Task 30615831
| Name | TF_75-76_433-438M_wu_65246_0 |
| Workunit | 27787882 |
| Created | 4 Aug 2025, 15:18:16 UTC |
| Sent | 8 Aug 2025, 10:03:03 UTC |
| Report deadline | 13 Aug 2025, 16:03:03 UTC |
| Received | 8 Aug 2025, 10:27:12 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 246563 |
| Run time | 6 min 21 sec |
| CPU time | 2 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 191.02 GFLOPS |
| Application version | TF v0.43 (cuda120) |
| Peak working set size | 89.10 MB |
| Peak swap size | 371.25 MB |
| Peak disk usage | 3.43 MB |
Stderr output
<core_client_version>8.0.2</core_client_version>
<![CDATA[
<message>
(unknown error) (0) - exit code 195 (0xc3)</message>
<stderr_txt>
2025-08-08 06:14:55 (4204): wrapper (7.24.26018): starting
2025-08-08 06:14:55 (4204): wrapper: running mfaktc-win-64.exe (-d 0)
2025-08-08 06:14:55 (4204): wrapper: created child process 7776
mfaktc v0.23.0 (64bit built)
Compiletime options
THREADS_PER_BLOCK 256
SIEVE_SIZE_LIMIT 32kiB
SIEVE_SIZE 193154bits
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 2047Mi bits
GPUSieveProcessSize 16Ki bits
Checkpoints enabled
CheckpointDelay 60s
WorkFileAddDelay disabled
Stages disabled
StopAfterFactor bitlevel
PrintMode compact
Logging disabled
V5UserID (none)
ComputerID (none)
AllowSleep yes
TimeStampInResults no
CUDA version info
binary compiled for CUDA 12.0
CUDA runtime version 12.0
CUDA driver version 12.40
CUDA device info
name Quadro K620
compute capability 5.0
max threads per block 1024
max shared memory per MP 65536 byte
number of multiprocessors 3
CUDA cores per MP 128
CUDA cores - total 384
clock rate (CUDA cores) 1124MHz
memory clock rate: 900MHz
memory bus width: 128 bit
Automatic parameters
threads per grid 786432
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple selftest...
Selftest statistics
number of tests 107
successfull tests 107
selftest PASSED!
got assignment: exp=436755593 bit_min=75 bit_max=76 (17.52 GHz-days)
Starting trial factoring M436755593 from 2^75 to 2^76 (17.52 GHz-days)
k_min = 43249511243400
k_max = 86499022493244
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Aug 08 06:15 | 0 0.1% | 17.398 4h38m | 90.63 82485 n.a.%
Aug 08 06:15 | 7 0.2% | 18.403 4h53m | 85.68 82485 n.a.%
Aug 08 06:15 | 12 0.3% | 17.412 4h37m | 90.56 82485 n.a.%
Aug 08 06:16 | 15 0.4% | 19.405 5h09m | 81.26 82485 n.a.%
Aug 08 06:16 | 16 0.5% | 18.421 4h53m | 85.60 82485 n.a.%
Aug 08 06:16 | 27 0.6% | 17.393 4h36m | 90.66 82485 n.a.%
Aug 08 06:17 | 36 0.7% | 18.414 4h52m | 85.63 82485 n.a.%
Aug 08 06:17 | 40 0.8% | 17.410 4h36m | 90.57 82485 n.a.%
Aug 08 06:17 | 43 0.9% | 17.415 4h36m | 90.54 82485 n.a.%
Aug 08 06:17 | 48 1.0% | 18.412 4h51m | 85.64 82485 n.a.%
Aug 08 06:18 | 51 1.1% | 18.405 4h51m | 85.67 82485 n.a.%
Aug 08 06:18 | 55 1.2% | 17.419 4h35m | 90.52 82485 n.a.%
Aug 08 06:18 | 60 1.4% | 18.408 4h50m | 85.66 82485 n.a.%
Aug 08 06:19 | 63 1.5% | 17.416 4h34m | 90.54 82485 n.a.%
Aug 08 06:19 | 67 1.6% | 17.411 4h34m | 90.56 82485 n.a.%
Aug 08 06:19 | 75 1.7% | 19.389 5h05m | 81.33 82485 n.a.%
Aug 08 06:20 | 76 1.8% | 17.419 4h33m | 90.52 82485 n.a.%
Aug 08 06:20 | 88 1.9% | 17.416 4h33m | 90.54 82485 n.a.%
Aug 08 06:20 | 91 2.0% | 18.426 4h48m | 85.58 82485 n.a.%
Aug 08 06:20 | 96 2.1% | 18.393 4h48m | 85.73 82485 n.a.%
Aug 08 06:21 | 100 2.2% | 6.161 1h36m | 255.94 82485 n.a.%
ERROR: cudaGetLastError() returned 999: unknown error
2025-08-08 06:21:14 (4204): mfaktc-win-64.exe exited; CPU time 2.656250
2025-08-08 06:21:14 (4204): app exit status: 0x1
2025-08-08 06:21:14 (4204): called boinc_finish(195)
</stderr_txt>
]]>
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