RE: [ROOT] Pythia6 business.

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Jul 22 2003 - 23:54:02 MEST


Hi Valeri,

Dec Fortran is apparently not supported anymore under XP/.NET.
I am using the Fortran compiler bundled with the standard CERN
XP/Professionnal distribution:

(pcbrun2) [134] fl32
Microsoft (R) Fortran PowerStation  Version 4.00
Copyright (C) Microsoft Corp 1982-1995. All rights reserved.

Rene Brun

On Tue, 22 
Jul 2003, Valeri Fine wrote:

> Hello Rene
> Can you say which compiler you are using at present?
> You mentioned MS Fortran compiler. That was dropped by MS about 5 years
> ago
> in favor of the Digital Fortran compiler (later known as Compaq Fortran
> Compiler. 
> 
> Are you sure 
> ftp://root.tar.gz/root/pythia62win.tar.gz is a valid address
> 
> 
> It is a typo. It should be:
> 
> ftp://root.cern.ch/root/pythia62win.tar.gz 
> Valeri
> 
> 
> > -----Original Message-----
> > From: owner-roottalk@pcroot.cern.ch
> [mailto:owner-roottalk@pcroot.cern.ch]
> > On Behalf Of Rene Brun
> > Sent: Tuesday, July 22, 2003 5:27 PM
> > To: Nick van Eijndhoven
> > Cc: Rene Brun; ROOT discussion group
> > Subject: Re: [ROOT] Pythia6 business.
> > 
> > Hi Nick,
> > 
> > Concerning Pythia6 on windows: if you or a Windows guru
> > have time to investigate why pythia62 does not compile
> > under Xp with the .NET environment, you can take
> >   ftp://root.tar.gz/root/pythia62win.tar.gz
> > and try to build the dll/lib using setpythia.bat.
> > This used to work under Windows/NT with the previous MS
> > Fortran compiler.
> > If somebody send me the necessary changes to make this dll,
> > I will be happy to include it in the next release.
> > 
> > Rene Brun
> > 
> > On Tue, 22 Jul
> > 2003, Nick van Eijndhoven wrote:
> > 
> > > Hi Rene,
> > > I get your point, but I don't think it's pure accident that
> > > my stuff works under win98.
> > > The windows release of ROOT 3.05/06 doesn't have any TPythia6
> > > stuff in; what I did was that I saved all the TPythia6 stuff
> > > (i.e. all .lib, .dll and corresponding header files like e.g.
> > > TPythia6Calls.h, TMCParticle.h etc...) from a previous version
> > > 3.04. So as far as I can see, the TPythia6 stuff I have is
> intrinsically
> > > consistent. This might be the reason that it works correctly.
> > >
> > > Of course it would be better if the CERNLIB guys brushed up their
> > > code such that it compiles also with VC++7.NET so you can again
> > > include the pythia stuff in the ROOT binary release as you did
> > > upto now for windows.
> > >
> > > Really, this "built-in pythia generator" in ROOT is a very versatile
> > > tool; not only for physics investigations, but also to quickly
> > > test and optimise event data structures for large events (like
> > > LHC Pb+Pb collisions or cosmic ray interations).
> > >
> > >                                                  Cheers,
> > >                                                   Nick.
> > >
> > > Rene Brun wrote:
> > > > Hi Nick,
> > > >
> > > > The Pythia libs distributed with ROOT 3.05 CANNOT WORK with Pythia
> > 6.1.
> > > > You must use Pythia 6.2. In Pythia 6.2 the length of /PyDat3/ has
> been
> > > > changed from 4000 to 8000 particles. ROOT 3.05 is consistent with
> > > > this dimension. See $ROOTSYS/pythia6/inc/TPythia6Calls.h
> > > >
> > > > The fact that it works with you under Windows98 is purely an
> accident,
> > > > because Windows prevent communication between common blocks
> defined
> > > > in separate DLLs. Your program may work if you do not use the
> elements
> > > > in PyDat3, but even in this case, I would not trust the results.
> > > >
> > > > Rene Brun
> > > >
> > > > Nick van Eijndhoven wrote:
> > > >
> > > >>Dear all,
> > > >>Some days ago I saw a mail from somebody who had problems in
> setting
> > > >>pi0's stable in the TPythia6 generator using one of the recent
> ROOT
> > > >>releases.
> > > >>If I remember well, there was an answer that one can't use
> Pythia6.1
> > > >>anymore with Root 3.05.
> > > >>Obviously I got a bit nervous about such messages, so I took the
> > latest
> > > >>Root 3.05/06 binaries (gdk version for windows) from the web and
> run
> > > >>some test on my win98 machine.
> > > >>Attached you will find the little script aap.cc and the produced
> > output
> > > >>aap.log, which shows that everything runs correctly.
> > > >>I think the particle code argument to SetMDCY() was wrong in email
> > > >>mentioning the problem. It should not be 111, but the 'pythia
> > equivalent
> > > >>code'.
> > > >>The only thing one should do (at least for the windows version) is
> > taking
> > > >>the TPythia related header files and libs and include them at the
> > > >>corresponding locations in your root directory, since they are not
> > part
> > > >>(for the time being) of the binary Root release.
> > > >>However, the ones of the Root 3.04 release work pretty fine.
> > > >>In case you want all the TPythia stuff 'ready to copy' into the
> root
> > > >>directory, you can pickup the TPythia.zip file of my homepage-
> > >Download.
> > > >>
> > > >>                                                       Cheers,
> > > >>                                                        Nick.
> > > >>
> > > >>--
> > > >>Dr. Nick van Eijndhoven mailto:nick@phys.uu.nl
> > http://www.phys.uu.nl/~nick
> > >
> >>----------------------------------------------------------------------
> > ----
> > > >>Org.:    Utrecht University, Faculty of Physics and Astronomy
> > > >>Address: Princetonplein 5, NL-3584 CC Utrecht, The Netherlands
> > > >>Phone:   +31-30-2532331(direct) +31-30-2531492(secr.)  Fax:
> +31-30-
> > 2518689
> > > >>CERN:    +41-22-7679751(direct) +41-22-7675857(secr.)  Fax:
> +41-22-
> > 7679480
> > > >>Offices: Buys Ballot laboratory Room 710 (Utrecht)   B23 1-020
> (CERN)
> > >
> >>----------------------------------------------------------------------
> > ----
> > >
> 



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