| log in |
| Name | TF_76-77_163-178M_wu_42130_0 |
| Workunit | 50215616 |
| Created | 24 May 2026, 17:48:21 UTC |
| Sent | 4 Jun 2026, 19:26:09 UTC |
| Report deadline | 10 Jun 2026, 19:26:09 UTC |
| Received | 5 Jun 2026, 0:06:05 UTC |
| Server state | Over |
| Outcome | Success |
| Client state | Done |
| Exit status | 0 (0x0) |
| Computer ID | 251042 |
| Run time | 3 min 47 sec |
| CPU time | |
| Validate state | Valid |
| Credit | 45,000.00 |
| Device peak FLOPS | 1,627.15 GFLOPS |
| Application version | TF v0.52 (opencl_intel_gpu_intelarc) |
| Peak working set size | 229.34 MB |
| Peak swap size | 461.58 MB |
| Peak disk usage | 2.81 MB |
<core_client_version>8.2.13</core_client_version>
<![CDATA[
<stderr_txt>
1206 0.00%
Jun 04 19:06 | 1923 41.8% | 5.461 50m53s | 1415.19 81206 0.00%
Jun 04 19:06 | 1928 41.9% | 5.464 50m49s | 1414.42 81206 0.00%
Jun 04 19:06 | 1931 42.0% | 5.462 50m42s | 1414.93 81206 0.00%
Jun 04 19:06 | 1935 42.1% | 5.465 50m39s | 1414.16 81206 0.00%
Jun 04 19:06 | 1940 42.2% | 5.464 50m33s | 1414.42 81206 0.00%
Jun 04 19:06 | 1943 42.3% | 5.462 50m26s | 1414.93 81206 0.00%
Jun 04 19:06 | 1944 42.4% | 5.461 50m20s | 1415.19 81206 0.00%
Jun 04 19:06 | 1956 42.5% | 5.471 50m20s | 1412.61 81206 0.00%
Jun 04 19:06 | 1964 42.6% | 5.460 50m08s | 1415.45 81206 0.00%
Jun 04 19:06 | 1968 42.7% | 5.461 50m04s | 1415.19 81206 0.00%
Jun 04 19:06 | 1971 42.8% | 5.462 49m59s | 1414.93 81206 0.00%
Jun 04 19:07 | 1979 42.9% | 5.467 49m56s | 1413.64 81206 0.00%
Jun 04 19:07 | 1980 43.0% | 5.463 49m48s | 1414.68 81206 0.00%
Jun 04 19:07 | 1988 43.1% | 5.461 49m42s | 1415.19 81206 0.00%
Jun 04 19:07 | 1991 43.2% | 5.460 49m36s | 1415.45 81206 0.00%
Jun 04 19:07 | 1995 43.3% | 5.458 49m29s | 1415.97 81206 0.00%
Jun 04 19:07 | 2000 43.4% | 5.461 49m25s | 1415.19 81206 0.00%
Jun 04 19:07 | 2015 43.5% | 5.463 49m21s | 1414.68 81206 0.00%
Jun 04 19:07 | 2016 43.6% | 5.463 49m15s | 1414.68 81206 0.00%
Jun 04 19:07 | 2019 43.8% | 5.462 49m09s | 1414.93 81206 0.00%
Jun 04 19:07 | 2024 43.9% | 5.456 49m01s | 1416.49 81206 0.00%
Jun 04 19:07 | 2028 44.0% | 5.461 48m58s | 1415.19 81206 0.00%
Jun 04 19:08 | 2031 44.1% | 5.464 48m54s | 1414.42 81206 0.00%
Jun 04 19:08 | 2040 44.2% | 5.464 48m49s | 1414.42 81206 0.00%
Jun 04 19:08 | 2043 44.3% | 5.461 48m42s | 1415.19 81206 0.00%
Jun 04 19:08 | 2048 44.4% | 5.461 48m36s | 1415.19 81206 0.00%
Jun 04 19:08 | 2051 44.5% | 5.460 48m30s | 1415.45 81206 0.00%
Jun 04 19:08 | 2055 44.6% | 5.460 48m25s | 1415.45 81206 0.00%
Jun 04 19:08 | 2063 44.7% | 5.462 48m20s | 1414.93 81206 0.00%
Jun 04 19:08 | 2064 44.8% | 5.461 48m14s | 1415.19 81206 0.00%
Jun 04 19:08 | 2075 44.9% | 5.462 48m09s | 1414.93 81206 0.00%
Jun 04 19:08 | 2076 45.0% | 5.463 48m04s | 1414.68 81206 0.00%
Jun 04 19:08 | 2079 45.1% | 5.464 48m00s | 1414.42 81206 0.00%
Jun 04 19:09 | 2084 45.2% | 5.462 47m53s | 1414.93 81206 0.00%
Jun 04 19:09 | 2096 45.3% | 5.459 47m46s | 1415.71 81206 0.00%
Jun 04 19:09 | 2099 45.4% | 5.457 47m39s | 1416.23 81206 0.00%
Jun 04 19:09 | 2100 45.5% | 5.464 47m38s | 1414.42 81206 0.00%
Jun 04 19:09 | 2103 45.6% | 5.466 47m33s | 1413.90 81206 0.00%
Jun 04 19:09 | 2108 45.7% | 5.462 47m26s | 1414.93 81206 0.00%
Jun 04 19:09 | 2111 45.8% | 5.456 47m17s | 1416.49 81206 0.00%
Jun 04 19:09 | 2115 45.9% | 5.460 47m14s | 1415.45 81206 0.00%
Jun 04 19:09 | 2120 46.0% | 5.458 47m07s | 1415.97 81206 0.00%
Jun 04 19:09 | 2136 46.1% | 5.457 47m01s | 1416.23 81206 0.00%
Jun 04 19:09 | 2139 46.2% | 5.459 46m57s | 1415.71 81206 0.00%
Jun 04 19:10 | 2148 46.4% | 5.459 46m51s | 1415.71 81206 0.00%
Jun 04 19:10 | 2156 46.5% | 5.460 46m46s | 1415.45 81206 0.00%
Jun 04 19:10 | 2159 46.6% | 5.462 46m42s | 1414.93 81206 0.00%
Jun 04 19:10 | 2160 46.7% | 5.458 46m34s | 1415.97 81206 0.00%
Jun 04 19:10 | 2163 46.8% | 5.458 46m29s | 1415.97 81206 0.00%
Jun 04 19:10 | 2171 46.9% | 5.461 46m25s | 1415.19 81206 0.00%
Jun 04 19:10 | 2175 47.0% | 5.463 46m21s | 1414.68 81206 0.00%
Jun 04 19:10 | 2180 47.1% | 5.463 46m15s | 1414.68 81206 0.00%
Jun 04 19:10 | 2183 47.2% | 5.458 46m07s | 1415.97 81206 0.00%
Jun 04 19:10 | 2184 47.3% | 5.461 46m03s | 1415.19 81206 0.00%
Jun 04 19:10 | 2195 47.4% | 5.461 45m58s | 1415.19 81206 0.00%
Jun 04 19:11 | 2196 47.5% | 5.457 45m50s | 1416.23 81206 0.00%
Jun 04 19:11 | 2199 47.6% | 5.462 45m47s | 1414.93 81206 0.00%
Jun 04 19:11 | 2204 47.7% | 5.462 45m42s | 1414.93 81206 0.00%
Jun 04 19:11 | 2208 47.8% | 5.459 45m35s | 1415.71 81206 0.00%
Jun 04 19:11 | 2211 47.9% | 5.460 45m30s | 1415.45 81206 0.00%
Jun 04 19:11 | 2216 48.0% | 5.462 45m26s | 1414.93 81206 0.00%
Jun 04 19:11 | 2219 48.1% | 5.460 45m19s | 1415.45 81206 0.00%
Jun 04 19:11 | 2220 48.2% | 5.467 45m17s | 1413.64 81206 0.00%
Jun 04 19:11 | 2231 48.3% | 5.462 45m09s | 1414.93 81206 0.00%
Jun 04 19:11 | 2240 48.4% | 5.459 45m02s | 1415.71 81206 0.00%
Jun 04 19:11 | 2243 48.5% | 5.462 44m58s | 1414.93 81206 0.00%
Jun 04 19:12 | 2244 48.6% | 5.464 44m54s | 1414.42 81206 0.00%
Jun 04 19:12 | 2255 48.8% | 5.461 44m47s | 1415.19 81206 0.00%
Jun 04 19:12 | 2259 48.9% | 5.462 44m42s | 1414.93 81206 0.00%
Jun 04 19:12 | 2264 49.0% | 5.464 44m37s | 1414.42 81206 0.00%
Jun 04 19:12 | 2268 49.1% | 5.462 44m31s | 1414.93 81206 0.00%
Jun 04 19:12 | 2271 49.2% | 5.462 44m25s | 1414.93 81206 0.00%
Jun 04 19:12 | 2276 49.3% | 5.461 44m20s | 1415.19 81206 0.00%
Jun 04 19:12 | 2279 49.4% | 5.462 44m15s | 1414.93 81206 0.00%
Jun 04 19:12 | 2280 49.5% | 5.462 44m09s | 1414.93 81206 0.00%
Jun 04 19:12 | 2283 49.6% | 5.464 44m05s | 1414.42 81206 0.00%
Jun 04 19:12 | 2288 49.7% | 5.461 43m58s | 1415.19 81206 0.00%
Jun 04 19:13 | 2295 49.8% | 5.464 43m54s | 1414.42 81206 0.00%
Jun 04 19:13 | 2303 49.9% | 5.462 43m47s | 1414.93 81206 0.00%
Jun 04 19:13 | 2304 50.0% | 5.463 43m42s | 1414.68 81206 0.00%
Jun 04 19:13 | 2315 50.1% | 5.460 43m35s | 1415.45 81206 0.00%
Jun 04 19:13 | 2316 50.2% | 5.463 43m31s | 1414.68 81206 0.00%
Jun 04 19:13 | 2324 50.3% | 5.462 43m25s | 1414.93 81206 0.00%
Jun 04 19:13 | 2328 50.4% | 5.461 43m19s | 1415.19 81206 0.00%
Jun 04 19:13 | 2331 50.5% | 5.467 43m17s | 1413.64 81206 0.00%
Jun 04 19:13 | 2336 50.6% | 5.463 43m09s | 1414.68 81206 0.00%
Jun 04 19:13 | 2339 50.7% | 5.463 43m04s | 1414.68 81206 0.00%
Jun 04 19:13 | 2343 50.8% | 5.460 42m57s | 1415.45 81206 0.00%
Jun 04 19:14 | 2348 50.9% | 5.464 42m54s | 1414.42 81206 0.00%
Jun 04 19:14 | 2351 51.0% | 5.461 42m47s | 1415.19 81206 0.00%
Jun 04 19:14 | 2360 51.1% | 5.463 42m42s | 1414.68 81206 0.00%
Jun 04 19:14 | 2363 51.2% | 5.458 42m34s | 1415.97 81206 0.00%
Jun 04 19:14 | 2364 51.4% | 5.462 42m31s | 1414.93 81206 0.00%
Jun 04 19:14 | 2376 51.5% | 5.497 42m42s | 1405.92 81206 0.00%
mfakto will exit once the current class is finished.
