Task 36784765

Name	TF_75-76_550-560M_wu_26902_0
Workunit	33578957
Created	13 Oct 2025, 19:22:25 UTC
Sent	15 Oct 2025, 9:35:27 UTC
Report deadline	20 Oct 2025, 15:35:27 UTC
Received	15 Oct 2025, 9:37:50 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	9882
Run time	10 sec
CPU time
Validate state	Invalid
Credit	0.00
Device peak FLOPS	262.87 GFLOPS
Application version	TF v0.43 (cuda120)
Peak working set size	83.80 MB
Peak swap size	113.76 MB
Peak disk usage	3.43 MB

Stderr output

<core_client_version>8.2.4</core_client_version>
<![CDATA[
<message>
(unknown error) (0) - exit code 195 (0xc3)</message>
<stderr_txt>
2025-10-15 11:36:23 (9096): wrapper (7.24.26018): starting
2025-10-15 11:36:23 (9096): wrapper: running mfaktc-win-64.exe (-d 0)
2025-10-15 11:36:23 (9096): wrapper: created child process 2280
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       12.70

CUDA device info
  name                      NVIDIA GeForce GTX 950M
  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)   928MHz
  memory clock rate:        2505MHz
  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=551475137 bit_min=75 bit_max=76 (13.88 GHz-days)
Starting trial factoring M551475137 from 2^75 to 2^76 (13.88 GHz-days)
 k_min =  34252615689600
 k_max =  68505231384451
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Oct 15 11:36 |    0   0.1% |  3.349  53m32s |    372.89    82485    n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2025-10-15 11:36:31 (9096): mfaktc-win-64.exe exited; CPU time 0.015625
2025-10-15 11:36:31 (9096): app exit status: 0x1
2025-10-15 11:36:31 (9096): called boinc_finish(195)

</stderr_txt>
]]>