def run_block_sparsity(sess, mask, config):
block_params = calc_block_params(config.xsize, config.bsize, config.ksize, config.strides,
config.padding)
ind = convert_mask_to_indices_custom(mask, block_params, config.tol, config.avgpool)
ind_val, bin_val = sess.run([ind.active_block_indices, ind.bin_counts])
block_density = bin_val[0] / float(ind_val.shape[0])
return 1 - block_density
def gather_custom(x, mask, bsize, ksize, strides, padding):
x_shape = [int(ss) for ss in x.get_shape()]
block_params = calc_block_params(x_shape, bsize, ksize, strides, padding)
indices = convert_mask_to_indices_custom(mask, block_params, 0.0)
p = sbnet_module.sparse_gather(x,
indices.bin_counts,
indices.active_block_indices,
bsize=block_params.bsize,
boffset=block_params.boffset,
bstride=block_params.bstrides)
return p, indices
def _build_conv(mask, config, x_init, ind_init, bin_init, n_repeat=N_REPEAT):
"""Builds a computation graph for a single convolution."""
wnp = np.random.uniform(-1, 1, config.ksize) # filter is RSCK
w = tf.constant(wnp, dtype=tf.float32)
# AP: Tensorflow doesn't support KCRS from my investigation
#wt = tf.constant(np.transpose(wnp, [3, 2, 0, 1]), dtype=tf.float32) # transpose to KCRS
xs = []
ys = []
if config.is_sparse:
with tf.control_dependencies([mask]):
dt0 = cuda_timer_start_op("my_timer")
block_params = calc_block_params(config.xsize, config.bsize,
config.ksize, config.strides,
config.padding)
ind = convert_mask_to_indices_custom(mask, block_params,
config.tol, config.avgpool)
for _ in six.moves.xrange(n_repeat):
x_ = tf.Variable(
x_init
) # no need to transpose here since gather/scatter transpose
with tf.control_dependencies(ys + [dt0]):
y_ = _sparse_conv2d_custom_with_mask(x_, w, block_params,
config.strides, ind_init,
bin_init)
xs.append(x_)
ys.append(y_)
else:
ind = None
for _ in six.moves.xrange(n_repeat):
x_ = tf.Variable(tf.transpose(x_init, [0, 3, 1, 2])) # NCHW
with tf.control_dependencies([x_]):
dt0 = cuda_timer_start_op("my_timer")
with tf.control_dependencies(ys + [dt0]):
y_ = tf.nn.conv2d(x_,
w,
config.strides,
config.padding,
data_format='NCHW')
xs.append(x_)
ys.append(y_)
with tf.control_dependencies(ys):
dt = cuda_timer_end_op("my_timer")
with tf.control_dependencies([dt]):
y = tf.no_op()
return y, ind, dt
def _test_sparse_scatter(self, mask, x, w, out_shape, bsize, ksize,
strides, padding):
with tf.Session() as sess:
x = tf.constant(x)
w = tf.constant(w)
p, blk_indices = gather_tf(x, mask, bsize, ksize, strides, padding)
block_params = calc_block_params([int(ss) for ss in x.get_shape()],
bsize, ksize, strides, padding)
ind_custom = convert_mask_to_indices_custom(
mask, block_params, 0.0)
p_custom = sbnet_module.sparse_gather(
x,
ind_custom.bin_counts,
ind_custom.active_block_indices,
bsize=block_params.bsize,
bstride=block_params.bstrides,
boffset=block_params.boffset)
p_shape = [
int(x.get_shape()[0]), block_params.bsize[0],
block_params.bsize[1],
int(x.get_shape()[3])
]
q = tf.nn.conv2d(p, w, strides, 'VALID')
q_custom = tf.nn.conv2d(p_custom, w, strides, 'VALID')
y_tf = scatter_tf(q, blk_indices, out_shape)
q_shape = calc_out_size_4d_np(p_shape, ksize, strides, 'VALID')
bsize_out = [q_shape[1], q_shape[2]]
boffset = [0, 0]
y_custom = scatter_custom(q_custom, ind_custom, out_shape,
bsize_out, boffset,
block_params.bstrides)
p1, p2, q_val, y1, y2, active, num = sess.run([
p, p_custom, q, y_tf, y_custom,
ind_custom.active_block_indices, ind_custom.bin_counts
])
num = num[0]
sortIdx = active[:num].argsort()
p2 = p2[sortIdx]
