dolfinx.common

General tools for timing and configuration.

Functions

timed(task)

Decorator for timing functions.

Classes

IndexMap(, order=, writable=False], ...)
Timer([name])	A timer can be used for timing tasks. The basic usage is::.

class dolfinx.common.IndexMap(self, comm: MPICommWrapper, local_size: int)

class dolfinx.common.IndexMap(self, comm: MPICommWrapper, local_size: int, ghosts: ndarray[dtype=int64, shape=(*), order='C', writable=False], ghost_owners: ndarray[dtype=int32, shape=(*), order='C', writable=False])

class dolfinx.common.IndexMap(self, comm: MPICommWrapper, local_size: int, dest_src: collections.abc.Sequence[ndarray[dtype=int32, shape=(*), order='C', writable=False]], ghosts: ndarray[dtype=int64, shape=(*), order='C', writable=False], ghost_owners: ndarray[dtype=int32, shape=(*), order='C', writable=False])

Bases: object

property comm

(self) -> MPICommWrapper

property ghosts

Return list of ghost indices

global_to_local

imbalance

Imbalance of the current IndexMap.

index_to_dest_ranks

property local_range

Range of indices owned by this map

local_to_global

property num_ghosts

(self) -> int

property owners

(self) -> numpy.ndarray[dtype=int32, shape=(*), writable=False]

property size_global

(self) -> int

property size_local

(self) -> int

class dolfinx.common.Timer(name: str | None = None)

Bases: object

A timer can be used for timing tasks. The basic usage is:

with Timer("Some costly operation"):
    costly_call_1()
    costly_call_2()

or:

with Timer() as t:
    costly_call_1()
    costly_call_2()
    print("Elapsed time so far: %s" % t.elapsed()[0])

The timer is started when entering context manager and timing ends when exiting it. It is also possible to start and stop a timer explicitly by:

t = Timer("Some costly operation")
t.start()
costly_call()
t.stop()

and retrieve timing data using:

t.elapsed()

Timings are stored globally (if task name is given) and may be printed using functions timing, timings, list_timings, dump_timings_to_xml, e.g.:

list_timings(comm, [TimingType.wall, TimingType.user])

elapsed()

resume()

start()

stop()

dolfinx.common.timed(task: str)

Decorator for timing functions.