Adapt ROOT fitting to the new generalized Executor

[xvallspl]

No description provided.

[guitargeek]

Hi @xvallspl, @lmoneta , what's the status of this PR? It looks like a nice simplification to me

[phsft-bot]

Starting build on ROOT-performance-centos8-multicore/soversion, ROOT-ubuntu2204/nortcxxmod, ROOT-ubuntu2004/python3, mac12arm/cxx20, windows10/default
How to customize builds

[guitargeek]

Hi @xvallspl, @lmoneta , what's the status of this PR? It looks like a nice simplification to me

Since there was no answer I rebased the PR on master and solved the conflicts. Maybe seeing now the CI results will help us to make a decision on how to continue

[phsft-bot]

Build failed on ROOT-ubuntu2204/nortcxxmod.
Running on root-ubuntu-2204-2.cern.ch:/home/sftnight/build/workspace/root-pullrequests-build
See console output.

Failing tests:

• projectroot.test.test_stresshistofit_interpreted
• projectroot.test.test_stressgraphics_interpreted
• projectroot.test.test_TFormulaTests
• projectroot.test.test_stresshistogram_interpreted
• projectroot.bindings.pyroot.pythonizations.test.pyunittests_pyroot_pyz_tf_pycallables
• projectroot.hist.hist.test.gtest_hist_hist_test_testTKDE
• projectroot.math.genetic.test.genetic_GAMinTutorial
• projectroot.math.mathcore.test.mathcore_SparseFit3
• projectroot.math.mathcore.test.mathcore_SparseFit4
• projectroot.math.mathcore.test.mathcore_testFit

And 10 more

[phsft-bot]

Build failed on ROOT-performance-centos8-multicore/soversion.
Running on olbdw-01.cern.ch:/data/sftnight/workspace/root-pullrequests-build
See console output.

Failing tests:

• projectroot.runtutorials.tutorial_fit_fitslicesy
• projectroot.runtutorials.tutorial_multicore_mp104_processH1
• projectroot.runtutorials.tutorial_fit_ConfidenceIntervals
• projectroot.runtutorials.tutorial_fit_ErrorIntegral
• projectroot.runtutorials.tutorial_fit_FittingDemo
• projectroot.runtutorials.tutorial_fit_TestBinomial
• projectroot.runtutorials.tutorial_fit_fit2
• projectroot.runtutorials.tutorial_fit_fit2a
• projectroot.runtutorials.tutorial_fit_exampleFit3D
• projectroot.runtutorials.tutorial_fit_fit1

And 80 more

[phsft-bot]

Build failed on ROOT-ubuntu2004/python3.
Running on root-ubuntu-2004-1.cern.ch:/home/sftnight/build/workspace/root-pullrequests-build
See console output.

Failing tests:

• projectroot.test.test_stresshistofit_interpreted
• projectroot.test.test_stressgraphics_interpreted
• projectroot.test.test_TFormulaTests
• projectroot.test.test_stresshistogram_interpreted
• projectroot.bindings.pyroot.pythonizations.test.pyunittests_pyroot_pyz_tf_pycallables
• projectroot.hist.hist.test.gtest_hist_hist_test_testTKDE
• projectroot.math.genetic.test.genetic_GAMinTutorial
• projectroot.math.mathcore.test.mathcore_SparseFit3
• projectroot.math.mathcore.test.mathcore_SparseFit4
• projectroot.math.mathcore.test.mathcore_testFit

And 10 more

[github-actions]

Test Results

         9 files           9 suites   1d 15h 55m 28s ⏱️
  2 484 tests   2 390 ✔️ 0 💤   94 ❌
21 375 runs  20 699 ✔️ 0 💤 676 ❌

For more details on these failures, see this check.

Results for commit b2d83b0.

[phsft-bot]

Build failed on windows10/default.
Running on null:C:\build\workspace\root-pullrequests-build
See console output.

Failing tests:

• projectroot.test.test_TFormulaTests
• projectroot.bindings.pyroot.pythonizations.test.pyunittests_pyroot_pyz_tf_pycallables
• projectroot.hist.hist.test.gtest_hist_hist_test_testTKDE
• projectroot.math.genetic.test.genetic_GAMinTutorial
• projectroot.math.mathcore.test.mathcore_SparseFit3
• projectroot.math.mathcore.test.mathcore_SparseFit4
• projectroot.math.mathcore.test.mathcore_testGraphFit
• projectroot.math.mathcore.test.mathcore_testFit
• projectroot.math.mathcore.test.gtest_math_mathcore_test_GradientFittingUnit
• projectroot.math.mathcore.test.gtest_math_mathcore_test_GradientUnit

And 5 more