cobaya-install cosmo fails on planck 2018

[timothydmorton]

cobaya-install cosmo fails on planck 2018

[JesusTorrado]

Hi @timothydmorton

(Very sorry for being off reach for so long)

This points to a lack of python headers. In e.g. Ubuntu, this is trivially fixed by installing python3-dev).

If this is happening in a cluster, it's more complicated. Maybe those files need to be loaded as a module of your HPC system, or are loaded not included in the INCLUDE path?

[cmbant]

Is this still an issue or can it be closed?

[lighink]

This problem is a common problem when using Anaconda python3 (python2 has no problem). It seems that the Planck Likelihood can't be installed using python3 (just the Python.h problem here). I think it is a bug and should be fixed.

[cmbant]

It works OK in Cobaya's Andronda py3 travis tests though (and cosmomc's). If someone has a specific vm or docker that reproduces it could send to Karim to look at (but could be a bug in one version of one of the anaconda package versions).

[cmbant]

I have now seen this with ifort 2017, gcc 4.8 and anaconda 3.7. It may just be a case of using gcc 7+ to be compatible with anaconda 3.7 (I got it to work by loading ifort 2019 and gcc 7).

[jlashner]

Have you tried setting the CPATH manually before installing? I think the problem on the cluster is that the python header files are not where they are on a normal system. I was able to successfully install it on USC's HPC without anaconda after setting CPATH=/usr/usc/python/3.7.4/include/python3.7m:$CPATH
which is where the python include files are located. If you're using anaconda you might need to find where it stores the header files and add that path to CPATH.