Task 41458970

Name	TF_75-76_681-691M_wu_5625_0
Workunit	37686273
Created	4 Dec 2025, 15:54:01 UTC
Sent	6 Dec 2025, 5:19:53 UTC
Report deadline	11 Dec 2025, 11:19:53 UTC
Received	6 Dec 2025, 8:59:51 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	232349
Run time	41 sec
CPU time	1 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	307.44 GFLOPS
Application version	TF v0.43 (cuda128)
Peak working set size	89.55 MB
Peak swap size	378.88 MB
Peak disk usage	0.01 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>
2025-12-06 00:44:45 (22284): wrapper (7.24.26018): starting
2025-12-06 00:44:46 (22284): wrapper: running mfaktc-win-64.exe (-d 0)
2025-12-06 00:44:46 (22284): wrapper: created child process 7308
mfaktc v0.23.3 (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  12.80
  CUDA runtime version      12.80
  CUDA driver version       13.0

CUDA device info
  name                      NVIDIA GeForce GTX 750 Ti
  compute capability        5.0
  max threads per block     1024
  max shared memory per MP  65536 byte
  number of multiprocessors 5
  CUDA cores per MP         128
  CUDA cores - total        640
  clock rate (CUDA cores)   1084MHz
  memory clock rate:        2700MHz
  memory bus width:         128 bit

Automatic parameters
  threads per grid          655360
  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=681884969 bit_min=75 bit_max=76 (11.22 GHz-days)
Starting trial factoring M681884969 from 2^75 to 2^76 (11.22 GHz-days)
 k_min =  27701836511580
 k_max =  55403673024734
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Dec 06 00:44 |    0   0.1% |  6.306   1h40m |    160.16    82485    n.a.%
Dec 06 00:45 |    4   0.2% |  6.395   1h42m |    157.93    82485    n.a.%
Dec 06 00:45 |   12   0.3% |  6.621   1h45m |    152.54    82485    n.a.%
Dec 06 00:45 |   16   0.4% |  6.806   1h48m |    148.39    82485    n.a.%
Dec 06 00:45 |   19   0.5% |  3.054  48m37s |    330.71    82485    n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2025-12-06 00:45:18 (22284): mfaktc-win-64.exe exited; CPU time 1.375000
2025-12-06 00:45:18 (22284): app exit status: 0x1
2025-12-06 00:45:18 (22284): called boinc_finish(195)

</stderr_txt>
]]>