Add project for AD in Combine + Roofit#189
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davidlange6 merged 4 commits intoresearch-software-collaborations:mainfrom Apr 10, 2026
Merged
Add project for AD in Combine + Roofit#189davidlange6 merged 4 commits intoresearch-software-collaborations:mainfrom
davidlange6 merged 4 commits intoresearch-software-collaborations:mainfrom
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davidlange6
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Apr 10, 2026
projects/ad_combine_roofit.yml
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| description: | | ||
| Statistical inference in High Energy Physics relies on minimizing complex likelihood functions with thousands of parameters. In this regime, numerical gradient computation becomes the dominant cost of the minimization. Automatic differentiation (AD) addresses this problem by producing analytic gradients whose evaluation cost is essentially independent of the parameter count. | ||
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| RooFit has recently introduced an AD engine based on Clad, an AD tool based on source-code transformation that is implemented as a Clag comiler plugin. The RooFit AD engine is realized by a code generation (codegen) pipeline, which translates RooFit models to simple C++ likelihood code that Clad can process. Benchmarks on ATLAS and CMS models have already shown substantial reductions in minimization time with the Minuit 2 minimizer when using these analytic gradients. |
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to make the precommit happy, should comiler be compiler?
davidlange6
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