Task 30622612

Name	TF_75-76_433-438M_wu_72025_0
Workunit	27794661
Created	4 Aug 2025, 15:21:16 UTC
Sent	8 Aug 2025, 15:42:15 UTC
Report deadline	13 Aug 2025, 21:42:15 UTC
Received	8 Aug 2025, 17:31:28 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	231862
Run time	1 min 3 sec
CPU time	1 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	314.39 GFLOPS
Application version	TF v0.43 (cuda128)
Peak working set size	90.58 MB
Peak swap size	376.66 MB
Peak disk usage	3.55 MB

Stderr output

<core_client_version>8.0.2</core_client_version>
<![CDATA[
<message>
(unknown error) (0) - exit code 195 (0xc3)</message>
<stderr_txt>
2025-08-09 00:47:56 (3296): wrapper (7.24.26018): starting
2025-08-09 00:47:56 (3296): wrapper: running mfaktc-win-64.exe (-d 0)
2025-08-09 00:47:56 (3296): wrapper: created child process 9756
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       12.90

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)   1110MHz
  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=437092037 bit_min=75 bit_max=76 (17.51 GHz-days)
Starting trial factoring M437092037 from 2^75 to 2^76 (17.51 GHz-days)
 k_min =  43216220683020
 k_max =  86432441373799
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Aug 09 00:48 |    0   0.1% | 10.416   2h46m |    151.27    82485    n.a.%
Aug 09 00:48 |    3   0.2% | 10.514   2h47m |    149.86    82485    n.a.%
Aug 09 00:48 |    4   0.3% | 10.533   2h48m |    149.59    82485    n.a.%
Aug 09 00:48 |    7   0.4% | 10.514   2h47m |    149.86    82485    n.a.%
Aug 09 00:48 |   12   0.5% | 10.512   2h47m |    149.89    82485    n.a.%
Aug 09 00:48 |   15   0.6% |  4.702   1h14m |    335.09    82485    n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2025-08-09 00:48:57 (3296): mfaktc-win-64.exe exited; CPU time 1.656250
2025-08-09 00:48:57 (3296): app exit status: 0x1
2025-08-09 00:48:57 (3296): called boinc_finish(195)

</stderr_txt>
]]>