Added device kwarg to jnp.linspace and jnp.asarray

jax/_src/lax/lax.py

@@ -508,7 +508,7 @@ def convert_element_type(operand: ArrayLike,
   Similar to a C++ `static_cast`.
 
   Args:
-    operand: an array or scalar value to be cast
+    operand: an array or scalar value to be cast.
     new_dtype: a NumPy dtype representing the target type.
 
   Returns:

jax/_src/numpy/lax_numpy.py

@@ -3351,7 +3351,10 @@ def _supports_buffer_protocol(obj):
 
 deprecations.register("jax-numpy-array-none")
 
-@util.implements(np.array, lax_description=_ARRAY_DOC)
+@util.implements(np.array, lax_description=_ARRAY_DOC, extra_params="""
+device: (optional) :class:`~jax.Device` or :class:`~jax.sharding.Sharding`
+  to which the created array will be committed.
+""")
 def array(object: Any, dtype: DTypeLike | None = None, copy: bool = True,
           order: str | None = "K", ndmin: int = 0,
           *, device: xc.Device | Sharding | None = None) -> Array:
@@ -3453,7 +3456,6 @@ def array(object: Any, dtype: DTypeLike | None = None, copy: bool = True,
     out = np.array(object) if copy else np.asarray(object)
   else:
     raise TypeError(f"Unexpected input type for array: {type(object)}")
-
   out_array: Array = lax_internal._convert_element_type(
       out, dtype, weak_type=weak_type, sharding=sharding)
   if ndmin > ndim(out_array):
@@ -3544,9 +3546,13 @@ def astype(x: ArrayLike, dtype: DTypeLike | None,
   return _array_copy(result) if copy else result
 
 
-@util.implements(np.asarray, lax_description=_ARRAY_DOC)
+@util.implements(np.asarray, lax_description=_ARRAY_DOC, extra_params="""
+device: (optional) :class:`~jax.Device` or :class:`~jax.sharding.Sharding`
+  to which the created array will be committed.
+""")
 def asarray(a: Any, dtype: DTypeLike | None = None, order: str | None = None,
-            *, copy: bool | None = None) -> Array:
+            *, copy: bool | None = None,
+            device: xc.Device | Sharding | None = None) -> Array:
   # For copy=False, the array API specifies that we raise a ValueError if the input supports
   # the buffer protocol but a copy is required. Since array() supports the buffer protocol
   # via numpy, this is only the case when the default device is not 'cpu'
@@ -3559,7 +3565,7 @@ def asarray(a: Any, dtype: DTypeLike | None = None, order: str | None = None,
   dtypes.check_user_dtype_supported(dtype, "asarray")
   if dtype is not None:
     dtype = dtypes.canonicalize_dtype(dtype, allow_extended_dtype=True)  # type: ignore[assignment]
-  return array(a, dtype=dtype, copy=bool(copy), order=order)
+  return array(a, dtype=dtype, copy=bool(copy), order=order, device=device)
 