press ^C again to exit immediately
mfakto will exit NOW!
2026-06-04 19:18:00 (11784): wrapper (7.24.26018): starting
2026-06-04 19:18:00 (11784): wrapper (7.24.26018): starting
2026-06-04 19:18:00 (11784): wrapper: running ./mfakto.exe (-d 0)
2026-06-04 19:18:00 (11784): wrapper: created child process 11786
mfakto 0.16.0-beta.5 (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType INTEL
SmallExp no
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
OpenCL device info
name Intel(R) Arc(TM) A580 Graphics (Intel(R) Corporation)
device (driver) version OpenCL 3.0 NEO (26.18.38308.1)
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 384 (384 compute elements)
clock rate 2400 MHz
Automatic parameters
threads per grid 0
optimizing kernels for INTEL
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=178223281 bit_min=76 bit_max=77 (85.87 GHz-days)
Starting trial factoring M178223281 from 2^76 to 2^77 (85.87 GHz-days)
Using GPU kernel "cl_barrett32_77_gs_2"
Found a valid checkpoint file.
last finished class was: 2339
no factors found so far.
previous work took 2663046 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 04 19:18 | 2343 50.8% | 5.481 43m07s | 1410.03 81206 0.00%
Jun 04 19:18 | 2348 50.9% | 5.530 43m25s | 1397.54 81206 0.00%
Jun 04 19:18 | 2351 51.0% | 5.512 43m11s | 1402.10 81206 0.00%
Jun 04 19:18 | 2360 51.1% | 5.558 43m27s | 1390.49 81206 0.00%
Jun 04 19:18 | 2363 51.2% | 5.501 42m54s | 1404.90 81206 0.00%
Jun 04 19:18 | 2364 51.4% | 5.553 43m13s | 1391.75 81206 0.00%
Jun 04 19:18 | 2376 51.5% | 5.531 42m57s | 1397.28 81206 0.00%
Jun 04 19:18 | 2379 51.6% | 5.545 42m58s | 1393.75 81206 0.00%
Jun 04 19:18 | 2384 51.7% | 5.572 43m05s | 1387.00 81206 0.00%
Jun 04 19:18 | 2391 51.8% | 5.639 43m31s | 1370.52 81206 0.00%
Jun 04 19:19 | 2400 51.9% | 5.552 42m45s | 1392.00 81206 0.00%
Jun 04 19:19 | 2408 52.0% | 5.558 42m42s | 1390.49 81206 0.00%
Jun 04 19:19 | 2411 52.1% | 5.499 42m10s | 1405.41 81206 0.00%
Jun 04 19:19 | 2415 52.2% | 5.498 42m04s | 1405.67 81206 0.00%
Jun 04 19:19 | 2420 52.3% | 5.572 42m32s | 1387.00 81206 0.00%
Jun 04 19:19 | 2423 52.4% | 5.567 42m24s | 1388.25 81206 0.00%
Jun 04 19:19 | 2435 52.5% | 5.524 41m59s | 1399.05 81206 0.00%
Jun 04 19:19 | 2436 52.6% | 5.552 42m06s | 1392.00 81206 0.00%
Jun 04 19:19 | 2439 52.7% | 5.537 41m54s | 1395.77 81206 0.00%
Jun 04 19:19 | 2444 52.8% | 5.548 41m53s | 1393.00 81206 0.00%
Jun 04 19:19 | 2448 52.9% | 5.522 41m36s | 1399.56 81206 0.00%
Jun 04 19:20 | 2451 53.0% | 5.551 41m44s | 1392.25 81206 0.00%
Jun 04 19:20 | 2456 53.1% | 5.535 41m31s | 1396.27 81206 0.00%
Jun 04 19:20 | 2460 53.2% | 5.554 41m34s | 1391.50 81206 0.00%
Jun 04 19:20 | 2463 53.3% | 5.570 41m35s | 1387.50 81206 0.00%
Jun 04 19:20 | 2468 53.4% | 5.486 40m52s | 1408.74 81206 0.00%
Jun 04 19:20 | 2471 53.5% | 5.576 41m27s | 1386.01 81206 0.00%
Jun 04 19:20 | 2475 53.6% | 5.523 40m58s | 1399.31 81206 0.00%
Jun 04 19:20 | 2483 53.8% | 5.525 40m53s | 1398.80 81206 0.00%
Jun 04 19:20 | 2484 53.9% | 5.542 40m55s | 1394.51 81206 0.00%
Jun 04 19:20 | 2495 54.0% | 5.548 40m52s | 1393.00 81206 0.00%
Jun 04 19:20 | 2496 54.1% | 5.525 40m37s | 1398.80 81206 0.00%
Jun 04 19:21 | 2499 54.2% | 5.535 40m35s | 1396.27 81206 0.00%
Jun 04 19:21 | 2504 54.3% | 5.568 40m44s | 1388.00 81206 0.00%
Jun 04 19:21 | 2511 54.4% | 5.580 40m44s | 1385.01 81206 0.00%
Jun 04 19:21 | 2516 54.5% | 5.578 40m38s | 1385.51 81206 0.00%
Jun 04 19:21 | 2519 54.6% | 5.519 40m06s | 1400.32 81206 0.00%
Jun 04 19:21 | 2523 54.7% | 5.483 39m45s | 1409.51 81206 0.00%
Jun 04 19:21 | 2528 54.8% | 5.517 39m54s | 1400.83 81206 0.00%
Jun 04 19:21 | 2535 54.9% | 5.510 39m46s | 1402.61 81206 0.00%
Jun 04 19:21 | 2540 55.0% | 5.532 39m50s | 1397.03 81206 0.00%
Jun 04 19:21 | 2544 55.1% | 5.506 39m33s | 1403.63 81206 0.00%
Jun 04 19:21 | 2555 55.2% | 5.511 39m30s | 1402.35 81206 0.00%
Jun 04 19:22 | 2556 55.3% | 5.504 39m21s | 1404.14 81206 0.00%
Jun 04 19:22 | 2559 55.4% | 5.553 39m37s | 1391.75 81206 0.00%
Jun 04 19:22 | 2568 55.5% | 5.594 39m49s | 1381.55 81206 0.00%
Jun 04 19:22 | 2576 55.6% | 5.545 39m22s | 1393.75 81206 0.00%
Jun 04 19:22 | 2579 55.7% | 5.554 39m20s | 1391.50 81206 0.00%
Jun 04 19:22 | 2580 55.8% | 5.516 38m59s | 1401.08 81206 0.00%
Jun 04 19:22 | 2583 55.9% | 5.482 38m39s | 1409.77 81206 0.00%
Jun 04 19:22 | 2588 56.0% | 5.589 39m19s | 1382.78 81206 0.00%
Jun 04 19:22 | 2591 56.1% | 5.538 38m51s | 1395.52 81206 0.00%
Jun 04 19:22 | 2595 56.2% | 5.571 39m00s | 1387.25 81206 0.00%
Jun 04 19:23 | 2600 56.4% | 5.481 38m17s | 1410.03 81206 0.00%
Jun 04 19:23 | 2603 56.5% | 5.469 38m06s | 1413.12 81206 0.00%
Jun 04 19:23 | 2604 56.6% | 5.541 38m31s | 1394.76 81206 0.00%
Jun 04 19:23 | 2615 56.7% | 5.505 38m10s | 1403.88 81206 0.00%
Jun 04 19:23 | 2616 56.8% | 5.570 38m32s | 1387.50 81206 0.00%
Jun 04 19:23 | 2624 56.9% | 5.526 38m08s | 1398.55 81206 0.00%
Jun 04 19:23 | 2628 57.0% | 5.502 37m52s | 1404.65 81206 0.00%
Jun 04 19:23 | 2631 57.1% | 5.536 38m01s | 1396.02 81206 0.00%
