nlcpy.venode.VENode

class nlcpy.venode.VENode(int pid, int lid, int serial_id, bool phys, bool connect=True)

Class that represents VE node.

Parameters

pidint: Physical id.
lidint: Logical id.
serial_idint: Serial id of VE.
physbool: Whether pass into the argument of veo_proc_create() for physical id or not.
connect: bool: Whether call veo_proc_create() when calling constructor or not.

Note

The instance of this class can be retrieved from nlcpy.venode.VE()

Methods

__enter__(self)

__exit__(self, *args)

apply(self)

Sets this VE to current active VE and change a top of stacked VE ids to this id.

Note that combination usage of this method and with context manager shows different behaviours from use().

Examples

>>> import nlcpy
>>> ve0 = nlcpy.venode.VE(0)
>>> ve1 = nlcpy.venode.VE(1)
>>> _ = ve1.apply()
>>> # Current VE is 1.
>>> with ve0:
...     pass
...     # Current VE is 0.
...     # When exiting the context manager, the current VE is set a top of
...     # stacked VE ids (In this case, the top is VE 1).
>>> # Current VE is 1.

connect(self): Establish connection to VE.

disconnect(self): Disconnect to VE (NotImplemented yet).

synchronize(self)

Synchronizes to this VE.

See also

nlcpy.request.flush: Flushes stacked requests on VH to specified VE.

use(self)

Sets this VE to current active VE.

Note that combination usage of this method and with context manager is discouraged.

Examples

>>> import nlcpy
>>> ve0 = nlcpy.venode.VE(0)
>>> ve1 = nlcpy.venode.VE(1)
>>> _ = ve1.use()
>>> # Current VE is 1.
>>> with ve0:
...     pass
...     # Current VE is 0.
...     # When exiting the context manager, the current VE is set a top of
...     # stacked VE ids (In this case, the top is VE 0).
>>> # Current VE is 0.

__eq__(value, /): Return self==value.

__ne__(value, /): Return self!=value.

__lt__(value, /): Return self<value.

__le__(value, /): Return self<=value.

__gt__(value, /): Return self>value.

__ge__(value, /): Return self>=value.

Attributes

arch

connected

ctx

id

lib

lib_prof

libpath

lid

meminfo

ncore

pid

pool

proc

request_manager

serial_id

status

Gets the VE status.

Examples

>>> import nlcpy
>>> from pprint import pprint
>>> pprint(nlcpy.venode.VE(0).status)  
{'arch': 3,
 'fast_math': False,
 'lid': 0,
 'main_mem_used': 5389680640,
 'main_total_memsize': 103079215104,
 'mempool_capacity': 1073741824,
 'mempool_remainder': 1073741824,
 'mempool_used': 0,
 'ncore': 16,
 'offload_timing': 'lazy',
 'pid': 0,
 'running_request_on_VE': 0,
 'stacked_request_on_VH': 0}