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Old 09-12-2009, 02:48 AM   #1
limh
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Registered: Aug 2009
Posts: 9

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Unhappy Segmentation faults when running Cosmomc(a program that do some Curve fitting)


Hi ,everybody

I encountered segmentation faults when tried running "./cosmomc params.ini" :


[limh@localhost camb]
./camb params.ini
Age of universe/GYr = 13.592
Reion redshift = 11.102
Om_b h^2 = 0.022000
Om_c h^2 = 0.120000
Om_nu h^2 = 0.000000
Om_Lambda = 0.710204
Om_K = 0.000000
Om_m (1-Om_K-Om_L) = 0.289796
100 theta (CosmoMC) = 1.048171
Reion opt depth = 0.0900
tau_recomb/Mpc = 280.95 tau_now/Mpc = 14085.0
[limh@localhost camb]tex error (math_lexing_error): cd ..
[limh@localhost cosmomc]
./cosmomc param.ini

Segmentation faults
[limh@localhost cosmomc]$


I tried the suggestions in
http://cosmocoffee.info/viewtopic.php?t=1074
and it didn't work !!!


Any help would be appreciated!! Thanks!!
Best regards,
a novice ,Minghua
 
Old 10-03-2009, 04:53 PM   #2
in_texas_dallas
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Registered: Sep 2009
Location: DFW
Distribution: Debian Lenny
Posts: 38

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Generic response sort of: http://en.wikipedia.org/wiki/Segmentation_fault

I'm not sure of the specifics of that program. Is that a script you fed the program?

Well, A segmentation fault can occur easily if a program that doesn't check type overrides one memory location with something that won't fit.

If I had to guess completely, I'd say whatever program you feed that script into defines a variable as say an int and then tries to put a floating point into it....

That said, I'd try to see if you can specifiy the type of all the variables and see if that doesn't help.
 
Old 10-06-2009, 02:45 AM   #3
limh
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Registered: Aug 2009
Posts: 9

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Recompiled and it worked

Thanks,in texas dallas!
I tried recompiling using the designated Intel Fortran compiler and it worked. The error message disappeared!!
 
  


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