Phase space tuning

[kilian]

W2 produces more channels than W1, which may be good or bad. Implement a switch and run tests to decide the default behavior.

Look for other places to improve (or repair) phase-space setup.

[Juergen Reuter]

For e+ e- -> b bbar u ubar s sbar the phase space generation is taking more than 45 min, at least, or does not even stop an a standard laptop.

[Juergen Reuter]

This is a no-go, sry.

[Juergen Reuter]

I have to check whether WHIZARD is doind anything at all...

[Juergen Reuter]

WHIZARD stays for ages in cascade_set_generate.

[kilian]

I agree that the mentioned problem must be solved, but this is #171. Exchanging the two.

[kilian]

If everything works, nothing to be done here. Just be aware that unexpected failures for processes require some work here.

[Juergen Reuter]

Thorsten and his diploma student reported a problem with the phase space, regarding a discrepancy when switching on cuts. The discrepancy between W1 and W2 amounts to per cent errors between 5 and 10. Please, the Wurzburg people, provide us with the details (and if possible with a solution muharhar).

[Juergen Reuter]

Here, we are still waiting for the people from Wuerzburg to confirm any differences they claimed to have found between W1 and W2.

*

What also belongs here is to include benchmarking between W1 and W2 which CS promised to do.

[kilian]

Currently, the groves are too large, they do not distinguish flavor in (massive) s-channel resonances. Should separate them, although it might not be that important.

[kilian]

The previous point is addressed in r2508.

[Juergen Reuter]

Another point we are still awaiting is the performance comparison with WHIZARD 1 (to be done by CS) as well as a general profiling. If there are no further points, I would suggest to close this ticket and open special issue tickets if there are dedicated problems.

[ohl]

see #329, #358

[Juergen Reuter]

Milestone renamed