forked from ggerganov/llama.cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
flake.nix
182 lines (167 loc) · 7.18 KB
/
flake.nix
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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
# The flake interface to llama.cpp's Nix expressions. The flake is used as a
# more discoverable entry-point, as well as a way to pin the dependencies and
# expose default outputs, including the outputs built by the CI.
# For more serious applications involving some kind of customization you may
# want to consider consuming the overlay, or instantiating `llamaPackages`
# directly:
#
# ```nix
# pkgs.callPackage ${llama-cpp-root}/.devops/nix/scope.nix { }`
# ```
# Cf. https://jade.fyi/blog/flakes-arent-real/ for a more detailed exposition
# of the relation between Nix and the Nix Flakes.
{
description = "Port of Facebook's LLaMA model in C/C++";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
flake-parts.url = "github:hercules-ci/flake-parts";
};
# There's an optional binary cache available. The details are below, but they're commented out.
#
# Why? The terrible experience of being prompted to accept them on every single Nix command run.
# Plus, there are warnings shown about not being a trusted user on a default Nix install
# if you *do* say yes to the prompts.
#
# This experience makes having `nixConfig` in a flake a persistent UX problem.
#
# To make use of the binary cache, please add the relevant settings to your `nix.conf`.
# It's located at `/etc/nix/nix.conf` on non-NixOS systems. On NixOS, adjust the `nix.settings`
# option in your NixOS configuration to add `extra-substituters` and `extra-trusted-public-keys`,
# as shown below.
#
# ```
# nixConfig = {
# extra-substituters = [
# # Populated by the CI in ggerganov/llama.cpp
# "https://llama-cpp.cachix.org"
#
# # A development cache for nixpkgs imported with `config.cudaSupport = true`.
# # Populated by https://hercules-ci.com/github/SomeoneSerge/nixpkgs-cuda-ci.
# # This lets one skip building e.g. the CUDA-enabled openmpi.
# # TODO: Replace once nix-community obtains an official one.
# "https://cuda-maintainers.cachix.org"
# ];
#
# # Verify these are the same keys as published on
# # - https://app.cachix.org/cache/llama-cpp
# # - https://app.cachix.org/cache/cuda-maintainers
# extra-trusted-public-keys = [
# "llama-cpp.cachix.org-1:H75X+w83wUKTIPSO1KWy9ADUrzThyGs8P5tmAbkWhQc="
# "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
# ];
# };
# ```
# For inspection, use `nix flake show github:ggerganov/llama.cpp` or the nix repl:
#
# ```bash
# ❯ nix repl
# nix-repl> :lf github:ggerganov/llama.cpp
# Added 13 variables.
# nix-repl> outputs.apps.x86_64-linux.quantize
# { program = "/nix/store/00000000000000000000000000000000-llama.cpp/bin/llama-quantize"; type = "app"; }
# ```
outputs =
{ self, flake-parts, ... }@inputs:
let
# We could include the git revisions in the package names but those would
# needlessly trigger rebuilds:
# llamaVersion = self.dirtyShortRev or self.shortRev;
# Nix already uses cryptographic hashes for versioning, so we'll just fix
# the fake semver for now:
llamaVersion = "0.0.0";
in
flake-parts.lib.mkFlake { inherit inputs; }
{
imports = [
.devops/nix/nixpkgs-instances.nix
.devops/nix/apps.nix
.devops/nix/devshells.nix
.devops/nix/jetson-support.nix
];
# An overlay can be used to have a more granular control over llama-cpp's
# dependencies and configuration, than that offered by the `.override`
# mechanism. Cf. https://nixos.org/manual/nixpkgs/stable/#chap-overlays.
#
# E.g. in a flake:
# ```
# { nixpkgs, llama-cpp, ... }:
# let pkgs = import nixpkgs {
# overlays = [ (llama-cpp.overlays.default) ];
# system = "aarch64-linux";
# config.allowUnfree = true;
# config.cudaSupport = true;
# config.cudaCapabilities = [ "7.2" ];
# config.cudaEnableForwardCompat = false;
# }; in {
# packages.aarch64-linux.llamaJetsonXavier = pkgs.llamaPackages.llama-cpp;
# }
# ```
#
# Cf. https://nixos.org/manual/nix/unstable/command-ref/new-cli/nix3-flake.html?highlight=flake#flake-format
flake.overlays.default = (
final: prev: {
llamaPackages = final.callPackage .devops/nix/scope.nix { inherit llamaVersion; };
inherit (final.llamaPackages) llama-cpp;
}
);
systems = [
"aarch64-darwin"
"aarch64-linux"
"x86_64-darwin" # x86_64-darwin isn't tested (and likely isn't relevant)
"x86_64-linux"
];
perSystem =
{
config,
lib,
system,
pkgs,
pkgsCuda,
pkgsRocm,
...
}:
{
# For standardised reproducible formatting with `nix fmt`
formatter = pkgs.nixfmt-rfc-style;
# Unlike `.#packages`, legacyPackages may contain values of
# arbitrary types (including nested attrsets) and may even throw
# exceptions. This attribute isn't recursed into by `nix flake
# show` either.
#
# You can add arbitrary scripts to `.devops/nix/scope.nix` and
# access them as `nix build .#llamaPackages.${scriptName}` using
# the same path you would with an overlay.
legacyPackages = {
llamaPackages = pkgs.callPackage .devops/nix/scope.nix { inherit llamaVersion; };
llamaPackagesWindows = pkgs.pkgsCross.mingwW64.callPackage .devops/nix/scope.nix { inherit llamaVersion; };
llamaPackagesCuda = pkgsCuda.callPackage .devops/nix/scope.nix { inherit llamaVersion; };
llamaPackagesRocm = pkgsRocm.callPackage .devops/nix/scope.nix { inherit llamaVersion; };
};
# We don't use the overlay here so as to avoid making too many instances of nixpkgs,
# cf. https://zimbatm.com/notes/1000-instances-of-nixpkgs
packages =
{
default = config.legacyPackages.llamaPackages.llama-cpp;
vulkan = config.packages.default.override { useVulkan = true; };
windows = config.legacyPackages.llamaPackagesWindows.llama-cpp;
}
// lib.optionalAttrs pkgs.stdenv.isLinux {
cuda = config.legacyPackages.llamaPackagesCuda.llama-cpp;
mpi-cpu = config.packages.default.override { useMpi = true; };
mpi-cuda = config.packages.default.override { useMpi = true; };
}
// lib.optionalAttrs (system == "x86_64-linux") {
rocm = config.legacyPackages.llamaPackagesRocm.llama-cpp;
};
# Packages exposed in `.#checks` will be built by the CI and by
# `nix flake check`.
#
# We could test all outputs e.g. as `checks = confg.packages`.
#
# TODO: Build more once https://github.com/ggerganov/llama.cpp/issues/6346 has been addressed
checks = {
inherit (config.packages) default vulkan;
};
};
};
}