[Clas_offline] basics CLAS6 setups

[Maurik Holtrop]

Hello Nikolai,

For documentation, the by now very old GSIM pages do still exist at https://urldefense.proofpoint.com/v2/url?u=http-3A__nuclear.unh.edu_-7Emaurik_gsim-5Finfo.shtml&d=DwIFaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=JZv5iMEnDJ2QmivBR85Xpq7MFx_nBqny4wIuPLRBbRI&m=p4UAYhsG8eyoiWgD_pCPcn02Pj7cd6k-ctJKlcCTI_w&s=G0Edc849n6PYs-BHRFHDyBOOhdElM6dOVpfaFTVhQb0&e= 
Note that some external links, especially relating to GEANT3 documentation, are expired and you will need to google if there are new ones available.

Sorry, I don’t have a bash setup that will work and has everything setup for you. I don’t know if someone else can help you there.

One of the big issues with running GEANT3 code in 64-bit machines has been that GEANT3 inherently is not a 64-bit code. The code did a lot of things that are very bad hacks (storing C pointers in Fortran variables) that made it difficult to work on anything other than 32-bit CPUs. Some of these were fixed, but there is no guarantee that all of them have. I haven’t run GSIM myself for quite a long time, so I don’t know about the current state of running it on 64-bit machines. You can try running it in a 32-bit VM and see if that works better.

Best regards,

	Maurik




> On May 22, 2017, at 8:36 AM, Nikolai Pivnyuk <pivnyuk at jlab.org> wrote:
> 
> Dear Jerry, dear clas_offline_ers,
> 
> I have lost a lot of time trying to fight problems which are obviously
> beyond my level of expertise. I'm speaking about my program crash
> while trying to run gsim_bat command.
> 
> 1. Is anywhere available CLAS6 STANDARD (conventional, normal)
> .bashrc file for the CLAS6 "beginner" ? I mean .bashrc file which gives
> feasibility to run smoothly STANDARD CLAS6 PACKAGES gsim, gpp, recsis.
> I would strongly like to copy such a file in my home directory and use it
> at the login level.
> 
> 2. Where I can see any manuals, which give information about gsim, gpp,
> recsis parameters clear enough, to start running these packages ? What are
> links to such manuals if any ?
> 
> Thanks,
> Nikolai
> 
> 
> 
> 
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