gpu
zeus.device.gpu
Abstraction layer for GPU devices.
The main function of this module is get_gpus
,
which returns a GPU Manager object specific to the platform.
Important
In theory, any NVIDIA GPU would be supported. On the other hand, for AMD GPUs, we currently only support ROCm 6.1 and later.
Getting handles to GPUs
The main API exported from this module is the get_gpus
function. It returns either
NVIDIAGPUs
or AMDGPUs
depending on the platform.
from zeus.device import get_gpus
gpus = get_gpus()
Calling GPU management APIs
GPU management library APIs are mapped to methods on GPU
.
For example, for NVIDIA GPUs (which uses pynvml
), you would have called:
handle = pynvml.nvmlDeviceGetHandleByIndex(gpu_index)
constraints = pynvml.nvmlDeviceGetPowerManagementLimitConstraints(handle)
With the Zeus GPU abstraction layer, you would now call:
gpus = get_gpus() # returns an NVIDIAGPUs object
constraints = gpus.getPowerManagementLimitConstraints(gpu_index)
Non-blocking calls
Some implementations of GPU
support non-blocking calls to setters.
If non-blocking calls are not supported, setting block
will be ignored and the call will block.
Check GPU.supports_non_blocking
to see if non-blocking calls are supported.
Note that non-blocking calls will not raise exceptions even if the call fails.
Currently, only ZeusdNVIDIAGPU
supports non-blocking calls
to methods that set the GPU's power limit, GPU frequency, memory frequency, and persistence mode.
This is possible because the Zeus daemon supports a block: bool
parameter in HTTP requests,
which can be set to False
to make the call return immediately without checking the result.
Error handling
The following exceptions are defined in this module:
ZeusGPUInitError
: Base class for initialization errors.ZeusGPUInvalidArgError
: Error for invalid arguments.ZeusGPUNotSupportedError
: Error for unsupported GPUs.ZeusGPUNoPermissionError
: Error for permission issues.ZeusGPUAlreadyInitializedError
: Error for reinitialization.ZeusGPUNotFoundError
: Error for missing GPUs.ZeusGPUInsufficientSizeError
: Error for insufficient buffer size.ZeusGPUInsufficientPowerError
: Error for insufficient power.ZeusGPUDriverNotLoadedError
: Error for driver issues.ZeusGPUTimeoutError
: Error for timeout issues.ZeusGPUIRQError
: Error for IRQ issues.ZeusGPULibraryNotFoundError
: Error for missing libraries.ZeusGPUFunctionNotFoundError
: Error for missing functions.ZeusGPUCorruptedInfoROMError
: Error for corrupted info ROM.ZeusGPULostError
: Error for lost GPUs.ZeusGPUResetRequiredError
: Error for GPUs requiring reset.ZeusGPUOperatingSystemError
: Error for OS issues.ZeusGPULibRMVersionMismatchError
: Error for library version mismatch.ZeusGPUMemoryError
: Error for memory issues.ZeusGPUUnknownError
: Error for unknown issues.
ZeusBaseGPUError
Bases: ZeusBaseError
Zeus base GPU exception class.
Source code in zeus/device/exception.py
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__init__
__init__(message)
Source code in zeus/device/exception.py
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GPU
Bases: ABC
Abstract base class for managing one GPU.
For each method, child classes should call into vendor-specific GPU management libraries (e.g., NVML for NVIDIA GPUs).
Source code in zeus/device/gpu/common.py
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supports_nonblocking_setters
abstractmethod
property
supports_nonblocking_setters
Return True if the GPU object supports non-blocking configuration setters.
__init__
__init__(gpu_index)
Source code in zeus/device/gpu/common.py
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getName
abstractmethod
getName()
Return the name of the GPU model.
Source code in zeus/device/gpu/common.py
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getPowerManagementLimitConstraints
abstractmethod
getPowerManagementLimitConstraints()
Return the minimum and maximum power management limits. Units: mW.
Source code in zeus/device/gpu/common.py
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setPowerManagementLimit
abstractmethod
setPowerManagementLimit(power_limit_mw, _block=True)
Set the GPU's power management limit. Unit: mW.
Source code in zeus/device/gpu/common.py
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resetPowerManagementLimit
abstractmethod
resetPowerManagementLimit(_block=True)
Reset the GPU's power management limit to the default value.
Source code in zeus/device/gpu/common.py
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setPersistenceMode
abstractmethod
setPersistenceMode(enabled, _block=True)
Set persistence mode.
Source code in zeus/device/gpu/common.py
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getSupportedMemoryClocks
abstractmethod
getSupportedMemoryClocks()
Return a list of supported memory clock frequencies. Units: MHz.
Source code in zeus/device/gpu/common.py
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setMemoryLockedClocks
abstractmethod
setMemoryLockedClocks(
min_clock_mhz, max_clock_mhz, _block=True
)
Lock the memory clock to a specified range. Units: MHz.
Source code in zeus/device/gpu/common.py
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resetMemoryLockedClocks
abstractmethod
resetMemoryLockedClocks(_block=True)
Reset the locked memory clocks to the default.
Source code in zeus/device/gpu/common.py
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getSupportedGraphicsClocks
abstractmethod
getSupportedGraphicsClocks(memory_clock_mhz=None)
Return a list of supported graphics clock frequencies. Units: MHz.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
memory_clock_mhz |
int | None
|
Memory clock frequency to use. Some GPUs have different supported graphics clocks depending on the memory clock. |
None
|
Source code in zeus/device/gpu/common.py
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setGpuLockedClocks
abstractmethod
setGpuLockedClocks(
min_clock_mhz, max_clock_mhz, _block=True
)
Lock the GPU clock to a specified range. Units: MHz.