Jun 04 19:23 | 2636 57.2% | 5.491 37m37s | 1407.46 81206 0.00%
Jun 04 19:23 | 2639 57.3% | 5.522 37m44s | 1399.56 81206 0.00%
Jun 04 19:23 | 2640 57.4% | 5.569 37m58s | 1387.75 81206 0.00%
Jun 04 19:24 | 2643 57.5% | 5.603 38m06s | 1379.33 81206 0.00%
Jun 04 19:24 | 2651 57.6% | 5.601 38m00s | 1379.82 81206 0.00%
Jun 04 19:24 | 2660 57.7% | 5.603 37m55s | 1379.33 81206 0.00%
Jun 04 19:24 | 2664 57.8% | 5.616 37m54s | 1376.13 81206 0.00%
Jun 04 19:24 | 2675 57.9% | 5.632 37m55s | 1372.22 81206 0.00%
Jun 04 19:24 | 2679 58.0% | 5.549 37m16s | 1392.75 81206 0.00%
Jun 04 19:24 | 2684 58.1% | 5.542 37m08s | 1394.51 81206 0.00%
Jun 04 19:24 | 2688 58.2% | 5.626 37m36s | 1373.69 81206 0.00%
Jun 04 19:24 | 2691 58.3% | 5.503 36m41s | 1404.39 81206 0.00%
Jun 04 19:24 | 2699 58.4% | 5.552 36m55s | 1392.00 81206 0.00%
Jun 04 19:24 | 2700 58.5% | 5.537 36m44s | 1395.77 81206 0.00%
Jun 04 19:25 | 2703 58.6% | 5.564 36m49s | 1389.00 81206 0.00%
Jun 04 19:25 | 2708 58.8% | 5.551 36m38s | 1392.25 81206 0.00%
Jun 04 19:25 | 2715 58.9% | 5.621 37m00s | 1374.91 81206 0.00%
Jun 04 19:25 | 2720 59.0% | 5.613 36m52s | 1376.87 81206 0.00%
Jun 04 19:25 | 2723 59.1% | 5.589 36m36s | 1382.78 81206 0.00%
Jun 04 19:25 | 2724 59.2% | 5.594 36m33s | 1381.55 81206 0.00%
Jun 04 19:25 | 2735 59.3% | 5.621 36m38s | 1374.91 81206 0.00%
Jun 04 19:25 | 2736 59.4% | 5.612 36m29s | 1377.12 81206 0.00%
Jun 04 19:25 | 2744 59.5% | 5.572 36m08s | 1387.00 81206 0.00%
Jun 04 19:25 | 2748 59.6% | 5.573 36m02s | 1386.75 81206 0.00%
Jun 04 19:25 | 2756 59.7% | 5.533 35m41s | 1396.78 81206 0.00%
Jun 04 19:26 | 2759 59.8% | 5.520 35m31s | 1400.07 81206 0.00%
Jun 04 19:26 | 2763 59.9% | 5.534 35m31s | 1396.53 81206 0.00%
Jun 04 19:26 | 2768 60.0% | 5.542 35m28s | 1394.51 81206 0.00%
Jun 04 19:26 | 2771 60.1% | 5.539 35m21s | 1395.26 81206 0.00%
Jun 04 19:26 | 2775 60.2% | 5.604 35m41s | 1379.08 81206 0.00%
Jun 04 19:26 | 2780 60.3% | 5.545 35m13s | 1393.75 81206 0.00%
Jun 04 19:26 | 2783 60.4% | 5.552 35m10s | 1392.00 81206 0.00%
mfakto will exit once the current class is finished.
press ^C again to exit immediately
mfakto will exit NOW!
2026-06-04 19:26:39 (13810): wrapper (7.24.26018): starting
2026-06-04 19:26:39 (13810): wrapper (7.24.26018): starting
2026-06-04 19:26:39 (13810): wrapper: running ./mfakto.exe (-d 0)
2026-06-04 19:26:39 (13810): wrapper: created child process 13812
mfakto 0.16.0-beta.5 (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType INTEL
SmallExp no
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
OpenCL device info
name Intel(R) Arc(TM) A580 Graphics (Intel(R) Corporation)
device (driver) version OpenCL 3.0 NEO (26.18.38308.1)
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 384 (384 compute elements)
clock rate 2400 MHz
Automatic parameters
threads per grid 0
optimizing kernels for INTEL
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=178223281 bit_min=76 bit_max=77 (85.87 GHz-days)
Starting trial factoring M178223281 from 2^76 to 2^77 (85.87 GHz-days)
Using GPU kernel "cl_barrett32_77_gs_2"
Found a valid checkpoint file.
last finished class was: 2768
no factors found so far.
previous work took 3156732 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 04 19:26 | 2771 60.1% | 5.508 35m10s | 1403.12 81206 0.00%
Jun 04 19:26 | 2775 60.2% | 5.576 35m30s | 1386.01 81206 0.00%
Jun 04 19:26 | 2780 60.3% | 5.549 35m14s | 1392.75 81206 0.00%
Jun 04 19:27 | 2783 60.4% | 5.568 35m16s | 1388.00 81206 0.00%
Jun 04 19:27 | 2796 60.5% | 5.521 34m52s | 1399.81 81206 0.00%
Jun 04 19:27 | 2799 60.6% | 5.496 34m37s | 1406.18 81206 0.00%
Jun 04 19:27 | 2804 60.7% | 5.489 34m29s | 1407.97 81206 0.00%
Jun 04 19:27 | 2808 60.8% | 5.502 34m29s | 1404.65 81206 0.00%
Jun 04 19:27 | 2811 60.9% | 5.471 34m12s | 1412.61 81206 0.00%
Jun 04 19:27 | 2819 61.0% | 5.598 34m54s | 1380.56 81206 0.00%
Jun 04 19:27 | 2820 61.1% | 5.483 34m05s | 1409.51 81206 0.00%
Jun 04 19:27 | 2831 61.2% | 5.595 34m41s | 1381.30 81206 0.00%
Jun 04 19:27 | 2835 61.4% | 5.590 34m34s | 1382.53 81206 0.00%
Jun 04 19:27 | 2840 61.5% | 5.592 34m29s | 1382.04 81206 0.00%
Jun 04 19:28 | 2843 61.6% | 5.597 34m25s | 1380.81 81206 0.00%
Jun 04 19:28 | 2855 61.7% | 5.628 34m31s | 1373.20 81206 0.00%
Jun 04 19:28 | 2856 61.8% | 5.531 33m50s | 1397.28 81206 0.00%
Jun 04 19:28 | 2859 61.9% | 5.514 33m38s | 1401.59 81206 0.00%
Jun 04 19:28 | 2864 62.0% | 5.536 33m41s | 1396.02 81206 0.00%
Jun 04 19:28 | 2868 62.1% | 5.587 33m54s | 1383.28 81206 0.00%
Jun 04 19:28 | 2871 62.2% | 5.580 33m46s | 1385.01 81206 0.00%
Jun 04 19:28 | 2876 62.3% | 5.649 34m05s | 1368.10 81206 0.00%
Jun 04 19:28 | 2880 62.4% | 5.602 33m42s | 1379.57 81206 0.00%
Jun 04 19:28 | 2888 62.5% | 5.587 33m31s | 1383.28 81206 0.00%
Jun 04 19:28 | 2891 62.6% | 5.593 33m28s | 1381.79 81206 0.00%
Jun 04 19:29 | 2895 62.7% | 5.595 33m23s | 1381.30 81206 0.00%
Jun 04 19:29 | 2903 62.8% | 5.598 33m18s | 1380.56 81206 0.00%
Jun 04 19:29 | 2904 62.9% | 5.578 33m06s | 1385.51 81206 0.00%
Jun 04 19:29 | 2915 63.0% | 5.596 33m07s | 1381.05 81206 0.00%
