FMIImport.jl implements the import functionalities of the FMI-standard (fmi-standard.org) for the Julia programming language. FMIImport.jl provides the foundation for the Julia packages FMI.jl and FMIFlux.jl.
License: MIT License
I'm using FMI.jl (and therefore FMIImport.jl) to simulate OpenModelica FMUs.
When running fmu = FMI.fmiLoad(fmuPath) I'm getting a bunch of info messages about empty files.
julia> fmu = FMI.fmiLoad(fmuPath)
[ Info: fmi2Unzip(...): Written file `binaries/linux64/simpleLoop_FMU.libs`, but file is empty.
[ Info: fmi2Unzip(...): Written file `sources/simpleLoop_11mix.h`, but file is empty.
[ Info: fmi2Unzip(...): Written file `sources/simpleLoop_includes.h`, but file is empty.
[ Info: fmi2Unzip(...): Written file `sources/simpleLoop_FMU.libs`, but file is empty.
[ Info: fmi2Unzip(...): Written file `sources/isfmi2`, but file is empty.
[ Info: fmi2Unzip(...): Successfully unzipped 229 files at `/tmp/fmijl_HTprAI/simpleLoop.interface`.
[ Info: fmi2Load(...): FMU resources location is `file:////tmp/fmijl_HTprAI/simpleLoop.interface/resources`It would be nice to get the option to disable info prints from all and/or specific parts of FMImport.jl with some setting in FMI.jl.
My workaround for the moment is to use Suppressor.jl
local fmu
Suppressor.@suppress begin
fmu = FMI.fmiLoad(fmuPath)
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Hi, I'm using FMIImport in part of my simulations, and ran into some issues here. I'm running my own simulation loop (so not the standard fmiSimulate function) but I copied parts of that loop in FMI.jl. To set the inputs when calling the fmu I use something akin to the following:
sim!(fmu::FMU2, c::FMU2Component, u::AbstractArray, t::Real, dt::Real)
md = fmu.modelDescription
fmi2SetReal(c, md.inputValueReferences, u)
fmi2DoStep(c, dt; currentCommunicationPoint=t)
return fmi2GetReal(fmu, md.outputValueReferences)
endThe issue is that fmi2SetReal only works with non-abstract vectors for the values argument. In my case, values is a view of an array, then the call fmi2SetReal(c::FMUComponent, vr::Vector{UInt32}, values::SubArray{Float64, 1, ...}) throws the following error
AssertionError: fmi2SetReal(...): `vr` (4) and `values` (1) need to be the same length.
The culprit is the[prepareValue function in FMIImport.jl, which transforms values::SubArray to a vector with 1 element values::Vector{SubArray}. values fails the check isa(values, Array). When I override this implementation (see below) my sim! function runs perfectly. Note that Array has been replaced by AbstractArray
function FMIImport.prepareValue(value)
if isa(value, AbstractArray) && length(size(value)) == 1
return value
else
return [value]
end
@assert false "prepareValue(...): Unknown dimension of structure `$dim`."
end A multiple dispatch solution may be a bit more elegant though.
FMIImport.prepareValue(value) = [value]
FMIImport.prepareValue(value::AbstractVector) = valuefmi2CompletedIntegratorStep!fmi2GetNames returns a vector of Any. It should return a vector of strings as they are list of names. This affects for simulating as well.
MWE:
using FMI
using FMIImport
fmu = FMI.fmi2Load("CoupledClutches.fmu")
output_names = FMIImport.fmi2GetOutputNames(fmu)
sol = FMI.fmi2Simulate(fmu; recordValues=output_names)gives an error:
ERROR: TypeError: in keyword argument recordValues, expected Union{Nothing, Int64, UInt32, AbstractVector{Int64}, AbstractVector{String}, AbstractVector{UInt32}, String, Symbol}, got a value of type Vector{Any}Here output_names should return a vector of strings
... when plotting ranges (t_s, t_e) with t_s != 0
When pre-compiling my package I get warnings that method definitions are overwritten:
WARNING: Method definition fmi2GetStartValue(FMICore.FMU2Component, Union{Nothing, Int64, UInt32, AbstractArray{Int64, 1}, AbstractArray{String, 1}, AbstractArray{UInt32, 1}, String, Symbol}) in module FMIImport at /path/to/FMIImport/snZaf/src/FMI2_int.jl:706 overwritten at path/to/FMIImport/snZaf/src/FMI2_ext.jl:708.
** incremental compilation may be fatally broken for this module **And indeed there are two definitions for fmi2GetStartValue: https://github.com/ThummeTo/FMIImport.jl/blob/main/src/FMI2_ext.jl#L690 and https://github.com/ThummeTo/FMIImport.jl/blob/main/src/FMI2_int.jl#L706.
Same issue for fmi2GetNamesAndInitials
WARNING: Method definition fmi2GetNamesAndInitials(FMICore.fmi2ModelDescription) in module FMIImport at /path/to/FMIImport/snZaf/src/FMI2_md.jl:1055 overwritten at /path/to/FMIImport/snZaf/src/FMI2_md.jl:1068.
** incremental compilation may be fatally broken for this module **While trying to load an fmu get the following error
ERROR: UndefVarError: fmi3ProvidesDirectionalDerivatives not defined
Stacktrace:
[1] fmi3Load(pathToFMU::String; unpackPath::Nothing)
@ FMIImport ~/.julia/packages/FMIImport/jYeff/src/FMI3_ext.jl:161
[2] fmi3Load(pathToFMU::String)
@ FMIImport ~/.julia/packages/FMIImport/jYeff/src/FMI3_ext.jl:20
[3] top-level scope
@ REPL[2]:1It seems a typo here
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