Hi,
I've been trying to use julia on one of my university machines and having
precompilation issues. The machine runs Linux x84_46 and I'm using the 0.5
generic linux binary.
I was trying to use JLD.jl and kept getting precompilation failures for
HFD5. On trying to do `using HDF5` in the REPL, it was giving me the same
error for Compat.jl. By running `using <module>` for all modules for which
precompilation was failing when trying to use JLD(HDF5->(Compat, Blosc),
FileIO) I got them all precompiled successfully. However JLD also needed
LegacyStrings to be precompiled, which does not have precompilation enabled
and has to be precompiled from another module. At which point I was stuck
and I decided to just go with `julia --compilecache=no`.
julia> using JLD
INFO: Precompiling module JLD.
ERROR: LoadError: LoadError: Failed to precompile LegacyStrings to
/nethome/rvt7/.julia/lib/v0.5/LegacyStrings.ji.
in compilecache(::String) at ./loading.jl:593
in require(::Symbol) at ./loading.jl:393
in include_from_node1(::String) at ./loading.jl:488 (repeats 2 times)
in macro expansion; at ./none:2 [inlined]
in anonymous at ./<missing>:?
in eval(::Module, ::Any) at ./boot.jl:234
in process_options(::Base.JLOptions) at ./client.jl:239
in _start() at ./client.jl:318
while loading /nethome/rvt7/.julia/v0.5/JLD/src/jld_types.jl, in expression
starting on line 1
while loading /nethome/rvt7/.julia/v0.5/JLD/src/JLD.jl, in expression
starting on line 130
ERROR: Failed to precompile JLD to /nethome/rvt7/.julia/lib/v0.5/JLD.ji.
in compilecache(::String) at ./loading.jl:593
in require(::Symbol) at ./loading.jl:422
julia> using LegacyStrings
WARNING: could not import Base.lastidx into LegacyStrings
WARNING: using LegacyStrings.utf8 in module Main conflicts with an existing
identifier.
WARNING: using LegacyStrings.ascii in module Main conflicts with an
existing identifier.
julia> using JLD
INFO: Precompiling module JLD.
WARNING: Module LegacyStrings with uuid 25677385416258011 is missing from
the cache.
This may mean module LegacyStrings does not support precompilation but is
imported by a module that does.
ERROR: LoadError: LoadError: Declaring __precompile__(false) is not allowed
in files that are being precompiled.
in require(::Symbol) at ./loading.jl:385
in include_from_node1(::String) at ./loading.jl:488 (repeats 2 times)
in macro expansion; at ./none:2 [inlined]
in anonymous at ./<missing>:?
in eval(::Module, ::Any) at ./boot.jl:234
in process_options(::Base.JLOptions) at ./client.jl:239
in _start() at ./client.jl:318
while loading /nethome/rvt7/.julia/v0.5/JLD/src/jld_types.jl, in expression
starting on line 1
while loading /nethome/rvt7/.julia/v0.5/JLD/src/JLD.jl, in expression
starting on line 130
ERROR: Failed to precompile JLD to /nethome/rvt7/.julia/lib/v0.5/JLD.ji.
in compilecache(::String) at ./loading.jl:593
in require(::Symbol) at ./loading.jl:422
On a hunch that this was occurring due to a package with precompilation
enabled trying to use another precompilation enabled package which hadn't
been precompiled yet, I tried making a minimal example to check this. I
created 2 packages Foo and Bar, both of which have precompilation enabled.
~/.julia/v0.5/Foo/Foo.jl:
module Foo
__precompile__()
using Bar
import Bar: bar
end
~/.julia/v0.5/Bar/src/Bar.jl:
module Bar
__precompile__()
export bar
const bar = "foo"
end
Now when I try using Foo, I get a precompilation failed error for Bar. Foo
does precompile when Bar is already precompiled though!
_
_ _ _(_)_ | A fresh approach to technical computing
(_) | (_) (_) | Documentation: http://docs.julialang.org
_ _ _| |_ __ _ | Type "?help" for help.
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 0.5.0 (2016-09-19 18:14 UTC)
_/ |\__'_|_|_|\__'_| | Official http://julialang.org/ release
|__/ | x86_64-pc-linux-gnu
julia> using Foo
INFO: Precompiling module Foo.
ERROR: LoadError: Failed to precompile Bar to
/nethome/rvt7/.julia/lib/v0.5/Bar.ji.
in compilecache(::String) at ./loading.jl:593
in require(::Symbol) at ./loading.jl:393
in include_from_node1(::String) at ./loading.jl:488
in macro expansion; at ./none:2 [inlined]
in anonymous at ./<missing>:?
in eval(::Module, ::Any) at ./boot.jl:234
in process_options(::Base.JLOptions) at ./client.jl:239
in _start() at ./client.jl:318
while loading /nethome/rvt7/.julia/v0.5/Foo/src/Foo.jl, in expression
starting on line 4
ERROR: Failed to precompile Foo to /nethome/rvt7/.julia/lib/v0.5/Foo.ji.
in compilecache(::String) at ./loading.jl:593
in require(::Symbol) at ./loading.jl:422
julia> using Bar
INFO: Precompiling module Bar.
WARNING: replacing module Bar.
julia> reload("Foo")
WARNING: replacing module Foo
INFO: Precompiling module Foo.
WARNING: replacing module Foo.
julia> versioninfo()
Julia Version 0.5.0
Commit 3c9d753 (2016-09-19 18:14 UTC)
Platform Info:
System: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Xeon(R) CPU X5650 @ 2.67GHz
WORD_SIZE: 64
BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Nehalem)
LAPACK: libopenblas64_
LIBM: libopenlibm
LLVM: libLLVM-3.7.1 (ORCJIT, westmere)
Any ideas why this might be occurring?
Thanks,
Rohit
