Task 56243108

Name	TF_76-77_164-182M_wu_24338_0
Workunit	50641462
Created	11 Jun 2026, 8:19:50 UTC
Sent	19 Jun 2026, 17:08:24 UTC
Report deadline	25 Jun 2026, 17:08:24 UTC
Received	20 Jun 2026, 18:02:56 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	255347
Run time	3 sec
CPU time
Validate state	Invalid
Credit	0.00
Device peak FLOPS	164.33 GFLOPS
Application version	TF v0.52 (cuda110)
Peak disk usage	2.77 MB

Stderr output

<core_client_version>8.0.4</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
2026-06-19 20:00:47 (2693): wrapper (7.24.26018): starting
2026-06-19 20:00:47 (2693): wrapper (7.24.26018): starting
2026-06-19 20:00:47 (2693): wrapper: running ./mfaktc.exe (-d 0)
2026-06-19 20:00:47 (2693): wrapper: created child process 2695
mfaktc v0.24.0 (64-bit build)

Compile-time options
  THREADS_PER_BLOCK         256
  SIEVE_SIZE_LIMIT          32 kiB
  SIEVE_SIZE                193154 bits
  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              256 Mib
  GPUSieveProcessSize       16 Kib
  Checkpoints               enabled
  CheckpointDelay           60 s
  WorkFileAddDelay          600 s
  Stages                    disabled
  StopAfterFactor           bit level
  PrintMode                 compact
  Logging                   disabled
  V5UserID                  (none)
  ComputerID                (none)
  AllowSleep                yes
  LegacyResultsTxt          no
  TimeStampInResults        no
  TimestampOnSameLine       no

CUDA version info
  binary compiled for CUDA  11.0
  CUDA runtime version      11.0
  CUDA driver version       11.4

CUDA device info
  name                      NVIDIA GeForce GT 750M
  compute capability        3.0
  max threads per block     1024
  max shared memory per MP  49152 bytes
  number of multiprocessors 2
  CUDA cores per MP         192
  CUDA cores - total        384
  clock rate (CUDA cores)   967 MHz
  memory clock rate:        2500 MHz
  memory bus width:         128 bits

Automatic parameters
  threads per grid          1048576

check_subcc_bug()
  input:  mystuff->h_RES[2..0] = 0x33333333 22222222 11111111
  output: mystuff->h_RES[5..3] = 0xDEADBEEF DEADBEEF DEADBEEF
  ERROR: output != input

  could be due to a bad software environment (CUDA Toolkit or graphics driver, or both)
  Configurations known to be bad:
    - CUDA 5.0 + 302.06.03 on all supported GPUs
      fixed in driver update after issue reported to Nvidia
    - CUDA 7.0 + 346.47, 346.59, 346.72 and 349.16 on Maxwell GPUs

2026-06-19 20:00:48 (2693): ./mfaktc.exe exited; CPU time 0.020453
2026-06-19 20:00:48 (2693): app exit status: 0x1
2026-06-19 20:00:48 (2693): called boinc_finish(195)

</stderr_txt>
]]>