Add CPU definition

Also remove unused file

Author: vchuravy

src/cpu.jl

@@ -21,16 +21,16 @@ end
 
 ## Memory Operations
 
-KA.allocate(::POCLBackend, ::Type{T}, dims::Tuple) where {T} = Array{T}(undef, dims)
+KA.allocate(::POCLBackend, ::Type{T}, dims::Tuple; unified::Bool = false) where {T} = Array{T}(undef, dims)
 
-function KA.zeros(backend::POCLBackend, ::Type{T}, dims::Tuple) where {T}
-    arr = KA.allocate(backend, T, dims)
+function KA.zeros(backend::POCLBackend, ::Type{T}, dims::Tuple; kwargs...) where {T}
+    arr = KA.allocate(backend, T, dims; kwargs...)
     kernel = KA.init_kernel(backend)
     kernel(arr, zero, T, ndrange = length(arr))
     return arr
 end
-function KA.ones(backend::POCLBackend, ::Type{T}, dims::Tuple) where {T}
-    arr = KA.allocate(backend, T, dims)
+function KA.ones(backend::POCLBackend, ::Type{T}, dims::Tuple; kwargs...) where {T}
+    arr = KA.allocate(backend, T, dims; kwargs...)
     kernel = KA.init_kernel(backend)
     kernel(arr, one, T; ndrange = length(arr))
     return arr
@@ -58,6 +58,7 @@ KA.pagelock!(::POCLBackend, x) = nothing
 KA.get_backend(::Array) = POCLBackend()
 KA.synchronize(::POCLBackend) = nothing
 KA.supports_float64(::POCLBackend) = true
+KA.supports_unified(::POCLBackend) = true
 
 
 ## Kernel Launch