Jun 04 19:29 | 2919 63.1% | 5.621 33m10s | 1374.91 81206 0.00%
Jun 04 19:29 | 2924 63.2% | 5.612 33m01s | 1377.12 81206 0.00%
Jun 04 19:29 | 2931 63.3% | 5.608 32m54s | 1378.10 81206 0.00%
Jun 04 19:29 | 2936 63.4% | 5.611 32m49s | 1377.36 81206 0.00%
Jun 04 19:29 | 2939 63.5% | 5.626 32m49s | 1373.69 81206 0.00%
Jun 04 19:29 | 2940 63.6% | 5.605 32m36s | 1378.83 81206 0.00%
Jun 04 19:30 | 2943 63.8% | 5.591 32m26s | 1382.29 81206 0.00%
Jun 04 19:30 | 2948 63.9% | 5.624 32m32s | 1374.18 81206 0.00%
Jun 04 19:30 | 2951 64.0% | 5.596 32m16s | 1381.05 81206 0.00%
Jun 04 19:30 | 2955 64.1% | 5.595 32m10s | 1381.30 81206 0.00%
Jun 04 19:30 | 2964 64.2% | 5.601 32m07s | 1379.82 81206 0.00%
Jun 04 19:30 | 2975 64.3% | 5.598 32m00s | 1380.56 81206 0.00%
Jun 04 19:30 | 2976 64.4% | 5.604 31m57s | 1379.08 81206 0.00%
Jun 04 19:30 | 2979 64.5% | 5.597 31m49s | 1380.81 81206 0.00%
Jun 04 19:30 | 2988 64.6% | 5.596 31m43s | 1381.05 81206 0.00%
Jun 04 19:30 | 2996 64.7% | 5.587 31m34s | 1383.28 81206 0.00%
Jun 04 19:30 | 2999 64.8% | 5.607 31m35s | 1378.34 81206 0.00%
Jun 04 19:31 | 3000 64.9% | 5.628 31m37s | 1373.20 81206 0.00%
Jun 04 19:31 | 3003 65.0% | 5.604 31m23s | 1379.08 81206 0.00%
Jun 04 19:31 | 3008 65.1% | 5.607 31m18s | 1378.34 81206 0.00%
Jun 04 19:31 | 3011 65.2% | 5.608 31m13s | 1378.10 81206 0.00%
Jun 04 19:31 | 3020 65.3% | 5.651 31m22s | 1367.61 81206 0.00%
Jun 04 19:31 | 3023 65.4% | 5.598 30m59s | 1380.56 81206 0.00%
Jun 04 19:31 | 3024 65.5% | 5.599 30m53s | 1380.31 81206 0.00%
Jun 04 19:31 | 3035 65.6% | 5.613 30m52s | 1376.87 81206 0.00%
Jun 04 19:31 | 3036 65.7% | 5.590 30m39s | 1382.53 81206 0.00%
Jun 04 19:31 | 3039 65.8% | 5.601 30m37s | 1379.82 81206 0.00%
Jun 04 19:31 | 3044 65.9% | 5.619 30m37s | 1375.40 81206 0.00%
Jun 04 19:32 | 3051 66.0% | 5.598 30m25s | 1380.56 81206 0.00%
Jun 04 19:32 | 3056 66.1% | 5.593 30m18s | 1381.79 81206 0.00%
Jun 04 19:32 | 3060 66.2% | 5.604 30m16s | 1379.08 81206 0.00%
Jun 04 19:32 | 3063 66.4% | 5.613 30m13s | 1376.87 81206 0.00%
Jun 04 19:32 | 3071 66.5% | 5.611 30m07s | 1377.36 81206 0.00%
Jun 04 19:32 | 3080 66.6% | 5.596 29m56s | 1381.05 81206 0.00%
Jun 04 19:32 | 3083 66.7% | 5.603 29m53s | 1379.33 81206 0.00%
Jun 04 19:32 | 3084 66.8% | 5.621 29m53s | 1374.91 81206 0.00%
Jun 04 19:32 | 3095 66.9% | 5.622 29m48s | 1374.67 81206 0.00%
Jun 04 19:32 | 3099 67.0% | 5.594 29m33s | 1381.55 81206 0.00%
Jun 04 19:32 | 3104 67.1% | 5.584 29m25s | 1384.02 81206 0.00%
Jun 04 19:33 | 3108 67.2% | 5.597 29m23s | 1380.81 81206 0.00%
Jun 04 19:33 | 3111 67.3% | 5.615 29m23s | 1376.38 81206 0.00%
Jun 04 19:33 | 3116 67.4% | 5.601 29m13s | 1379.82 81206 0.00%
Jun 04 19:33 | 3119 67.5% | 5.590 29m04s | 1382.53 81206 0.00%
Jun 04 19:33 | 3120 67.6% | 5.620 29m08s | 1375.15 81206 0.00%
Jun 04 19:33 | 3123 67.7% | 5.635 29m07s | 1371.49 81206 0.00%
Jun 04 19:33 | 3128 67.8% | 5.558 28m37s | 1390.49 81206 0.00%
Jun 04 19:33 | 3135 67.9% | 5.515 28m19s | 1401.34 81206 0.00%
Jun 04 19:33 | 3140 68.0% | 5.499 28m08s | 1405.41 81206 0.00%
Jun 04 19:33 | 3143 68.1% | 5.528 28m12s | 1398.04 81206 0.00%
Jun 04 19:34 | 3144 68.2% | 5.531 28m07s | 1397.28 81206 0.00%
Jun 04 19:34 | 3155 68.3% | 5.631 28m32s | 1372.47 81206 0.00%
Jun 04 19:34 | 3156 68.4% | 5.624 28m24s | 1374.18 81206 0.00%
Jun 04 19:34 | 3164 68.5% | 5.587 28m07s | 1383.28 81206 0.00%
Jun 04 19:34 | 3168 68.6% | 5.546 27m49s | 1393.50 81206 0.00%
Jun 04 19:34 | 3171 68.8% | 5.473 27m22s | 1412.09 81206 0.00%
Jun 04 19:34 | 3176 68.9% | 5.484 27m20s | 1409.26 81206 0.00%
Jun 04 19:34 | 3179 69.0% | 5.483 27m14s | 1409.51 81206 0.00%
Jun 04 19:34 | 3183 69.1% | 5.506 27m15s | 1403.63 81206 0.00%
Jun 04 19:34 | 3188 69.2% | 5.545 27m21s | 1393.75 81206 0.00%
Jun 04 19:34 | 3195 69.3% | 5.521 27m09s | 1399.81 81206 0.00%
Jun 04 19:35 | 3200 69.4% | 5.510 27m00s | 1402.61 81206 0.00%
Jun 04 19:35 | 3203 69.5% | 5.535 27m02s | 1396.27 81206 0.00%
Jun 04 19:35 | 3204 69.6% | 5.589 27m12s | 1382.78 81206 0.00%
Jun 04 19:35 | 3216 69.7% | 5.583 27m05s | 1384.27 81206 0.00%
Jun 04 19:35 | 3219 69.8% | 5.590 27m01s | 1382.53 81206 0.00%
Jun 04 19:35 | 3228 69.9% | 5.603 26m59s | 1379.33 81206 0.00%
Jun 04 19:35 | 3231 70.0% | 5.599 26m53s | 1380.31 81206 0.00%
Jun 04 19:35 | 3239 70.1% | 5.603 26m48s | 1379.33 81206 0.00%
Jun 04 19:35 | 3240 70.2% | 5.602 26m42s | 1379.57 81206 0.00%
Jun 04 19:35 | 3248 70.3% | 5.600 26m36s | 1380.07 81206 0.00%
Jun 04 19:35 | 3251 70.4% | 5.567 26m21s | 1388.25 81206 0.00%
Jun 04 19:36 | 3255 70.5% | 5.640 26m36s | 1370.28 81206 0.00%
Jun 04 19:36 | 3260 70.6% | 5.613 26m23s | 1376.87 81206 0.00%
Jun 04 19:36 | 3263 70.7% | 5.604 26m15s | 1379.08 81206 0.00%
Jun 04 19:36 | 3275 70.8% | 5.594 26m06s | 1381.55 81206 0.00%
Jun 04 19:36 | 3276 70.9% | 5.622 26m09s | 1374.67 81206 0.00%
Jun 04 19:36 | 3284 71.0% | 5.580 25m51s | 1385.01 81206 0.00%
Jun 04 19:36 | 3288 71.1% | 5.552 25m38s | 1392.00 81206 0.00%
mfakto will exit once the current class is finished.
press ^C again to exit immediately
mfakto will exit NOW!
