Task 42066656

Name	TF_75-76_701-711M_wu_45071_0
Workunit	38187790
Created	10 Dec 2025, 20:58:23 UTC
Sent	13 Dec 2025, 2:40:02 UTC
Report deadline	18 Dec 2025, 8:40:02 UTC
Received	17 Dec 2025, 6:55:20 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	248535
Run time	4 sec
CPU time
Validate state	Invalid
Credit	0.00
Device peak FLOPS	11,768.02 GFLOPS
Application version	TF v0.43 (cuda128)
Peak disk usage	3.55 MB

Stderr output

<core_client_version>8.2.8</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
 (0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2025-12-17 09:38:15 (184824): wrapper (7.24.26018): starting
2025-12-17 09:38:15 (184824): wrapper: running mfaktc-win-64.exe (-d 0)
2025-12-17 09:38:15 (184824): wrapper: created child process 172692
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       13.10

CUDA device info
  name                      NVIDIA GeForce RTX 4080 SUPER
  compute capability        8.9
  max threads per block     1024
  max shared memory per MP  102400 byte
  number of multiprocessors 80
  clock rate (CUDA cores)   2610MHz
  memory clock rate:        11501MHz
  memory bus width:         256 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=704235479 bit_min=75 bit_max=76 (10.87 GHz-days)
Starting trial factoring M704235479 from 2^75 to 2^76 (10.87 GHz-days)
 k_min =  26822655907740
 k_max =  53645311816159
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Dec 17 09:38 |    0   0.1% |  0.125    n.a. |   7823.38    82485    n.a.%
Dec 17 09:38 |    4   0.2% |  0.115    n.a. |   8503.67    82485    n.a.%
Dec 17 09:38 |    9   0.3% |  0.114    n.a. |   8578.27    82485    n.a.%
Dec 17 09:38 |   12   0.4% |  0.115    n.a. |   8503.67    82485    n.a.%
Dec 17 09:38 |   16   0.5% |  0.112    n.a. |   8731.45    82485    n.a.%
Dec 17 09:38 |   21   0.6% |  0.112    n.a. |   8731.45    82485    n.a.%
Dec 17 09:38 |   24   0.7% |  0.113    n.a. |   8654.18    82485    n.a.%
Dec 17 09:38 |   25   0.8% |  0.007    n.a. |  139703.21    82485    n.a.%
ERROR: cudaGetLastError() returned 700: an illegal memory access was encountered
2025-12-17 09:38:19 (184824): mfaktc-win-64.exe exited; CPU time 0.093750
2025-12-17 09:38:19 (184824): app exit status: 0x1
2025-12-17 09:38:19 (184824): called boinc_finish(195)

</stderr_txt>
]]>