[julia-users] How to load data from a *.mat file on all workers in Julia 0.4.5 without require()?

['Jhan Jar' via julia-users]

Hi,

In Julia 0.3.5, the following loaded data on all workers:

    addprocs(3)
    require("data_loading_script.jl")

Contents of my data_loading_script.jl were akin to:

    using MAT
    source_file = matopen(data_filename)

    var1 = read(source_file, "var1");
    var2 = read(source_file, "var2")
    .
    .
    varN = read(source_file, "varN")

    close(source_file)

Now, to make it work without require() in Julia 0.4.5 I changed 
data_loading_script.jl 
to:
  @everywhere begin
    using MAT
    source_file = matopen(data_filename)

    var1 = read(source_file, "var1");
    var2 = read(source_file, "var2")
    .
    .
    varN = read(source_file, "varN")

    close(source_file)
  end

And when I do a include("data_loading_script.jl"), the data/vars get loaded 
on all workers, but the REPL displays:

WARNING: replacing module MAT
WARNING: Method definition read(Union{HDF5.HDF5Group, HDF5.HDF5Datatype, 
HDF5.HD
F5Dataset}, Type{Bool}) in module MAT_HDF5 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\MA
T_HDF5.jl:565 overwritten in module MAT_HDF5 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\
MAT_HDF5.jl:565.
WARNING: Method definition read(Union{HDF5.HDF5Group, HDF5.HDF5Datatype, 
HDF5.HD
F5Dataset}, Type{Array{Bool, N<:Any}}) in module MAT_HDF5 at 
C:\Users\XYZ\.julia\
v0.4\MAT\src\MAT_HDF5.jl:569 overwritten in module MAT_HDF5 at 
C:\Users\XYZ\.juli
a\v0.4\MAT\src\MAT_HDF5.jl:569.
WARNING: replacing module MAT
WARNING: Method definition read(Union{HDF5.HDF5Group, HDF5.HDF5Datatype, 
HDF5.HD
F5Dataset}, Type{Bool}) in module MAT_HDF5 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\MA
T_HDF5.jl:565 overwritten in module MAT_HDF5 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\
MAT_HDF5.jl:565.
WARNING: Method definition readWARNING: replacing module MAT
(Union{HDF5.HDF5Group, HDF5WARNING: Method definition 
read.(HDF5DatatypeUnion, {
HDF5HDF5..HDF5DatasetHDF5Group}, , HDF5Type.{HDF5DatatypeArray, {HDF5Bool., 
HDF5
DatasetN<:}Any, }Type}{)Bool in module MAT_HDF5} at 
C:\Users\XYZ\.julia\v0.4\MAT\
src\MAT_HDF5.jl:569) overwritten in module MAT_HDF5 in module MAT_HDF5 at 
C:\Use
rs\XYZ\.julia\v0.4\MAT\src\MAT_HDF5.jl:569 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\MAT
_HDF5.jl:565.
 overwritten in module MAT_HDF5 at 
C:\Users\XYZ\.julia\v0.4\MAT\src\MAT_HDF5.jl:5
65.
WARNING: Method definition read(Union{HDF5.HDF5Group, HDF5.HDF5Datatype, 
HDF5.HD
F5Dataset}, Type{Array{Bool, N<:Any}}) in module MAT_HDF5 at 
C:\Users\XYZ\.julia\
v0.4\MAT\src\MAT_HDF5.jl:569 overwritten in module MAT_HDF5 at 
C:\Users\XYZ\.juli
a\v0.4\MAT\src\MAT_HDF5.jl:569.


What am I doing wrong?

Thanks.