Check for CUDA availability at run time.

.gitlab-ci.yml

@@ -1,51 +1,27 @@
-before_script:
-  - export CI_DISABLE_CURNN_TEST=true
-
-variables:
-  CI_IMAGE_TAG: 'cuda'
-
 include:
-  - 'https://raw.githubusercontent.com/JuliaGPU/gitlab-ci/master/templates/v4/common.yml'
-
-.flux:
-  extends: .test
-  script:
-    - julia -e 'using InteractiveUtils;
-                versioninfo()'
-    - mkdir $JULIA_DEPOT_PATH # Pkg3.jl#325
-    - julia --project -e 'using Pkg;
-                          Pkg.instantiate();
-                          Pkg.build();
-                          Pkg.test(; coverage=true);'
-
-test:v1.0:
-   extends: .flux
-   variables:
-     CI_VERSION_TAG: 'v1.0'
-
-test:v1.1:
-   extends: .flux
-   variables:
-     CI_VERSION_TAG: 'v1.1'
-
-test:v1.2:
-   extends: .flux
-   variables:
-     CI_VERSION_TAG: 'v1.2'
-
-test:v1.3:
-   extends: .flux
-   variables:
-     CI_VERSION_TAG: 'v1.3'
-
-test:v1.0:
-   extends: .flux
-   variables:
-     CI_VERSION_TAG: 'v1.0'
-
-test:dev:
-  extends: .flux
-  variables:
-    CI_VERSION_TAG: 'dev'
-
+  - 'https://raw.githubusercontent.com/JuliaGPU/gitlab-ci/master/templates/v6.yml'
+
+image: nvidia/cuda:10.1-cudnn7-devel-ubuntu18.04
+
+
+julia:1.2:
+  extends:
+    - .julia:1.2
+    - .test
+  tags:
+    - nvidia
+
+julia:1.3:
+  extends:
+    - .julia:1.3
+    - .test
+  tags:
+    - nvidia
+
+julia:nightly:
+  extends:
+    - .julia:nightly
+    - .test
+  tags:
+    - nvidia
   allow_failure: true

.travis.yml

@@ -6,7 +6,8 @@ os:
   # - osx
 
 julia:
-  - 1.1
+  - 1.2
+  - 1.3
   - nightly
 
 matrix:
@@ -16,7 +17,7 @@ matrix:
 jobs:
   include:
     - stage: "Documentation"
-      julia: 1.0
+      julia: 1.2
       os: linux
       script:
         - julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd()));

Manifest.toml

@@ -28,10 +28,10 @@ uuid = "9e28174c-4ba2-5203-b857-d8d62c4213ee"
 version = "0.8.10"
 
 [[BinaryProvider]]
-deps = ["Libdl", "Logging", "SHA"]
-git-tree-sha1 = "c7361ce8a2129f20b0e05a89f7070820cfed6648"
+deps = ["Libdl", "SHA"]
+git-tree-sha1 = "5b08ed6036d9d3f0ee6369410b830f8873d4024c"
 uuid = "b99e7846-7c00-51b0-8f62-c81ae34c0232"
-version = "0.5.6"
+version = "0.5.8"
 
 [[CEnum]]
 git-tree-sha1 = "62847acab40e6855a9b5905ccb99c2b5cf6b3ebb"
@@ -40,9 +40,9 @@ version = "0.2.0"
 
 [[CSTParser]]
 deps = ["Tokenize"]
-git-tree-sha1 = "c69698c3d4a7255bc1b4bc2afc09f59db910243b"
+git-tree-sha1 = "99dda94f5af21a4565dc2b97edf6a95485f116c3"
 uuid = "00ebfdb7-1f24-5e51-bd34-a7502290713f"
-version = "0.6.2"
+version = "1.0.0"
 
 [[CUDAapi]]
 deps = ["Libdl", "Logging"]
@@ -51,16 +51,16 @@ uuid = "3895d2a7-ec45-59b8-82bb-cfc6a382f9b3"
 version = "1.2.0"
 
 [[CUDAdrv]]
-deps = ["CUDAapi", "Libdl", "Printf"]
-git-tree-sha1 = "9ce99b5732c70e06ed97c042187baed876fb1698"
+deps = ["CEnum", "Printf"]
+git-tree-sha1 = "96eabc95ebb83e361311330ffb574a3e2df73251"
 uuid = "c5f51814-7f29-56b8-a69c-e4d8f6be1fde"
-version = "3.1.0"
+version = "4.0.2"
 
