Task 52718137
| Name | TF_75-76_941-954M_wu_46618_0 |
| Workunit | 47821847 |
| Created | 11 Apr 2026, 20:54:55 UTC |
| Sent | 12 Apr 2026, 12:01:27 UTC |
| Report deadline | 17 Apr 2026, 18:01:27 UTC |
| Received | 12 Apr 2026, 23:08:13 UTC |
| Server state | Over |
| Outcome | Success |
| Client state | Done |
| Exit status | 0 (0x0) |
| Computer ID | 237204 |
| Run time | 1 min 2 sec |
| CPU time | 1 sec |
| Validate state | Valid |
| Credit | 4,500.00 |
| Device peak FLOPS | 2,657.44 GFLOPS |
| Application version | TF v0.49 (cuda128) |
| Peak working set size | 118.91 MB |
| Peak swap size | 419.63 MB |
| Peak disk usage | 5.06 MB |
Stderr output
<core_client_version>8.0.2</core_client_version>
<![CDATA[
<stderr_txt>
471 3m38s | 1549.20 82485 n.a.%
Apr 13 10:25 | 2391 52.0% | 0.469 3m36s | 1555.80 82485 n.a.%
Apr 13 10:25 | 2399 52.1% | 0.471 3m37s | 1549.20 82485 n.a.%
Apr 13 10:25 | 2400 52.2% | 0.472 3m37s | 1545.92 82485 n.a.%
Apr 13 10:25 | 2412 52.3% | 0.471 3m36s | 1549.20 82485 n.a.%
Apr 13 10:25 | 2415 52.4% | 0.472 3m36s | 1545.92 82485 n.a.%
Apr 13 10:25 | 2420 52.5% | 0.470 3m34s | 1552.49 82485 n.a.%
Apr 13 10:25 | 2424 52.6% | 0.472 3m35s | 1545.92 82485 n.a.%
Apr 13 10:25 | 2427 52.7% | 0.472 3m34s | 1545.92 82485 n.a.%
Apr 13 10:25 | 2435 52.8% | 0.473 3m34s | 1542.65 82485 n.a.%
Apr 13 10:25 | 2436 52.9% | 0.471 3m33s | 1549.20 82485 n.a.%
Apr 13 10:25 | 2444 53.0% | 0.472 3m33s | 1545.92 82485 n.a.%
Apr 13 10:25 | 2447 53.1% | 0.473 3m33s | 1542.65 82485 n.a.%
Apr 13 10:25 | 2456 53.2% | 0.473 3m32s | 1542.65 82485 n.a.%
Apr 13 10:25 | 2459 53.3% | 0.474 3m32s | 1539.39 82485 n.a.%
Apr 13 10:25 | 2471 53.4% | 0.471 3m31s | 1549.20 82485 n.a.%
Apr 13 10:25 | 2472 53.5% | 0.473 3m31s | 1542.65 82485 n.a.%
Apr 13 10:25 | 2475 53.6% | 0.505 3m45s | 1444.90 82485 n.a.%
Apr 13 10:25 | 2480 53.8% | 0.526 3m54s | 1387.21 82485 n.a.%
2026-04-13 10:31:47 (31156): wrapper (7.24.26018): starting
2026-04-13 10:31:47 (31156): wrapper: running mfaktc-win-64.exe (-d 0)
2026-04-13 10:31:47 (31156): wrapper: created child process 20372
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 12.8
CUDA device info
name NVIDIA GeForce GTX 1080 Ti
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 28
clock rate (CUDA cores) 1683 MHz
memory clock rate: 5505 MHz
memory bus width: 352 bits
Automatic parameters
threads per grid 917504
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=943831309 bit_min=75 bit_max=76 (8.11 GHz-days)
Starting trial factoring M943831309 from 2^75 to 2^76 (8.11 GHz-days)
k_min = 20013603862560
k_max = 40027207725270
Using GPU kernel "barrett76_mul32_gs"
found a valid checkpoint file!
last finished class was: 2259
no factors found so far.
previous work took 251451 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Apr 13 10:31 | 2267 49.3% | 0.572 4m39s | 1275.65 82485 n.a.%
Apr 13 10:31 | 2276 49.4% | 0.514 4m10s | 1419.60 82485 n.a.%
Apr 13 10:31 | 2279 49.5% | 0.521 4m13s | 1400.52 82485 n.a.%
Apr 13 10:31 | 2280 49.6% | 0.517 4m10s | 1411.36 82485 n.a.%
Apr 13 10:31 | 2291 49.7% | 0.519 4m11s | 1405.92 82485 n.a.%
Apr 13 10:31 | 2295 49.8% | 0.498 4m00s | 1465.21 82485 n.a.%
Apr 13 10:31 | 2300 49.9% | 0.469 3m46s | 1555.80 82485 n.a.%
Apr 13 10:31 | 2304 50.0% | 0.468 3m45s | 1559.13 82485 n.a.%
Apr 13 10:31 | 2307 50.1% | 0.470 3m45s | 1552.49 82485 n.a.%
Apr 13 10:31 | 2312 50.2% | 0.468 3m44s | 1559.13 82485 n.a.%
Apr 13 10:31 | 2315 50.3% | 0.470 3m44s | 1552.49 82485 n.a.%
Apr 13 10:31 | 2316 50.4% | 0.473 3m45s | 1542.65 82485 n.a.%
Apr 13 10:31 | 2324 50.5% | 0.468 3m42s | 1559.13 82485 n.a.%
Apr 13 10:31 | 2331 50.6% | 0.469 3m42s | 1555.80 82485 n.a.%
Apr 13 10:31 | 2336 50.7% | 0.469 3m42s | 1555.80 82485 n.a.%
Apr 13 10:31 | 2339 50.8% | 0.470 3m42s | 1552.49 82485 n.a.%
Apr 13 10:31 | 2340 50.9% | 0.470 3m41s | 1552.49 82485 n.a.%
Apr 13 10:31 | 2351 51.0% | 0.469 3m40s | 1555.80 82485 n.a.%
Apr 13 10:31 | 2360 51.1% | 0.469 3m40s | 1555.80 82485 n.a.%
Apr 13 10:31 | 2364 51.2% | 0.470 3m40s | 1552.49 82485 n.a.%
Apr 13 10:31 | 2367 51.4% | 0.469 3m39s | 1555.80 82485 n.a.%
Apr 13 10:32 | 2372 51.5% | 0.471 3m39s | 1549.20 82485 n.a.%
Apr 13 10:32 | 2375 51.6% | 0.470 3m39s | 1552.49 82485 n.a.%
Apr 13 10:32 | 2379 51.7% | 0.470 3m38s | 1552.49 82485 n.a.%
Apr 13 10:32 | 2384 51.8% | 0.470 3m38s | 1552.49 82485 n.a.%
Apr 13 10:32 | 2387 51.9% | 0.470 3m37s | 1552.49 82485 n.a.%
Apr 13 10:32 | 2391 52.0% | 0.490 3m46s | 1489.13 82485 n.a.%
Apr 13 10:32 | 2399 52.1% | 0.706 5m25s | 1033.53 82485 n.a.%
Apr 13 10:32 | 2400 52.2% | 0.535 4m06s | 1363.87 82485 n.a.%
Apr 13 10:32 | 2412 52.3% | 0.541 4m08s | 1348.75 82485 n.a.%
Apr 13 10:32 | 2415 52.4% | 0.538 4m06s | 1356.27 82485 n.a.%
Apr 13 10:32 | 2420 52.5% | 0.536 4m04s | 1361.33 82485 n.a.%
Apr 13 10:32 | 2424 52.6% | 0.563 4m16s | 1296.04 82485 n.a.%
Apr 13 10:32 | 2427 52.7% | 0.558 4m13s | 1307.66 82485 n.a.%
Apr 13 10:32 | 2435 52.8% | 0.558 4m13s | 1307.66 82485 n.a.%
Apr 13 10:32 | 2436 52.9% | 0.520 3m55s | 1403.22 82485 n.a.%
Apr 13 10:32 | 2444 53.0% | 0.521 3m55s | 1400.52 82485 n.a.%
Apr 13 10:32 | 2447 53.1% | 0.518 3m53s | 1408.63 82485 n.a.%
Apr 13 10:32 | 2456 53.2% | 0.523 3m55s | 1395.17 82485 n.a.%
Apr 13 10:32 | 2459 53.3% | 0.518 3m52s | 1408.63 82485 n.a.%
Apr 13 10:32 | 2471 53.4% | 0.520 3m52s | 1403.22 82485 n.a.%
Apr 13 10:32 | 2472 53.5% | 0.517 3m51s | 1411.36 82485 n.a.%
Apr 13 10:32 | 2475 53.6% | 0.524 3m53s | 1392.50 82485 n.a.%
Apr 13 10:32 | 2480 53.8% | 0.521 3m51s | 1400.52 82485 n.a.%
Apr 13 10:32 | 2487 53.9% | 0.520 3m50s | 1403.22 82485 n.a.%
Apr 13 10:32 | 2492 54.0% | 0.525 3m52s | 1389.85 82485 n.a.%
Apr 13 10:32 | 2496 54.1% | 0.518 3m48s | 1408.63 82485 n.a.%
Apr 13 10:32 | 2499 54.2% | 0.522 3m50s | 1397.84 82485 n.a.%
Apr 13 10:32 | 2504 54.3% | 0.517 3m47s | 1411.36 82485 n.a.%
Apr 13 10:32 | 2507 54.4% | 0.526 3m50s | 1387.21 82485 n.a.%
Apr 13 10:32 | 2511 54.5% | 0.519 3m47s | 1405.92 82485 n.a.%
Apr 13 10:32 | 2519 54.6% | 0.525 3m49s | 1389.85 82485 n.a.%
Apr 13 10:32 | 2520 54.7% | 0.518 3m45s | 1408.63 82485 n.a.%
Apr 13 10:32 | 2531 54.8% | 0.524 3m47s | 1392.50 82485 n.a.%
Apr 13 10:32 | 2532 54.9% | 0.523 3m46s | 1395.17 82485 n.a.%
Apr 13 10:32 | 2535 55.0% | 0.522 3m46s | 1397.84 82485 n.a.%
Apr 13 10:32 | 2540 55.1% | 0.525 3m46s | 1389.85 82485 n.a.%
Apr 13 10:32 | 2547 55.2% | 0.522 3m44s | 1397.84 82485 n.a.%
Apr 13 10:32 | 2552 55.3% | 0.523 3m44s | 1395.17 82485 n.a.%
Apr 13 10:32 | 2555 55.4% | 0.520 3m43s | 1403.22 82485 n.a.%
Apr 13 10:32 | 2556 55.5% | 0.526 3m45s | 1387.21 82485 n.a.%
Apr 13 10:32 | 2559 55.6% | 0.520 3m42s | 1403.22 82485 n.a.%