2026-06-04 19:36:39 (15601): wrapper (7.24.26018): starting
2026-06-04 19:36:39 (15601): wrapper (7.24.26018): starting
2026-06-04 19:36:39 (15601): wrapper: running ./mfakto.exe (-d 0)
2026-06-04 19:36:39 (15601): wrapper: created child process 15603
mfakto 0.16.0-beta.5 (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType INTEL
SmallExp no
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
OpenCL device info
name Intel(R) Arc(TM) A580 Graphics (Intel(R) Corporation)
device (driver) version OpenCL 3.0 NEO (26.18.38308.1)
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 384 (384 compute elements)
clock rate 2400 MHz
Automatic parameters
threads per grid 0
optimizing kernels for INTEL
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=178223281 bit_min=76 bit_max=77 (85.87 GHz-days)
Starting trial factoring M178223281 from 2^76 to 2^77 (85.87 GHz-days)
Using GPU kernel "cl_barrett32_77_gs_2"
Found a valid checkpoint file.
last finished class was: 3248
no factors found so far.
previous work took 3709180 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 04 19:36 | 3251 70.4% | 5.508 26m04s | 1403.12 81206 0.00%
Jun 04 19:36 | 3255 70.5% | 5.547 26m10s | 1393.25 81206 0.00%
Jun 04 19:36 | 3260 70.6% | 5.572 26m11s | 1387.00 81206 0.00%
Jun 04 19:37 | 3263 70.7% | 5.500 25m46s | 1405.16 81206 0.00%
Jun 04 19:37 | 3275 70.8% | 5.515 25m44s | 1401.34 81206 0.00%
Jun 04 19:37 | 3276 70.9% | 5.588 25m59s | 1383.03 81206 0.00%
Jun 04 19:37 | 3284 71.0% | 5.491 25m26s | 1407.46 81206 0.00%
Jun 04 19:37 | 3288 71.1% | 5.533 25m33s | 1396.78 81206 0.00%
Jun 04 19:37 | 3291 71.2% | 5.537 25m28s | 1395.77 81206 0.00%
Jun 04 19:37 | 3296 71.4% | 5.515 25m17s | 1401.34 81206 0.00%
Jun 04 19:37 | 3300 71.5% | 5.567 25m25s | 1388.25 81206 0.00%
Jun 04 19:37 | 3303 71.6% | 5.567 25m20s | 1388.25 81206 0.00%
Jun 04 19:37 | 3308 71.7% | 5.500 24m56s | 1405.16 81206 0.00%
Jun 04 19:37 | 3311 71.8% | 5.470 24m42s | 1412.86 81206 0.00%
Jun 04 19:38 | 3315 71.9% | 5.475 24m38s | 1411.57 81206 0.00%
Jun 04 19:38 | 3324 72.0% | 5.470 24m31s | 1412.86 81206 0.00%
Jun 04 19:38 | 3335 72.1% | 5.472 24m26s | 1412.35 81206 0.00%
Jun 04 19:38 | 3336 72.2% | 5.468 24m20s | 1413.38 81206 0.00%
Jun 04 19:38 | 3339 72.3% | 5.472 24m16s | 1412.35 81206 0.00%
Jun 04 19:38 | 3344 72.4% | 5.471 24m10s | 1412.61 81206 0.00%
Jun 04 19:38 | 3351 72.5% | 5.469 24m04s | 1413.12 81206 0.00%
Jun 04 19:38 | 3359 72.6% | 5.470 23m59s | 1412.86 81206 0.00%
Jun 04 19:38 | 3360 72.7% | 5.468 23m53s | 1413.38 81206 0.00%
Jun 04 19:38 | 3363 72.8% | 5.468 23m47s | 1413.38 81206 0.00%
Jun 04 19:38 | 3368 72.9% | 5.464 23m41s | 1414.42 81206 0.00%
Jun 04 19:39 | 3371 73.0% | 5.466 23m36s | 1413.90 81206 0.00%
Jun 04 19:39 | 3375 73.1% | 5.470 23m31s | 1412.86 81206 0.00%
Jun 04 19:39 | 3380 73.2% | 5.465 23m25s | 1414.16 81206 0.00%
Jun 04 19:39 | 3384 73.3% | 5.461 23m18s | 1415.19 81206 0.00%
Jun 04 19:39 | 3395 73.4% | 5.463 23m13s | 1414.68 81206 0.00%
Jun 04 19:39 | 3396 73.5% | 5.464 23m08s | 1414.42 81206 0.00%
Jun 04 19:39 | 3399 73.6% | 5.468 23m03s | 1413.38 81206 0.00%
Jun 04 19:39 | 3408 73.8% | 5.466 22m57s | 1413.90 81206 0.00%
Jun 04 19:39 | 3416 73.9% | 5.467 22m52s | 1413.64 81206 0.00%
Jun 04 19:39 | 3419 74.0% | 5.466 22m47s | 1413.90 81206 0.00%
Jun 04 19:39 | 3420 74.1% | 5.464 22m41s | 1414.42 81206 0.00%
Jun 04 19:40 | 3423 74.2% | 5.468 22m36s | 1413.38 81206 0.00%
Jun 04 19:40 | 3428 74.3% | 5.466 22m30s | 1413.90 81206 0.00%
Jun 04 19:40 | 3431 74.4% | 5.467 22m25s | 1413.64 81206 0.00%
Jun 04 19:40 | 3435 74.5% | 5.474 22m21s | 1411.83 81206 0.00%
Jun 04 19:40 | 3440 74.6% | 5.467 22m14s | 1413.64 81206 0.00%
Jun 04 19:40 | 3443 74.7% | 5.469 22m09s | 1413.12 81206 0.00%
Jun 04 19:40 | 3456 74.8% | 5.467 22m03s | 1413.64 81206 0.00%
Jun 04 19:40 | 3459 74.9% | 5.477 22m00s | 1411.06 81206 0.00%
Jun 04 19:40 | 3464 75.0% | 5.485 21m56s | 1409.00 81206 0.00%
Jun 04 19:40 | 3468 75.1% | 5.469 21m47s | 1413.12 81206 0.00%
Jun 04 19:40 | 3471 75.2% | 5.472 21m42s | 1412.35 81206 0.00%
Jun 04 19:41 | 3476 75.3% | 5.476 21m38s | 1411.32 81206 0.00%
Jun 04 19:41 | 3479 75.4% | 5.475 21m32s | 1411.57 81206 0.00%
Jun 04 19:41 | 3480 75.5% | 5.469 21m25s | 1413.12 81206 0.00%
Jun 04 19:41 | 3483 75.6% | 5.480 21m22s | 1410.29 81206 0.00%
Jun 04 19:41 | 3491 75.7% | 5.480 21m17s | 1410.29 81206 0.00%
Jun 04 19:41 | 3500 75.8% | 5.476 21m10s | 1411.32 81206 0.00%
Jun 04 19:41 | 3503 75.9% | 5.484 21m07s | 1409.26 81206 0.00%
Jun 04 19:41 | 3504 76.0% | 5.490 21m03s | 1407.72 81206 0.00%
Jun 04 19:41 | 3515 76.1% | 5.486 20m56s | 1408.74 81206 0.00%
Jun 04 19:41 | 3519 76.2% | 5.484 20m50s | 1409.26 81206 0.00%
Jun 04 19:41 | 3524 76.4% | 5.479 20m44s | 1410.54 81206 0.00%
Jun 04 19:42 | 3528 76.5% | 5.469 20m36s | 1413.12 81206 0.00%
Jun 04 19:42 | 3531 76.6% | 5.473 20m31s | 1412.09 81206 0.00%
Jun 04 19:42 | 3536 76.7% | 5.476 20m27s | 1411.32 81206 0.00%
Jun 04 19:42 | 3539 76.8% | 5.481 20m22s | 1410.03 81206 0.00%
Jun 04 19:42 | 3540 76.9% | 5.483 20m17s | 1409.51 81206 0.00%
Jun 04 19:42 | 3548 77.0% | 5.484 20m12s | 1409.26 81206 0.00%
Jun 04 19:42 | 3555 77.1% | 5.480 20m06s | 1410.29 81206 0.00%
Jun 04 19:42 | 3560 77.2% | 5.470 19m58s | 1412.86 81206 0.00%
Jun 04 19:42 | 3563 77.3% | 5.470 19m52s | 1412.86 81206 0.00%
Jun 04 19:42 | 3564 77.4% | 5.477 19m49s | 1411.06 81206 0.00%
Jun 04 19:42 | 3575 77.5% | 5.485 19m45s | 1409.00 81206 0.00%
Jun 04 19:43 | 3584 77.6% | 5.478 19m38s | 1410.80 81206 0.00%
Jun 04 19:43 | 3588 77.7% | 5.472 19m31s | 1412.35 81206 0.00%
Jun 04 19:43 | 3591 77.8% | 5.477 19m27s | 1411.06 81206 0.00%
Jun 04 19:43 | 3596 77.9% | 5.481 19m22s | 1410.03 81206 0.00%
Jun 04 19:43 | 3599 78.0% | 5.485 19m17s | 1409.00 81206 0.00%
Jun 04 19:43 | 3603 78.1% | 5.475 19m10s | 1411.57 81206 0.00%
Jun 04 19:43 | 3608 78.2% | 5.466 19m02s | 1413.90 81206 0.00%
Jun 04 19:43 | 3611 78.3% | 5.474 18m59s | 1411.83 81206 0.00%