 [[CUDAnative]]
-deps = ["Adapt", "CUDAapi", "CUDAdrv", "DataStructures", "InteractiveUtils", "LLVM", "Libdl", "Logging", "Printf", "TimerOutputs"]
-git-tree-sha1 = "52ae1ce10ebfa686e227655c47b19add89308623"
+deps = ["Adapt", "CEnum", "CUDAapi", "CUDAdrv", "DataStructures", "InteractiveUtils", "LLVM", "Libdl", "Printf", "TimerOutputs"]
+git-tree-sha1 = "861a1a9e9741cc55c973a4688079f467a72337a7"
 uuid = "be33ccc6-a3ff-5ff2-a52e-74243cff1e17"
-version = "2.3.1"
+version = "2.5.1"
 
 [[CodecZlib]]
 deps = ["BinaryProvider", "Libdl", "TranscodingStreams"]
@@ -88,9 +88,9 @@ version = "0.2.0"
 
 [[Compat]]
 deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
-git-tree-sha1 = "84aa74986c5b9b898b0d1acaf3258741ee64754f"
+git-tree-sha1 = "ed2c4abadf84c53d9e58510b5fc48912c2336fbb"
 uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
-version = "2.1.0"
+version = "2.2.0"
 
 [[Conda]]
 deps = ["JSON", "VersionParsing"]
@@ -105,23 +105,21 @@ uuid = "a8cc5b0e-0ffa-5ad4-8c14-923d3ee1735f"
 version = "4.0.0"
 
 [[CuArrays]]
-deps = ["AbstractFFTs", "Adapt", "CEnum", "CUDAapi", "CUDAdrv", "CUDAnative", "DataStructures", "GPUArrays", "LinearAlgebra", "MacroTools", "NNlib", "Printf", "Random", "Requires", "SparseArrays", "TimerOutputs"]
-git-tree-sha1 = "45683305171430978c17f496969dc9b6d3094a51"
-repo-rev = "master"
-repo-url = "https://github.com/JuliaGPU/CuArrays.jl.git"
+deps = ["AbstractFFTs", "Adapt", "CEnum", "CUDAapi", "CUDAdrv", "CUDAnative", "DataStructures", "GPUArrays", "Libdl", "LinearAlgebra", "MacroTools", "NNlib", "Printf", "Random", "Requires", "SparseArrays", "TimerOutputs"]
+git-tree-sha1 = "0d22d5a55e30e98617f258bb23688f141bfeae36"
 uuid = "3a865a2d-5b23-5a0f-bc46-62713ec82fae"
-version = "1.3.0"
+version = "1.4.1"
 
 [[DataAPI]]
-git-tree-sha1 = "8903f0219d3472543fc4b2f5ebaf675a07f817c0"
+git-tree-sha1 = "674b67f344687a88310213ddfa8a2b3c76cc4252"
 uuid = "9a962f9c-6df0-11e9-0e5d-c546b8b5ee8a"
-version = "1.0.1"
+version = "1.1.0"
 
 [[DataStructures]]
 deps = ["InteractiveUtils", "OrderedCollections"]
-git-tree-sha1 = "0809951a1774dc724da22d26e4289bbaab77809a"
+git-tree-sha1 = "1fe8fad5fc84686dcbc674aa255bc867a64f8132"
 uuid = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
-version = "0.17.0"
+version = "0.17.5"
 
 [[Dates]]
 deps = ["Printf"]
@@ -155,26 +153,26 @@ version = "1.0.1"
 
 [[FillArrays]]
 deps = ["LinearAlgebra", "Random", "SparseArrays"]
-git-tree-sha1 = "8fba6ddaf66b45dec830233cea0aae43eb1261ad"
+git-tree-sha1 = "de38b0253ade98340fabaf220f368f6144541938"
 uuid = "1a297f60-69ca-5386-bcde-b61e274b549b"
-version = "0.6.4"
+version = "0.7.4"
 
 [[FixedPointNumbers]]
 git-tree-sha1 = "d14a6fa5890ea3a7e5dcab6811114f132fec2b4b"
 uuid = "53c48c17-4a7d-5ca2-90c5-79b7896eea93"
 version = "0.6.1"
 
