O'Mega writes to stderr

[sschmidt]

When processing the output WHIZARD prints to the screen e.g.

../bin/whizard test.sin | tee test.out

the output from O'Mega, e.g.

[1/6] e- e+ -> u/1/ ubar//3 b/2/ bbar//2 d/3/ dbar//1 ... allowed. [time: 26.82 secs, total: 2:41 mins, remaining: 2:14 mins]
[2/6] e- e+ -> u/1/ ubar//2 b/2/ bbar//3 d/3/ dbar//1 ... allowed. [time: 25.81 secs, total: 2:38 mins, remaining: 1:45 mins]
[3/6] e- e+ -> u/1/ ubar//2 b/2/ bbar//1 d/3/ dbar//3 ... allowed. [time: 26.56 secs, total: 2:38 mins, remaining: 1:19 mins]
[4/6] e- e+ -> u/1/ ubar//3 b/2/ bbar//1 d/3/ dbar//2 ... allowed. [time: 26.56 secs, total: 2:39 mins, remaining: 52.87 secs]
[5/6] e- e+ -> u/1/ ubar//1 b/2/ bbar//3 d/3/ dbar//2 ... allowed. [time: 26.59 secs, total: 2:39 mins, remaining: 26.47 secs]
[6/6] e- e+ -> u/1/ ubar//1 b/2/ bbar//2 d/3/ dbar//3 ... allowed. [time: 26.92 secs, total: 2:39 mins, remaining: 0.00 secs]
all processes done. [total time: 2:39 mins]
SUMMARY: 175 fusions, 38 propagators, 537 diagrams
SUMMARY: 79 fusions, 23 propagators, 88 diagrams
SUMMARY: 110 fusions, 29 propagators, 202 diagrams
SUMMARY: 79 fusions, 23 propagators, 88 diagrams
SUMMARY: 110 fusions, 29 propagators, 202 diagrams
SUMMARY: 244 fusions, 48 propagators, 1139 diagrams

is missing in the output file. I hope it shouldn't be too hard to fix this...

[ohl]

Traditionally, O'Mega has written the amplitude to stdout and other messages (including the progress reports) to stderr. The latter could also go to the terminal, but I was worried about portability.

I'm not sure, whether I should/would change this behaviour.

[sschmidt]

Okay, redirecting stderr

../bin/whizard test.sin 2>&1 | tee test.out

works, but it should be mentioned somewhere. What is confusing is that if you have a sin file that was already executed and you execute it again using the "| tee test.out" command (with or without the "2>&1"), the screen and the file will stay empty for some time (~1min) in contrast to the behaviour without "| tee ...". This was really confusing for me.

[ohl]

Appears to be a misunderstanding.

[Juergen Reuter]

Milestone v2.0.0final deleted