Individual events

[Ben Allanach]

It would be useful for DELPHES to process a stream of standard input/output events. Many programs can do this, and it allows several desirable possibilities:
. One can stop when one has sufficient stats (which one doesn't always know in advance)
. One can check the output in real time in order to quickly detect bugs etc

[Sourav Mandal]

And also perhaps avoid writing large temporary files, if hadron-level events can be piped directly into Delphes? Delphes.cpp is already using stream operators to read the input file sequentially; that could just read from stdin.

[favereau]

There is heavy devlopement in delphes at the moment, partly targeting this issue. Stay tuned in the coming weeks.

[Pavel Demin]

Delphes 3 can read standard input.

I could not find how to write ROOT files to standard output.