|Message: Re: Question about saving Random Number Status||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
Hi Emanuele, > Another question: I would like to run several copies of the same program > in parallel. In order to have independent results, I want to initialize > the random engine of each copy with a different (independent) seed. the control of the -initial- seed of each run is something that you have to take care yourself inside your program, by using direct calls to the CLHEP library, according to the random engine you have selected (you can also define a command that does this, such that you can control it at run time). See also posting #118 in this Forum: http://geant4-hn.slac.stanford.edu:5090/HyperNews/public/get/runmanage/118/1.html > I gave a look into a currentEvent.rndm file and it has a format like > > Uvec > 1878463799 > 0 > 1487912126 > 868880632 > > What is the meaning of the four numbers and how should I generate them > in order to obtain independent seeds? The numbers stored are the status of the random engine at that moment. The format varies from engine to engine. Not all engines have their internal status corresponding to the actual seed, RanecuEngine has this feature, the majority however do not. To define independent initial seeds you should use the facilities in CLHEP as mentioned above. Cheers, Gabriele
|Inline Depth:||Outline Depth:||Add message:|