LoadError: Cannot find or load libmxnet.dylib

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
julia
Domain
build-system, machine-learning

Research direction

Start with MXNet/src/base.jl at line 38 and the loading path from MXNet/src/MXNet.jl at line 25, then review how the package build locates the native library on macOS. Compare the generated libmxnet.so and libmxnet.a with the library name expected during using MXNet; done means the package precompiles and loads successfully on the stated platform.

Written by the indexing model from the issue text.

Description

Hi, I have performed the following steps:

1). built MXNet from source with GPU support which generated the following 2 files:

libmxnet.a
libmxnet.so

2). withing Julia 0.6.2, Pkg.add("MXNet")

julia> Pkg.add("MXNet")
INFO: Installing MXNet v0.3.0
INFO: Building MXNet
INFO: MXNET_HOME environment detected: /Users/conradwt/ai.dir/projects/mxnet
INFO: Trying to load existing libmxnet...
INFO: Failed to load existing libmxnet, trying to build from source...
INFO: Found a CUDA installation.
INFO: Found a CuDNN installation.
INFO: CUDA_HOME -> /usr/local/cuda
INFO: Unsure if we can build against mkl.
INFO: Attempting build anyway.
INFO: USE_JULIA_BLAS -> true
INFO: Package database updated

3). within Julia 0.6.2, using MXNet

julia> using MXNet
INFO: Precompiling module MXNet.
ERROR: LoadError: LoadError: Cannot find or load libmxnet.dylib. Please see the document on how to build it.
Stacktrace:
 [1] error(::String) at ./error.jl:21
 [2] include_from_node1(::String) at ./loading.jl:576
 [3] include(::String) at ./sysimg.jl:14
 [4] include_from_node1(::String) at ./loading.jl:576
 [5] include(::String) at ./sysimg.jl:14
 [6] anonymous at ./<missing>:2
while loading /Applications/JuliaPro-0.6.2.2.app/Contents/Resources/pkgs-0.6.2.2/v0.6/MXNet/src/base.jl, in expression starting on line 38
while loading /Applications/JuliaPro-0.6.2.2.app/Contents/Resources/pkgs-0.6.2.2/v0.6/MXNet/src/MXNet.jl, in expression starting on line 25
ERROR: Failed to precompile MXNet to /Applications/JuliaPro-0.6.2.2.app/Contents/Resources/pkgs-0.6.2.2/lib/v0.6/MXNet.ji.
Stacktrace:
 [1] compilecache(::String) at ./loading.jl:710
 [2] _require(::Symbol) at ./loading.jl:497
 [3] require(::Symbol) at ./loading.jl:405

Note: libmxnet.dylib was not created but a libmxnet.so and libmxnet.a were created in step (1). Thus, I'm not sure why using MXNet is looking for a different file here.

Comment

Platform

  • macOS 10.13.3
  • Julia 0.6.2
  • MXNet 1.1.0
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