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Add Apple Metal backend support #103

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Add Apple Metal backend support #103

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16 changes: 16 additions & 0 deletions llama-tornado
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ from enum import Enum
class Backend(Enum):
OPENCL = "opencl"
PTX = "ptx"
METAL = "metal"


class LlamaRunner:
Expand Down Expand Up @@ -168,6 +169,14 @@ class LlamaRunner:
"ALL-SYSTEM,jdk.incubator.vector,tornado.runtime,tornado.annotation,tornado.drivers.common,tornado.drivers.ptx",
]
)
elif args.backend == Backend.METAL:
module_config.extend(
[
f"@{self.tornado_sdk}/etc/exportLists/metal-exports",
"--add-modules",
"ALL-SYSTEM,jdk.incubator.vector,tornado.runtime,tornado.annotation,tornado.drivers.common,tornado.drivers.metal",
]
)

module_config.extend(
[
Expand Down Expand Up @@ -410,6 +419,13 @@ def create_parser() -> argparse.ArgumentParser:
const=Backend.PTX,
help="Use PTX/CUDA backend",
)
hw_group.add_argument(
"--metal",
dest="backend",
action="store_const",
const=Backend.METAL,
help="Use Apple Metal backend (macOS only, requires TornadoVM 4.0+)",
)
hw_group.add_argument("--gpu-memory", default="14GB", help="GPU memory allocation")
hw_group.add_argument("--heap-min", default="20g", help="Minimum JVM heap size")
hw_group.add_argument("--heap-max", default="20g", help="Maximum JVM heap size")
Expand Down
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