Source code for grunnur.platform
from __future__ import annotations
from typing import Any, NamedTuple, Optional, List, Sequence, TYPE_CHECKING
from .adapter_base import PlatformAdapter
from .api import API
from .utils import string_matches_masks
if TYPE_CHECKING: # pragma: no cover
from .device import Device
[docs]class PlatformFilter(NamedTuple):
"""
A set of filters for platform discovery.
"""
include_masks: Optional[List[str]] = None
"""A list of strings (treated as regexes), one of which must match the platform name."""
exclude_masks: Optional[List[str]] = None
"""A list of strings (treated as regexes), neither of which must match the platform name."""
[docs]class Platform:
"""
A generalized GPGPU platform.
"""
api: "API"
"""The :py:class:`~grunnur.API` object this platform belongs to."""
name: str
"""The platform's name."""
vendor: str
"""The platform's vendor."""
version: str
"""The platform's version."""
[docs] @classmethod
def all(cls, api: API) -> List["Platform"]:
"""
Returns a list of platforms available for the given API.
:param api: the API to search in.
"""
return [
Platform.from_index(api, platform_idx)
for platform_idx in range(api._api_adapter.platform_count)
]
[docs] @classmethod
def all_filtered(
cls,
api: API,
filter: Optional[PlatformFilter] = None,
) -> List["Platform"]:
"""
Returns a list of all platforms satisfying the given criteria in the given API.
If ``filter`` is not provided, returns all the platforms.
"""
if filter is None:
return cls.all(api)
return [
platform
for platform in cls.all(api)
if string_matches_masks(
platform.name,
include_masks=filter.include_masks,
exclude_masks=filter.exclude_masks,
)
]
[docs] @classmethod
def from_backend_platform(cls, obj: Any) -> "Platform":
"""
Wraps a backend platform object into a Grunnur platform object.
"""
for api in API.all_available():
if api._api_adapter.isa_backend_platform(obj):
platform_adapter = api._api_adapter.make_platform_adapter(obj)
return cls(platform_adapter)
raise TypeError(f"{obj} was not recognized as a platform object by any available API")
[docs] @classmethod
def from_index(cls, api: API, platform_idx: int) -> "Platform":
"""
Creates a platform based on its index in the list returned by the API.
:param api: the API to search in.
:param platform_idx: the target platform's index.
"""
platform_adapter = api._api_adapter.get_platform_adapters()[platform_idx]
return cls(platform_adapter)
def __init__(self, platform_adapter: PlatformAdapter):
self.api = API(platform_adapter.api_adapter)
self._platform_adapter = platform_adapter
self.name = self._platform_adapter.name
self.shortcut = f"{self.api.shortcut},{platform_adapter.platform_idx}"
self.vendor = platform_adapter.vendor
self.version = platform_adapter.version
@property
def devices(self) -> List["Device"]:
"""
A list of this device's :py:class:`Device` objects.
"""
from .device import Device # avoiding circular imports
return Device.all(self)
def __eq__(self, other: Any) -> bool:
return (
type(self) == type(other)
and isinstance(other, Platform)
and self._platform_adapter == other._platform_adapter
)
def __hash__(self) -> int:
return hash((type(self), self._platform_adapter))
def __str__(self) -> str:
return f"platform({self.shortcut})"