* First brush strokes for a hierarchy of DistributedFESpaces

* Developed ZeroMeanDistributedFESpace within this hierarchy.
* The old, unique DistributedFESpace is now called DistributedFESpaceFromLocalFESpaces
  (in the lack of a better name)

Manifest.toml

@@ -14,9 +14,9 @@ version = "2.12.0"
 
 [[ArrayLayouts]]
 deps = ["FillArrays", "LinearAlgebra", "SparseArrays"]
-git-tree-sha1 = "3aa7f96b1f5e5520d764b83e8ecda26800b7302f"
+git-tree-sha1 = "e3e0a1e7dcbfdb1fc1061bfd889581a1d942cfcb"
 uuid = "4c555306-a7a7-4459-81d9-ec55ddd5c99a"
-version = "0.4.4"
+version = "0.4.5"
 
 [[BSON]]
 git-tree-sha1 = "dd36d7cf3d185eeaaf64db902c15174b22f5dafb"
@@ -51,9 +51,9 @@ version = "0.3.0"
 
 [[Compat]]
 deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "SHA", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
-git-tree-sha1 = "083e7e5ec3ef443e9dcb6dd3fbcb815879823bfa"
+git-tree-sha1 = "215f1c81cfd1c5416cd78740bff8ef59b24cd7c0"
 uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
-version = "3.14.0"
+version = "3.15.0"
 
 [[CompilerSupportLibraries_jll]]
 deps = ["Libdl", "Pkg"]
@@ -99,9 +99,9 @@ uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"
 
 [[DocStringExtensions]]
 deps = ["LibGit2", "Markdown", "Pkg", "Test"]
-git-tree-sha1 = "c5714d9bcdba66389612dc4c47ed827c64112997"
+git-tree-sha1 = "50ddf44c53698f5e784bbebb3f4b21c5807401b1"
 uuid = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
-version = "0.8.2"
+version = "0.8.3"
 
 [[FastGaussQuadrature]]
 deps = ["LinearAlgebra", "SpecialFunctions"]
@@ -111,9 +111,9 @@ version = "0.4.2"
 
 [[FileIO]]
 deps = ["Pkg"]
-git-tree-sha1 = "1e7e88a949b52e6f7f589041bd60928322414997"
+git-tree-sha1 = "992b4aeb62f99b69fcf0cb2085094494cc05dfb3"
 uuid = "5789e2e9-d7fb-5bc7-8068-2c6fae9b9549"
-version = "1.4.1"
+version = "1.4.3"
 
 [[FillArrays]]
 deps = ["LinearAlgebra", "Random", "SparseArrays"]
@@ -135,8 +135,8 @@ version = "0.10.12"
 
 [[Gridap]]
 deps = ["AbstractTrees", "BSON", "BlockArrays", "Combinatorics", "DocStringExtensions", "FastGaussQuadrature", "FileIO", "FillArrays", "ForwardDiff", "JLD2", "JSON", "LineSearches", "LinearAlgebra", "NLsolve", "QuadGK", "SparseArrays", "StaticArrays", "Test", "WriteVTK"]
-git-tree-sha1 = "40c4f5bc6b034224872198b63f7e306e2320007b"
-repo-rev = "master"
+git-tree-sha1 = "7838554a8092b4e69042be94639f0276a55f3ecb"
+repo-rev = "fe_space_with_dof_potentially_removed"
 repo-url = "https://github.com/gridap/Gridap.jl"
 uuid = "56d4f2e9-7ea1-5844-9cf6-b9c51ca7ce8e"
 version = "0.14.0"
@@ -304,9 +304,9 @@ version = "0.2.0"
 
 [[Requires]]
 deps = ["UUIDs"]
-git-tree-sha1 = "d37400976e98018ee840e0ca4f9d20baa231dc6b"
+git-tree-sha1 = "8c08d0c7812169e438a8478dae2a529377ad13f7"
 uuid = "ae029012-a4dd-5104-9daa-d747884805df"
-version = "1.0.1"
+version = "1.0.2"
 
 [[SHA]]
 uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"

Project.toml

@@ -5,6 +5,7 @@ version = "0.1.0"
 
 [deps]
 Distances = "b4f34e82-e78d-54a5-968a-f98e89d6e8f7"
+FillArrays = "1a297f60-69ca-5386-bcde-b61e274b549b"
 Gridap = "56d4f2e9-7ea1-5844-9cf6-b9c51ca7ce8e"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 MPI = "da04e1cc-30fd-572f-bb4f-1f8673147195"

src/DistributedFESpaceFactories.jl

@@ -0,0 +1,12 @@
+function Gridap.FESpace(::Type{V}; model::DistributedDiscreteModel,kwargs...) where V
+  constraint=Gridap.FESpaces._get_kwarg(:constraint,kwargs,nothing)
+  if constraint == nothing
+    DistributedFESpaceFromLocalFESpaces(V;model=model,kwargs...)
+  elseif constraint == :zeromean
+    dkwargs=Dict(kwargs)
+    delete!(dkwargs,:constraint)
+    ZeroMeanDistributedFESpace(V;model=model,dkwargs...)
+  else
+    @unreachable "Unknown constraint value $constraint"
+  end
+end