1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
{
buildPythonPackage,
pythonAtLeast,
fetchFromGitHub,
setuptools,
lib,
libjpeg,
numba,
opencv4,
pandas,
pkg-config,
pytorch-pfn-extras,
terminaltables,
tqdm,
pytestCheckHook,
assertpy,
psutil,
torchvision,
webdataset,
}:
buildPythonPackage rec {
pname = "ffcv";
version = "1.0.0";
pyproject = true;
# version 1.0.0 uses distutils which was removed in Python 3.12
disabled = pythonAtLeast "3.12";
src = fetchFromGitHub {
owner = "libffcv";
repo = pname;
rev = "refs/tags/v${version}";
hash = "sha256-L2mwGFivq/gtAw+1D6U2jbW6VxYgetHX7OUrjwyybqE=";
};
# See https://github.com/libffcv/ffcv/issues/159.
postPatch = ''
substituteInPlace setup.py \
--replace-fail "'assertpy'," "" \
--replace-fail "'fastargs'," "" \
--replace-fail "'opencv-python'," "" \
--replace-fail "'psutil'," "" \
'';
build-system = [ setuptools ];
nativeBuildInputs = [ pkg-config ];
buildInputs = [ libjpeg ];
propagatedBuildInputs = [
opencv4
numba
pandas
pytorch-pfn-extras
terminaltables
tqdm
];
pythonImportsCheck = [ "ffcv" ];
# C/C++ python modules are only in the installed output and not in the build
# directory. Since tests are run from the build directory python prefers to
# import the local module first which does not contain the C/C++ python
# modules and results in an import error. By changing the directory to
# 'tests' the build directory is no long available and python will import
# from the installed output in the nix store which does contain the C/C++
# python modules.
preCheck = ''
cd tests
'';
nativeCheckInputs = [
assertpy
psutil
pytestCheckHook
torchvision
webdataset
];
disabledTestPaths = [
# Tests require network access and do not work in the sandbox
"test_augmentations.py"
# Occasionally causes the testing phase to hang
"test_basic_pipeline.py"
];
disabledTests = [
# Tests require network access and do not work in the sandbox
"test_cifar_subset"
# Requires CUDA which is unfree and unfree packages are not built by Hydra
"test_cuda"
"test_gpu_normalization"
# torch.multiprocessing.spawn.ProcessRaisedException
"test_traversal_sequential_2"
"test_traversal_sequential_3"
"test_traversal_sequential_4"
"test_traversal_random_2"
"test_traversal_random_3"
"test_traversal_random_4"
"test_traversal_sequential_distributed_with_indices"
"test_traversal_random_distributed_with_indices"
];
meta = {
description = "FFCV: Fast Forward Computer Vision";
homepage = "https://ffcv.io";
license = lib.licenses.asl20;
maintainers = with lib.maintainers; [
samuela
djacu
];
};
}
|
