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metal : support for Swift (#3078)

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* Metal support for Swift

* update

* add a toggle for arm/arm64

* set minimum versions for all platforms

* update to use newLibraryWithURL

* bump version

Co-authored-by: Jhen-Jie Hong <iainst0409@gmail.com>

---------

Co-authored-by: Jhen-Jie Hong <iainst0409@gmail.com>
This commit is contained in:
kchro3 2023-09-09 02:12:10 -07:00 committed by GitHub
parent 4fd5477955
commit 21ac3a1503
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 38 additions and 8 deletions
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32
Package.swift
View File

@ -2,8 +2,30 @@
import PackageDescription
#if arch(arm) || arch(arm64)
let platforms: [SupportedPlatform]? = [
.macOS(.v11),
.iOS(.v14),
.watchOS(.v4),
.tvOS(.v14)
]
let exclude: [String] = []
let additionalSources: [String] = ["ggml-metal.m"]
let additionalSettings: [CSetting] = [
.unsafeFlags(["-fno-objc-arc"]),
.define("GGML_SWIFT"),
.define("GGML_USE_METAL")
]
#else
let platforms: [SupportedPlatform]? = nil
let exclude: [String] = ["ggml-metal.metal"]
let additionalSources: [String] = []
let additionalSettings: [CSetting] = []
#endif
let package = Package(
name: "llama",
platforms: platforms,
products: [
.library(name: "llama", targets: ["llama"]),
],
@ -11,23 +33,23 @@ let package = Package(
.target(
name: "llama",
path: ".",
exclude: ["ggml-metal.metal"],
exclude: exclude,
sources: [
"ggml.c",
"llama.cpp",
"ggml-alloc.c",
"k_quants.c"
],
"k_quants.c",
] + additionalSources,
publicHeadersPath: "spm-headers",
cSettings: [
.unsafeFlags(["-Wno-shorten-64-to-32"]),
.define("GGML_USE_K_QUANTS"),
.define("GGML_USE_ACCELERATE")
],
] + additionalSettings,
linkerSettings: [
.linkedFramework("Accelerate")
]
),
)
],
cxxLanguageStandard: .cxx11
)

14
ggml-metal.m
View File

@ -144,12 +144,20 @@ struct ggml_metal_context * ggml_metal_init(int n_cb) {
ctx->d_queue = dispatch_queue_create("llama.cpp", DISPATCH_QUEUE_CONCURRENT);
#if 0
// compile from source string and show compile log
#ifdef GGML_SWIFT
// load the default.metallib file
{
NSError * error = nil;
ctx->library = [ctx->device newLibraryWithSource:msl_library_source options:nil error:&error];
NSBundle * bundle = [NSBundle bundleForClass:[GGMLMetalClass class]];
NSString * llamaBundlePath = [bundle pathForResource:@"llama_llama" ofType:@"bundle"];
NSBundle * llamaBundle = [NSBundle bundleWithPath:llamaBundlePath];
NSString * libPath = [llamaBundle pathForResource:@"default" ofType:@"metallib"];
NSURL * libURL = [NSURL fileURLWithPath:libPath];
// Load the metallib file into a Metal library
ctx->library = [ctx->device newLibraryWithURL:libURL error:&error];
if (error) {
metal_printf("%s: error: %s\n", __func__, [[error description] UTF8String]);
return NULL;