Apr 13 10:32 | 2564 55.7% | 0.527 3m44s | 1384.58 82485 n.a.%
Apr 13 10:32 | 2567 55.8% | 0.474 3m21s | 1539.39 82485 n.a.%
Apr 13 10:32 | 2571 55.9% | 0.473 3m20s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2576 56.0% | 0.473 3m20s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2580 56.1% | 0.474 3m20s | 1539.39 82485 n.a.%
Apr 13 10:32 | 2591 56.2% | 0.473 3m19s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2592 56.4% | 0.478 3m20s | 1526.51 82485 n.a.%
Apr 13 10:32 | 2595 56.5% | 0.473 3m18s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2604 56.6% | 0.473 3m17s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2612 56.7% | 0.473 3m17s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2615 56.8% | 0.473 3m16s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2619 56.9% | 0.473 3m16s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2624 57.0% | 0.474 3m16s | 1539.39 82485 n.a.%
Apr 13 10:32 | 2631 57.1% | 0.473 3m15s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2636 57.2% | 0.474 3m15s | 1539.39 82485 n.a.%
Apr 13 10:32 | 2639 57.3% | 0.473 3m14s | 1542.65 82485 n.a.%
Apr 13 10:32 | 2640 57.4% | 0.489 3m20s | 1492.17 82485 n.a.%
Apr 13 10:32 | 2651 57.5% | 0.519 3m32s | 1405.92 82485 n.a.%
Apr 13 10:32 | 2652 57.6% | 0.510 3m28s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2655 57.7% | 0.507 3m26s | 1439.20 82485 n.a.%
Apr 13 10:32 | 2664 57.8% | 0.509 3m26s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2667 57.9% | 0.508 3m25s | 1436.36 82485 n.a.%
Apr 13 10:32 | 2672 58.0% | 0.509 3m25s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2675 58.1% | 0.509 3m25s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2676 58.2% | 0.510 3m25s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2679 58.3% | 0.509 3m24s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2687 58.4% | 0.509 3m23s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2696 58.5% | 0.511 3m23s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2699 58.6% | 0.509 3m22s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2700 58.8% | 0.508 3m21s | 1436.36 82485 n.a.%
Apr 13 10:32 | 2711 58.9% | 0.507 3m20s | 1439.20 82485 n.a.%
Apr 13 10:32 | 2720 59.0% | 0.509 3m21s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2724 59.1% | 0.510 3m20s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2727 59.2% | 0.511 3m20s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2732 59.3% | 0.510 3m19s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2735 59.4% | 0.508 3m18s | 1436.36 82485 n.a.%
Apr 13 10:32 | 2736 59.5% | 0.510 3m18s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2739 59.6% | 0.511 3m18s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2744 59.7% | 0.511 3m18s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2751 59.8% | 0.511 3m17s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2756 59.9% | 0.513 3m18s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2760 60.0% | 0.511 3m16s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2771 60.1% | 0.509 3m15s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2772 60.2% | 0.510 3m15s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2780 60.3% | 0.509 3m14s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2784 60.4% | 0.511 3m14s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2787 60.5% | 0.511 3m14s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2795 60.6% | 0.510 3m13s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2799 60.7% | 0.510 3m12s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2804 60.8% | 0.510 3m12s | 1430.73 82485 n.a.%
Apr 13 10:32 | 2807 60.9% | 0.515 3m13s | 1416.84 82485 n.a.%
Apr 13 10:32 | 2811 61.0% | 0.512 3m11s | 1425.14 82485 n.a.%
Apr 13 10:32 | 2816 61.1% | 0.513 3m11s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2819 61.2% | 0.527 3m16s | 1384.58 82485 n.a.%
Apr 13 10:32 | 2820 61.4% | 0.478 2m57s | 1526.51 82485 n.a.%
Apr 13 10:32 | 2832 61.5% | 0.475 2m56s | 1536.15 82485 n.a.%
Apr 13 10:32 | 2835 61.6% | 0.495 3m03s | 1474.09 82485 n.a.%
Apr 13 10:32 | 2840 61.7% | 0.519 3m11s | 1405.92 82485 n.a.%
Apr 13 10:32 | 2844 61.8% | 0.514 3m09s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2855 61.9% | 0.514 3m08s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2856 62.0% | 0.514 3m08s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2864 62.1% | 0.513 3m07s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2867 62.2% | 0.511 3m05s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2871 62.3% | 0.514 3m06s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2876 62.4% | 0.509 3m04s | 1433.54 82485 n.a.%
Apr 13 10:32 | 2879 62.5% | 0.513 3m05s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2892 62.6% | 0.511 3m03s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2895 62.7% | 0.514 3m04s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2900 62.8% | 0.515 3m04s | 1416.84 82485 n.a.%
Apr 13 10:32 | 2904 62.9% | 0.513 3m03s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2907 63.0% | 0.511 3m01s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2912 63.1% | 0.512 3m01s | 1425.14 82485 n.a.%
Apr 13 10:32 | 2916 63.2% | 0.515 3m02s | 1416.84 82485 n.a.%
Apr 13 10:32 | 2919 63.3% | 0.513 3m01s | 1422.36 82485 n.a.%
Apr 13 10:32 | 2927 63.4% | 0.514 3m00s | 1419.60 82485 n.a.%
Apr 13 10:32 | 2931 63.5% | 0.511 2m59s | 1427.93 82485 n.a.%
Apr 13 10:32 | 2939 63.6% | 0.515 3m00s | 1416.84 82485 n.a.%
Apr 13 10:33 | 2940 63.8% | 0.516 3m00s | 1414.09 82485 n.a.%
Apr 13 10:33 | 2951 63.9% | 0.512 2m58s | 1425.14 82485 n.a.%
Apr 13 10:33 | 2952 64.0% | 0.515 2m58s | 1416.84 82485 n.a.%
Apr 13 10:33 | 2955 64.1% | 0.513 2m57s | 1422.36 82485 n.a.%
Apr 13 10:33 | 2960 64.2% | 0.513 2m56s | 1422.36 82485 n.a.%
Apr 13 10:33 | 2967 64.3% | 0.518 2m58s | 1408.63 82485 n.a.%
Apr 13 10:33 | 2972 64.4% | 0.541 3m05s | 1348.75 82485 n.a.%
Apr 13 10:33 | 2975 64.5% | 0.540 3m04s | 1351.25 82485 n.a.%
Apr 13 10:33 | 2976 64.6% | 0.541 3m04s | 1348.75 82485 n.a.%
Apr 13 10:33 | 2984 64.7% | 0.525 2m58s | 1389.85 82485 n.a.%
Apr 13 10:33 | 2987 64.8% | 0.515 2m54s | 1416.84 82485 n.a.%
Apr 13 10:33 | 2991 64.9% | 0.512 2m53s | 1425.14 82485 n.a.%
Apr 13 10:33 | 2996 65.0% | 0.513 2m52s | 1422.36 82485 n.a.%
Apr 13 10:33 | 3000 65.1% | 0.517 2m53s | 1411.36 82485 n.a.%
Apr 13 10:33 | 3011 65.2% | 0.516 2m52s | 1414.09 82485 n.a.%
Apr 13 10:33 | 3015 65.3% | 0.516 2m52s | 1414.09 82485 n.a.%
Apr 13 10:33 | 3024 65.4% | 0.522 2m53s | 1397.84 82485 n.a.%
Apr 13 10:33 | 3032 65.5% | 0.477 2m38s | 1529.71 82485 n.a.%
