mirror of
https://github.com/ml-explore/mlx.git
synced 2025-11-04 18:48:15 +08:00
118 lines
3.7 KiB
Python
118 lines
3.7 KiB
Python
# Copyright © 2023 Apple Inc.
|
|
|
|
import unittest
|
|
|
|
import mlx.core as mx
|
|
import mlx_tests
|
|
|
|
|
|
# Don't inherit from MLXTestCase to avoid call to setUp
|
|
class TestDefaultDevice(unittest.TestCase):
|
|
def test_mlx_default_device(self):
|
|
device = mx.default_device()
|
|
if mx.metal.is_available():
|
|
self.assertEqual(device, mx.Device(mx.gpu))
|
|
self.assertEqual(str(device), "Device(gpu, 0)")
|
|
self.assertEqual(device, mx.gpu)
|
|
self.assertEqual(mx.gpu, device)
|
|
else:
|
|
self.assertEqual(device.type, mx.Device(mx.cpu))
|
|
with self.assertRaises(ValueError):
|
|
mx.set_default_device(mx.gpu)
|
|
|
|
|
|
class TestDevice(mlx_tests.MLXTestCase):
|
|
def test_device(self):
|
|
device = mx.default_device()
|
|
|
|
cpu = mx.Device(mx.cpu)
|
|
mx.set_default_device(cpu)
|
|
self.assertEqual(mx.default_device(), cpu)
|
|
self.assertEqual(str(cpu), "Device(cpu, 0)")
|
|
|
|
mx.set_default_device(mx.cpu)
|
|
self.assertEqual(mx.default_device(), mx.cpu)
|
|
self.assertEqual(cpu, mx.cpu)
|
|
self.assertEqual(mx.cpu, cpu)
|
|
|
|
# Restore device
|
|
mx.set_default_device(device)
|
|
|
|
@unittest.skipIf(not mx.metal.is_available(), "Metal is not available")
|
|
def test_device_context(self):
|
|
default = mx.default_device()
|
|
diff = mx.cpu if default == mx.gpu else mx.gpu
|
|
self.assertNotEqual(default, diff)
|
|
with mx.stream(diff):
|
|
a = mx.add(mx.zeros((2, 2)), mx.ones((2, 2)))
|
|
mx.eval(a)
|
|
self.assertEqual(mx.default_device(), diff)
|
|
self.assertEqual(mx.default_device(), default)
|
|
|
|
def test_op_on_device(self):
|
|
x = mx.array(1.0)
|
|
y = mx.array(1.0)
|
|
|
|
a = mx.add(x, y, stream=None)
|
|
b = mx.add(x, y, stream=mx.default_device())
|
|
self.assertEqual(a.item(), b.item())
|
|
b = mx.add(x, y, stream=mx.cpu)
|
|
self.assertEqual(a.item(), b.item())
|
|
|
|
if mx.metal.is_available():
|
|
b = mx.add(x, y, stream=mx.gpu)
|
|
self.assertEqual(a.item(), b.item())
|
|
|
|
|
|
class TestStream(mlx_tests.MLXTestCase):
|
|
def test_stream(self):
|
|
s1 = mx.default_stream(mx.default_device())
|
|
self.assertEqual(s1.device, mx.default_device())
|
|
|
|
s2 = mx.new_stream(mx.default_device())
|
|
self.assertEqual(s2.device, mx.default_device())
|
|
self.assertNotEqual(s1, s2)
|
|
|
|
if mx.metal.is_available():
|
|
s_gpu = mx.default_stream(mx.gpu)
|
|
self.assertEqual(s_gpu.device, mx.gpu)
|
|
else:
|
|
with self.assertRaises(ValueError):
|
|
mx.default_stream(mx.gpu)
|
|
|
|
s_cpu = mx.default_stream(mx.cpu)
|
|
self.assertEqual(s_cpu.device, mx.cpu)
|
|
|
|
s_cpu = mx.new_stream(mx.cpu)
|
|
self.assertEqual(s_cpu.device, mx.cpu)
|
|
|
|
if mx.metal.is_available():
|
|
s_gpu = mx.new_stream(mx.gpu)
|
|
self.assertEqual(s_gpu.device, mx.gpu)
|
|
else:
|
|
with self.assertRaises(ValueError):
|
|
mx.new_stream(mx.gpu)
|
|
|
|
def test_op_on_stream(self):
|
|
x = mx.array(1.0)
|
|
y = mx.array(1.0)
|
|
|
|
a = mx.add(x, y, stream=mx.default_stream(mx.default_device()))
|
|
|
|
if mx.metal.is_available():
|
|
b = mx.add(x, y, stream=mx.default_stream(mx.gpu))
|
|
self.assertEqual(a.item(), b.item())
|
|
s_gpu = mx.new_stream(mx.gpu)
|
|
b = mx.add(x, y, stream=s_gpu)
|
|
self.assertEqual(a.item(), b.item())
|
|
|
|
b = mx.add(x, y, stream=mx.default_stream(mx.cpu))
|
|
self.assertEqual(a.item(), b.item())
|
|
s_cpu = mx.new_stream(mx.cpu)
|
|
b = mx.add(x, y, stream=s_cpu)
|
|
self.assertEqual(a.item(), b.item())
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|