Nothing
tar_test("keras and clustermq with main storage and retrieval", {
# Requires Python TensorFlow and Keras.
# Cannot test inside the RStudio IDE.
skip_on_os("windows")
skip_if_not_installed("clustermq")
skip_if_not_installed("keras")
tar_runtime$fun <- "tar_make_clustermq"
on.exit(tar_runtime$fun <- NULL)
tar_script({
tar_option_set(packages = "keras")
options(clustermq.scheduler = "multiprocess")
f <- function() {
model <- keras::keras_model_sequential() %>%
keras::layer_conv_2d(
filters = 32,
kernel_size = c(3, 3),
activation = "relu",
input_shape = c(28, 28, 1)
) %>%
keras::layer_conv_2d(
filters = 64,
kernel_size = c(3, 3),
activation = "relu"
) %>%
keras::layer_max_pooling_2d(pool_size = c(2, 2)) %>%
keras::layer_dropout(rate = 0.25) %>%
keras::layer_flatten() %>%
keras::layer_dense(units = 128, activation = "relu") %>%
keras::layer_dropout(rate = 0.5) %>%
keras::layer_dense(units = 10, activation = "softmax")
keras::compile(
model,
loss = "categorical_crossentropy",
optimizer = keras::optimizer_adadelta(),
metrics = "accuracy"
)
model
}
list(
tar_target_raw(
name = "abc",
command = quote(f()),
format = "keras"
)
)
})
tar_make_clustermq()
expect_true(inherits(tar_read(abc), "keras.engine.training.Model"))
})
tar_test("keras and clustermq with worker storage and retrieval", {
# Requires Python TensorFlow and Keras.
# Cannot test inside the RStudio IDE.
skip_on_os("windows")
skip_if_not_installed("clustermq")
skip_if_not_installed("keras")
tar_runtime$fun <- "tar_make_clustermq"
on.exit(tar_runtime$fun <- NULL)
tar_script({
tar_option_set(packages = "keras")
options(clustermq.scheduler = "multiprocess")
f <- function() {
model <- keras::keras_model_sequential() %>%
keras::layer_conv_2d(
filters = 32,
kernel_size = c(3, 3),
activation = "relu",
input_shape = c(28, 28, 1)
) %>%
keras::layer_conv_2d(
filters = 64,
kernel_size = c(3, 3),
activation = "relu"
) %>%
keras::layer_max_pooling_2d(pool_size = c(2, 2)) %>%
keras::layer_dropout(rate = 0.25) %>%
keras::layer_flatten() %>%
keras::layer_dense(units = 128, activation = "relu") %>%
keras::layer_dropout(rate = 0.5) %>%
keras::layer_dense(units = 10, activation = "softmax")
keras::compile(
model,
loss = "categorical_crossentropy",
optimizer = keras::optimizer_adadelta(),
metrics = "accuracy"
)
model
}
list(
tar_target_raw(
name = "abc",
command = quote(f()),
format = "keras",
storage = "worker",
retrieval = "worker"
)
)
})
tar_make_clustermq()
expect_true(inherits(tar_read(abc), "keras.engine.training.Model"))
})
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