# Make sure p's are the same.
np.testing.assert_array_equal(p1, p2)
# Check y's are the same.
np.testing.assert_array_equal(y1, y2)
def _test_sparse_scatter(self, mask, x, w, out_shape, bsize, ksize,
strides, padding):
with tf.Session() as sess:
x = tf.constant(x)
w = tf.constant(w)
p, blk_indices = gather_tf(x, mask, bsize, ksize, strides, padding)
block_params = calc_block_params([int(ss) for ss in x.get_shape()],
bsize, ksize, strides, padding)
ind_custom = convert_mask_to_indices_custom(
mask, block_params, 0.0)
p_custom = sbnet_module.sparse_gather(
x,
ind_custom.bin_counts,
ind_custom.active_block_indices,
dynamic_bsize=tf.constant(block_params.bsize, tf.int32),
dynamic_bstride=tf.constant(block_params.bstrides, tf.int32),
dynamic_boffset=tf.constant(block_params.boffset, tf.int32))
p_shape = [
int(x.get_shape()[0]), block_params.bsize[0],
block_params.bsize[1],
int(x.get_shape()[3])
]
q = tf.nn.conv2d(p, w, strides, 'VALID')
q_custom = tf.nn.conv2d(p_custom, w, strides, 'VALID')
y_tf = scatter_tf(q, blk_indices, out_shape)
q_shape = calc_out_size_4d_np(p_shape, ksize, strides, 'VALID')
bsize_out = [q_shape[1], q_shape[2]]
boffset = [0, 0]
y_custom = scatter_custom(q_custom, ind_custom, out_shape,
bsize_out, boffset,
block_params.bstrides)
p1, p2, q_val, y1, y2, active, num = sess.run([
p, p_custom, q, y_tf, y_custom,
ind_custom.active_block_indices, ind_custom.bin_counts
])
# Make sure p's are the same.
l1 = tuple([tuple(x) for x in p1.reshape(-1, 3).tolist()])
l2 = tuple([tuple(x) for x in p2.reshape(-1, 3).tolist()])
np.testing.assert_array_equal(set(l1), set(l2))
# Check y's are the same.
np.testing.assert_array_equal(y1, y2)
def _test_sparse_conv2d_custom_with_mask(self,
mask,
bsize,
ksize,
strides,
padding,
y_exp,
use_var=True,
transpose=False):
# Currently we don't care about VALID convolution.
assert padding == 'SAME', 'We do not support VALID conv at the moment.'
mask_ = tf.constant(mask)
blk_params = calc_block_params(
list(mask.shape) + [ksize[2]], bsize, ksize, strides, padding)
ind = convert_mask_to_indices_custom(mask_, blk_params, 0.)
xval = np.ones([1, mask.shape[1], mask.shape[2], 1], dtype=np.float32)
x = tf.constant(xval)
if use_var:
x = tf.Variable(x)
w = tf.constant(np.ones(ksize, dtype=np.float32))
y = sparse_conv2d_custom(x,
w,
ind,
blk_params,
strides,
use_var=use_var,
transpose=transpose)
