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PR adds premixing for phase2 D17 geometry detectors as described in these O&C week slides\r\nhttps://indico.cern.ch/event/711343/#54-phase-2-premixing-status\r\n\r\nAs a summary the changes include\r\n* Customization of ECAL, HCAL, DT, CSC, RPC premixing for phase2\r\n* `PreMixingPhase2TrackerWorker` for phase2 tracker premixing\r\n   * Both inner and outer tracker are treated like pixel is treated in phase0/1 premixing\r\n   * In the standard digitizer changed the `makeDigiSimLinks` to be a single parameter to control the behaviour of all sub-digitizers instead of sub-digitizer specific parameters\r\n* `PreMixingHGCalWorker` for HGCal premixing\r\n   * The state of the digi accumulator is stored\r\n* `PreMixingCaloParticleWorker` for CaloParticles and SimClusters\r\n   * Similar to `PreMixingTrackingParticleWorker`\r\n   * SimClusters need an additional \"DetId->total sim enery\" map to calculate the fractions\r\n* `PreMixingGEMWorker` and `PreMixingME0Worker` for GEM and ME0\r\n   * Mixing the digis as with other muon detectors\r\n   * May change in the future (to SimHits, see next point)\r\n* `PreMixingCrossingFramePSimHitWorker` to mix `PCrossingFrame<PSimHit>` (from pileup) and `CrossingFrame<PSimHit>` (from signal)\r\n   * to mix SimHits for ME0 pseudo digis (used for L1)\r\n* Disable L1 from premixing stage1 (not needed)\r\n* Some cleanup in `MixingWorker`, `CrossingFrame<T>`, and `PCrossingFrame<T>`\r\n* Combined stage1+stage2 workflow, which is now also enabled in standard matrix\r\n  * For this the existing stage1 and stage2 workflow numbers were decreased (.98->.97, 0.99->0.98)\r\n\r\nThere is still work to do (I'd be surprised if there were no bugs), but I believe integrating the first complete version has value (getting it reviewed, tested etc).\r\n\r\nTested in CMSSW_10_2_X_2018-04-23-2300, no changes expected in existing workflows.\r\n\r\n@kpedro88 @mdhildreth "},"comment":{"url":"https://api.github.com/repos/cms-sw/cmssw/issues/comments/385767204","html_url":"https://github.com/cms-sw/cmssw/pull/23065#issuecomment-385767204","issue_url":"https://api.github.com/repos/cms-sw/cmssw/issues/23065","id":385767204,"user":{"login":"makortel","id":33993,"avatar_url":"https://avatars3.githubusercontent.com/u/33993?v=4","gravatar_id":"","url":"https://api.github.com/users/makortel","html_url":"https://github.com/makortel","followers_url":"https://api.github.com/users/makortel/followers","following_url":"https://api.github.com/users/makortel/following{/other_user}","gists_url":"https://api.github.com/users/makortel/gists{/gist_id}","starred_url":"https://api.github.com/users/makortel/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/makortel/subscriptions","organizations_url":"https://api.github.com/users/makortel/orgs","repos_url":"https://api.github.com/users/makortel/repos","events_url":"https://api.github.com/users/makortel/events{/privacy}","received_events_url":"https://api.github.com/users/makortel/received_events","type":"User","site_admin":false},"created_at":"2018-05-01T19:37:38Z","updated_at":"2018-05-01T19:37:38Z","author_association":"CONTRIBUTOR","body":"@cmsbuild, please test workflow 250202.18,250200.1,250402.0,20234.99"}}
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