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Monitoring infrastructure, line monitoring

Daniel Hugo Campora Perez requested to merge sel_report_monitoring into master

This MR introduces monitoring in Allen. It does the following:

  • Algorithms can now perform monitoring. Monitoring works by definition only in non-standalone, hence all monitoring code should be wrapped in appropriate macros.
  • Add a MonitoringAggregator, which only runs in non-standalone. It aggregates the statistics coming from several streams.
  • Add a MonitoringPrinter, which only runs in non-standalone. It prints the status of the monitoring.
  • Algorithms (non-standalone) provide now a ServiceLocator, which is used to be able to define Gaudi::Accumulators and Histograms.
  • A minimal monitoring containing the output of the lines, and the output of the postscaler results, has been added.
  • In order to speed up calculation of the monitoring values, the quantities are precalculated on the GPU in Allen::buffers beforehand.

It requires a sink to be added in MooreOnline to publish, so should be merged with MooreOnline!121 (merged).

Edited by Kate Abigail Richardson

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