How can I get CAMB about hmf

[steven-murray]

Hi there,

I refer you to the camb website: http://camb.info. From there you will find the downloads (you will be required to tick a box or two and check your email for the relevant final url). Once you have the download url for the specific version of CAMB you like, you can do one of two things:

1. Download the source into the pycamb/ distribution folder and unzip it, and run the install.
2. Run python setup.py install --get=<url> where the url is the one for the download (should end with a .tar.gz).

To install without root permission, you have a few options (look it up on google there should be heaps of info). My preferred method is to use the Anaconda python distribution, which installs locally to wherever you want it to. Another method is to use a flag in the python setup.py install command that installs the package locally.

Hope that helps!

[neuronphysics]

Hi again,

Thanks for the tips. I did install pycamb with the command like you have suggested. I got some warning during installation process such as
build/src.linux-x86_64-2.7/src/_pycamb-f2pywrappers2.f90:200.10:

  use pycamb_mod, only : matter_power_sigma8
      1

Warning: Unused module variable 'matter_power_sigma8' which has been explicitly imported at (1)
build/src.linux-x86_64-2.7/src/_pycamb-f2pywrappers2.f90:200.10:

  use pycamb_mod, only : matter_power_sigma8
      1

Warning: Unused module variable 'transfers' which has been explicitly imported at (1)
build/src.linux-x86_64-2.7/src/_pycamb-f2pywrappers2.f90:200.10:

  use pycamb_mod, only : matter_power_sigma8
      1

Warning: Unused module variable 'transfers_k' which has been explicitly imported at (1)
build/src.linux-x86_64-2.7/src/_pycamb-f2pywrappers2.f90:200.10:

  use pycamb_mod, only : matter_power_sigma8
      1

Warning: Unused module variable 'transfers_sigma8' which has been explicitly imported at (1)

Then I have installed hmf without any error but when I try to run it with your given example I got this error

from hmf import MassFunction
hmf = MassFunction()
mass_variance = hmf.sigma
Segmentation fault (core dumped)
and it crashed. I don't know what might be a problem. I will appreciate if you could help.

Thanks.

[steven-murray]

That's interesting. The warnings are fine as far as I know. I've never gotten a segfault with pycamb on default settings before. I don't think I'll be able to help much unless I know your OS, compiler, python version and numpy version.

[steven-murray]

Hi, I hope you were able to get this working. Let us know if it's still a problem, or what the solution was, but otherwise I am going to close this.