Fix for Inconsistent Uneven Grid Distributions (#167)

Author: JosephTomlinson

src/darray.jl

@@ -285,7 +285,7 @@ end
 # get array of start indices for dividing sz into nc chunks
 function defaultdist(sz::Int, nc::Int)
     if sz >= nc
-        return round.(Int, range(1, stop=sz+1, length=nc+1))
+        return ceil.(Int, range(1, stop=sz+1, length=nc+1))
     else
         return [[1:(sz+1);]; zeros(Int, nc-sz)]
     end

test/darray.jl

@@ -56,6 +56,13 @@ using SparseArrays: nnz
         @test DistributedArrays.empty_localpart(Float64,2,LowerTriangular{Float64,Matrix{Float64}}) isa
                 LowerTriangular
     end
+    
+    @testset "Consistent Uneven Distribution issue #166" begin
+        DA = drand((2+length(OTHERIDS),), [MYID, OTHERIDS])
+        @test fetch(@spawnat MYID length(localpart(DA)) == 2)
+        @test fetch(@spawnat OTHERIDS length(localpart(DA)) == 1)
+        close(DA)
+    end
 end
 
 check_leaks()