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# Key4hep Live Notes

This is a document for taking notes during Key4hep meetings.

Date: June 30, 2020

Agenda: https://indico.cern.ch/event/932698/

Connected: Tao, Xiaomei, Andre, Benedikt, Clement, Dominik, Thomas, Marko, Gerri, Valentin, Paolo, Gloria, Frank, Biagio, Sang Hyun, Joseph

Apologies: Weidong


## Presentation on Gaussino

 

 

## Communities Round Table


## Podio

## EDM4hep Output for Delphes

* https://github.com/key4hep/EDM4hep/pull/56
    * Ready for review

## Build system / Target compiler / dependencies

* Full Spack installation now available under /cvmfs/sw.hsf.org
* including Marlin, MarlinGaudiWrapper, FCCSW
* [ ] update documentation

### CMake Template

## EDM4hep

* In order to use the weights, the master version is now deployed for CEPCSW. A new release of EDM4hep is required.
    * Wait for small PRs (dd4hep output module)
    * Fix the linking (rootmap) problem

## K4FWCore

* ~~CEPCSW: after link the dict, the output could be read by ROOT directly. However, when reading the output using `K4DataSvc`, `ERROR std::bad_alloc` is reported from `PodioReader`.~~
    * ~~Now, the simulation and Pandora algorithm are configured in the same job.~~
    * This issue is fixed after the rootmap patch.

## MarlinWrapper

* Tagged and spack recipe
 
## Delphes "Algorithm" to run from Gaudi


## ACTS Integration with Key4hep


## Distributed Computing, Workload Management, Data Management

## Gaudi


## Geometry packages

## First release

* Content:
    * EDM4hep
    * K4FWCore: dataservice, +++
    * Marlin Wrapper
    * DD4hep plugin for EDM4hep output
    * Example
        * TODO: Simulate a few muons and reconstruct with MarlinWrapper
* How to tag releases
    * using release script from iLCSoft for individual packages

## AOB

* Proposal: discuss simulation programs
    * Gaussino
    * Gaudi integrations
    * ddsim


## Next meeting

* Meeting this week for podio discussion
    * Doodle to come
* July 14, 2020

 

## Call for Logos

 

There are minutes attached to this event. Show them.
    • 09:00 → 09:05
      Introduction 5m
    • 09:05 → 09:25
      Gaussino 20m
      Speaker: Dominik Muller (CERN)
      CHEP2019
    • 09:50 → 10:00
      Discussion 10m
      Speakers: Everyone, Valentin Volkl (University of Innsbruck (AT))
      Call for Logos