Page History
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- Psana now merges a datagram from a IOC control stream that is under DAQ control (these are xtc files whose stream number is 80 or above) with a datagram from a DAQ stream when the fiducials are an exact match, and the clock times are close.
- Likewise the HDF5 Translation labels data from the IOC control streams (such as xtcav data) with the DAQ timestamps. Users will not need to do their own fiducial matching to group data.
- IOC control stream datagrams that do not match DAQ datagrams are still presented to the user in their own event.
- Psana now uses a fuzzy clock and fiducial based comparison algorithm to accomplish this. Psana no longer orders datagrams based on the clock time.
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