no method matching round(::Float64, ::Int64)

[mikehui]

I am trying the example provided on the github page. When ml = ruge_stuben(A) is executed, it throws out the error:

Error showing value of type AlgebraicMultigrid.MultiLevel{AlgebraicMultigrid.Pinv{Float64},GaussSeidel{SymmetricSweep},GaussSeidel{SymmetricSweep},SparseArrays.SparseMatrixCSC{Float64,Int64},LinearAlgebra.Adjoint{Float64,SparseArrays.SparseMatrixCSC{Float64,Int64}},SparseArrays.SparseMatrixCSC{Float64,Int64},AlgebraicMultigrid.MultiLevelWorkspace{Array{Float64,1},1}}: ERROR: MethodError: no method matching round(::Float64, ::Int64) Closest candidates are: round(::Float64, ::RoundingMode{:Nearest}) at float.jl:370 round(::Float64, ::RoundingMode{:Up}) at float.jl:368 round(::Float64, ::RoundingMode{:Down}) at float.jl:366 ... Stacktrace: [1] show(::IOContext{REPL.Terminals.TTYTerminal}, ::AlgebraicMultigrid.MultiLevel{AlgebraicMultigrid.Pinv{Float64},GaussSeidel{SymmetricSweep},GaussSeidel{SymmetricSweep},SparseArrays.SparseMatrixCSC{Float64,Int64},LinearAlgebra.Adjoint{Float64,SparseArrays.SparseMatrixCSC{Float64,Int64}},SparseArrays.SparseMatrixCSC{Float64,Int64},AlgebraicMultigrid.MultiLevelWorkspace{Array{Float64,1},1}}) at /Users/huizhang/.julia/packages/AlgebraicMultigrid/xJj9G/src/multilevel.jl:82 [2] show(::IOContext{REPL.Terminals.TTYTerminal}, ::MIME{Symbol("text/plain")}, ::AlgebraicMultigrid.MultiLevel{AlgebraicMultigrid.Pinv{Float64},GaussSeidel{SymmetricSweep},GaussSeidel{SymmetricSweep},SparseArrays.SparseMatrixCSC{Float64,Int64},LinearAlgebra.Adjoint{Float64,SparseArrays.SparseMatrixCSC{Float64,Int64}},SparseArrays.SparseMatrixCSC{Float64,Int64},AlgebraicMultigrid.MultiLevelWorkspace{Array{Float64,1},1}}) at ./sysimg.jl:194 [3] display(::REPL.REPLDisplay, ::MIME{Symbol("text/plain")}, ::Any) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:131 [4] display(::REPL.REPLDisplay, ::Any) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:135 [5] display(::Any) at ./multimedia.jl:287 [6] #invokelatest#1 at ./essentials.jl:742 [inlined] [7] invokelatest at ./essentials.jl:741 [inlined] [8] print_response(::IO, ::Any, ::Any, ::Bool, ::Bool, ::Any) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:155 [9] print_response(::REPL.AbstractREPL, ::Any, ::Any, ::Bool, ::Bool) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:140 [10] (::getfield(REPL, Symbol("#do_respond#38")){Bool,getfield(REPL, Symbol("##48#57")){REPL.LineEditREPL,REPL.REPLHistoryProvider},REPL.LineEditREPL,REPL.LineEdit.Prompt})(::Any, ::Any, ::Any) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:714 [11] #invokelatest#1 at ./essentials.jl:742 [inlined] [12] invokelatest at ./essentials.jl:741 [inlined] [13] run_interface(::REPL.Terminals.TextTerminal, ::REPL.LineEdit.ModalInterface, ::REPL.LineEdit.MIState) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/LineEdit.jl:2273 [14] run_frontend(::REPL.LineEditREPL, ::REPL.REPLBackendRef) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:1035 [15] run_repl(::REPL.AbstractREPL, ::Any) at /Users/osx/buildbot/slave/package_osx64/build/usr/share/julia/stdlib/v1.1/REPL/src/REPL.jl:192 [16] (::getfield(Base, Symbol("##734#736")){Bool,Bool,Bool,Bool})(::Module) at ./client.jl:362 [17] #invokelatest#1 at ./essentials.jl:742 [inlined] [18] invokelatest at ./essentials.jl:741 [inlined] [19] run_main_repl(::Bool, ::Bool, ::Bool, ::Bool, ::Bool) at ./client.jl:346 [20] exec_options(::Base.JLOptions) at ./client.jl:284 [21] _start() at ./client.jl:436

[ranjanan]

@mikehui we've fixed this on the master branch. Could you do ]add AlgebraicMultigrid#master and check? It should work.

[mikehui]

Thanks! It works!