Source code in zeus/device/gpu/common.py
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resetGpuLockedClocks
abstractmethod
resetGpuLockedClocks(_block=True)
Reset the locked GPU clocks to the default.
Source code in zeus/device/gpu/common.py
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getInstantPowerUsage
abstractmethod
getInstantPowerUsage()
Return the current power draw of the GPU. Units: mW.
Source code in zeus/device/gpu/common.py
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supportsGetTotalEnergyConsumption
abstractmethod
supportsGetTotalEnergyConsumption()
Check if the GPU supports retrieving total energy consumption.
Source code in zeus/device/gpu/common.py
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getTotalEnergyConsumption
abstractmethod
getTotalEnergyConsumption()
Return the total energy consumption of the GPU since driver load. Units: mJ.
Source code in zeus/device/gpu/common.py
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EmptyGPUs
Bases: GPUs
A concrete class implementing the GPUs abstract base class, but representing an empty collection of GPUs.
This class is used to represent a scenario where no GPUs are available or detected. Any method call attempting to interact with a GPU will raise a ValueError.
Source code in zeus/device/gpu/common.py
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gpus
property
gpus
Return an empty list as no GPUs are being tracked.
__init__
__init__(ensure_homogeneous=False)
Since this class represents an empty collection of GPUs, no actual initialization of GPU objects is performed.
Source code in zeus/device/gpu/common.py
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__del__
__del__()
Clean up any resources if necessary.
As this class represents an empty collection of GPUs, no specific cleanup is required.
Source code in zeus/device/gpu/common.py
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__len__
__len__()
Return 0, indicating no GPUs are being tracked.
Source code in zeus/device/gpu/common.py
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_ensure_homogeneous
_ensure_homogeneous()
Raise a ValueError as no GPUs are being tracked.
Source code in zeus/device/gpu/common.py
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_warn_sys_admin
_warn_sys_admin()
Raise a ValueError as no GPUs are being tracked.
Source code in zeus/device/gpu/common.py
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getName
getName(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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getPowerManagementLimitConstraints
getPowerManagementLimitConstraints(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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setPowerManagementLimit
setPowerManagementLimit(
gpu_index, power_limit_mw, _block=True
)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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resetPowerManagementLimit
resetPowerManagementLimit(gpu_index, _block=True)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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setPersistenceMode
setPersistenceMode(gpu_index, enabled, _block=True)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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getSupportedMemoryClocks
getSupportedMemoryClocks(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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setMemoryLockedClocks
setMemoryLockedClocks(
gpu_index, min_clock_mhz, max_clock_mhz, _block=True
)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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resetMemoryLockedClocks
resetMemoryLockedClocks(gpu_index, _block=True)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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getSupportedGraphicsClocks
getSupportedGraphicsClocks(
gpu_index, memory_clock_mhz=None
)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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setGpuLockedClocks
setGpuLockedClocks(
gpu_index, min_clock_mhz, max_clock_mhz, _block=True
)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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resetGpuLockedClocks
resetGpuLockedClocks(gpu_index, _block=True)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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getInstantPowerUsage
getInstantPowerUsage(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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supportsGetTotalEnergyConsumption
supportsGetTotalEnergyConsumption(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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getTotalEnergyConsumption
getTotalEnergyConsumption(gpu_index)
Raise a ValueError as no GPUs are available.
Source code in zeus/device/gpu/common.py
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ZeusGPUInvalidArgError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Invalid Argument.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUNotSupportedError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Not Supported Operation on GPU.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUNoPermissionError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps No Permission to perform GPU operation.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUAlreadyInitializedError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Already Initialized GPU.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUNotFoundError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Not Found GPU.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUInsufficientSizeError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Insufficient Size.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUInsufficientPowerError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Insufficient Power.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUDriverNotLoadedError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Driver Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUTimeoutError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Timeout Error.
Source code in zeus/device/gpu/common.py
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|
__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUIRQError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps IRQ Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPULibraryNotFoundError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Library Not Found Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUFunctionNotFoundError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Function Not Found Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUCorruptedInfoROMError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Corrupted Info ROM Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPULostError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Lost GPU Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUResetRequiredError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Reset Required Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUOperatingSystemError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Operating System Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPULibRMVersionMismatchError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps LibRM Version Mismatch Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUMemoryError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Insufficient Memory Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUUnknownError
Bases: ZeusBaseGPUError
Zeus GPU exception that wraps Unknown Error.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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ZeusGPUHeterogeneousError
Bases: ZeusBaseGPUError
Exception for when GPUs are not homogeneous.
Source code in zeus/device/gpu/common.py
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__init__
__init__(message)
Source code in zeus/device/gpu/common.py
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get_logger
get_logger(name, level=logging.INFO, propagate=False)
Get a logger with the given name with some formatting configs.
Source code in zeus/utils/logging.py
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has_sys_admin
cached
has_sys_admin()
Check if the current process has SYS_ADMIN
capabilities.
Source code in zeus/device/common.py
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get_gpus
get_gpus(ensure_homogeneous=False)
Initialize and return a singleton object for GPU management.
This function returns a GPU management object that aims to abstract
the underlying GPU vendor and their specific monitoring library
(pynvml for NVIDIA GPUs and amdsmi for AMD GPUs). Management APIs
are mapped to methods on the returned GPUs
object.
GPU availability is checked in the following order:
- NVIDIA GPUs using
pynvml
- AMD GPUs using
amdsmi
- If both are unavailable, a
ZeusGPUInitError
is raised.
Parameters:
Name | Type | Description | Default |
---|---|---|---|
ensure_homogeneous |
bool
|
If True, ensures that all tracked GPUs have the same name. |
False
|
Source code in zeus/device/gpu/__init__.py
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