Task 31947683

Name	TF_75-76_458-468M_wu_174777_0
Workunit	29021354
Created	21 Aug 2025, 22:18:45 UTC
Sent	29 Aug 2025, 12:03:29 UTC
Report deadline	3 Sep 2025, 18:03:29 UTC
Received	29 Aug 2025, 13:52:01 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	232349
Run time	20 sec
CPU time	1 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	307.43 GFLOPS
Application version	TF v0.43 (cuda120)
Peak working set size	86.93 MB
Peak swap size	374.05 MB
Peak disk usage	3.43 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>
2025-08-29 08:52:38 (32832): wrapper (7.24.26018): starting
2025-08-29 08:52:38 (32832): wrapper: running mfaktc-win-64.exe (-d 0)
2025-08-29 08:52:38 (32832): wrapper: created child process 18088
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       12.50

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=467393743 bit_min=75 bit_max=76 (16.37 GHz-days)
Starting trial factoring M467393743 from 2^75 to 2^76 (16.37 GHz-days)
 k_min =  40414460426340
 k_max =  80828920859039
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Aug 29 08:52 |    0   0.1% |  9.280   2h28m |    158.78    82485    n.a.%
Aug 29 08:52 |    5   0.2% |  5.025   1h20m |    293.23    82485    n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2025-08-29 08:52:55 (32832): mfaktc-win-64.exe exited; CPU time 1.984375
2025-08-29 08:52:55 (32832): app exit status: 0x1
2025-08-29 08:52:55 (32832): called boinc_finish(195)

</stderr_txt>
]]>