Installing MKL on Windows fails

[ufechner7]

Installing MKL on a freshly installed Windows 10.0 home fails:

C:\Users\ufechner\tmp>julia --project
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.10.3 (2024-04-30)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(ufechner) pkg> add MKL
    Updating registry at `C:\Users\ufechner\.julia\registries\General.toml`
   Resolving package versions...
   Installed oneTBB_jll ────── v2021.12.0+0
   Installed IntelOpenMP_jll ─ v2024.1.0+0
   Installed MKL_jll ───────── v2024.1.0+0
   Installed MKL ───────────── v0.6.3
  Downloaded artifact: oneTBB
  Downloaded artifact: IntelOpenMP
    Updating `C:\Users\ufechner\Project.toml`
  [33e6dc65] + MKL v0.6.3
    Updating `C:\Users\ufechner\Manifest.toml`
  [33e6dc65] + MKL v0.6.3
  [1d5cc7b8] + IntelOpenMP_jll v2024.1.0+0
  [856f044c] + MKL_jll v2024.1.0+0
  [1317d2d5] + oneTBB_jll v2021.12.0+0
  [4af54fe1] + LazyArtifacts
Precompiling project...
  ✗ MKL_jll
  ✗ MKL
  2 dependencies successfully precompiled in 5 seconds. 91 already precompiled.
  2 dependencies errored.
  For a report of the errors see `julia> err`. To retry use `pkg> precompile`

julia> err
PkgPrecompileError: The following 1 direct dependency failed to precompile:

MKL [33e6dc65-8f57-5167-99aa-e5a354878fb2]

Failed to precompile MKL [33e6dc65-8f57-5167-99aa-e5a354878fb2] to "C:\\Users\\ufechner\\.julia\\compiled\\v1.10\\MKL\\jl_93CA.tmp".
ERROR: LoadError: InitError: could not load library "C:\Users\ufechner\.julia\artifacts\c04d0b3d18e5fcdf696745d217847f2fdcbea1ee\bin\libiomp5md.dll"
The specified module could not be found.
Stacktrace:
  [1] dlopen(s::String, flags::UInt32; throw_error::Bool)
    @ Base.Libc.Libdl .\libdl.jl:117
  [2] dlopen(s::String, flags::UInt32)
    @ Base.Libc.Libdl .\libdl.jl:116
  [3] macro expansion
    @ C:\Users\ufechner\.julia\packages\JLLWrappers\pG9bm\src\products\library_generators.jl:63 [inlined]
  [4] __init__()
    @ IntelOpenMP_jll C:\Users\ufechner\.julia\packages\IntelOpenMP_jll\hZDcv\src\wrappers\x86_64-w64-mingw32.jl:8
  [5] run_module_init(mod::Module, i::Int64)
    @ Base .\loading.jl:1134
  [6] register_restored_modules(sv::Core.SimpleVector, pkg::Base.PkgId, path::String)
    @ Base .\loading.jl:1122
  [7] _include_from_serialized(pkg::Base.PkgId, path::String, ocachepath::String, depmods::Vector{Any})
    @ Base .\loading.jl:1067
  [8] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, build_id::UInt128)
    @ Base .\loading.jl:1581
  [9] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:1938
 [10] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:1812
 [11] #invoke_in_world#3
    @ .\essentials.jl:926 [inlined]
 [12] invoke_in_world
    @ .\essentials.jl:923 [inlined]
 [13] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:1803
 [14] macro expansion
    @ .\loading.jl:1790 [inlined]
 [15] macro expansion
    @ .\lock.jl:267 [inlined]
 [16] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:1753
 [17] #invoke_in_world#3
    @ .\essentials.jl:926 [inlined]
 [18] invoke_in_world
    @ .\essentials.jl:923 [inlined]
 [19] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:1746
 [20] include(mod::Module, _path::String)
    @ Base .\Base.jl:495
 [21] top-level scope
    @ C:\Users\ufechner\.julia\packages\JLLWrappers\pG9bm\src\toplevel_generators.jl:192
 [22] include
    @ .\Base.jl:495 [inlined]
 [23] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::String)
    @ Base .\loading.jl:2222
 [24] top-level scope
    @ stdin:3
during initialization of module IntelOpenMP_jll
in expression starting at C:\Users\ufechner\.julia\packages\MKL_jll\znDzI\src\wrappers\x86_64-w64-mingw32.jl:4
in expression starting at C:\Users\ufechner\.julia\packages\MKL_jll\znDzI\src\MKL_jll.jl:2
in expression starting at stdin:3
ERROR: LoadError: Failed to precompile MKL_jll [856f044c-d86e-5d09-b602-aeab76dc8ba7] to "C:\\Users\\ufechner\\.julia\\compiled\\v1.10\\MKL_jll\\jl_949B.tmp".
Stacktrace:
  [1] error(s::String)
    @ Base .\error.jl:35
  [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, keep_loaded_modules::Bool)
    @ Base .\loading.jl:2468
  [3] compilecache
    @ .\loading.jl:2340 [inlined]
  [4] (::Base.var"#968#969"{Base.PkgId})()
    @ Base .\loading.jl:1974
  [5] mkpidlock(f::Base.var"#968#969"{Base.PkgId}, at::String, pid::Int32; kwopts::@Kwargs{stale_age::Int64, wait::Bool})
    @ FileWatching.Pidfile C:\Users\ufechner\.julia\juliaup\julia-1.10.3+0.x64.w64.mingw32\share\julia\stdlib\v1.10\FileWatching\src\pidfile.jl:93
  [6] #mkpidlock#6
    @ C:\Users\ufechner\.julia\juliaup\julia-1.10.3+0.x64.w64.mingw32\share\julia\stdlib\v1.10\FileWatching\src\pidfile.jl:88 [inlined]
  [7] trymkpidlock(::Function, ::Vararg{Any}; kwargs::@Kwargs{stale_age::Int64})
    @ FileWatching.Pidfile C:\Users\ufechner\.julia\juliaup\julia-1.10.3+0.x64.w64.mingw32\share\julia\stdlib\v1.10\FileWatching\src\pidfile.jl:111
  [8] #invokelatest#2
    @ .\essentials.jl:894 [inlined]
  [9] invokelatest
    @ .\essentials.jl:889 [inlined]
 [10] maybe_cachefile_lock(f::Base.var"#968#969"{Base.PkgId}, pkg::Base.PkgId, srcpath::String; stale_age::Int64)
    @ Base .\loading.jl:2983
 [11] maybe_cachefile_lock
    @ .\loading.jl:2980 [inlined]
 [12] _require(pkg::Base.PkgId, env::String)
    @ Base .\loading.jl:1970
 [13] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:1812
 [14] #invoke_in_world#3
    @ .\essentials.jl:926 [inlined]
 [15] invoke_in_world
    @ .\essentials.jl:923 [inlined]
 [16] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base .\loading.jl:1803
 [17] macro expansion
    @ .\loading.jl:1790 [inlined]
 [18] macro expansion
    @ .\lock.jl:267 [inlined]
 [19] __require(into::Module, mod::Symbol)
    @ Base .\loading.jl:1753
 [20] #invoke_in_world#3
    @ .\essentials.jl:926 [inlined]
 [21] invoke_in_world
    @ .\essentials.jl:923 [inlined]
 [22] require(into::Module, mod::Symbol)
    @ Base .\loading.jl:1746
 [23] include
    @ .\Base.jl:495 [inlined]
 [24] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
    @ Base .\loading.jl:2222
 [25] top-level scope
    @ stdin:3
in expression starting at C:\Users\ufechner\.julia\packages\MKL\kCNzy\src\MKL.jl:1
in expression starting at stdin:

