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The implementation of the art physics event processing framework
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randomOffset for SamplingInput #145

Open gaponenko opened 4 months ago

gaponenko commented 4 months ago

Hello,

I just became aware of the existence of SamplingInput_source. It samples events at random but starts at the first event of a file unless the skipToEvent parameter is used. That parameter is not practical to set for grid jobs. So the start of each file is likely to be over-sampled compared to the end. Very similar to issue #109. Ideally one wants to sample events from each dataset uniformly.

Andrei

brownd1978 commented 4 months ago

Random access isn't required for current Mu2e use cases of this source. An interface to allow a 'random' starting point as Andrei specifies would be useful.