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Re: random number generator for DPMgen [message #6388 is a reply to message #6385]

Fri, 11 April 2008 19:44

Mohammad Al-Turany
Messages: 518
Registered: April 2004
Location: GSI, Germany

first-grade participant

From: *dip.t-dialin.net

Hallo Johan,

Quote:

Will the instruction
gRandom->SetSeed(<my favorite seednumber>);
in the macro do the job for me?

Not really, because dpm do not know anything about root and gRandom.

in the PndDpmDirect, the seed is set using:

 Long_t Time = time(NULL);
int a = Time/100000;
seed = Time - a*100000 + a/100000.;

which is the same as it was in the executable, except that it is changed for each event, so each call to the next event will set the seed again. It is simple but I think it is enough, with the executable you set the seed once for all events and here you change it for each event! Any way if you think this is not enough we can change it and take the seed for example from gRandom, this should be straight forward!

regards

Mohammad

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[Message index]

		Upcoming DC By: Johan Messchendorp on Wed, 02 April 2008 22:01
		Re: Upcoming DC By: Kilian Schwarz on Thu, 03 April 2008 08:50
		Re: Data Challenge By: Dan Protopopescu on Thu, 03 April 2008 12:34
		Re: Data Challenge By: Kilian Schwarz on Thu, 03 April 2008 12:46
		Re: Data Challenge By: Dan Protopopescu on Thu, 03 April 2008 13:49
		Re: Data Challenge By: Kilian Schwarz on Thu, 03 April 2008 15:43
		Re: Data Challenge By: Johan Messchendorp on Fri, 04 April 2008 16:55
		Re: Data Challenge By: Kilian Schwarz on Sat, 05 April 2008 09:08
		Re: Upcoming DC By: Dan Protopopescu on Fri, 04 April 2008 13:49
		Re: Upcoming DC By: Paul Buehler on Fri, 04 April 2008 14:51
		Re: Upcoming DC By: Johan Messchendorp on Fri, 04 April 2008 15:02
		Re: Upcoming DC By: Dan Protopopescu on Fri, 04 April 2008 15:49
		Re: Upcoming DC By: Johan Messchendorp on Fri, 04 April 2008 16:31
		Re: Upcoming DC By: Dan Protopopescu on Fri, 04 April 2008 16:40
		Re: Upcoming DC By: Johan Messchendorp on Fri, 04 April 2008 16:51
		Re: Upcoming DC By: Kilian Schwarz on Sat, 05 April 2008 09:10
		Re: Upcoming DC By: Dan Protopopescu on Fri, 04 April 2008 17:21
		Re: Upcoming DC By: Johan Messchendorp on Fri, 04 April 2008 17:43
		Re: Upcoming DC By: Dan Protopopescu on Fri, 04 April 2008 19:36
		Re: Upcoming DC By: Kilian Schwarz on Sat, 05 April 2008 08:11
		Re: Upcoming DC By: Jens Sören Lange on Sun, 06 April 2008 15:28
		Re: Upcoming DC By: Dan Protopopescu on Mon, 07 April 2008 12:20
		Re: Upcoming DC By: Johan Messchendorp on Mon, 07 April 2008 14:33
		Re: Upcoming DC By: asanchez on Mon, 07 April 2008 15:00
		Re: Upcoming DC By: Johan Messchendorp on Mon, 07 April 2008 15:38
		Re: Upcoming DC By: asanchez on Mon, 07 April 2008 15:44
		Re: Upcoming DC By: asanchez on Mon, 07 April 2008 15:49
		Re: Upcoming DC By: Johan Messchendorp on Mon, 07 April 2008 15:59
		Re: Upcoming DC By: Jens Sören Lange on Mon, 07 April 2008 16:58
		Re: Upcoming DC By: Dan Protopopescu on Mon, 07 April 2008 17:08
		Re: Upcoming DC By: Jens Sören Lange on Mon, 07 April 2008 18:35
		Re: Upcoming DC By: Johan Messchendorp on Mon, 07 April 2008 18:49
		Re: Upcoming DC By: Johan Messchendorp on Mon, 07 April 2008 22:53
		Re: Upcoming DC By: Dan Protopopescu on Tue, 08 April 2008 17:56
		Re: Upcoming DC By: Johan Messchendorp on Wed, 09 April 2008 00:06