Jun 04 19:43 | 3615 78.4% | 5.472 18m53s | 1412.35 81206 0.00%
Jun 04 19:43 | 3623 78.5% | 5.486 18m50s | 1408.74 81206 0.00%
Jun 04 19:43 | 3624 78.6% | 5.485 18m44s | 1409.00 81206 0.00%
Jun 04 19:44 | 3636 78.8% | 5.474 18m37s | 1411.83 81206 0.00%
Jun 04 19:44 | 3639 78.9% | 5.469 18m30s | 1413.12 81206 0.00%
Jun 04 19:44 | 3644 79.0% | 5.474 18m26s | 1411.83 81206 0.00%
Jun 04 19:44 | 3648 79.1% | 5.470 18m19s | 1412.86 81206 0.00%
Jun 04 19:44 | 3651 79.2% | 5.473 18m15s | 1412.09 81206 0.00%
Jun 04 19:44 | 3659 79.3% | 5.475 18m10s | 1411.57 81206 0.00%
Jun 04 19:44 | 3660 79.4% | 5.481 18m05s | 1410.03 81206 0.00%
Jun 04 19:44 | 3668 79.5% | 5.472 17m58s | 1412.35 81206 0.00%
Jun 04 19:44 | 3671 79.6% | 5.474 17m53s | 1411.83 81206 0.00%
Jun 04 19:44 | 3680 79.7% | 5.476 17m48s | 1411.32 81206 0.00%
Jun 04 19:44 | 3683 79.8% | 5.485 17m44s | 1409.00 81206 0.00%
Jun 04 19:45 | 3695 79.9% | 5.473 17m36s | 1412.09 81206 0.00%
Jun 04 19:45 | 3696 80.0% | 5.467 17m30s | 1413.64 81206 0.00%
Jun 04 19:45 | 3699 80.1% | 5.473 17m25s | 1412.09 81206 0.00%
Jun 04 19:45 | 3704 80.2% | 5.471 17m19s | 1412.61 81206 0.00%
Jun 04 19:45 | 3711 80.3% | 5.472 17m14s | 1412.35 81206 0.00%
Jun 04 19:45 | 3716 80.4% | 5.469 17m08s | 1413.12 81206 0.00%
Jun 04 19:45 | 3720 80.5% | 5.477 17m04s | 1411.06 81206 0.00%
Jun 04 19:45 | 3723 80.6% | 5.484 17m00s | 1409.26 81206 0.00%
Jun 04 19:45 | 3728 80.7% | 5.479 16m54s | 1410.54 81206 0.00%
Jun 04 19:45 | 3731 80.8% | 5.469 16m46s | 1413.12 81206 0.00%
Jun 04 19:45 | 3735 80.9% | 5.480 16m43s | 1410.29 81206 0.00%
Jun 04 19:46 | 3743 81.0% | 5.485 16m38s | 1409.00 81206 0.00%
Jun 04 19:46 | 3744 81.1% | 5.473 16m31s | 1412.09 81206 0.00%
Jun 04 19:46 | 3755 81.2% | 5.469 16m24s | 1413.12 81206 0.00%
Jun 04 19:46 | 3756 81.4% | 5.470 16m19s | 1412.86 81206 0.00%
Jun 04 19:46 | 3759 81.5% | 5.476 16m15s | 1411.32 81206 0.00%
Jun 04 19:46 | 3764 81.6% | 5.473 16m09s | 1412.09 81206 0.00%
Jun 04 19:46 | 3771 81.7% | 5.480 16m04s | 1410.29 81206 0.00%
Jun 04 19:46 | 3776 81.8% | 5.483 16m00s | 1409.51 81206 0.00%
Jun 04 19:46 | 3779 81.9% | 5.470 15m52s | 1412.86 81206 0.00%
Jun 04 19:46 | 3780 82.0% | 5.481 15m48s | 1410.03 81206 0.00%
Jun 04 19:46 | 3783 82.1% | 5.476 15m42s | 1411.32 81206 0.00%
Jun 04 19:47 | 3788 82.2% | 5.469 15m35s | 1413.12 81206 0.00%
Jun 04 19:47 | 3791 82.3% | 5.467 15m29s | 1413.64 81206 0.00%
Jun 04 19:47 | 3795 82.4% | 5.466 15m24s | 1413.90 81206 0.00%
Jun 04 19:47 | 3800 82.5% | 5.471 15m19s | 1412.61 81206 0.00%
Jun 04 19:47 | 3804 82.6% | 5.468 15m13s | 1413.38 81206 0.00%
Jun 04 19:47 | 3815 82.7% | 5.471 15m08s | 1412.61 81206 0.00%
Jun 04 19:47 | 3816 82.8% | 5.472 15m03s | 1412.35 81206 0.00%
Jun 04 19:47 | 3819 82.9% | 5.473 14m58s | 1412.09 81206 0.00%
Jun 04 19:47 | 3828 83.0% | 5.483 14m54s | 1409.51 81206 0.00%
Jun 04 19:47 | 3836 83.1% | 5.479 14m48s | 1410.54 81206 0.00%
Jun 04 19:47 | 3839 83.2% | 5.473 14m41s | 1412.09 81206 0.00%
Jun 04 19:48 | 3843 83.3% | 5.470 14m35s | 1412.86 81206 0.00%
Jun 04 19:48 | 3848 83.4% | 5.468 14m29s | 1413.38 81206 0.00%
Jun 04 19:48 | 3855 83.5% | 5.467 14m24s | 1413.64 81206 0.00%
Jun 04 19:48 | 3860 83.6% | 5.465 14m18s | 1414.16 81206 0.00%
Jun 04 19:48 | 3863 83.8% | 5.469 14m13s | 1413.12 81206 0.00%
Jun 04 19:48 | 3864 83.9% | 5.470 14m08s | 1412.86 81206 0.00%
Jun 04 19:48 | 3875 84.0% | 5.469 14m02s | 1413.12 81206 0.00%
Jun 04 19:48 | 3876 84.1% | 5.471 13m57s | 1412.61 81206 0.00%
Jun 04 19:48 | 3879 84.2% | 5.470 13m51s | 1412.86 81206 0.00%
Jun 04 19:48 | 3888 84.3% | 5.471 13m46s | 1412.61 81206 0.00%
Jun 04 19:48 | 3891 84.4% | 5.473 13m41s | 1412.09 81206 0.00%
Jun 04 19:49 | 3896 84.5% | 5.463 13m34s | 1414.68 81206 0.00%
Jun 04 19:49 | 3899 84.6% | 5.472 13m30s | 1412.35 81206 0.00%
Jun 04 19:49 | 3900 84.7% | 5.468 13m24s | 1413.38 81206 0.00%
Jun 04 19:49 | 3903 84.8% | 5.468 13m18s | 1413.38 81206 0.00%
Jun 04 19:49 | 3911 84.9% | 5.471 13m13s | 1412.61 81206 0.00%
Jun 04 19:49 | 3920 85.0% | 5.469 13m08s | 1413.12 81206 0.00%
Jun 04 19:49 | 3923 85.1% | 5.473 13m03s | 1412.09 81206 0.00%
Jun 04 19:49 | 3924 85.2% | 5.471 12m57s | 1412.61 81206 0.00%
Jun 04 19:49 | 3935 85.3% | 5.473 12m52s | 1412.09 81206 0.00%
Jun 04 19:49 | 3944 85.4% | 5.475 12m47s | 1411.57 81206 0.00%
Jun 04 19:49 | 3948 85.5% | 5.470 12m40s | 1412.86 81206 0.00%
Jun 04 19:50 | 3951 85.6% | 5.470 12m35s | 1412.86 81206 0.00%
Jun 04 19:50 | 3956 85.7% | 5.468 12m29s | 1413.38 81206 0.00%
Jun 04 19:50 | 3959 85.8% | 5.468 12m24s | 1413.38 81206 0.00%
Jun 04 19:50 | 3960 85.9% | 5.472 12m19s | 1412.35 81206 0.00%
Jun 04 19:50 | 3963 86.0% | 5.472 12m13s | 1412.35 81206 0.00%
Jun 04 19:50 | 3968 86.1% | 5.469 12m07s | 1413.12 81206 0.00%
Jun 04 19:50 | 3975 86.2% | 5.471 12m02s | 1412.61 81206 0.00%
Jun 04 19:50 | 3980 86.4% | 5.475 11m57s | 1411.57 81206 0.00%
Jun 04 19:50 | 3984 86.5% | 5.476 11m52s | 1411.32 81206 0.00%
Jun 04 19:50 | 3995 86.6% | 5.466 11m45s | 1413.90 81206 0.00%
Jun 04 19:50 | 3996 86.7% | 5.468 11m40s | 1413.38 81206 0.00%
Jun 04 19:51 | 4004 86.8% | 5.470 11m35s | 1412.86 81206 0.00%
Jun 04 19:51 | 4008 86.9% | 5.466 11m29s | 1413.90 81206 0.00%
Jun 04 19:51 | 4011 87.0% | 5.470 11m24s | 1412.86 81206 0.00%
Jun 04 19:51 | 4019 87.1% | 5.471 11m18s | 1412.61 81206 0.00%
Jun 04 19:51 | 4023 87.2% | 5.470 11m13s | 1412.86 81206 0.00%
Jun 04 19:51 | 4028 87.3% | 5.471 11m07s | 1412.61 81206 0.00%
Jun 04 19:51 | 4031 87.4% | 5.482 11m03s | 1409.77 81206 0.00%
Jun 04 19:51 | 4035 87.5% | 5.477 10m57s | 1411.06 81206 0.00%
Jun 04 19:51 | 4040 87.6% | 5.467 10m51s | 1413.64 81206 0.00%
Jun 04 19:51 | 4043 87.7% | 5.468 10m45s | 1413.38 81206 0.00%
Jun 04 19:52 | 4044 87.8% | 5.470 10m40s | 1412.86 81206 0.00%
Jun 04 19:52 | 4056 87.9% | 5.467 10m34s | 1413.64 81206 0.00%
Jun 04 19:52 | 4059 88.0% | 5.471 10m29s | 1412.61 81206 0.00%
Jun 04 19:52 | 4064 88.1% | 5.466 10m23s | 1413.90 81206 0.00%
Jun 04 19:52 | 4068 88.2% | 5.468 10m18s | 1413.38 81206 0.00%