Apr 13 10:33 | 3035 65.6% | 0.476 2m37s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3036 65.7% | 0.476 2m37s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3039 65.8% | 0.475 2m36s | 1536.15 82485 n.a.%
Apr 13 10:33 | 3044 65.9% | 0.476 2m36s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3047 66.0% | 0.478 2m36s | 1526.51 82485 n.a.%
Apr 13 10:33 | 3051 66.1% | 0.476 2m35s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3059 66.2% | 0.476 2m34s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3060 66.4% | 0.476 2m34s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3071 66.5% | 0.476 2m33s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3072 66.6% | 0.476 2m33s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3075 66.7% | 0.476 2m32s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3080 66.8% | 0.476 2m32s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3084 66.9% | 0.477 2m32s | 1529.71 82485 n.a.%
Apr 13 10:33 | 3087 67.0% | 0.476 2m31s | 1532.93 82485 n.a.%
Apr 13 10:33 | 3092 67.1% | 0.515 2m43s | 1416.84 82485 n.a.%
Apr 13 10:33 | 3095 67.2% | 0.532 2m48s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3096 67.3% | 0.529 2m46s | 1379.34 82485 n.a.%
Apr 13 10:33 | 3099 67.4% | 0.532 2m47s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3107 67.5% | 0.530 2m45s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3116 67.6% | 0.531 2m45s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3119 67.7% | 0.531 2m45s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3120 67.8% | 0.528 2m43s | 1381.96 82485 n.a.%
Apr 13 10:33 | 3131 67.9% | 0.530 2m43s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3135 68.0% | 0.528 2m42s | 1381.96 82485 n.a.%
Apr 13 10:33 | 3140 68.1% | 0.532 2m43s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3147 68.2% | 0.526 2m40s | 1387.21 82485 n.a.%
Apr 13 10:33 | 3152 68.3% | 0.530 2m41s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3156 68.4% | 0.529 2m40s | 1379.34 82485 n.a.%
Apr 13 10:33 | 3159 68.5% | 0.531 2m40s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3164 68.6% | 0.530 2m40s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3171 68.8% | 0.530 2m39s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3176 68.9% | 0.531 2m39s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3179 69.0% | 0.612 3m02s | 1192.28 82485 n.a.%
Apr 13 10:33 | 3180 69.1% | 0.533 2m38s | 1368.99 82485 n.a.%
Apr 13 10:33 | 3191 69.2% | 0.529 2m37s | 1379.34 82485 n.a.%
Apr 13 10:33 | 3192 69.3% | 0.532 2m37s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3200 69.4% | 0.529 2m36s | 1379.34 82485 n.a.%
Apr 13 10:33 | 3204 69.5% | 0.528 2m35s | 1381.96 82485 n.a.%
Apr 13 10:33 | 3207 69.6% | 0.530 2m35s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3212 69.7% | 0.532 2m35s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3215 69.8% | 0.530 2m34s | 1376.74 82485 n.a.%
Apr 13 10:33 | 3219 69.9% | 0.531 2m33s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3224 70.0% | 0.528 2m32s | 1381.96 82485 n.a.%
Apr 13 10:33 | 3227 70.1% | 0.534 2m33s | 1366.43 82485 n.a.%
Apr 13 10:33 | 3231 70.2% | 0.528 2m31s | 1381.96 82485 n.a.%
Apr 13 10:33 | 3236 70.3% | 0.529 2m31s | 1379.34 82485 n.a.%
Apr 13 10:33 | 3239 70.4% | 0.531 2m31s | 1374.15 82485 n.a.%
Apr 13 10:33 | 3240 70.5% | 0.532 2m31s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3252 70.6% | 0.532 2m30s | 1371.56 82485 n.a.%
Apr 13 10:33 | 3255 70.7% | 0.533 2m30s | 1368.99 82485 n.a.%
Apr 13 10:33 | 3260 70.8% | 0.499 2m20s | 1462.27 82485 n.a.%
Apr 13 10:33 | 3264 70.9% | 0.479 2m14s | 1523.32 82485 n.a.%
Apr 13 10:33 | 3267 71.0% | 0.478 2m13s | 1526.51 82485 n.a.%
Apr 13 10:33 | 3275 71.1% | 0.479 2m13s | 1523.32 82485 n.a.%
Apr 13 10:33 | 3284 71.2% | 0.478 2m12s | 1526.51 82485 n.a.%
Apr 13 10:33 | 3291 71.4% | 0.479 2m12s | 1523.32 82485 n.a.%
Apr 13 10:33 | 3296 71.5% | 0.525 2m24s | 1389.85 82485 n.a.%
Apr 13 10:33 | 3299 71.6% | 0.516 2m21s | 1414.09 82485 n.a.%
Apr 13 10:33 | 3311 71.7% | 0.514 2m20s | 1419.60 82485 n.a.%
Apr 13 10:33 | 3312 71.8% | 0.515 2m20s | 1416.84 82485 n.a.%
Apr 13 10:33 | 3315 71.9% | 0.515 2m19s | 1416.84 82485 n.a.%
Apr 13 10:33 | 3324 72.0% | 0.517 2m19s | 1411.36 82485 n.a.%
Apr 13 10:33 | 3327 72.1% | 0.515 2m18s | 1416.84 82485 n.a.%
Apr 13 10:33 | 3332 72.2% | 0.524 2m20s | 1392.50 82485 n.a.%
Apr 13 10:33 | 3336 72.3% | 0.627 2m47s | 1163.75 82485 n.a.%
Apr 13 10:33 | 3339 72.4% | 0.497 2m12s | 1468.15 82485 n.a.%
Apr 13 10:33 | 3344 72.5% | 0.765 3m22s | 953.82 82485 n.a.%
Apr 13 10:33 | 3347 72.6% | 0.568 2m29s | 1284.63 82485 n.a.%
2026-04-13 10:44:31 (21952): wrapper (7.24.26018): starting
2026-04-13 10:44:31 (21952): wrapper: running mfaktc-win-64.exe (-d 0)
2026-04-13 10:44:31 (21952): wrapper: created child process 10352
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 12.8
CUDA device info
name NVIDIA GeForce GTX 1080 Ti
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 28
clock rate (CUDA cores) 1683 MHz
memory clock rate: 5505 MHz
memory bus width: 352 bits
Automatic parameters
threads per grid 917504
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=943831309 bit_min=75 bit_max=76 (8.11 GHz-days)
Starting trial factoring M943831309 from 2^75 to 2^76 (8.11 GHz-days)
k_min = 20013603862560
k_max = 40027207725270
Using GPU kernel "barrett76_mul32_gs"
found a valid checkpoint file!
last finished class was: 2835
no factors found so far.
previous work took 311550 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Apr 13 10:44 | 2840 61.7% | 0.523 3m12s | 1395.17 82485 n.a.%
Apr 13 10:44 | 2844 61.8% | 0.465 2m51s | 1569.19 82485 n.a.%
Apr 13 10:44 | 2855 61.9% | 0.468 2m51s | 1559.13 82485 n.a.%
Apr 13 10:44 | 2856 62.0% | 0.469 2m51s | 1555.80 82485 n.a.%
Apr 13 10:44 | 2864 62.1% | 0.471 2m51s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2867 62.2% | 0.469 2m50s | 1555.80 82485 n.a.%
Apr 13 10:44 | 2871 62.3% | 0.470 2m50s | 1552.49 82485 n.a.%
Apr 13 10:44 | 2876 62.4% | 0.471 2m50s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2879 62.5% | 0.471 2m50s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2892 62.6% | 0.471 2m49s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2895 62.7% | 0.469 2m48s | 1555.80 82485 n.a.%
Apr 13 10:44 | 2900 62.8% | 0.471 2m48s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2904 62.9% | 0.471 2m48s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2907 63.0% | 0.470 2m47s | 1552.49 82485 n.a.%
Apr 13 10:44 | 2912 63.1% | 0.471 2m47s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2916 63.2% | 0.469 2m46s | 1555.80 82485 n.a.%
