install: Refactor Intel paths

[georgebisbas]

No description provided.

[codecov]

Codecov Report

Merging #1962 (2deaa03) into master (c7160b4) will decrease coverage by 24.38%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #1962       +/-   ##
===========================================
- Coverage   87.87%   63.48%   -24.39%     
===========================================
  Files         213      139       -74     
  Lines       36002    20006    -15996     
  Branches     5416     4252     -1164     
===========================================
- Hits        31635    12700    -18935     
- Misses       3861     6679     +2818     
- Partials      506      627      +121     

Impacted Files	Coverage Δ
devito/builtins/utils.py	14.75% <0.00%> (-81.97%)	⬇️
devito/builtins/initializers.py	10.37% <0.00%> (-81.49%)	⬇️
devito/core/autotuning.py	13.00% <0.00%> (-80.75%)	⬇️
devito/passes/clusters/buffering.py	14.71% <0.00%> (-80.24%)	⬇️
devito/passes/iet/languages/utils.py	20.00% <0.00%> (-80.00%)	⬇️
devito/finite_differences/coefficients.py	18.26% <0.00%> (-74.43%)	⬇️
devito/mpi/routines.py	25.03% <0.00%> (-69.96%)	⬇️
devito/data/utils.py	23.14% <0.00%> (-69.44%)	⬇️
devito/builtins/arithmetic.py	18.64% <0.00%> (-62.31%)	⬇️
devito/checkpointing/checkpoint.py	39.53% <0.00%> (-60.47%)	⬇️
... and 168 more

[FabioLuporini]

OK

[mloubout]

I really don't like this the servars is there for that