a.%
May 29 13:06 | 160 3.9% | 4.095 1h03m | 1899.59 82485 n.a.%
May 29 13:06 | 168 4.0% | 4.086 1h02m | 1903.78 82485 n.a.%
May 29 13:06 | 172 4.1% | 4.088 1h02m | 1902.84 82485 n.a.%
May 29 13:06 | 175 4.2% | 4.094 1h02m | 1900.06 82485 n.a.%
May 29 13:06 | 180 4.3% | 4.096 1h02m | 1899.13 82485 n.a.%
May 29 13:07 | 183 4.4% | 4.088 1h02m | 1902.84 82485 n.a.%
May 29 13:07 | 187 4.5% | 4.089 1h02m | 1902.38 82485 n.a.%
May 29 13:07 | 192 4.6% | 4.085 1h02m | 1904.24 82485 n.a.%
May 29 13:07 | 195 4.7% | 4.090 1h02m | 1901.91 82485 n.a.%
May 29 13:07 | 199 4.8% | 4.090 1h02m | 1901.91 82485 n.a.%
May 29 13:07 | 204 4.9% | 4.075 1h02m | 1908.91 82485 n.a.%
May 29 13:07 | 207 5.0% | 4.096 1h02m | 1899.13 82485 n.a.%
May 29 13:07 | 208 5.1% | 4.108 1h02m | 1893.58 82485 n.a.%
May 29 13:07 | 220 5.2% | 4.090 1h02m | 1901.91 82485 n.a.%
May 29 13:07 | 223 5.3% | 4.095 1h02m | 1899.59 82485 n.a.%
May 29 13:07 | 228 5.4% | 4.090 1h01m | 1901.91 82485 n.a.%
May 29 13:07 | 232 5.5% | 4.088 1h01m | 1902.84 82485 n.a.%
May 29 13:07 | 235 5.6% | 4.086 1h01m | 1903.78 82485 n.a.%
May 29 13:07 | 243 5.7% | 4.089 1h01m | 1902.38 82485 n.a.%
May 29 13:08 | 252 5.8% | 4.087 1h01m | 1903.31 82485 n.a.%
May 29 13:08 | 259 5.9% | 4.097 1h01m | 1898.66 82485 n.a.%
May 29 13:08 | 264 6.0% | 4.102 1h01m | 1896.35 82485 n.a.%
May 29 13:08 | 267 6.1% | 4.087 1h01m | 1903.31 82485 n.a.%
May 29 13:08 | 279 6.2% | 4.084 1h01m | 1904.71 82485 n.a.%
May 29 13:08 | 280 6.4% | 4.092 1h01m | 1900.98 82485 n.a.%
May 29 13:08 | 283 6.5% | 4.091 1h01m | 1901.45 82485 n.a.%
May 29 13:08 | 292 6.6% | 4.081 1h01m | 1906.11 82485 n.a.%
May 29 13:08 | 295 6.7% | 4.095 1h01m | 1899.59 82485 n.a.%
May 29 13:08 | 300 6.8% | 4.090 1h01m | 1901.91 82485 n.a.%
May 29 13:08 | 304 6.9% | 4.099 1h01m | 1897.74 82485 n.a.%
May 29 13:08 | 307 7.0% | 4.086 1h00m | 1903.78 82485 n.a.%
May 29 13:08 | 312 7.1% | 4.092 1h00m | 1900.98 82485 n.a.%
May 29 13:08 | 315 7.2% | 4.088 1h00m | 1902.84 82485 n.a.%
May 29 13:08 | 319 7.3% | 4.093 1h00m | 1900.52 82485 n.a.%
May 29 13:09 | 327 7.4% | 4.085 1h00m | 1904.24 82485 n.a.%
May 29 13:09 | 328 7.5% | 4.084 1h00m | 1904.71 82485 n.a.%
May 29 13:09 | 339 7.6% | 4.093 1h00m | 1900.52 82485 n.a.%
May 29 13:09 | 340 7.7% | 4.095 1h00m | 1899.59 82485 n.a.%
May 29 13:09 | 348 7.8% | 4.109 1h00m | 1893.12 82485 n.a.%
May 29 13:09 | 355 7.9% | 4.097 1h00m | 1898.66 82485 n.a.%
May 29 13:09 | 360 8.0% | 4.093 1h00m | 1900.52 82485 n.a.%
May 29 13:09 | 363 8.1% | 4.092 1h00m | 1900.98 82485 n.a.%
May 29 13:09 | 364 8.2% | 4.091 1h00m | 1901.45 82485 n.a.%
May 29 13:09 | 367 8.3% | 4.080 59m50s | 1906.58 82485 n.a.%
May 29 13:09 | 372 8.4% | 4.091 59m56s | 1901.45 82485 n.a.%
May 29 13:09 | 375 8.5% | 4.089 59m50s | 1902.38 82485 n.a.%
May 29 13:09 | 379 8.6% | 4.093 59m50s | 1900.52 82485 n.a.%
May 29 13:09 | 384 8.8% | 4.088 59m41s | 1902.84 82485 n.a.%
May 29 13:09 | 388 8.9% | 4.087 59m36s | 1903.31 82485 n.a.%
May 29 13:10 | 399 9.0% | 4.095 59m39s | 1899.59 82485 n.a.%
May 29 13:10 | 400 9.1% | 4.087 59m28s | 1903.31 82485 n.a.%
May 29 13:10 | 403 9.2% | 4.092 59m28s | 1900.98 82485 n.a.%
May 29 13:10 | 412 9.3% | 4.089 59m22s | 1902.38 82485 n.a.%
x mod p out of range!! x = 579391, p = 61071, pinv = 70476, r = 518320
May 29 13:10 | 423 9.4% | 2.339 33m55s | 3325.71 82485 n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2026-05-29 13:10:18 (33156): mfaktc-win-64.exe exited; CPU time 4.593750
2026-05-29 13:10:18 (33156): app exit status: 0x1
2026-05-29 13:10:18 (33156): called boinc_finish(195)
</stderr_txt>
]]>
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