Apr 13 10:44 | 2919 63.3% | 0.472 2m46s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2927 63.4% | 0.472 2m46s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2931 63.5% | 0.471 2m45s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2939 63.6% | 0.470 2m44s | 1552.49 82485 n.a.%
Apr 13 10:44 | 2940 63.8% | 0.470 2m44s | 1552.49 82485 n.a.%
Apr 13 10:44 | 2951 63.9% | 0.472 2m44s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2952 64.0% | 0.474 2m44s | 1539.39 82485 n.a.%
Apr 13 10:44 | 2955 64.1% | 0.472 2m43s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2960 64.2% | 0.469 2m41s | 1555.80 82485 n.a.%
Apr 13 10:44 | 2967 64.3% | 0.471 2m42s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2972 64.4% | 0.471 2m41s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2975 64.5% | 0.471 2m41s | 1549.20 82485 n.a.%
Apr 13 10:44 | 2976 64.6% | 0.472 2m40s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2984 64.7% | 0.470 2m39s | 1552.49 82485 n.a.%
Apr 13 10:44 | 2987 64.8% | 0.472 2m40s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2991 64.9% | 0.472 2m39s | 1545.92 82485 n.a.%
Apr 13 10:44 | 2996 65.0% | 0.472 2m39s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3000 65.1% | 0.470 2m37s | 1552.49 82485 n.a.%
Apr 13 10:44 | 3011 65.2% | 0.472 2m38s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3015 65.3% | 0.472 2m37s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3024 65.4% | 0.471 2m36s | 1549.20 82485 n.a.%
Apr 13 10:44 | 3032 65.5% | 0.472 2m36s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3035 65.6% | 0.470 2m35s | 1552.49 82485 n.a.%
Apr 13 10:44 | 3036 65.7% | 0.471 2m35s | 1549.20 82485 n.a.%
Apr 13 10:44 | 3039 65.8% | 0.472 2m35s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3044 65.9% | 0.472 2m34s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3047 66.0% | 0.472 2m34s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3051 66.1% | 0.470 2m33s | 1552.49 82485 n.a.%
Apr 13 10:44 | 3059 66.2% | 0.472 2m33s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3060 66.4% | 0.472 2m32s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3071 66.5% | 0.472 2m32s | 1545.92 82485 n.a.%
Apr 13 10:44 | 3072 66.6% | 0.470 2m31s | 1552.49 82485 n.a.%
Apr 13 10:44 | 3075 66.7% | 0.473 2m31s | 1542.65 82485 n.a.%
Apr 13 10:44 | 3080 66.8% | 0.475 2m32s | 1536.15 82485 n.a.%
Apr 13 10:44 | 3084 66.9% | 0.475 2m31s | 1536.15 82485 n.a.%
Apr 13 10:44 | 3087 67.0% | 0.475 2m31s | 1536.15 82485 n.a.%
Apr 13 10:44 | 3092 67.1% | 0.473 2m29s | 1542.65 82485 n.a.%
Apr 13 10:44 | 3095 67.2% | 0.475 2m30s | 1536.15 82485 n.a.%
Apr 13 10:44 | 3096 67.3% | 0.475 2m29s | 1536.15 82485 n.a.%
Apr 13 10:44 | 3099 67.4% | 0.476 2m29s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3107 67.5% | 0.476 2m29s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3116 67.6% | 0.475 2m28s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3119 67.7% | 0.476 2m28s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3120 67.8% | 0.476 2m27s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3131 67.9% | 0.476 2m27s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3135 68.0% | 0.475 2m26s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3140 68.1% | 0.490 2m30s | 1489.13 82485 n.a.%
Apr 13 10:45 | 3147 68.2% | 0.502 2m33s | 1453.53 82485 n.a.%
Apr 13 10:45 | 3152 68.3% | 0.497 2m31s | 1468.15 82485 n.a.%
Apr 13 10:45 | 3156 68.4% | 0.504 2m33s | 1447.76 82485 n.a.%
Apr 13 10:45 | 3159 68.5% | 0.490 2m28s | 1489.13 82485 n.a.%
Apr 13 10:45 | 3164 68.6% | 0.474 2m23s | 1539.39 82485 n.a.%
Apr 13 10:45 | 3171 68.8% | 0.476 2m23s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3176 68.9% | 0.476 2m22s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3179 69.0% | 0.476 2m22s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3180 69.1% | 0.476 2m21s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3191 69.2% | 0.474 2m20s | 1539.39 82485 n.a.%
Apr 13 10:45 | 3192 69.3% | 0.476 2m20s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3200 69.4% | 0.476 2m20s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3204 69.5% | 0.476 2m19s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3207 69.6% | 0.477 2m19s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3212 69.7% | 0.474 2m18s | 1539.39 82485 n.a.%
Apr 13 10:45 | 3215 69.8% | 0.476 2m18s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3219 69.9% | 0.477 2m18s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3224 70.0% | 0.476 2m17s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3227 70.1% | 0.477 2m17s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3231 70.2% | 0.489 2m20s | 1492.17 82485 n.a.%
Apr 13 10:45 | 3236 70.3% | 0.502 2m23s | 1453.53 82485 n.a.%
Apr 13 10:45 | 3239 70.4% | 0.505 2m23s | 1444.90 82485 n.a.%
Apr 13 10:45 | 3240 70.5% | 0.501 2m22s | 1456.43 82485 n.a.%
Apr 13 10:45 | 3252 70.6% | 0.486 2m17s | 1501.38 82485 n.a.%
Apr 13 10:45 | 3255 70.7% | 0.477 2m14s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3260 70.8% | 0.475 2m13s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3264 70.9% | 0.477 2m13s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3267 71.0% | 0.477 2m13s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3275 71.1% | 0.477 2m12s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3284 71.2% | 0.477 2m12s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3291 71.4% | 0.475 2m11s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3296 71.5% | 0.477 2m11s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3299 71.6% | 0.477 2m10s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3311 71.7% | 0.477 2m10s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3312 71.8% | 0.476 2m09s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3315 71.9% | 0.476 2m09s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3324 72.0% | 0.477 2m08s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3327 72.1% | 0.478 2m08s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3332 72.2% | 0.477 2m07s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3336 72.3% | 0.475 2m06s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3339 72.4% | 0.562 2m29s | 1298.35 82485 n.a.%
Apr 13 10:45 | 3344 72.5% | 0.514 2m16s | 1419.60 82485 n.a.%
