py-torch: add M1 GPU support (#31283)

1 files changed, 3 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/py-torch/package.py b/var/spack/repos/builtin/packages/py-torch/package.py
index 9c7abe41e7..c4883b95eb 100644
--- a/var/spack/repos/builtin/packages/py-torch/package.py
+++ b/var/spack/repos/builtin/packages/py-torch/package.py
@@ -6,6 +6,7 @@
 import os
 import sys
 
+from spack.operating_systems.mac_os import macos_version
 from spack.package import *
 
 
@@ -59,6 +60,7 @@ class PyTorch(PythonPackage, CudaPackage):
     variant('kineto', default=True, description='Use Kineto profiling library', when='@1.8:')
     variant('magma', default=not is_darwin, description='Use MAGMA', when='+cuda')
     variant('metal', default=is_darwin, description='Use Metal for Caffe2 iOS build')
+    variant('mps', default=is_darwin and macos_version() >= Version('12.3'), description='Use MPS for macOS build', when='@1.12: platform=darwin')
     variant('nccl', default=True, description='Use NCCL', when='+cuda platform=linux')
     variant('nccl', default=True, description='Use NCCL', when='+cuda platform=cray')
     variant('nccl', default=True, description='Use NCCL', when='+rocm platform=linux')
@@ -373,6 +375,7 @@ class PyTorch(PythonPackage, CudaPackage):
         enable_or_disable('kineto')
         enable_or_disable('magma')
         enable_or_disable('metal')
+        enable_or_disable('mps')
         enable_or_disable('breakpad')
 
         enable_or_disable('nccl')