Computers and software • Post processing cobaya
Hello! I am postprocessing my chains to add r_dh parameter. I run the block of code that I am pasting below and I get nan for this parameter, when rdrag and H0 are the usual values. Is there something...
View ArticleComputers and software • CAMB: Modifying the Code to Define an Arbitrary w(a)
Hello everyone,I have modified the `set_params()` function in `cosmo_packages/code/CAMB/camb/` to define a new dark energy model where the equation of state is described by calling...
View ArticleComputers and software • About cosmomc
Dear Antony,My student and I are attempting to install cosmomc, but we are encountering issues with the compiler versions required by install the Planck likelihood code (plc-3.01). We have not been...
View ArticleComputers and software • Re: About cosmomc
This is a problem with clik not Cosmomc. You can try https://github.com/benabed/, but there are often problems.There are native python likelihoods available with Cobaya.Statistics: Posted by Antony...
View ArticleComputers and software • Re: CAMB: Modifying the Code to Define an Arbitrary...
It can't by default depend on cosmological parameters, but you could probably modify the call in camb.set_params to pass additional info. The dependencies can get a bit complicated in general (e.g. if...
View ArticleComputers and software • COBAYA: Issue with passing parameters values from...
Hi everyone, I'm trying to make my own likelihood class in Cobaya. However, I'm struggling with nuisance parameters. To make everything more clear, I'll make a simple example. Let's say this is the...
View ArticleComputers and software • Re: COBAYA: Issue with passing parameters values...
Your likelihood needs to either have an attribute Code: params = {'another_nuisance_param': None, .. etc} or declare params in a likelihood yaml. Or return the parameter names from...
View ArticleComputers and software • About the instalation of cosmo with cobaya
Dear Antony,We are trying to work with cobaya, but when try to do the instalation of Cosmo:cobaya-install cosmo -p /pathWe obtain the following error messages:[install] *ERROR* The installation (or...
View ArticleComputers and software • Re: About the instalation of cosmo with cobaya
Dear Antony,Finally I can to install CAMB and CLASS but I still have problems with the likehood of Planck, I try doing cobaya-install planck_2018_highl_plik.TTTEEEI obtain the same error that I...
View ArticleJob vacancies • Two Postdoctoral Positions in Particle Physics and Cosmology...
The Centre for Physics of the University of Coimbra (CFisUC) invites applications for two Postdoctoral positions in Particle Physics and Cosmology. The positions are funded through the FCT-CERN...
View ArticleConferences and meetings • Cosmology on the Beach 2024, Dec 5-8
Cosmology on the Beach 2024IX Essential Cosmology for the Next Generationwww.cosmologyonthebeach.com/2024/Registration form: https://forms.gle/m4wossf6qjGpaTfV8We are delighted to announce the 9th...
View ArticleComputers and software • CAMB: adding a new fluid
Hi everyone,I'm trying to modify CAMB 1.5.6 and add a new fluid to the code, which has a specific equation of state and Omega. I think I handled the Fortran part correctly (but I could be wrong). My...
View ArticleComputers and software • Re: CAMB: adding a new fluid
Depends what you changed/how you implemented it in fortran (e.g. whether making new DarkEnergy subclass, or main equation editing etc). Might help to point to a github code diff.Statistics: Posted by...
View ArticleComputers and software • COBAYA: Issue with chains not converging
Hello everyone, I was trying to make some cobaya runs to understand how the program works. For example, I ran with the following .yaml file, which is taken from the cobaya input generator ( plus I...
View ArticleComputers and software • CAMB: Modifications for Altered Background Dynamics
Hello everyone,I'm working on a project where I need to modify CAMB to account for a model in which the Omegas are factored differently (adding more parameters), but only in the context of background...
View ArticleComputers and software • Re: CAMB: Modifications for Altered Background Dynamics
The help assistant can answer this one (help_assist.php)Modify dtauda Subroutine: The subroutine dtauda(a) in equations.f90 returns dt/da and is used wherever the background evolution is needed. You...
View ArticleComputers and software • Re: COBAYA: Issue with chains not converging
You have a lot of totally unconstrained parameters because there is no data that can constrain them (logA, ns..).Your proposal width for e.g. logA is tiny 0.001, much smaller than the prior, so it...
View ArticleConferences and meetings • 5th Testing Gravity in Vancouver, Jan 29 - Feb 1,...
The registration is open for the 5th Testing Gravity conference at SFU Harbour Centre in Vancouver, January 29 - February 1, 2025. Like the previous meetings in this series, TG2025 will feature the...
View ArticleComputers and software • COBAYA: 'Illegal instruction' error on cluster
Hello everyone, I'm trying to run Cobaya with a custom made likelihood class. The code works fine in local, however when trying to run the same exact code on a cluster, it gives me an error saying...
View ArticleComputers and software • mpirun exceeds requested CPU usage
I'm trying to run cobaya withCode: mpirun -n 8 cobaya-run test.yamlwhich I run from inside a script that is sent to an HTCondor node. The submit file looks like this:Code: executable =...
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