Apr 13 10:45 | 3347 72.6% | 0.478 2m06s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3351 72.7% | 0.478 2m05s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3359 72.8% | 0.477 2m04s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3360 72.9% | 0.475 2m04s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3371 73.0% | 0.477 2m04s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3372 73.1% | 0.478 2m03s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3380 73.2% | 0.478 2m03s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3387 73.3% | 0.477 2m02s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3392 73.4% | 0.475 2m01s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3395 73.5% | 0.478 2m01s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3396 73.6% | 0.477 2m01s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3399 73.8% | 0.477 2m00s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3404 73.9% | 0.478 2m00s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3407 74.0% | 0.476 1m59s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3411 74.1% | 0.477 1m59s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3416 74.2% | 0.477 1m58s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3420 74.3% | 0.477 1m58s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3431 74.4% | 0.478 1m58s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3432 74.5% | 0.477 1m57s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3435 74.6% | 0.478 1m57s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3444 74.7% | 0.477 1m56s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3455 74.8% | 0.478 1m56s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3456 74.9% | 0.477 1m55s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3459 75.0% | 0.476 1m54s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3464 75.1% | 0.478 1m54s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3467 75.2% | 0.477 1m54s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3471 75.3% | 0.477 1m53s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3476 75.4% | 0.478 1m53s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3479 75.5% | 0.476 1m52s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3480 75.6% | 0.477 1m52s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3491 75.7% | 0.477 1m51s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3492 75.8% | 0.478 1m51s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3495 75.9% | 0.478 1m50s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3500 76.0% | 0.475 1m49s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3504 76.1% | 0.478 1m49s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3512 76.2% | 0.478 1m49s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3515 76.4% | 0.477 1m48s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3516 76.5% | 0.477 1m48s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3519 76.6% | 0.475 1m47s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3527 76.7% | 0.477 1m47s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3536 76.8% | 0.478 1m47s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3539 76.9% | 0.477 1m46s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3555 77.0% | 0.477 1m45s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3560 77.1% | 0.475 1m45s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3564 77.2% | 0.477 1m44s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3567 77.3% | 0.477 1m44s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3572 77.4% | 0.477 1m44s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3575 77.5% | 0.477 1m43s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3576 77.6% | 0.476 1m42s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3579 77.7% | 0.478 1m42s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3591 77.8% | 0.477 1m42s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3596 77.9% | 0.478 1m41s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3599 78.0% | 0.475 1m40s | 1536.15 82485 n.a.%
Apr 13 10:45 | 3600 78.1% | 0.478 1m40s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3611 78.2% | 0.478 1m40s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3612 78.3% | 0.478 1m39s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3620 78.4% | 0.478 1m39s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3624 78.5% | 0.476 1m38s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3627 78.6% | 0.478 1m38s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3632 78.8% | 0.478 1m38s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3635 78.9% | 0.478 1m37s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3644 79.0% | 0.479 1m37s | 1523.32 82485 n.a.%
Apr 13 10:45 | 3647 79.1% | 0.476 1m36s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3651 79.2% | 0.479 1m36s | 1523.32 82485 n.a.%
Apr 13 10:45 | 3656 79.3% | 0.478 1m35s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3659 79.4% | 0.478 1m35s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3660 79.5% | 0.478 1m34s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3675 79.6% | 0.477 1m33s | 1529.71 82485 n.a.%
Apr 13 10:45 | 3680 79.7% | 0.478 1m33s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3684 79.8% | 0.480 1m33s | 1520.15 82485 n.a.%
Apr 13 10:45 | 3687 79.9% | 0.480 1m33s | 1520.15 82485 n.a.%
Apr 13 10:45 | 3695 80.0% | 0.479 1m32s | 1523.32 82485 n.a.%
Apr 13 10:45 | 3696 80.1% | 0.476 1m31s | 1532.93 82485 n.a.%
Apr 13 10:45 | 3704 80.2% | 0.478 1m31s | 1526.51 82485 n.a.%
Apr 13 10:45 | 3707 80.3% | 0.479 1m31s | 1523.32 82485 n.a.%
Apr 13 10:45 | 3711 80.4% | 0.478 1m30s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3719 80.5% | 0.477 1m29s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3731 80.6% | 0.477 1m29s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3732 80.7% | 0.479 1m29s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3735 80.8% | 0.477 1m28s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3740 80.9% | 0.480 1m28s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3744 81.0% | 0.478 1m27s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3747 81.1% | 0.493 1m29s | 1480.07 82485 n.a.%
Apr 13 10:46 | 3752 81.2% | 0.502 1m30s | 1453.53 82485 n.a.%
Apr 13 10:46 | 3756 81.4% | 0.507 1m31s | 1439.20 82485 n.a.%
Apr 13 10:46 | 3759 81.5% | 0.506 1m30s | 1442.04 82485 n.a.%
Apr 13 10:46 | 3764 81.6% | 0.488 1m26s | 1495.23 82485 n.a.%
Apr 13 10:46 | 3767 81.7% | 0.480 1m24s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3779 81.8% | 0.476 1m23s | 1532.93 82485 n.a.%