Jun 04 19:52 | 4079 88.3% | 5.470 10m13s | 1412.86 81206 0.00%
Jun 04 19:52 | 4080 88.4% | 5.470 10m07s | 1412.86 81206 0.00%
Jun 04 19:52 | 4088 88.5% | 5.472 10m02s | 1412.35 81206 0.00%
Jun 04 19:52 | 4091 88.6% | 5.483 9m58s | 1409.51 81206 0.00%
Jun 04 19:52 | 4095 88.8% | 5.476 9m51s | 1411.32 81206 0.00%
Jun 04 19:52 | 4100 88.9% | 5.468 9m45s | 1413.38 81206 0.00%
Jun 04 19:53 | 4103 89.0% | 5.467 9m40s | 1413.64 81206 0.00%
Jun 04 19:53 | 4116 89.1% | 5.469 9m34s | 1413.12 81206 0.00%
Jun 04 19:53 | 4119 89.2% | 5.472 9m29s | 1412.35 81206 0.00%
Jun 04 19:53 | 4124 89.3% | 5.470 9m23s | 1412.86 81206 0.00%
Jun 04 19:53 | 4128 89.4% | 5.466 9m18s | 1413.90 81206 0.00%
Jun 04 19:53 | 4131 89.5% | 5.471 9m13s | 1412.61 81206 0.00%
Jun 04 19:53 | 4136 89.6% | 5.471 9m07s | 1412.61 81206 0.00%
Jun 04 19:53 | 4140 89.7% | 5.469 9m01s | 1413.12 81206 0.00%
Jun 04 19:53 | 4143 89.8% | 5.473 8m56s | 1412.09 81206 0.00%
Jun 04 19:53 | 4151 89.9% | 5.475 8m51s | 1411.57 81206 0.00%
Jun 04 19:53 | 4155 90.0% | 5.468 8m45s | 1413.38 81206 0.00%
Jun 04 19:54 | 4163 90.1% | 5.471 8m40s | 1412.61 81206 0.00%
Jun 04 19:54 | 4164 90.2% | 5.468 8m34s | 1413.38 81206 0.00%
Jun 04 19:54 | 4175 90.3% | 5.470 8m29s | 1412.86 81206 0.00%
Jun 04 19:54 | 4176 90.4% | 5.472 8m23s | 1412.35 81206 0.00%
Jun 04 19:54 | 4179 90.5% | 5.482 8m19s | 1409.77 81206 0.00%
Jun 04 19:54 | 4184 90.6% | 5.476 8m13s | 1411.32 81206 0.00%
Jun 04 19:54 | 4191 90.7% | 5.470 8m07s | 1412.86 81206 0.00%
Jun 04 19:54 | 4196 90.8% | 5.470 8m01s | 1412.86 81206 0.00%
Jun 04 19:54 | 4199 90.9% | 5.472 7m56s | 1412.35 81206 0.00%
Jun 04 19:54 | 4200 91.0% | 5.469 7m50s | 1413.12 81206 0.00%
Jun 04 19:54 | 4208 91.1% | 5.472 7m45s | 1412.35 81206 0.00%
Jun 04 19:55 | 4211 91.2% | 5.472 7m40s | 1412.35 81206 0.00%
Jun 04 19:55 | 4215 91.4% | 5.473 7m34s | 1412.09 81206 0.00%
Jun 04 19:55 | 4220 91.5% | 5.470 7m29s | 1412.86 81206 0.00%
Jun 04 19:55 | 4224 91.6% | 5.469 7m23s | 1413.12 81206 0.00%
Jun 04 19:55 | 4235 91.7% | 5.482 7m19s | 1409.77 81206 0.00%
Jun 04 19:55 | 4239 91.8% | 5.475 7m13s | 1411.57 81206 0.00%
Jun 04 19:55 | 4248 91.9% | 5.465 7m06s | 1414.16 81206 0.00%
Jun 04 19:55 | 4256 92.0% | 5.481 7m02s | 1410.03 81206 0.00%
Jun 04 19:55 | 4259 92.1% | 5.575 7m04s | 1386.25 81206 0.00%
Jun 04 19:55 | 4260 92.2% | 5.567 6m58s | 1388.25 81206 0.00%
mfakto will exit once the current class is finished.
press ^C again to exit immediately
Jun 04 19:55 | 4263 92.3% | 5.569 6m52s | 1387.75 81206 0.00%
2026-06-04 19:55:56 (15712): wrapper (7.24.26018): starting
2026-06-04 19:55:56 (15712): wrapper (7.24.26018): starting
2026-06-04 19:55:56 (15712): wrapper: running ./mfakto.exe (-d 0)
2026-06-04 19:55:56 (15712): wrapper: created child process 15714
mfakto 0.16.0-beta.5 (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType INTEL
SmallExp no
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
OpenCL device info
name Intel(R) Arc(TM) A580 Graphics (Intel(R) Corporation)
device (driver) version OpenCL 3.0 NEO (26.18.38308.1)
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 384 (384 compute elements)
clock rate 2400 MHz
Automatic parameters
threads per grid 0
optimizing kernels for INTEL
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=178223281 bit_min=76 bit_max=77 (85.87 GHz-days)
Starting trial factoring M178223281 from 2^76 to 2^77 (85.87 GHz-days)
Using GPU kernel "cl_barrett32_77_gs_2"
Found a valid checkpoint file.
last finished class was: 4263
no factors found so far.
previous work took 4864966 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 04 19:56 | 4268 92.4% | 5.526 6m43s | 1398.55 81206 0.00%
Jun 04 19:56 | 4271 92.5% | 5.590 6m42s | 1382.53 81206 0.00%
Jun 04 19:56 | 4275 92.6% | 5.540 6m33s | 1395.01 81206 0.00%
Jun 04 19:56 | 4283 92.7% | 5.524 6m27s | 1399.05 81206 0.00%
Jun 04 19:56 | 4284 92.8% | 5.527 6m21s | 1398.29 81206 0.00%
Jun 04 19:56 | 4295 92.9% | 5.551 6m17s | 1392.25 81206 0.00%
Jun 04 19:56 | 4296 93.0% | 5.563 6m13s | 1389.24 81206 0.00%
Jun 04 19:56 | 4299 93.1% | 5.568 6m07s | 1388.00 81206 0.00%
Jun 04 19:56 | 4304 93.2% | 5.547 6m01s | 1393.25 81206 0.00%
Jun 04 19:56 | 4308 93.3% | 5.520 5m53s | 1400.07 81206 0.00%
Jun 04 19:56 | 4311 93.4% | 5.598 5m53s | 1380.56 81206 0.00%
Jun 04 19:57 | 4316 93.5% | 5.567 5m45s | 1388.25 81206 0.00%
Jun 04 19:57 | 4319 93.6% | 5.596 5m41s | 1381.05 81206 0.00%
Jun 04 19:57 | 4320 93.8% | 5.564 5m34s | 1389.00 81206 0.00%
Jun 04 19:57 | 4323 93.9% | 5.581 5m29s | 1384.76 81206 0.00%
Jun 04 19:57 | 4331 94.0% | 5.561 5m23s | 1389.74 81206 0.00%
Jun 04 19:57 | 4340 94.1% | 5.555 5m17s | 1391.25 81206 0.00%
Jun 04 19:57 | 4343 94.2% | 5.570 5m12s | 1387.50 81206 0.00%
Jun 04 19:57 | 4344 94.3% | 5.488 5m02s | 1408.23 81206 0.00%
Jun 04 19:57 | 4355 94.4% | 5.483 4m56s | 1409.51 81206 0.00%
Jun 04 19:57 | 4359 94.5% | 5.469 4m50s | 1413.12 81206 0.00%
Jun 04 19:57 | 4364 94.6% | 5.472 4m45s | 1412.35 81206 0.00%
Jun 04 19:58 | 4371 94.7% | 5.473 4m39s | 1412.09 81206 0.00%
Jun 04 19:58 | 4376 94.8% | 5.472 4m34s | 1412.35 81206 0.00%
Jun 04 19:58 | 4380 94.9% | 5.467 4m28s | 1413.64 81206 0.00%
Jun 04 19:58 | 4383 95.0% | 5.472 4m23s | 1412.35 81206 0.00%
Jun 04 19:58 | 4388 95.1% | 5.474 4m17s | 1411.83 81206 0.00%
Jun 04 19:58 | 4395 95.2% | 5.485 4m12s | 1409.00 81206 0.00%
Jun 04 19:58 | 4400 95.3% | 5.479 4m07s | 1410.54 81206 0.00%
Jun 04 19:58 | 4403 95.4% | 5.467 4m01s | 1413.64 81206 0.00%
Jun 04 19:58 | 4404 95.5% | 5.526 3m58s | 1398.55 81206 0.00%
Jun 04 19:58 | 4415 95.6% | 5.559 3m53s | 1390.24 81206 0.00%
Jun 04 19:58 | 4416 95.7% | 5.555 3m48s | 1391.25 81206 0.00%
Jun 04 19:59 | 4424 95.8% | 5.472 3m39s | 1412.35 81206 0.00%
Jun 04 19:59 | 4428 95.9% | 5.468 3m33s | 1413.38 81206 0.00%
Jun 04 19:59 | 4431 96.0% | 5.472 3m28s | 1412.35 81206 0.00%
mfakto will exit once the current class is finished.
press ^C again to exit immediately
mfakto will exit NOW!
