fflas-ffpack `master`: Error tuning fflas-ffpack, `FFPACK::CharpolyFailed` on `linuxmint-21.1-minimal`
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mkoeppe commented
On linuxmint-21.1-minimal, tested using
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[fflas_ffpack-git] ========= FFLAS-FFPACK CharPoly Autotuning =========
[fflas_ffpack-git] =================================================
[fflas_ffpack-git]
[fflas_ffpack-git]
[fflas_ffpack-git] ---------------------------------------------------------------------
[fflas_ffpack-git] Tue Jan 2 06:32:55 2024
[fflas_ffpack-git]
[fflas_ffpack-git] Threshold for ArithProg CharPoly algorithm (using ModularBalanced<double> modulo 2097169)
[fflas_ffpack-git]
[fflas_ffpack-git] Charpoly: n = 800 degree seconds Gfops
[fflas_ffpack-git] 16 0.128364 10.7694
[fflas_ffpack-git] 18 0.126115 10.9614
[fflas_ffpack-git] 20 0.122542 11.281
[fflas_ffpack-git] 22 0.124405 11.1121
[fflas_ffpack-git] 24 0.124247 11.1262
[fflas_ffpack-git] 26 0.126216 10.9527
[fflas_ffpack-git] 28 0.1[233](https://github.com/linbox-team/fflas-ffpack/actions/runs/7382353719/job/20082051368?pr=386#step:14:234)05 11.2112
[fflas_ffpack-git] 30 0.12327 11.2144
[fflas_ffpack-git] 32 0.120128 11.5078
[fflas_ffpack-git] 34 0.116568 11.8592
[fflas_ffpack-git] 36 0.128554 10.7535
[fflas_ffpack-git] 38 0.125419 11.0223
[fflas_ffpack-git] 40 0.119676 11.5512
[fflas_ffpack-git] 42 0.120824 11.4414
[fflas_ffpack-git] 44 0.125166 11.0445
[fflas_ffpack-git] 46 0.121926 11.338
[fflas_ffpack-git] 48 0.118205 11.6949
[fflas_ffpack-git] 50 0.11446 12.0776
[fflas_ffpack-git] 52 0.11609 11.908
[fflas_ffpack-git] 54 0.129748 10.6545
[fflas_ffpack-git] 56 0.132074 10.4668
[fflas_ffpack-git] 58 0.127898 10.8086
[fflas_ffpack-git] 60 0.130426 10.5991
[fflas_ffpack-git] 62 0.122847 11.253
[fflas_ffpack-git]
[fflas_ffpack-git] defined __FFLASFFPACK_ARITHPROG_THRESHOLD to 50
[fflas_ffpack-git]
[fflas_ffpack-git] ---------------------------------------------------------------------
[fflas_ffpack-git] Tue Jan 2 06:33:07 2024
[fflas_ffpack-git]
[fflas_ffpack-git] Threshold between CharPoly algorithms LUKrylov <-> ArithProg (using ModularBalanced<double> modulo 4194301)
[fflas_ffpack-git]
[fflas_ffpack-git] Charpoly: n LUKrylov ArithProg
[fflas_ffpack-git] seconds Gfops seconds Gfops
[fflas_ffpack-git] 1024 0.233906 12.3943 0.399735 7.25256
[fflas_ffpack-git] 1152 0.[236](https://github.com/linbox-team/fflas-ffpack/actions/runs/7382353719/job/20082051368?pr=386#step:14:237)326 17.4666 0.421991 9.78179
[fflas_ffpack-git] 1280 0.323072 17.5265 0.562646 10.0637
[fflas_ffpack-git] 1408 0.409733 18.3938 0.67757 11.1229
[fflas_ffpack-git] 1536 0.564611 17.3296 0.987837 9.90495
[fflas_ffpack-git] 1664 0.665488 18.6932 1.01767 12.2[241](https://github.com/linbox-team/fflas-ffpack/actions/runs/7382353719/job/20082051368?pr=386#step:14:242)
[fflas_ffpack-git] 1792 0.862928 18.0054 1.25851 12.3458
[fflas_ffpack-git] 1920 1.08975 17.5364 1.44225 13.[250](https://github.com/linbox-team/fflas-ffpack/actions/runs/7382353719/job/20082051368?pr=386#step:14:251)4
[fflas_ffpack-git] 2048 1.48028 15.6678 2.14421 10.8165
[fflas_ffpack-git] 2176 1.76947 15.7216 1.99125 13.9706
[fflas_ffpack-git] 2304 2.[256](https://github.com/linbox-team/fflas-ffpack/actions/runs/7382353719/job/20082051368?pr=386#step:14:257)3 14.6357 2.38358 13.8542
[fflas_ffpack-git] terminate called after throwing an instance of 'FFPACK::CharpolyFailed'
[fflas_ffpack-git] make[4]: *** [Makefile:976: autotune] Error 134
[fflas_ffpack-git] make[3]: *** [Makefile:1012: autotune] Error 2
[fflas_ffpack-git] Error tuning fflas-ffpack