Apr 13 10:46 | 3780 81.9% | 0.478 1m23s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3791 82.0% | 0.478 1m23s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3792 82.1% | 0.479 1m22s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3795 82.2% | 0.481 1m22s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3800 82.3% | 0.478 1m21s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3807 82.4% | 0.480 1m21s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3812 82.5% | 0.480 1m21s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3816 82.6% | 0.480 1m20s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3819 82.7% | 0.479 1m20s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3824 82.8% | 0.477 1m19s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3827 82.9% | 0.480 1m19s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3831 83.0% | 0.479 1m18s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3836 83.1% | 0.478 1m17s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3840 83.2% | 0.481 1m17s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3851 83.3% | 0.503 1m20s | 1450.64 82485 n.a.%
Apr 13 10:46 | 3852 83.4% | 0.522 1m23s | 1397.84 82485 n.a.%
Apr 13 10:46 | 3855 83.5% | 0.520 1m22s | 1403.22 82485 n.a.%
Apr 13 10:46 | 3864 83.6% | 0.519 1m21s | 1405.92 82485 n.a.%
Apr 13 10:46 | 3872 83.8% | 0.480 1m15s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3875 83.9% | 0.481 1m15s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3876 84.0% | 0.479 1m14s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3879 84.1% | 0.480 1m13s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3884 84.2% | 0.478 1m13s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3887 84.3% | 0.479 1m12s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3891 84.4% | 0.479 1m12s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3896 84.5% | 0.479 1m11s | 1523.32 82485 n.a.%
Apr 13 10:46 | 3899 84.6% | 0.481 1m11s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3900 84.7% | 0.481 1m11s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3911 84.8% | 0.481 1m10s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3912 84.9% | 0.481 1m10s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3915 85.0% | 0.480 1m09s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3920 85.1% | 0.480 1m09s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3924 85.2% | 0.480 1m08s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3927 85.3% | 0.480 1m08s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3932 85.4% | 0.480 1m07s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3935 85.5% | 0.478 1m06s | 1526.51 82485 n.a.%
Apr 13 10:46 | 3939 85.6% | 0.480 1m06s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3956 85.7% | 0.480 1m06s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3959 85.8% | 0.480 1m05s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3960 85.9% | 0.481 1m05s | 1516.99 82485 n.a.%
Apr 13 10:46 | 3971 86.0% | 0.480 1m04s | 1520.15 82485 n.a.%
Apr 13 10:46 | 3975 86.1% | 0.482 1m04s | 1513.84 82485 n.a.%
Apr 13 10:46 | 3984 86.2% | 0.592 1m18s | 1232.55 82485 n.a.%
Apr 13 10:46 | 3987 86.4% | 0.539 1m11s | 1353.75 82485 n.a.%
Apr 13 10:46 | 3992 86.5% | 0.477 1m02s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3995 86.6% | 0.477 1m02s | 1529.71 82485 n.a.%
Apr 13 10:46 | 3996 86.7% | 0.476 1m01s | 1532.93 82485 n.a.%
Apr 13 10:46 | 3999 86.8% | 0.476 1m00s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4004 86.9% | 0.476 1m00s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4011 87.0% | 0.477 1m00s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4016 87.1% | 0.476 0m59s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4019 87.2% | 0.476 0m59s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4020 87.3% | 0.477 0m58s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4031 87.4% | 0.483 0m58s | 1510.71 82485 n.a.%
Apr 13 10:46 | 4032 87.5% | 0.495 0m59s | 1474.09 82485 n.a.%
Apr 13 10:46 | 4040 87.6% | 0.487 0m58s | 1498.30 82485 n.a.%
Apr 13 10:46 | 4044 87.7% | 0.478 0m56s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4047 87.8% | 0.477 0m56s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4052 87.9% | 0.477 0m55s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4055 88.0% | 0.476 0m55s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4059 88.1% | 0.477 0m54s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4064 88.2% | 0.475 0m54s | 1536.15 82485 n.a.%
Apr 13 10:46 | 4067 88.3% | 0.476 0m53s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4071 88.4% | 0.477 0m53s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4076 88.5% | 0.477 0m52s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4080 88.6% | 0.478 0m52s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4092 88.8% | 0.476 0m51s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4095 88.9% | 0.476 0m51s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4100 89.0% | 0.476 0m50s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4104 89.1% | 0.476 0m50s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4107 89.2% | 0.477 0m50s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4115 89.3% | 0.476 0m49s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4116 89.4% | 0.478 0m49s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4124 89.5% | 0.477 0m48s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4127 89.6% | 0.477 0m48s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4131 89.7% | 0.477 0m47s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4136 89.8% | 0.477 0m47s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4139 89.9% | 0.477 0m46s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4151 90.0% | 0.478 0m46s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4152 90.1% | 0.476 0m45s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4155 90.2% | 0.476 0m45s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4160 90.3% | 0.476 0m44s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4164 90.4% | 0.477 0m44s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4172 90.5% | 0.476 0m43s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4176 90.6% | 0.478 0m43s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4179 90.7% | 0.477 0m42s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4184 90.8% | 0.477 0m42s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4187 90.9% | 0.477 0m41s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4191 91.0% | 0.478 0m41s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4199 91.1% | 0.478 0m41s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4212 91.2% | 0.477 0m40s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4215 91.4% | 0.476 0m40s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4220 91.5% | 0.477 0m39s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4227 91.6% | 0.476 0m39s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4232 91.7% | 0.477 0m38s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4235 91.8% | 0.477 0m38s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4236 91.9% | 0.476 0m37s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4239 92.0% | 0.476 0m37s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4247 92.1% | 0.478 0m36s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4251 92.2% | 0.478 0m36s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4256 92.3% | 0.478 0m35s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4260 92.4% | 0.477 0m35s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4271 92.5% | 0.477 0m34s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4272 92.6% | 0.478 0m34s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4275 92.7% | 0.477 0m33s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4284 92.8% | 0.476 0m33s | 1532.93 82485 n.a.%