2026-06-04 20:02:41 (16171): wrapper (7.24.26018): starting
2026-06-04 20:02:41 (16171): wrapper (7.24.26018): starting
2026-06-04 20:02:41 (16171): wrapper: running ./mfakto.exe (-d 0)
2026-06-04 20:02:41 (16171): wrapper: created child process 16173
mfakto 0.16.0-beta.5 (64-bit build)
Runtime options
INI file mfakto.ini
Verbosity 1
SieveOnGPU yes
MoreClasses yes
GPUSievePrimes 81157
GPUSieveProcessSize 24 Kib
GPUSieveSize 96 Mib
FlushInterval 0
WorkFile worktodo.txt
ResultsFile results.txt
JSONResultsFile results.json.txt
LogFile mfakto.log
Checkpoints enabled
CheckpointDelay 60 s
Stages disabled
StopAfterFactor bit level
PrintMode compact
Logging disabled
V5UserID none
ComputerID none
TimeStampInResults yes
LegacyResultsTxt no
VectorSize 2
GPUType INTEL
SmallExp no
UseBinfile mfakto_Kernels.elf
Compile-time options
Select device - Get device info:
OpenCL device info
name Intel(R) Arc(TM) A580 Graphics (Intel(R) Corporation)
device (driver) version OpenCL 3.0 NEO (26.18.38308.1)
maximum threads per block 1024
maximum threads per grid 1073741824
number of multiprocessors 384 (384 compute elements)
clock rate 2400 MHz
Automatic parameters
threads per grid 0
optimizing kernels for INTEL
Loading binary kernel file mfakto_Kernels.elf
Compiling kernels.
GPUSievePrimes (adjusted) 81206
GPUsieve minimum exponent 1037054
Started a simple self-test ...
######### test case 1/30 (M1031831[63-64]) #########
######### test case 2/30 (M51332417[68-69]) #########
######### test case 3/30 (M50896831[69-70]) #########
######### test case 4/30 (M50979079[70-71]) #########
######### test case 5/30 (M51232133[71-72]) #########
######### test case 6/30 (M50830523[71-72]) #########
######### test case 7/30 (M50752613[72-73]) #########
######### test case 8/30 (M51507913[72-73]) #########
######### test case 9/30 (M51916901[73-74]) #########
######### test case 10/30 (M51157933[74-75]) #########
######### test case 11/30 (M51308501[75-76]) #########
######### test case 12/30 (M51671491[75-76]) #########
######### test case 13/30 (M50805581[77-78]) #########
######### test case 14/30 (M51157429[78-79]) #########
######### test case 15/30 (M51406151[78-79]) #########
######### test case 16/30 (M51478381[79-80]) #########
######### test case 17/30 (M51350527[80-81]) #########
######### test case 18/30 (M53061139[80-81]) #########
######### test case 19/30 (M48629519[81-82]) #########
######### test case 20/30 (M51752893[83-84]) #########
######### test case 21/30 (M51760133[83-84]) #########
######### test case 22/30 (M51090757[84-85]) #########
######### test case 23/30 (M51050171[84-85]) #########
######### test case 24/30 (M50989481[86-87]) #########
######### test case 25/30 (M50856937[86-87]) #########
######### test case 26/30 (M53065231[88-89]) #########
######### test case 27/30 (M3321929777[63-64]) #########
######### test case 28/30 (M3321930841[63-64]) #########
######### test case 29/30 (M55069117[64-65]) #########
######### test case 30/30 (M45448679[81-82]) #########
Self-test statistics
number of tests 30
successful tests 30
self-test PASSED!
got assignment: exp=178223281 bit_min=76 bit_max=77 (85.87 GHz-days)
Starting trial factoring M178223281 from 2^76 to 2^77 (85.87 GHz-days)
Using GPU kernel "cl_barrett32_77_gs_2"
Found a valid checkpoint file.
last finished class was: 4416
no factors found so far.
previous work took 5047355 ms
Date Time | class Pct | time ETA | GHz-d/day Sieve Wait
Jun 04 20:02 | 4424 95.8% | 5.497 3m40s | 1405.92 81206 0.00%
Jun 04 20:02 | 4428 95.9% | 5.584 3m38s | 1384.02 81206 0.00%
Jun 04 20:02 | 4431 96.0% | 5.482 3m28s | 1409.77 81206 0.00%
Jun 04 20:03 | 4436 96.1% | 5.530 3m25s | 1397.54 81206 0.00%
Jun 04 20:03 | 4439 96.2% | 5.541 3m19s | 1394.76 81206 0.00%
Jun 04 20:03 | 4443 96.4% | 5.529 3m14s | 1397.79 81206 0.00%
Jun 04 20:03 | 4448 96.5% | 5.584 3m10s | 1384.02 81206 0.00%
Jun 04 20:03 | 4451 96.6% | 5.616 3m05s | 1376.13 81206 0.00%
Jun 04 20:03 | 4455 96.7% | 5.546 2m57s | 1393.50 81206 0.00%
Jun 04 20:03 | 4460 96.8% | 5.501 2m51s | 1404.90 81206 0.00%
Jun 04 20:03 | 4463 96.9% | 5.527 2m46s | 1398.29 81206 0.00%
Jun 04 20:03 | 4464 97.0% | 5.552 2m41s | 1392.00 81206 0.00%
Jun 04 20:03 | 4476 97.1% | 5.551 2m35s | 1392.25 81206 0.00%
Jun 04 20:03 | 4479 97.2% | 5.499 2m28s | 1405.41 81206 0.00%
Jun 04 20:04 | 4484 97.3% | 5.470 2m22s | 1412.86 81206 0.00%
Jun 04 20:04 | 4488 97.4% | 5.480 2m17s | 1410.29 81206 0.00%
Jun 04 20:04 | 4491 97.5% | 5.471 2m11s | 1412.61 81206 0.00%
Jun 04 20:04 | 4499 97.6% | 5.474 2m06s | 1411.83 81206 0.00%
Jun 04 20:04 | 4508 97.7% | 5.475 2m00s | 1411.57 81206 0.00%
Jun 04 20:04 | 4515 97.8% | 5.471 1m55s | 1412.61 81206 0.00%
Jun 04 20:04 | 4520 97.9% | 5.472 1m49s | 1412.35 81206 0.00%
Jun 04 20:04 | 4523 98.0% | 5.474 1m44s | 1411.83 81206 0.00%
Jun 04 20:04 | 4535 98.1% | 5.474 1m39s | 1411.83 81206 0.00%
Jun 04 20:04 | 4536 98.2% | 5.473 1m33s | 1412.09 81206 0.00%
Jun 04 20:04 | 4539 98.3% | 5.473 1m28s | 1412.09 81206 0.00%
Jun 04 20:05 | 4548 98.4% | 5.467 1m22s | 1413.64 81206 0.00%
Jun 04 20:05 | 4551 98.5% | 5.485 1m17s | 1409.00 81206 0.00%
Jun 04 20:05 | 4556 98.6% | 5.513 1m12s | 1401.84 81206 0.00%
Jun 04 20:05 | 4560 98.8% | 5.470 1m06s | 1412.86 81206 0.00%
Jun 04 20:05 | 4563 98.9% | 5.475 1m00s | 1411.57 81206 0.00%
Jun 04 20:05 | 4568 99.0% | 5.469 0m55s | 1413.12 81206 0.00%
Jun 04 20:05 | 4571 99.1% | 5.468 0m49s | 1413.38 81206 0.00%
Jun 04 20:05 | 4575 99.2% | 5.472 0m44s | 1412.35 81206 0.00%
Jun 04 20:05 | 4583 99.3% | 5.467 0m38s | 1413.64 81206 0.00%
Jun 04 20:05 | 4584 99.4% | 5.470 0m33s | 1412.86 81206 0.00%
Jun 04 20:06 | 4595 99.5% | 5.470 0m27s | 1412.86 81206 0.00%
Jun 04 20:06 | 4596 99.6% | 5.465 0m22s | 1414.16 81206 0.00%
Jun 04 20:06 | 4604 99.7% | 5.466 0m16s | 1413.90 81206 0.00%
Jun 04 20:06 | 4611 99.8% | 5.470 0m11s | 1412.86 81206 0.00%
Jun 04 20:06 | 4616 99.9% | 5.469 0m05s | 1413.12 81206 0.00%
Jun 04 20:06 | 4619 100.0% | 5.464 0m00s | 1414.42 81206 0.00%
no factor for M178223281 from 2^76 to 2^77 [mfakto 0.16.0-beta.5 cl_barrett32_77_gs_2]
tf(): time spent since restart: 3m 45.382s
estimated total time spent: 1h 27m 57.237s
ERROR: get_next_assignment(): no valid assignment found in "worktodo.txt"
2026-06-04 20:06:27 (16171): ./mfakto.exe exited; CPU time 0.345609
2026-06-04 20:06:27 (16171): called boinc_finish(0)
</stderr_txt>
]]>