Accera v1.2 Reference

accera.Array.deferred_layout(cache)

Specifies the layout for a Role.CONST array based on a Cache. For more details, see Deferred layout of constant arrays

Arguments

argument	description	type/default
cache	The cache that defines the layout to set.	accera.Cache

Examples

Create a constant 16x16 array without specifying a layout. Later on, define its layout based on a cache:

import numpy as np
import accera as acc

matrix = np.random.rand(16, 16)

# Create a constant array with a deferred layout
A = acc.Array(role=acc.Role.CONST, data=matrix, layout=acc.Array.Layout.DEFERRED)
B = Array(role=Role.INPUT_OUTPUT, element_type=ScalarType.float32, shape=matrix.shape)

nest = Nest(shape=matrix.shape)
i, j = nest.get_indices()

@nest.iteration_logic
def_():
    B[i, j] += A[i, j]

plan = nest.create_plan()

# create a cache for the constant array
AA = plan.cache(A, i, layout=acc.Array.Layout.FIRST_MAJOR, thrifty=True)

# update the constant array's layout based on the cache
A.deferred_layout(cache=AA)

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Last update: 2023-04-17