Apr 13 10:46 | 4292 92.9% | 0.477 0m32s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4295 93.0% | 0.477 0m32s | 1529.71 82485 n.a.%
Apr 13 10:46 | 4296 93.1% | 0.478 0m32s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4304 93.2% | 0.478 0m31s | 1526.51 82485 n.a.%
Apr 13 10:46 | 4307 93.3% | 0.478 0m31s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4311 93.4% | 0.479 0m30s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4316 93.5% | 0.477 0m30s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4319 93.6% | 0.478 0m29s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4320 93.8% | 0.479 0m29s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4331 93.9% | 0.514 0m30s | 1419.60 82485 n.a.%
Apr 13 10:47 | 4335 94.0% | 1.076 1m02s | 678.13 82485 n.a.%
Apr 13 10:47 | 4340 94.1% | 0.947 0m54s | 770.51 82485 n.a.%
Apr 13 10:47 | 4344 94.2% | 0.509 0m29s | 1433.54 82485 n.a.%
Apr 13 10:47 | 4347 94.3% | 0.510 0m28s | 1430.73 82485 n.a.%
Apr 13 10:47 | 4352 94.4% | 0.668 0m36s | 1092.32 82485 n.a.%
Apr 13 10:47 | 4355 94.5% | 0.476 0m25s | 1532.93 82485 n.a.%
Apr 13 10:47 | 4356 94.6% | 0.477 0m25s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4359 94.7% | 0.476 0m24s | 1532.93 82485 n.a.%
Apr 13 10:47 | 4367 94.8% | 0.476 0m24s | 1532.93 82485 n.a.%
Apr 13 10:47 | 4379 94.9% | 0.477 0m23s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4380 95.0% | 0.477 0m23s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4391 95.1% | 0.477 0m22s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4395 95.2% | 0.477 0m22s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4400 95.3% | 0.476 0m21s | 1532.93 82485 n.a.%
Apr 13 10:47 | 4404 95.4% | 0.479 0m21s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4407 95.5% | 0.477 0m21s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4412 95.6% | 0.479 0m20s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4415 95.7% | 0.478 0m20s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4416 95.8% | 0.480 0m19s | 1520.15 82485 n.a.%
Apr 13 10:47 | 4419 95.9% | 0.478 0m19s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4424 96.0% | 0.476 0m18s | 1532.93 82485 n.a.%
Apr 13 10:47 | 4436 96.1% | 0.478 0m18s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4439 96.2% | 0.479 0m17s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4440 96.4% | 0.488 0m17s | 1495.23 82485 n.a.%
Apr 13 10:47 | 4451 96.5% | 0.486 0m17s | 1501.38 82485 n.a.%
Apr 13 10:47 | 4452 96.6% | 0.485 0m16s | 1504.48 82485 n.a.%
Apr 13 10:47 | 4460 96.7% | 0.486 0m16s | 1501.38 82485 n.a.%
Apr 13 10:47 | 4467 96.8% | 0.479 0m15s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4472 96.9% | 0.479 0m14s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4479 97.0% | 0.479 0m14s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4484 97.1% | 0.480 0m13s | 1520.15 82485 n.a.%
Apr 13 10:47 | 4487 97.2% | 0.477 0m13s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4491 97.3% | 0.477 0m12s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4496 97.4% | 0.477 0m12s | 1529.71 82485 n.a.%
Apr 13 10:47 | 4499 97.5% | 0.479 0m11s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4500 97.6% | 0.478 0m11s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4512 97.7% | 0.478 0m11s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4515 97.8% | 0.479 0m10s | 1523.32 82485 n.a.%
Apr 13 10:47 | 4520 97.9% | 0.478 0m10s | 1526.51 82485 n.a.%
Apr 13 10:47 | 4524 98.0% | 0.480 0m09s | 1520.15 82485 n.a.%
Apr 13 10:47 | 4527 98.1% | 0.713 0m13s | 1023.38 82485 n.a.%
Apr 13 10:47 | 4535 98.2% | 0.550 0m09s | 1326.68 82485 n.a.%
2026-04-13 10:50:23 (1260): wrapper (7.24.26018): starting
2026-04-13 10:50:24 (1260): wrapper: running mfaktc-win-64.exe (-d 0)
2026-04-13 10:50:24 (1260): wrapper: created child process 3804
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 12.8
CUDA device info
name NVIDIA GeForce GTX 1080 Ti
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 28
clock rate (CUDA cores) 1683 MHz
memory clock rate: 5505 MHz
memory bus width: 352 bits
Automatic parameters
threads per grid 917504
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=943831309 bit_min=75 bit_max=76 (8.11 GHz-days)
Starting trial factoring M943831309 from 2^75 to 2^76 (8.11 GHz-days)
k_min = 20013603862560
k_max = 40027207725270
Using GPU kernel "barrett76_mul32_gs"
found a valid checkpoint file!
last finished class was: 4044
no factors found so far.
previous work took 431909 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Apr 13 10:50 | 4047 87.8% | 0.502 0m59s | 1453.53 82485 n.a.%
Apr 13 10:50 | 4052 87.9% | 0.469 0m54s | 1555.80 82485 n.a.%
Apr 13 10:50 | 4055 88.0% | 0.471 0m54s | 1549.20 82485 n.a.%
Apr 13 10:50 | 4059 88.1% | 0.469 0m53s | 1555.80 82485 n.a.%
Apr 13 10:50 | 4064 88.2% | 0.472 0m53s | 1545.92 82485 n.a.%
Apr 13 10:50 | 4067 88.3% | 0.471 0m53s | 1549.20 82485 n.a.%
Apr 13 10:50 | 4071 88.4% | 0.472 0m52s | 1545.92 82485 n.a.%
Apr 13 10:50 | 4076 88.5% | 0.469 0m52s | 1555.80 82485 n.a.%
2026-04-13 11:09:57 (10948): wrapper (7.24.26018): starting
2026-04-13 11:09:57 (10948): wrapper: running mfaktc-win-64.exe (-d 0)
2026-04-13 11:09:57 (10948): wrapper: created child process 19572
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 12.8
CUDA device info
name NVIDIA GeForce GTX 1080 Ti
compute capability 6.1
max threads per block 1024
max shared memory per MP 98304 bytes
number of multiprocessors 28
clock rate (CUDA cores) 1683 MHz
memory clock rate: 5505 MHz
memory bus width: 352 bits
Automatic parameters
threads per grid 917504
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=943831309 bit_min=75 bit_max=76 (8.11 GHz-days)
Starting trial factoring M943831309 from 2^75 to 2^76 (8.11 GHz-days)
k_min = 20013603862560
k_max = 40027207725270
Using GPU kernel "barrett76_mul32_gs"
found a valid checkpoint file!
last finished class was: 4044
no factors found so far.
