mesa-users] problem with running MESA

Marcin @ astrophysics astrophysics at
Thu Sep 10 10:34:53 EDT 2009

Hi Miroslav,

I haven't seen such an error message before. Maybe someone else could 
help you with it.

However your Fedora 8 seems to be slightly old OS.
I use Fedora 10 with ifort 11 and latest official mesa release compiles 
and runs with no errors, so far.
If it's possible, please try Fedora 10.

Best regards

Marcin Mackiewicz

Miroslav Mocak wrote:
> Dear MESA users,
>   I have a problem with running the latest version of
> MESA compiled by ifort (version 11) compiler on my machine which has
> the Intel I7 processor and runs Fedora 8. After
> instalation (which went ok), I tried to run the default
> problem in the /mesa/star/test directory by ./rn, but the
> code stopped by giving me the following message 
> nvar /= s% nvar eval_equ . Could you help me to resolve
> the issue? Thanks. Below you'll find the whole text output
> which I get until the code stops.
> Regards
> Miro
> ./rn
> Wed Sep  9 15:29:15 CEST 2009
>  loading eos data
>  loading kap data
>  finished loading
>  The terminal output contains the following information:
>       'step' is the number of steps since the start of the run,
>       'lg_dt_yr' is log10 timestep in years,
>       'age_yr' is the simulated years since the start run,
>       'lg_Tcntr' is log10 center temperature (K),
>       'lg_Dcntr' is log10 center density (g/cm^3),
>       'lg_Pcntr' is log10 center pressure (ergs/cm^3),
>       'lg_Teff' is log10 surface temperature (K),
>       'lg_R' is log10 surface radius (Rsun),
>       'lg_L' is log10 surface luminosity (Lsun),
>       'lg_LH' is log10 total PP and CNO hydrogen burning power (Lsun),
>       'lg_L3a' is log10 total triple-alpha helium burning power (Lsun),
>       'lg_LZ' is log10 total burning power excluding LH and L3a and 
> photodisintegrations (Lsun),
>       'lg_LNuc' is log10 nuclear power excluding photodisintegration and 
> neutrinos (Lsun),
>       'lg_LNeu' is log10 total neutrino power (Lsun),
>       'lg_Psurf' is log10 surface pressure (gas + radiation),
>       'Mass' is the total stellar mass (Msun),
>       'lg_Mdot' is log10 magnitude of rate of change of mass (Msun/year),
>       'lg_Dsurf' is log10 surface density (g/cm^3),
>       'H_rich' is the remaining mass outside of the hydrogen poor core,
>       'H_poor' is the core mass where hydrogen abundance is <= 0.37E+00
>       'He_poor' is the core mass where helium abundance is <= 0.47E+00
>       'H_cntr' is the center H1 mass fraction,
>       'He_cntr' is the center He4 mass fraction,
>       'C_cntr' is the center C12 mass fraction,
>       'N_cntr' is the center N14 mass fraction,
>       'O_cntr' is the center O16 mass fraction,
>       'Ne_cntr' is the center Ne20 mass fraction,
>       'X_avg' is the star average hydrogen mass fraction,
>       'Y_avg' is the star average helium mass fraction,
>       'Z_avg' is the star average metallicity,
>       'max_avg' is the star total mass fraction of the heaviest isotope,
>       'gam_cntr' is the center plasma interaction parameter,
>       'eta_cntr' is the center electron degeneracy parameter,
>       'pts' is the number of grid points in the current model,
>       'jacs' is the number of jacobians created in the current step,
>       'retry' is the number of step retries required during the run,
>       'bckup' is the number of step backups required during the run,
>       'dt_limit' is an indication of what limited the timestep.
>  All this and more are saved in 'LOGS/star.log' during the run.
>  load starting model from ../starting_models
> __________________________________________________________________________________________________________________________________________________
>        step    lg_Tcntr    lg_Teff    lg_LH     lg_Lnuc     Mass       
> H_rich     H_cntr     N_cntr     X_surf     X_avg     eta_cntr   pts  retry
>    lg_dt_yr    lg_Dcntr   lg_Rsurf    lg_L3a    lg_Lneu     lg_Mdot    
> H_poor     He_cntr    O_cntr     Z_surf     Y_avg     gam_cntr  jacs  bckup
>      age_yr    lg_Pcntr    lg_L       lg_LZ     lg_Psurf    lg_Dsurf   
> He_poor    C_cntr     Ne_cntr    Z_cntr     Z_avg     max_avg      dt_limit
> __________________________________________________________________________________________________________________________________________________
>  nvar /= s% nvar
> eval_equ

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