This milestone is for keeping track of plans and developments discussed in the restarted biweekly AvailSim4 meetings.

• Ongoing activities: finalize and test existing merge requests o Availsim4 on CVMFS o Random Seed Handling  now they are random by default o Input sheets are made robust against missing inputs (to account for all the features that a beginner does not need to use)
• Improve HTCondor situation o Simplify experience when running on HTCondor [Milosz, Jack, Lukas, Cedric & Daniel – couple of days]  Get Openstack VM with GUI working on AFS (to avoid syncing back and forth between eos and afs) – done • Explore (Lukas makes issue) o Htcondor  works as expected now o Local execution o VScode or FastX  we are happy with VScode, we did not try FastX yet  FastX may allow running online Excel (allowing great extension) - mp-linux-ts-availability-01.cern.ch:3300  Limitation of VScode is filtering results Excel files  Need to check whether modified Excel files may cause hiccups with AS4  Be part of https://mp-computing.docs.cern.ch/projects/ and follow workflow there – • Mostly links to existing stuff (Lukas makes issue) • Availsim4 intro o How to run on • Working on cluster intro  Should we configure the virtual machine to run out of the box/terminal  Have a meeting with Cedric to discuss possibilities - done  Check use-cases for DagMan and possible benefits (or alternatives for handling sequences of jobs on the cluser) – • DagMan might help re-running job that did not finish? Maybe not • Maybe there is something else – • Can just check if results is missing in output and where missing resubmit submission files o Reduced output file sizes [Milosz, Lukas; in case it impacts availsim4core, proposal should be checked with SW team within a ~ month]  Wait for merge requests and CVMFS (try to have files pushed there each release) done (Milosz makes issue)  Option A: allow deactivating any sheet in results.xlsx  Option B: use root-cause-analysis to select which events should be tracked  Option C: allow to inject filtering class/function at the level of pandas dataframes that availsim4 generates before it gets exported to xlsx.  Option D: have a script as part of the htcondor submission that postprocesses what availsim4 outputs to reduce the file size
• Getting started with availasim4 document [Jack mainly, Lukas helps] o First keep exploring o Will try to have it in January for newcomer (Jack makes issue)
• Jack will think of a script for simplifying the FCC-ee use case submission and post-processing (Jack makes issue) o Done but may need to be simplified in view of new openstack machine o May provide re-running of jobs o Done and available https://gitlab.cern.ch/availsim4/fcc-ee-sensitivity-availability-study/-/tree/streamlined2?ref_type=heads
• Simpler/faster input files o Have possibility to substitute simulation.xlsx by dictionary o (if needed) Allow “for loop” based sensitivity analysis without storing and loading files
• The great extension (Milosz makes issue) o Currently needs to be locally installed o Check how to “ship” with AS4 in future
• Open issues for each of them in gitlab – Milosz sorts how to assign to “AvailSim4 review” category