 [[ForwardDiff]]
-deps = ["CommonSubexpressions", "DiffResults", "DiffRules", "InteractiveUtils", "LinearAlgebra", "NaNMath", "Random", "SparseArrays", "SpecialFunctions", "StaticArrays", "Test"]
-git-tree-sha1 = "4c4d727f1b7e0092134fabfab6396b8945c1ea5b"
+deps = ["CommonSubexpressions", "DiffResults", "DiffRules", "NaNMath", "Random", "SpecialFunctions", "StaticArrays"]
+git-tree-sha1 = "adf88d6da1f0294058f38295becf8807986bb7d0"
 uuid = "f6369f11-7733-5829-9624-2563aa707210"
-version = "0.10.3"
+version = "0.10.5"
 
 [[GPUArrays]]
-deps = ["Adapt", "FFTW", "FillArrays", "LinearAlgebra", "Printf", "Random", "Serialization", "StaticArrays", "Test"]
-git-tree-sha1 = "77e27264276fe97a7e7fb928bf8999a145abc018"
+deps = ["Adapt", "FFTW", "FillArrays", "LinearAlgebra", "Printf", "Random", "Serialization", "Test"]
+git-tree-sha1 = "8d74ced24448c52b539a23d107bd2424ee139c0f"
 uuid = "0c68f7d7-f131-5f86-a1c3-88cf8149b2d7"
-version = "1.0.3"
+version = "1.0.4"
 
 [[IRTools]]
 deps = ["InteractiveUtils", "MacroTools", "Test"]
@@ -200,9 +198,9 @@ version = "0.7.2"
 
 [[LLVM]]
 deps = ["CEnum", "Libdl", "Printf", "Unicode"]
-git-tree-sha1 = "4a05f742837779a00bd8c9a18da6817367c4245d"
+git-tree-sha1 = "74fe444b8b6d1ac01d639b2f9eaf395bcc2e24fc"
 uuid = "929cbde3-209d-540e-8aea-75f648917ca0"
-version = "1.3.0"
+version = "1.3.2"
 
 [[LibGit2]]
 uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"
@@ -234,9 +232,10 @@ uuid = "e89f7d12-3494-54d1-8411-f7d8b9ae1f27"
 version = "0.5.0"
 
 [[Missings]]
-git-tree-sha1 = "29858ce6c8ae629cf2d733bffa329619a1c843d0"
+deps = ["DataAPI"]
+git-tree-sha1 = "de0a5ce9e5289f27df672ffabef4d1e5861247d5"
 uuid = "e1d29d7a-bbdc-5cf2-9ac0-f12de2c33e28"
-version = "0.4.2"
+version = "0.4.3"
 
 [[Mmap]]
 uuid = "a63ad114-7e13-5084-954f-fe012c677804"
@@ -261,12 +260,12 @@ version = "1.1.0"
 
 [[Parsers]]
 deps = ["Dates", "Test"]
-git-tree-sha1 = "ef0af6c8601db18c282d092ccbd2f01f3f0cd70b"
+git-tree-sha1 = "c56ecb484f286639f161e712b8311f5ab77e8d32"
 uuid = "69de0a69-1ddd-5017-9359-2bf0b02dc9f0"
-version = "0.3.7"
+version = "0.3.8"
 
 [[Pkg]]
-deps = ["Dates", "LibGit2", "Markdown", "Printf", "REPL", "Random", "SHA", "UUIDs"]
+deps = ["Dates", "LibGit2", "Libdl", "Logging", "Markdown", "Printf", "REPL", "Random", "SHA", "UUIDs"]
 uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 
 [[Printf]]
@@ -328,9 +327,9 @@ version = "0.8.0"
 
 [[StaticArrays]]
 deps = ["LinearAlgebra", "Random", "Statistics"]
-git-tree-sha1 = "db23bbf50064c582b6f2b9b043c8e7e98ea8c0c6"
+git-tree-sha1 = "1e9c5d89cba8047d518f1ffef432906ef1a3e8bd"
 uuid = "90137ffa-7385-5640-81b9-e52037218182"
-version = "0.11.0"
+version = "0.12.0"
 
 [[Statistics]]
 deps = ["LinearAlgebra", "SparseArrays"]