 
 @util.implements(np.copy, lax_description=_ARRAY_DOC)
@@ -4329,36 +4335,45 @@ def _arange_dynamic(
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: bool = True, retstep: Literal[False] = False,
              dtype: DTypeLike | None = None,
-             axis: int = 0) -> Array: ...
+             axis: int = 0,
+             *, device: xc.Device | Sharding | None = None) -> Array: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int,
              endpoint: bool, retstep: Literal[True],
              dtype: DTypeLike | None = None,
-             axis: int = 0) -> tuple[Array, Array]: ...
+             axis: int = 0,
+             *, device: xc.Device | Sharding | None = None) -> tuple[Array, Array]: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: bool = True, *, retstep: Literal[True],
              dtype: DTypeLike | None = None,
-             axis: int = 0) -> tuple[Array, Array]: ...
+             axis: int = 0,
+             device: xc.Device | Sharding | None = None) -> tuple[Array, Array]: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: bool = True, retstep: bool = False,
              dtype: DTypeLike | None = None,
-             axis: int = 0) -> Array | tuple[Array, Array]: ...
-@util.implements(np.linspace)
+             axis: int = 0,
+             *, device: xc.Device | Sharding | None = None) -> Array | tuple[Array, Array]: ...
+@util.implements(np.linspace, extra_params="""
+device: (optional) :class:`~jax.Device` or :class:`~jax.sharding.Sharding`
+  to which the created array will be committed.
+""")
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: bool = True, retstep: bool = False,
              dtype: DTypeLike | None = None,
-             axis: int = 0) -> Array | tuple[Array, Array]:
+             axis: int = 0,
+             *, device: xc.Device | Sharding | None = None) -> Array | tuple[Array, Array]:
   num = core.concrete_dim_or_error(num, "'num' argument of jnp.linspace")
   axis = core.concrete_or_error(operator.index, axis, "'axis' argument of jnp.linspace")
-  return _linspace(start, stop, num, endpoint, retstep, dtype, axis)
+  return _linspace(start, stop, num, endpoint, retstep, dtype, axis, device=device)
 
-@partial(jit, static_argnames=('num', 'endpoint', 'retstep', 'dtype', 'axis'))
+@partial(jit, static_argnames=('num', 'endpoint', 'retstep', 'dtype', 'axis', 'device'))
 def _linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
               endpoint: bool = True, retstep: bool = False,
               dtype: DTypeLike | None = None,
-              axis: int = 0) -> Array | tuple[Array, Array]:
+              axis: int = 0,
+              *, device: xc.Device | Sharding | None = None) -> Array | tuple[Array, Array]:
   """Implementation of linspace differentiable in start and stop args."""
   dtypes.check_user_dtype_supported(dtype, "linspace")
   if num < 0:
@@ -4406,10 +4421,9 @@ def _linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
   if issubdtype(dtype, integer) and not issubdtype(out.dtype, integer):
     out = lax.floor(out)
 
-  if retstep:
-    return lax.convert_element_type(out, dtype), delta
-  else:
-    return lax.convert_element_type(out, dtype)
+  sharding = canonicalize_device_to_sharding(device)
+  result = lax_internal._convert_element_type(out, dtype, sharding=sharding)
+  return (result, delta) if retstep else result
 
 
 @util.implements(np.logspace)

jax/experimental/array_api/__init__.py

@@ -52,6 +52,7 @@
     argmax as argmax,
     argmin as argmin,
     argsort as argsort,
+    asarray as asarray,
     asin as asin,
     asinh as asinh,
     atan as atan,
@@ -109,6 +110,7 @@
     isnan as isnan,
     less as less,
     less_equal as less_equal,
+    linspace as linspace,
     log as log,
     log10 as log10,
     log1p as log1p,
@@ -187,11 +189,6 @@
     reshape as reshape,
 )
 
-from jax.experimental.array_api._creation_functions import (
-    asarray as asarray,
-    linspace as linspace,
-)
-
 from jax.experimental.array_api._data_type_functions import (
     astype as astype,
 )