Any idea?

Works fine on Linux.

[ufechner7]

Actually, already

using Pkg
pkg"add MKL_jll"

fails.

[giordano]

Does the mentioned file exists? If so,

using Pkg
Pkg.add("DependencyWalker")
using MKL_jll # this will fail, it's ok
using DependencyWalker
Library(raw"C:\Users\ufechner\.julia\artifacts\c04d0b3d18e5fcdf696745d217847f2fdcbea1ee\bin\libiomp5md.dll")

should tell you what library is missing. Then, thank your operating system for not giving this piece information it knows but it withhelds from you. If instead the file doesn't exist, well, you know your problem already.

[ufechner7]

Thank you! I get the following output:

julia> Library(raw"C:\Users\ufechner\.julia\artifacts\c04d0b3d18e5fcdf696745d217847f2fdcbea1ee\bin\libiomp5md.dll")
◼ C:\Users\ufechner\.julia\artifacts\c04d0b3d18e5fcdf696745d217847f2fdcbea1ee\bin\libiomp5md.dll
  ✗ VCRUNTIME140.dll (NOT FOUND)
  ◼ C:\Windows\System32\KERNEL32.DLL
    ◼ C:\Windows\System32\KERNELBASE.dll

Where can I get VCRUNTIME140.dll from, or should it be part of this package?

EDIT: Found this answer: https://answers.microsoft.com/en-us/windows/forum/all/vcruntime140dll-and-msvcp140dll-missing-in-windows/caf454d1-49f4-4d2b-b74a-c83fb7c38625

Installing https://aka.ms/vs/17/release/vc_redist.x64.exe fixed the issue...

Perhaps this workaround should be added to README.md if it cannot be fixed otherwise?

[giordano]

That's a windows system library, we can't do anything if you're missing it.

[ufechner7]

Well, the package could check if it exists and print a warning that explains how to install it...

[giordano]

the package could check if it exists

No, it couldn't because the failure happens before reaching this package.