EventWorkspace: iterator to go through all events (?)

[mantid-builder]

Original Reporter: @jzikovsky

Original Owner: @jzikovsky

Will allow operations (weights, etc.) to be applied to all events in a single loop.

A forward iterator would be the quickest ( O(1) to go forward ). But it is not possible to parallelize a forward iterator with OpenMP.

If made a random-access iterator, then you could do a OpenMP for loop; but unfortunately each access will have complexity ( O(log M) ) where M is the number of spectra.

Therefore, a mix of both methods might be necessary - split into X ForwardIterators that operate in parallel, where X is the number of available cores?

[mantid-builder]

This issue was originally trac ticket 2184