previous work took 431909 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Apr 13 11:10 | 4047 87.8% | 0.516 1m00s | 1414.09 82485 n.a.%
Apr 13 11:10 | 4052 87.9% | 0.465 0m54s | 1569.19 82485 n.a.%
Apr 13 11:10 | 4055 88.0% | 0.496 0m57s | 1471.11 82485 n.a.%
Apr 13 11:10 | 4059 88.1% | 0.565 1m04s | 1291.46 82485 n.a.%
Apr 13 11:10 | 4064 88.2% | 0.533 1m00s | 1368.99 82485 n.a.%
Apr 13 11:10 | 4067 88.3% | 0.521 0m58s | 1400.52 82485 n.a.%
Apr 13 11:10 | 4071 88.4% | 0.521 0m58s | 1400.52 82485 n.a.%
Apr 13 11:10 | 4076 88.5% | 0.519 0m57s | 1405.92 82485 n.a.%
Apr 13 11:10 | 4080 88.6% | 0.535 0m58s | 1363.87 82485 n.a.%
Apr 13 11:10 | 4092 88.8% | 0.510 0m55s | 1430.73 82485 n.a.%
Apr 13 11:10 | 4095 88.9% | 0.501 0m54s | 1456.43 82485 n.a.%
Apr 13 11:10 | 4100 89.0% | 0.470 0m50s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4104 89.1% | 0.470 0m49s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4107 89.2% | 0.469 0m49s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4115 89.3% | 0.470 0m48s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4116 89.4% | 0.469 0m48s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4124 89.5% | 0.469 0m47s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4127 89.6% | 0.469 0m47s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4131 89.7% | 0.469 0m46s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4136 89.8% | 0.470 0m46s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4139 89.9% | 0.470 0m46s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4151 90.0% | 0.470 0m45s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4152 90.1% | 0.470 0m45s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4155 90.2% | 0.469 0m44s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4160 90.3% | 0.470 0m44s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4164 90.4% | 0.469 0m43s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4172 90.5% | 0.469 0m43s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4176 90.6% | 0.469 0m42s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4179 90.7% | 0.470 0m42s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4184 90.8% | 0.470 0m41s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4187 90.9% | 0.470 0m41s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4191 91.0% | 0.470 0m40s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4199 91.1% | 0.470 0m40s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4212 91.2% | 0.470 0m39s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4215 91.4% | 0.470 0m39s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4220 91.5% | 0.470 0m39s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4227 91.6% | 0.470 0m38s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4232 91.7% | 0.470 0m38s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4235 91.8% | 0.470 0m37s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4236 91.9% | 0.470 0m37s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4239 92.0% | 0.470 0m36s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4247 92.1% | 0.470 0m36s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4251 92.2% | 0.471 0m35s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4256 92.3% | 0.470 0m35s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4260 92.4% | 0.470 0m34s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4271 92.5% | 0.470 0m34s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4272 92.6% | 0.471 0m33s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4275 92.7% | 0.471 0m33s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4284 92.8% | 0.470 0m32s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4292 92.9% | 0.470 0m32s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4295 93.0% | 0.477 0m32s | 1529.71 82485 n.a.%
Apr 13 11:10 | 4296 93.1% | 0.470 0m31s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4304 93.2% | 0.469 0m30s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4307 93.3% | 0.470 0m30s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4311 93.4% | 0.470 0m30s | 1552.49 82485 n.a.%
Apr 13 11:10 | 4316 93.5% | 0.471 0m29s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4319 93.6% | 0.471 0m29s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4320 93.8% | 0.471 0m28s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4331 93.9% | 0.471 0m28s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4335 94.0% | 0.471 0m27s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4340 94.1% | 0.471 0m27s | 1549.20 82485 n.a.%
Apr 13 11:10 | 4344 94.2% | 0.472 0m26s | 1545.92 82485 n.a.%
Apr 13 11:10 | 4347 94.3% | 0.473 0m26s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4352 94.4% | 0.473 0m26s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4355 94.5% | 0.473 0m25s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4356 94.6% | 0.473 0m25s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4359 94.7% | 0.474 0m24s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4367 94.8% | 0.473 0m24s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4379 94.9% | 0.473 0m23s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4380 95.0% | 0.473 0m23s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4391 95.1% | 0.474 0m22s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4395 95.2% | 0.473 0m22s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4400 95.3% | 0.474 0m21s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4404 95.4% | 0.474 0m21s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4407 95.5% | 0.474 0m20s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4412 95.6% | 0.473 0m20s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4415 95.7% | 0.474 0m19s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4416 95.8% | 0.473 0m19s | 1542.65 82485 n.a.%
Apr 13 11:10 | 4419 95.9% | 0.474 0m18s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4424 96.0% | 0.474 0m18s | 1539.39 82485 n.a.%
Apr 13 11:10 | 4436 96.1% | 20.745 12m48s | 35.17 82485 n.a.%
Apr 13 11:10 | 4439 96.2% | 0.476 0m17s | 1532.93 82485 n.a.%
Apr 13 11:10 | 4440 96.4% | 0.469 0m16s | 1555.80 82485 n.a.%
Apr 13 11:10 | 4451 96.5% | 0.469 0m16s | 1555.80 82485 n.a.%
Apr 13 11:11 | 4452 96.6% | 0.470 0m16s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4460 96.7% | 0.470 0m15s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4467 96.8% | 0.470 0m15s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4472 96.9% | 0.470 0m14s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4479 97.0% | 0.470 0m14s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4484 97.1% | 0.470 0m13s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4487 97.2% | 0.474 0m13s | 1539.39 82485 n.a.%
Apr 13 11:11 | 4491 97.3% | 0.500 0m13s | 1459.34 82485 n.a.%
Apr 13 11:11 | 4496 97.4% | 0.495 0m12s | 1474.09 82485 n.a.%
Apr 13 11:11 | 4499 97.5% | 0.496 0m12s | 1471.11 82485 n.a.%
Apr 13 11:11 | 4500 97.6% | 0.487 0m11s | 1498.30 82485 n.a.%
Apr 13 11:11 | 4512 97.7% | 0.470 0m10s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4515 97.8% | 0.470 0m10s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4520 97.9% | 0.471 0m09s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4524 98.0% | 0.470 0m09s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4527 98.1% | 0.471 0m08s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4535 98.2% | 0.472 0m08s | 1545.92 82485 n.a.%
Apr 13 11:11 | 4536 98.3% | 0.471 0m08s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4544 98.4% | 0.470 0m07s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4547 98.5% | 0.470 0m07s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4551 98.6% | 0.470 0m06s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4556 98.8% | 0.471 0m06s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4559 98.9% | 0.470 0m05s | 1552.49 82485 n.a.%
Apr 13 11:11 | 4571 99.0% | 0.471 0m05s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4572 99.1% | 0.471 0m04s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4575 99.2% | 0.471 0m04s | 1549.20 82485 n.a.%
Apr 13 11:11 | 4580 99.3% | 0.472 0m03s | 1545.92 82485 n.a.%
Apr 13 11:11 | 4584 99.4% | 0.472 0m03s | 1545.92 82485 n.a.%
Apr 13 11:11 | 4587 99.5% | 0.473 0m02s | 1542.65 82485 n.a.%
Apr 13 11:11 | 4592 99.6% | 0.473 0m02s | 1542.65 82485 n.a.%
Apr 13 11:11 | 4599 99.7% | 0.473 0m01s | 1542.65 82485 n.a.%
Apr 13 11:11 | 4604 99.8% | 0.473 0m01s | 1542.65 82485 n.a.%
Apr 13 11:11 | 4611 99.9% | 0.474 0m00s | 1539.39 82485 n.a.%
Apr 13 11:11 | 4619 100.0% | 0.473 0m00s | 1542.65 82485 n.a.%
no factor for M943831309 from 2^75 to 2^76
tf(): time spent since restart: 1m 16.526s
estimated total time spent: 10m 22.584s
ERROR: get_next_assignment(): no valid assignment found in "worktodo.txt"
2026-04-13 11:11:16 (10948): mfaktc-win-64.exe exited; CPU time 1.953125
2026-04-13 11:11:16 (10948): called boinc_finish(0)
</stderr_txt>
]]>
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