Page History

...

• experiment name (which may optionally contain the name of an instrument)

  Code Block
  language none
  exp=CXI/cxi12313 exp=cxi12313

• run number specification (can be a single run, a range of runs, a series of runs, or a combination of all above)

  Code Block
  language none
  run=1 run=10-20 run=1,2,3,4 run=1,20-20,31,41

• file type, if not specified then 'xtc' is the default

  Code Block
  language none
  xtc h5

• Location of the files, if not specified then files will be searched in a standard location (/reg/d/psdm/...). If this parameter is specified it needs to be full path name of the directory where files are located

  Code Block
  language none
  dir=/reg/d/ffb/cxi/cxi12345/xtc

• Input number stream number for XTC files, if value is omitted then one pseudo-random stream is selected (this is useful to balance the load on FFB storage system for example):

  Code Block
  language none
  one-stream=1 one-stream

• allow reading from live XTC files while they're still being recorded (by the DAQ or by the Data Migration service). Note that this feature is only available when running psana at PCDS, in all other cases the option will be ignored:

  Code Block
  language none
  live

   

   

Few examples of dataset specification:

...