ArrayFire cannot load libaf.so.3

[thprfssr]

After installing ArrayFire in Julia's interactive package manager, I did test ArrayFire, and it gave me the following output:

(@v1.5) pkg> test ArrayFire
    Testing ArrayFire
Status `/tmp/jl_nKRndk/Project.toml`
  [b19378d9] ArrayFire v1.0.7
  [717857b8] DSP v0.6.10
  [7a1cc6ca] FFTW v1.3.2
  [276daf66] SpecialFunctions v0.10.3
  [8f399da3] Libdl
  [37e2e46d] LinearAlgebra
  [9a3f8284] Random
  [2f01184e] SparseArrays
  [10745b16] Statistics
  [8dfed614] Test
Status `/tmp/jl_nKRndk/Manifest.toml`
  [621f4979] AbstractFFTs v1.0.0
  [79e6a3ab] Adapt v3.2.0
  [b19378d9] ArrayFire v1.0.7
  [56f22d72] Artifacts v1.3.0
  [e66e0078] CompilerSupportLibraries_jll v0.3.4+0
  [717857b8] DSP v0.6.10
  [e2ba6199] ExprTools v0.1.3
  [8f5d6c58] EzXML v1.1.0
  [7a1cc6ca] FFTW v1.3.2
  [f5851436] FFTW_jll v3.3.9+7
  [1d5cc7b8] IntelOpenMP_jll v2018.0.3+2
  [d8418881] Intervals v1.5.0
  [c8e1da08] IterTools v1.3.0
  [692b3bcd] JLLWrappers v1.2.0
  [4af54fe1] LazyArtifacts v1.3.0
  [94ce4f54] Libiconv_jll v1.16.0+7
  [856f044c] MKL_jll v2021.1.1+1
  [78c3b35d] Mocking v0.7.1
  [6fe1bfb0] OffsetArrays v1.5.3
  [efe28fd5] OpenSpecFun_jll v0.5.3+4
  [f27b6e38] Polynomials v1.2.0
  [3cdcf5f2] RecipesBase v1.1.1
  [189a3867] Reexport v1.0.0
  [276daf66] SpecialFunctions v0.10.3
  [f269a46b] TimeZones v1.5.3
  [02c8fc9c] XML2_jll v2.9.10+3
  [83775a58] Zlib_jll v1.2.11+18
  [2a0f44e3] Base64
  [ade2ca70] Dates
  [8ba89e20] Distributed
  [b77e0a4c] InteractiveUtils
  [76f85450] LibGit2
  [8f399da3] Libdl
  [37e2e46d] LinearAlgebra
  [56ddb016] Logging
  [d6f4376e] Markdown
  [44cfe95a] Pkg
  [de0858da] Printf
  [3fa0cd96] REPL
  [9a3f8284] Random
  [ea8e919c] SHA
  [9e88b42a] Serialization
  [6462fe0b] Sockets
  [2f01184e] SparseArrays
  [10745b16] Statistics
  [8dfed614] Test
  [cf7118a7] UUIDs
  [4ec0a83e] Unicode
ERROR: LoadError: InitError: could not load library "libaf.so.3"
libaf.so.3: cannot open shared object file: No such file or directory
Stacktrace:
 [1] dlopen at /build/julia/src/julia-1.5.3/usr/share/julia/stdlib/v1.5/Libdl/src/Libdl.jl:109 [inlined] (repeats 2 times)
 [2] __init__() at /home/javier/.julia/packages/ArrayFire/U0hth/src/util.jl:59
 [3] include(::String) at ./client.jl:457
 [4] top-level scope at none:6
during initialization of module ArrayFire
in expression starting at /home/javier/.julia/packages/ArrayFire/U0hth/test/runtests.jl:1
ERROR: Package ArrayFire errored during testing

How can I fix that error?

[ghost]

You need to install ArrayFire library, it is not included with the package.

[thprfssr]

So, I have installed the package as you suggested. I have Arch Linux, so I ran sudo pacman -S arrayfire. But Julia still complained when I tried to use the package:

julia> using ArrayFire
ERROR: InitError: could not load library "libaf.so.3"
libOpenCL.so.1: cannot open shared object file: No such file or directory
Stacktrace:
 [1] dlopen at /build/julia/src/julia-1.5.3/usr/share/julia/stdlib/v1.5/Libdl/src/Libdl.jl:109 [inlined] (repeats 2 times)
 [2] __init__() at /home/javier/.julia/packages/ArrayFire/U0hth/src/util.jl:59
 [3] run_repl(::REPL.AbstractREPL, ::Any) at /build/julia/src/julia-1.5.3/usr/share/julia/stdlib/v1.5/REPL/src/REPL.jl:288
during initialization of module ArrayFire

[ghost]

libOpenCL.so.1: cannot open shared object file: No such file or directory

Now it fails to load OpenCL libraries.

[thprfssr]

Thank you! I fixed it by installing the OpenCL ICD loader implementation, with
sudo pacman -S ocl-icd

Cheers!