Cuda bug fixes and some mpi plumbing

[cmhamel]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 163 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.71%. Comparing base (113e243) to head (b0d27e2).
⚠️ Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
src/parallel/Interface.jl	0.00%	65 Missing ⚠️
src/parallel/ParArray.jl	0.00%	43 Missing ⚠️
src/parallel/Partitions.jl	0.00%	25 Missing ⚠️
src/parallel/MPI.jl	0.00%	24 Missing ⚠️
src/parallel/Communication.jl	0.00%	5 Missing ⚠️
ext/FiniteElementContainersCUDAExt.jl	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #199      +/-   ##
==========================================
- Coverage   78.71%   72.71%   -6.00%     
==========================================
  Files          43       48       +5     
  Lines        1964     2126     +162     
==========================================
  Hits         1546     1546              
- Misses        418      580     +162     

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