Package is not loadable if e.g. CUBLAS cannot be opened

[KristofferC]

The comment at

CuArrays.jl/src/CuArrays.jl

Lines 19 to 20 in a3d2650

	# default (non-functional) values for critical variables,
	# making it possible to _load_ the package at all times.

seems to indicate that we want the package to be loadable even if certain functionality is missing. However, if the CUBLAS library cannot be called, we will not define the CUBLAS module and subsequently error here:

CuArrays.jl/src/deprecated.jl

Line 5 in a3d2650

@deprecate_binding BLAS CUBLAS

[hack1nt0]

Had a related problem.

julia> using CuArrays
ERROR: LoadError: LoadError: UndefVarError: CUBLAS not defined
Stacktrace:
 [1] top-level scope at none:0 (repeats 2 times)
 [2] include at ./boot.jl:317 [inlined]
 [3] include_relative(::Module, ::String) at ./loading.jl:1044
 [4] include at ./sysimg.jl:29 [inlined]
 [5] include(::String) at /home/dy/.julia/packages/CuArrays/PD3UJ/src/CuArrays.jl:3
 [6] top-level scope at none:0
 [7] top-level scope at none:2
in expression starting at /home/dy/.julia/packages/CuArrays/PD3UJ/src/deprecated.jl:5
in expression starting at /home/dy/.julia/packages/CuArrays/PD3UJ/src/CuArrays.jl:53

julia> versioninfo()
Julia Version 1.0.3
Commit 099e826241 (2018-12-18 01:34 UTC)
Platform Info:
  OS: Linux (x86_64-redhat-linux)
  CPU: Intel(R) Pentium(R) CPU G4400 @ 3.30GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-6.0.0 (ORCJIT, skylake)

But I have cublas installed, and samples passed. As below:

$ dnf list --installed | grep blas
libcublas-devel.x86_64                               10.1.0.105-1                           @cuda-10-1-local-10.1.105-418.39
libcublas10.x86_64                                   10.1.0.105-1                           @cuda-10-1-local-10.1.105-418.39
openblas.x86_64                                      0.3.5-1.fc29                           @updates                        
openblas-serial.x86_64                               0.3.5-1.fc29                           @updates                        
openblas-srpm-macros.noarch                          2-4.fc29                               @fedora                         
openblas-threads64_.x86_64                           0.3.5-1.fc29                           @updates     

[maleadt]

CUBLAS should always be detected; please open a new issue with the output of Pkg.build() (run with JULIA_DEBUG="CUDAapi") and the contents of CuArrays/deps/ext.jl