Key4hep Discussion

Tuesday 28 Jan 2025, 13:00 → 14:00 Europe/Zurich

32/S-C22 (CERN)

Live Notes

CERN Key4hep Discussion
===

Attendees: Andre, Leonhard, Juan, Mateusz, Swathi

Apologies:

Date: January 28, 2024

## News

* Summer student project deadline: January 26, 2025
    * SFT deadline January 20
    * Thanks!

## Round The Table

### Leonhard

* Understood problem about the conversion of optimal observables.
    * Missing transposing of a matrix
    * Closure check now is in agreement.
    * Couplings still cannot be extracted, same as for LEP
* Check with ILD full sim data
    * One of the correlations has the wrong sign
    * Detector resolution has almost no effect, almost no difference between truth and fullsim result
    * added to ECFA report update
* Cleanup all the code now

### Andre

* EDM4hep Reader for DD4hep merged
* New DD4hep tag

### Mateusz

* podio
    * collection::iterators are now actual iterators
    * collections, synchronise the collection APIs with same typedefs, iterators, etc.
    * relationRanges are now `std::`views
* Documentation
    * Script to pull other repos now uses --force to actually update
    * EDM4hep has updated doxygen
        * with dark mode!
* Added globbing for podioReader
* There are too many different readers in c++ and python and they are all different
* Attended MPI workshop
    * Mostly about MPI + OpenMP

### Juan

* Presentation at US FCC planning workshop in December 19, 2024
    * Senior people, pedagogical presentation
* New key4hep-spack build for nightlies.
    * setup scripts need updating
* Cannot concretise key4hep-spack environments against latest spack tag
    * Geant4 datafile related version not upstreamed, and other things
    * Needs another environment without Geant4 stuff
* LCGCmake key4hep stack
    * Cannot build on top of the stack because of gold linker
        * ilcpackages installing cmake files in the wrong place
    * clang-format in gcc14
* Using MarlinWrapper with IOSvc
* Debugging some user issues
    * Please ask them to open issues

### Swathi

* Convert Lar geometry information code into a plugin that can be run on-demand
* Converting last DDMarlinPandora algorithms into DDGaudiPandora
* Final presentation on February 24th
* ICHEP proceedings for Key4hep accepted and online

## AOB

* CHEP proceedings deadline: January 31st.
    * Extended to February 28th

## Next Meeting

February 4, 2024

## TODO

 

13:00 → 13:55 Round The Table

Speakers: Andre Sailer (CERN), Juan Miguel Carceller (CERN), Leonhard Reichenbach (University of Bonn (DE)), Mateusz Jakub Fila (CERN), Swathi Sasikumar (CERN)