Task 30738225

Name	TF_75-76_312-443M_wu_15815_0
Workunit	27884193
Created	9 Aug 2025, 9:43:44 UTC
Sent	10 Aug 2025, 7:57:51 UTC
Report deadline	15 Aug 2025, 13:57:51 UTC
Received	10 Aug 2025, 8:50:04 UTC
Server state	Over
Outcome	Computation error
Client state	Compute error
Exit status	195 (0xc3) EXIT_CHILD_FAILED
Computer ID	246881
Run time	3 min 7 sec
CPU time	2 sec
Validate state	Invalid
Credit	0.00
Device peak FLOPS	191.02 GFLOPS
Application version	TF v0.43 (cuda120)
Peak working set size	89.04 MB
Peak swap size	371.25 MB
Peak disk usage	3.43 MB

Stderr output

<core_client_version>8.0.2</core_client_version>
<![CDATA[
<message>
(unknown error) (0) - exit code 195 (0xc3)</message>
<stderr_txt>
2025-08-10 04:01:07 (5668): wrapper (7.24.26018): starting
2025-08-10 04:01:07 (5668): wrapper: running mfaktc-win-64.exe (-d 0)
2025-08-10 04:01:07 (5668): wrapper: created child process 7372
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       12.40

CUDA device info
  name                      Quadro K620
  compute capability        5.0
  max threads per block     1024
  max shared memory per MP  65536 byte
  number of multiprocessors 3
  CUDA cores per MP         128
  CUDA cores - total        384
  clock rate (CUDA cores)   1124MHz
  memory clock rate:        900MHz
  memory bus width:         128 bit

Automatic parameters
  threads per grid          786432
  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=439285703 bit_min=75 bit_max=76 (17.42 GHz-days)
Starting trial factoring M439285703 from 2^75 to 2^76 (17.42 GHz-days)
 k_min =  43000411353900
 k_max =  86000822710492
Using GPU kernel "barrett76_mul32_gs"
Date    Time | class   Pct |   time     ETA | GHz-d/day    Sieve     Wait
Aug 10 04:01 |    0   0.1% | 19.354   5h09m |     81.00    82485    n.a.%
Aug 10 04:01 |   12   0.2% | 18.384   4h53m |     85.28    82485    n.a.%
Aug 10 04:02 |   13   0.3% | 18.377   4h53m |     85.31    82485    n.a.%
Aug 10 04:02 |   16   0.4% | 17.393   4h37m |     90.14    82485    n.a.%
Aug 10 04:02 |   21   0.5% | 18.387   4h52m |     85.26    82485    n.a.%
Aug 10 04:03 |   25   0.6% | 18.392   4h52m |     85.24    82485    n.a.%
Aug 10 04:03 |   33   0.7% | 17.408   4h36m |     90.06    82485    n.a.%
Aug 10 04:03 |   37   0.8% | 18.421   4h52m |     85.11    82485    n.a.%
Aug 10 04:03 |   40   0.9% | 17.404   4h35m |     90.08    82485    n.a.%
Aug 10 04:04 |   45   1.0% | 11.131   2h56m |    140.84    82485    n.a.%
ERROR: cudaGetLastError() returned 999: unknown error
2025-08-10 04:04:13 (5668): mfaktc-win-64.exe exited; CPU time 2.562500
2025-08-10 04:04:13 (5668): app exit status: 0x1
2025-08-10 04:04:13 (5668): called boinc_finish(195)

</stderr_txt>
]]>