Project.toml

@@ -5,7 +5,7 @@ version = "0.9.0"
 [deps]
 AbstractTrees = "1520ce14-60c1-5f80-bbc7-55ef81b5835c"
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
-CUDAapi = "3895d2a7-ec45-59b8-82bb-cfc6a382f9b3"
+CUDAdrv = "c5f51814-7f29-56b8-a69c-e4d8f6be1fde"
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
 Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"
 CuArrays = "3a865a2d-5b23-5a0f-bc46-62713ec82fae"
@@ -26,11 +26,11 @@ Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
 ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [compat]
-CUDAapi = "1.1"
-CuArrays = "1.2"
+CUDAdrv = "4.0.1"
+CuArrays = "1.4"
 NNlib = "0.6"
 Zygote = "0.3"
-julia = "1"
+julia = "1.2"
 
 [extras]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"

src/Flux.jl

@@ -21,19 +21,9 @@ export SGD, Descent, ADAM, Momentum, Nesterov, RMSProp,
   ADAMW, RADAM, InvDecay, ExpDecay, WeightDecay
 
 
-allow_cuda() = parse(Bool, get(ENV, "FLUX_USE_CUDA", "true"))
-const consider_cuda = allow_cuda()
-
-using CUDAapi
-const use_cuda = consider_cuda && has_cuda()
-if use_cuda
-  try
-    using CuArrays
-  catch
-    @error "CUDA is installed, but CuArrays.jl fails to load. Please fix the issue, or load Flux with FLUX_USE_CUDA=false."
-    rethrow()
-  end
-end
+ENV["CUDA_INIT_SILENT"] = true
+using CUDAdrv, CuArrays
+const use_cuda = Ref(false)
 
 include("utils.jl")
 include("onehot.jl")
@@ -49,21 +39,23 @@ include("data/Data.jl")
 
 include("deprecations.jl")
 
-if use_cuda
-  include("cuda/cuda.jl")
-end
-
 function __init__()
-  # check if the GPU usage conditions that are baked in the precompilation image
-  # match the current situation, and force a recompilation if not.
-  if (allow_cuda() != consider_cuda) || (consider_cuda && has_cuda() != use_cuda)
-      cachefile = if VERSION >= v"1.3-"
-          Base.compilecache_path(Base.PkgId(Flux))
-      else
-          abspath(DEPOT_PATH[1], Base.cache_file_entry(Base.PkgId(Flux)))
-      end
-      rm(cachefile)
-      error("Your set-up changed, and Flux.jl needs to be reconfigured. Please load the package again.")
+  if !CUDAdrv.functional()
+    @warn "CUDA available, but CUDAdrv.jl failed to load"
+  elseif length(devices()) == 0
+    @warn "CUDA available, but no GPU detected"
+  elseif !CuArrays.functional()
+    @warn "CUDA GPU available, but CuArrays.jl failed to load"
+  else
+    use_cuda[] = true
+
+    # FIXME: this functionality should be conditional at run time by checking `use_cuda`
+    #        (or even better, get moved to CuArrays.jl as much as possible)
+    if CuArrays.has_cudnn()
+      include(joinpath(@__DIR__, "cuda/cuda.jl"))
+    else
+      @warn "CUDA GPU available, but CuArrays.jl did not find libcudnn. Some functionality will not be available."
+    end
   end
 end
 

src/cuda/cuda.jl

@@ -2,12 +2,8 @@ module CUDA
 
 using ..CuArrays
 
-if CuArrays.libcudnn !== nothing  # TODO: use CuArrays.has_cudnn()
-  using CuArrays: CUDNN
-  include("curnn.jl")
-  include("cudnn.jl")
-else
-  @warn "CUDNN is not installed, some functionality will not be available."
-end
+using CuArrays: CUDNN
+include("curnn.jl")
+include("cudnn.jl")
 
 end

src/functor.jl

@@ -73,13 +73,7 @@ end
 
 cpu(m) = fmap(x -> adapt(Array, x), m)
 
-const gpu_adaptor = if use_cuda
-  CuArrays.cu
-else
-  identity
-end
-
-gpu(x) = fmap(gpu_adaptor, x)
+gpu(x) = use_cuda[] ? fmap(CuArrays.cu, x) : x
 
 # Precision