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Raynest integration

Vasco Gennari requested to merge raynest_integration into master

Implementation of the sampler switch between cpnest and raynest.

The core implementation consists in letting LIGOVirgoModel inheriting both model.Model classes from the two samplers (here), and then remove the one that is not used (here) based on the selected sampler. The implementation has been tested on CIT cluster.

MacOS compatibility

Unfortunately, I was not able to set up an environment that works for both samplers together on a MacOS machine.

  • cpnest is not compatible with MacOS native processors arm64 for python>=3.8 (see this issue)
  • raynest does not work on a simulated x86_64 architecture (see the error below)
  • python=3.7 is not available on conda for MacOS arm64 
Python 3.8.19 (default, Mar 20 2024, 15:00:34) 
[Clang 14.0.6 ] :: Anaconda, Inc. on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import raynest.model
zsh: illegal hardware instruction  python

A possible solution could be to use a virtual environment to install python=3.7 with native arm64 architecture (see this guide).

The merge request will not be closed until a solution is found.

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