Selector¶
-
class
sisl.
Selector
(routines=None, ordered=False)[source]¶ Base class for implementing a selector of class routines
This class should contain a list of routines and may then be used to always return the best performant routine.
This is done on a per-class basis where this class should initially determine which routine is the best performing one and then always return that one.
Attributes: - routines : list of func
this is a list of functions that will be selected from.
- ordered : bool
If False a simple selection of the most performant one will be chosen. If True, it will check the routines in order and once one of the routines is less performant it will choose from the setof runned routines.
Attributes
best
ordered
performances
routines
Methods
__init__
([routines, ordered])Initialize self. append
(routine)Prepends a new routine to the selector next
()Choose the next routine that requires performance analysis prepend
(routine)Prepends a new routine to the selector reset
()Reset the performance table to redo the performance checks select_best
([routine])Update the best
routine, if applicablestart
()Start the performance profiler stop
(start)Stop the performance profiler -
append
(routine)[source]¶ Prepends a new routine to the selector
Parameters: - routine : func
the new routine to be tested in the selector
-
best
¶
-
next
()[source]¶ Choose the next routine that requires performance analysis
Returns: - int, func :
a tuple with the int specifying the routine index. func is the routine that is to be runned.
-
ordered
¶
-
performances
¶
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prepend
(routine)[source]¶ Prepends a new routine to the selector
Parameters: - routine : func
the new routine to be tested in the selector
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routines
¶
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select_best
(routine=None)[source]¶ Update the
best
routine, if applicableUpdate the selector to choose the best method. If not all routines have been carried through, then no best routine will be selected (unless self.ordered is True).
By passing a routine as an argument that given routine will by default be the chosen best algorithm.
Parameters: - routine : func or str
If None is passed (the default) it will select the best default routine based on the stored performances. If, however, not all performance values has been created no routine will be selected.
If passing a func that function will be chosen as the best method
-
start
()[source]¶ Start the performance profiler
This routine should return an initial state value. The difference between stop() - start() should yield a performance identifier which may be used to control the used algorithm.
A large performance identifier results in the use of the routine.
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stop
(start)[source]¶ Stop the performance profiler
This routine should return an initial state value. The difference between stop() - start() should yield a performance identifier which may be used to control the used algorithm.
A large performance identifier results in the use of the routine.
Parameters: - start : float
the output of the start() routine to convert to actual performance identifier