Task 30615498

Name	TF_75-76_433-438M_wu_64913_0
Workunit	27787549
Created	4 Aug 2025, 15:18:05 UTC
Sent	8 Aug 2025, 9:34:43 UTC
Report deadline	13 Aug 2025, 15:34:43 UTC
Received	8 Aug 2025, 10:03:03 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	246563
Run time	9 min 23 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	89.12 MB
Peak swap size	371.24 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 05:44:53 (8544): wrapper (7.24.26018): starting
2025-08-08 05:44:53 (8544): wrapper: running mfaktc-win-64.exe (-d 0)
2025-08-08 05:44:53 (8544): wrapper: created child process 7304
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=436739311 bit_min=75 bit_max=76 (17.52 GHz-days)
Starting trial factoring M436739311 from 2^75 to 2^76 (17.52 GHz-days)
 k_min =  43251123623400
 k_max =  86502247247803
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Aug 08 05:45 |    0   0.1% | 18.423   4h54m |     85.59    82485    n.a.%
Aug 08 05:45 |    5   0.2% | 17.440   4h38m |     90.42    82485    n.a.%
Aug 08 05:45 |    8   0.3% | 18.434   4h54m |     85.54    82485    n.a.%
Aug 08 05:46 |    9   0.4% | 19.465   5h10m |     81.01    82485    n.a.%
Aug 08 05:46 |   20   0.5% | 18.455   4h53m |     85.44    82485    n.a.%
Aug 08 05:46 |   21   0.6% | 18.449   4h53m |     85.47    82485    n.a.%
Aug 08 05:47 |   29   0.7% | 18.456   4h53m |     85.44    82485    n.a.%
Aug 08 05:47 |   33   0.8% | 17.432   4h36m |     90.46    82485    n.a.%
Aug 08 05:47 |   36   0.9% | 18.460   4h52m |     85.42    82485    n.a.%
Aug 08 05:47 |   41   1.0% | 17.434   4h36m |     90.45    82485    n.a.%
Aug 08 05:48 |   44   1.1% | 17.446   4h35m |     90.39    82485    n.a.%
Aug 08 05:48 |   48   1.2% | 17.460   4h35m |     90.31    82485    n.a.%
Aug 08 05:48 |   53   1.4% | 18.444   4h51m |     85.50    82485    n.a.%
Aug 08 05:49 |   56   1.5% | 18.444   4h50m |     85.50    82485    n.a.%
Aug 08 05:49 |   60   1.6% | 18.449   4h50m |     85.47    82485    n.a.%
Aug 08 05:49 |   65   1.7% | 17.429   4h34m |     90.47    82485    n.a.%
Aug 08 05:50 |   69   1.8% | 17.444   4h34m |     90.40    82485    n.a.%
Aug 08 05:50 |   81   1.9% | 18.460   4h49m |     85.42    82485    n.a.%
Aug 08 05:50 |   84   2.0% | 17.448   4h33m |     90.38    82485    n.a.%
Aug 08 05:50 |   89   2.1% | 17.446   4h33m |     90.39    82485    n.a.%
Aug 08 05:51 |   93   2.2% | 17.459   4h33m |     90.32    82485    n.a.%
Aug 08 05:51 |   96   2.3% | 18.446   4h48m |     85.49    82485    n.a.%
Aug 08 05:51 |  104   2.4% | 18.459   4h48m |     85.43    82485    n.a.%
Aug 08 05:52 |  105   2.5% | 19.433   5h03m |     81.14    82485    n.a.%
Aug 08 05:52 |  113   2.6% | 17.428   4h31m |     90.48    82485    n.a.%
Aug 08 05:52 |  116   2.7% | 17.444   4h31m |     90.40    82485    n.a.%
Aug 08 05:53 |  120   2.8% | 19.472   5h02m |     80.98    82485    n.a.%
Aug 08 05:53 |  125   2.9% | 18.437   4h46m |     85.53    82485    n.a.%
Aug 08 05:53 |  128   3.0% | 17.445   4h30m |     90.39    82485    n.a.%
Aug 08 05:53 |  140   3.1% | 17.443   4h30m |     90.40    82485    n.a.%
Aug 08 05:54 |  141   3.2% |  6.030   1h33m |    261.51    82485    n.a.%
ERROR: cudaGetLastError() returned 999: unknown error
2025-08-08 05:54:14 (8544): mfaktc-win-64.exe exited; CPU time 2.687500
2025-08-08 05:54:14 (8544): app exit status: 0x1
2025-08-08 05:54:14 (8544): called boinc_finish(195)

</stderr_txt>
]]>