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utils.py
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utils.py
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import numpy as np
from tvm import relay
def softmax(x):
"""Compute softmax values for each sets of scores in x."""
e_x = np.exp(x - np.max(x))
return e_x / e_x.sum()
def get_network(name, batch_size, layout="NHWC", dtype="float32"):
"""Get the symbol definition and random weight of a network"""
# auto-scheduler prefers NHWC layout
if layout == "NHWC":
image_shape = (224, 224, 3)
elif layout == "NCHW":
image_shape = (3, 224, 224)
else:
raise ValueError("Invalid layout: " + layout)
input_shape = (batch_size,) + image_shape
output_shape = (batch_size, 1000)
if name.startswith("resnet-"):
n_layer = int(name.split("-")[1])
mod, params = relay.testing.resnet.get_workload(
num_layers=n_layer,
batch_size=batch_size,
layout=layout,
dtype=dtype,
image_shape=image_shape)
else:
raise ValueError("Invalid model request.")
return mod, params, input_shape, output_shape