Task 45194062
| Name | TF_75-76_757-767M_wu_118473_0 |
| Workunit | 40974626 |
| Created | 19 Jan 2026, 19:22:20 UTC |
| Sent | 23 Jan 2026, 16:02:48 UTC |
| Report deadline | 28 Jan 2026, 22:02:48 UTC |
| Received | 23 Jan 2026, 22:55:48 UTC |
| Server state | Over |
| Outcome | Computation error |
| Client state | Compute error |
| Exit status | 195 (0xc3) EXIT_CHILD_FAILED |
| Computer ID | 246988 |
| Run time | 31 sec |
| CPU time | 3 sec |
| Validate state | Invalid |
| Credit | 0.00 |
| Device peak FLOPS | 333.13 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 89.56 MB |
| Peak swap size | 187.29 MB |
| Peak disk usage | 4.96 MB |
Stderr output
<core_client_version>8.2.4</core_client_version>
<![CDATA[
<message>
The operating system cannot run (null).
(0xc3) - exit code 195 (0xc3)</message>
<stderr_txt>
2026-01-23 12:15:28 (19768): wrapper (7.24.26018): starting
2026-01-23 12:15:28 (19768): wrapper: running mfaktc-win-64.exe (-d 0)
2026-01-23 12:15:28 (19768): wrapper: created child process 23436
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 512 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
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 12.9
CUDA device info
name NVIDIA GeForce GTX 960M
compute capability 5.0
max threads per block 1024
max shared memory per MP 65536 bytes
number of multiprocessors 5
CUDA cores per MP 128
CUDA cores - total 640
clock rate (CUDA cores) 1176 MHz
memory clock rate: 2505 MHz
memory bus width: 128 bits
Automatic parameters
threads per grid 655360
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=763278553 bit_min=75 bit_max=76 (10.03 GHz-days)
Starting trial factoring M763278553 from 2^75 to 2^76 (10.03 GHz-days)
k_min = 24747801253560
k_max = 49495602509032
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jan 23 12:15 | 0 0.1% | 2.279 36m26s | 395.91 82485 n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2026-01-23 12:15:42 (19768): mfaktc-win-64.exe exited; CPU time 0.031250
2026-01-23 12:15:42 (19768): app exit status: 0x1
2026-01-23 12:15:42 (19768): called boinc_finish(195)
2026-01-23 15:14:59 (4704): wrapper (7.24.26018): starting
2026-01-23 15:15:01 (4704): wrapper: running mfaktc-win-64.exe (-d 0)
2026-01-23 15:15:01 (4704): wrapper: created child process 30888
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 512 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
Warning: Cannot read LegacyResultsTxt from mfaktc.ini, set to 0 by default
LegacyResultsTxt no
TimeStampInResults no
Warning: Cannot read TimestampOnSameLine from mfaktc.ini, set to 0 by default
TimestampOnSameLine no
Warning: Cannot read ResultsFileTimestampInterval from mfaktc.ini, set to 1 by default
CUDA version info
binary compiled for CUDA 12.8
CUDA runtime version 12.8
CUDA driver version 12.9
CUDA device info
name NVIDIA GeForce GTX 960M
compute capability 5.0
max threads per block 1024
max shared memory per MP 65536 bytes
number of multiprocessors 5
CUDA cores per MP 128
CUDA cores - total 640
clock rate (CUDA cores) 1176 MHz
memory clock rate: 2505 MHz
memory bus width: 128 bits
Automatic parameters
threads per grid 655360
GPUSievePrimes (adjusted) 82486
GPUsieve minimum exponent 1055144
running a simple self-test...
Self-test statistics
number of tests 104
successful tests 104
self-test PASSED!
got assignment: exp=763278553 bit_min=75 bit_max=76 (10.03 GHz-days)
Starting trial factoring M763278553 from 2^75 to 2^76 (10.03 GHz-days)
k_min = 24747801253560
k_max = 49495602509032
Using GPU kernel "barrett76_mul32_gs"
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jan 23 15:15 | 0 0.1% | 7.094 1h53m | 127.19 82485 n.a.%
ERROR: cudaGetLastError() returned 702: the launch timed out and was terminated
2026-01-23 15:15:21 (4704): mfaktc-win-64.exe exited; CPU time 3.109375
2026-01-23 15:15:21 (4704): app exit status: 0x1
2026-01-23 15:15:21 (4704): called boinc_finish(195)
</stderr_txt>
]]>
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