		Re: Upcoming DC By: Kilian Schwarz on Wed, 09 April 2008 06:52
		Re: Upcoming DC By: Jens Sören Lange on Wed, 09 April 2008 16:07
		Re: Upcoming DC By: Dan Protopopescu on Wed, 09 April 2008 16:21
		Re: Upcoming DC By: Jens Sören Lange on Wed, 09 April 2008 16:45
		Pledged resources on our DC01 wiki By: Dan Protopopescu on Thu, 10 April 2008 15:02
		Re: Upcoming DC By: Kilian Schwarz on Tue, 08 April 2008 16:42
		Re: Upcoming DC By: Dan Protopopescu on Tue, 08 April 2008 17:57
		Test Jobs By: Dan Protopopescu on Wed, 09 April 2008 17:06
		UrQMD_Smm By: Johan Messchendorp on Wed, 09 April 2008 22:01
		one more week left By: Paul Buehler on Thu, 10 April 2008 16:11
		installation of relevant packages By: Johan Messchendorp on Thu, 10 April 2008 17:03
		Re: one more week left By: Jens Sören Lange on Thu, 10 April 2008 18:32
		Re: one more week left By: Paul Buehler on Fri, 11 April 2008 09:50
		if you can wait, please wait a few hours ... By: Jens Sören Lange on Fri, 11 April 2008 12:05
		Re: if you can wait, please wait a few hours ... By: Florian Uhlig on Fri, 11 April 2008 14:12
		final PandaRoot for DC By: Jens Sören Lange on Fri, 11 April 2008 15:50
		random number generator for DPMgen By: Johan Messchendorp on Fri, 11 April 2008 17:06
		Re: random number generator for DPMgen By: Mohammad Al-Turany on Fri, 11 April 2008 19:44
		Re: random number generator for DPMgen By: Johan Messchendorp on Fri, 11 April 2008 22:20
		Re: random number generator for DPMgen By: Mohammad Al-Turany on Sat, 12 April 2008 19:46
		Re: random number generator for DPMgen By: Johan Messchendorp on Sat, 12 April 2008 19:58
		Informative Titles By: Dan Protopopescu on Wed, 09 April 2008 17:09
		tpc and stt DC macros are in svn By: Jens Sören Lange on Wed, 09 April 2008 17:16
		Storage@KVI By: Johan Messchendorp on Wed, 09 April 2008 22:13
		Re: Upcoming DC - PandaRoot rev2480 By: Dan Protopopescu on Fri, 11 April 2008 19:01
		Re: Upcoming DC - Testjobs to be specified and documented By: Kilian Schwarz on Tue, 15 April 2008 10:41
		Re: Upcoming DC - Testjobs to be specified and documented By: Paul Buehler on Tue, 15 April 2008 10:45
		Re: Upcoming DC - Testjobs to be specified and documented By: Paul Buehler on Tue, 15 April 2008 11:23
		Run list for DC1 open for discussion By: Paul Buehler on Wed, 16 April 2008 16:51
		Re: Run list and transfer bandwidth By: Kilian Schwarz on Wed, 16 April 2008 16:55
		Re: Run list and transfer bandwidth By: Dan Protopopescu on Wed, 16 April 2008 16:59
		Re: Run list and transfer bandwidth By: Kilian Schwarz on Wed, 16 April 2008 17:16
		Start of DC By: Paul Buehler on Wed, 16 April 2008 17:18
		Re: Start of DC - missing executables By: Kilian Schwarz on Thu, 17 April 2008 06:40
		Re: Start of DC - missing executables By: Paul Buehler on Thu, 17 April 2008 07:40
		Re: Start of DC - missing executables By: Kilian Schwarz on Thu, 17 April 2008 07:48
		new SE at GSI By: Kilian Schwarz on Thu, 17 April 2008 07:49
		Re: Start of DC - missing executables By: Paul Buehler on Thu, 17 April 2008 08:11
		Re: Start of DC - missing executables By: Kilian Schwarz on Thu, 17 April 2008 08:19
		DC1 finished By: Paul Buehler on Mon, 21 April 2008 08:27
		Re: DC1 finished By: Kilian Schwarz on Mon, 21 April 2008 13:23
		Re: DC1 finished By: Dan Protopopescu on Mon, 21 April 2008 13:33
		DC1 Summary By: Dan Protopopescu on Mon, 21 April 2008 16:21
		Re: DC1 Summary By: Kilian Schwarz on Tue, 22 April 2008 08:09

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