jax/numpy/__init__.pyi

@@ -114,7 +114,8 @@ def array_split(
 array_str = _np.array_str
 def asarray(
     a: Any, dtype: DTypeLike | None = ..., order: str | None = ...,
-    *, copy: builtins.bool | None = ...
+    *, copy: builtins.bool | None = ...,
+    device: _Device | _Sharding | None = ...,
 ) -> Array: ...
 def asin(x: ArrayLike, /) -> Array: ...
 def asinh(x: ArrayLike, /) -> Array: ...
@@ -523,22 +524,26 @@ def lexsort(keys: Sequence[ArrayLike], axis: int = ...) -> Array: ...
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: builtins.bool = True, retstep: Literal[False] = False,
              dtype: DTypeLike | None = ...,
-             axis: int = 0) -> Array: ...
+             axis: int = 0,
+             *, device: _Device | _Sharding | None = ...) -> Array: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int,
              endpoint: builtins.bool, retstep: Literal[True],
              dtype: DTypeLike | None = ...,
-             axis: int = 0) -> tuple[Array, Array]: ...
+             axis: int = 0,
+             *, device: _Device | _Sharding | None = ...) -> tuple[Array, Array]: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: builtins.bool = True, *, retstep: Literal[True],
              dtype: DTypeLike | None = ...,
-             axis: int = 0) -> tuple[Array, Array]: ...
+             axis: int = 0,
+             device: _Device | _Sharding | None = ...) -> tuple[Array, Array]: ...
 @overload
 def linspace(start: ArrayLike, stop: ArrayLike, num: int = 50,
              endpoint: builtins.bool = True, retstep: builtins.bool = False,
              dtype: DTypeLike | None = ...,
-             axis: int = 0) -> Array | tuple[Array, Array]: ...
+             axis: int = 0,
+             *, device: _Device | _Sharding | None = ...) -> Union[Array, tuple[Array, Array]]: ...
 
 def load(*args: Any, **kwargs: Any) -> Array: ...
 def log(x: ArrayLike, /) -> Array: ...

tests/lax_numpy_test.py

@@ -2998,25 +2998,37 @@ def testArrayCreationWithSharding(self, func, shape, dtype):
       func=[
         lambda dtype, device: jnp.arange(5, dtype=dtype, device=device),
         lambda dtype, device: jnp.eye(5, 6, dtype=dtype, device=device),
+        lambda dtype, device: jnp.linspace(5, 6, 7, dtype=dtype, device=device),
+        lambda dtype, device: jnp.linspace(5, 6, 7, retstep=True, dtype=dtype, device=device),
+        lambda dtype, device: jnp.array([1, 2, 3, 4, 5], dtype=dtype, device=device),
       ],
       dtype=default_dtypes,
   )
-  def testArangeEyeWithDevice(self, func, dtype):
+  def testArangeEyeLinspaceArrayWithDevice(self, func, dtype):
     device = jax.devices()[-1]
-    out = func(dtype=dtype, device=device)
-    self.assertEqual(out.devices(), {device})
+    output = func(dtype=dtype, device=device)
+    if isinstance(output, tuple):
+      self.assertEqual(output[0].devices(), {device})
+    else:
+      self.assertEqual(output.devices(), {device})
 
   @jtu.sample_product(
       func=[
         lambda dtype, device: jnp.arange(5, dtype=dtype, device=device),
         lambda dtype, device: jnp.eye(5, 6, dtype=dtype, device=device),
+        lambda dtype, device: jnp.linspace(5, 6, 7, dtype=dtype, device=device),
+        lambda dtype, device: jnp.linspace(5, 6, 7, retstep=True, dtype=dtype, device=device),
+        lambda dtype, device: jnp.array([1, 2, 3, 4, 5], dtype=dtype, device=device),
       ],
       dtype=default_dtypes,
   )
-  def testArangeEyeWithSharding(self, func, dtype):
+  def testArangeEyeLinspaceArrayWithSharding(self, func, dtype):
     sharding = SingleDeviceSharding(jax.devices()[-1])
-    out = func(dtype=dtype, device=sharding)
-    self.assertEqual(out.sharding, sharding)
+    output = func(dtype=dtype, device=sharding)
+    if isinstance(output, tuple):
+      self.assertEqual(output[0].sharding, sharding)
+    else:
+      self.assertEqual(output.sharding, sharding)
 
   @jtu.sample_product(
       func=[jnp.empty_like, jnp.zeros_like, jnp.ones_like, jnp.full_like],
@@ -6066,7 +6078,6 @@ def testWrappedSignaturesMatch(self):
       'histogram': ['normed'],
       'histogram2d': ['normed'],
       'histogramdd': ['normed'],
-      'linspace': ['device'],
       'nanpercentile': ['weights'],
       'nanquantile': ['weights'],
       'nanstd': ['correction', 'mean'],