# Manually paste the input tensor in the expected output.
y_exp = (y_exp == 0).astype(
np.float32) * xval[:, :y_exp.shape[1], :y_exp.shape[2], :] + y_exp
with self.test_session() as sess:
if use_var:
sess.run(tf.variables_initializer([x]))
y_act = y.eval()
# print('===============')
# print('Actual')
# print(y_act.reshape([y_act.shape[1], y_act.shape[2]]))
# print('Expected')
# print(y_exp.reshape([y_exp.shape[1], y_exp.shape[2]]))
# print(y_exp.shape)
self.assertEqual(y_act.size, y_exp.size)
np.testing.assert_array_equal(y_act.reshape(y_exp.shape), y_exp)
def _test_reduce_mask(self, mask, bsize, ksize, strides, padding):
with tf.Session():
mask = tf.constant(mask)
indices = convert_mask_to_indices(mask, bsize, ksize, strides,
padding, 0.0)
indices_val = indices.eval()
x_shape = [1] + [int(ss) for ss in mask.get_shape()[1:]] + [1]
block_params = calc_block_params(x_shape, bsize, ksize, strides,
padding)
indices_custom = convert_mask_to_indices_custom(
mask, block_params, 0.0)
activeBlockIndicesResult = indices_custom.active_block_indices.eval(
)
binCountsResult = indices_custom.bin_counts.eval()
clippedResults = activeBlockIndicesResult[:binCountsResult[0], :]
clippedResults = to_tuples(clippedResults.tolist())
refResults = to_tuples(indices_val.tolist())
np.testing.assert_equal(set(clippedResults), set(refResults))
def _test_reduce_mask(self, mask, bsize, ksize, strides, padding):
with tf.Session():
mask = tf.constant(mask)
indices = convert_mask_to_indices(mask, bsize, ksize, strides,
padding, 0.0)
x_shape = [1] + [int(ss) for ss in mask.get_shape()[1:]] + [1]
block_params = calc_block_params(x_shape, bsize, ksize, strides,
padding)
indices_custom = convert_mask_to_indices_custom(
mask, block_params, 0.0)
activeBlockIndicesResult = indices_custom.active_block_indices.eval(
)
binCountsResult = indices_custom.bin_counts.eval()
activeBlockIndicesResult = activeBlockIndicesResult[:
binCountsResult[
0]]
sortIdx = activeBlockIndicesResult.argsort()
activeBlockIndicesResult = activeBlockIndicesResult[sortIdx]
clippedResults = np.copy(activeBlockIndicesResult.view(np.uint16))
clippedResults = clippedResults.reshape([-1, 4])[:, [2, 1, 0]]
indices_val = indices.eval()
np.testing.assert_array_equal(indices_val, clippedResults)
def _test_sparse_conv2d_gradient(self, mask, bsize, ksize, strides, padding, transpose=False):
# Currently we don't care about VALID convolution.
assert padding == 'SAME', 'We do not support VALID conv at the moment.'
use_var = False
mask_ = tf.constant(mask)
blk_params = calc_block_params(
list(mask.shape) + [ksize[2]], bsize, ksize, strides, padding)
ind = convert_mask_to_indices_custom(mask_, blk_params, 0.)
ReduceMask = namedtuple('ReduceMask', ['active_block_indices', 'bin_counts'])
ind.active_block_indices.set_shape([27, 3])
ind.bin_counts.set_shape([1])
ind_var = tf.Variable(ind.active_block_indices, trainable=False)
bin_var = tf.Variable(ind.bin_counts, trainable=False)
ind_fixed = ReduceMask(active_block_indices=ind_var, bin_counts=bin_var)
rnd = np.random.RandomState(0)
batch_size = 1
xval = rnd.uniform(-0.1, 0.1, [mask.shape[0], mask.shape[1], mask.shape[2],
ksize[2]]).astype(np.float32)
x = tf.constant(xval)
wval = rnd.uniform(-1, 1, ksize).astype(np.float32)
w = tf.constant(wval)
y = sparse_conv2d_custom(
x, w, ind_fixed, blk_params, strides, use_var=use_var, transpose=transpose)
print('')
print('-' * 55)
print('Sparse Conv Layer')
print('{:30s} {:>10s} {:>10s}'.format('name', 'grad angle', 'abs err'))
with self.test_session() as sess:
sess.run(tf.global_variables_initializer())
yval = y.eval()
err = compute_gradient_angle(x, xval.shape, y, yval.shape, x_init_value=xval)
err2 = compute_gradient_abs_error(x, xval.shape, y, yval.shape, x_init_value=xval)
print('{:30s} {:>10.3f} {:>10.3f}'.format('x', err, err2))
err = compute_gradient_angle(w, wval.shape, y, yval.shape, x_init_value=wval)
err = compute_gradient_abs_error(w, wval.shape, y, yval.shape, x_init_value=wval)
print('{:30s} {:>10.3f} {:>10.3f}'.format('w', err, err2))