Rename max_pool_2d to pool_2d and Pool for the DownsampleFactorMax

theano/sandbox/cuda/dnn.py

@@ -12,8 +12,8 @@ from theano.compile import optdb
 from theano.compile.ops import shape_i
 from theano.tensor.nnet import SoftmaxGrad
 from theano.tensor.nnet.abstract_conv import get_conv_output_shape
-from theano.tensor.signal.downsample import (
-    DownsampleFactorMax, MaxPoolGrad, AveragePoolGrad)
+from theano.tensor.signal.pool import (
+    Pool, MaxPoolGrad, AveragePoolGrad)
 from theano.sandbox.cuda.type import CudaNdarrayType
 
 from theano.sandbox.cuda import GpuOp
@@ -2299,11 +2299,11 @@ if True:
             return [dnn_pool(gpu_contiguous(img), ds, ds)]
 
     @register_opt('cudnn')
-    @local_optimizer([DownsampleFactorMax])
+    @local_optimizer([Pool])
     def local_pool_dnn_alternative(node):
         if not dnn_available():
             return
-        if isinstance(node.op, DownsampleFactorMax):
+        if isinstance(node.op, Pool):
             if not node.op.ignore_border:
                 return
             img, = node.inputs

theano/sandbox/cuda/opt.py

@@ -137,14 +137,14 @@ register_opt(name='local_gpu_reshape_chain')(
 # This is a partial list of CPU ops that can be in some circonstance
 # moved to the GPU. This list is used by an optimization.
 # Hopefully, we can keep this list up to date.
-import theano.tensor.signal.downsample
+import theano.tensor.signal.pool
 import theano.tensor.nnet.neighbours
 cpu_ops_moved_to_gpu = [
     tensor.blas.Dot22, tensor.blas.Dot22Scalar, tensor.blas.Gemm,
     tensor.blas.Gemv, tensor.blas.Ger, tensor.nnet.conv.ConvOp,
-    tensor.signal.downsample.DownsampleFactorMax,
-    tensor.signal.downsample.MaxPoolGrad,
-    tensor.signal.downsample.AveragePoolGrad,
+    tensor.signal.pool.Pool,
+    tensor.signal.pool.MaxPoolGrad,
+    tensor.signal.pool.AveragePoolGrad,
     theano.tensor.nnet.neighbours.Images2Neibs,
     tensor.nnet.CrossentropySoftmaxArgmax1HotWithBias,
     tensor.nnet.CrossentropySoftmax1HotWithBiasDx,
@@ -1848,13 +1848,13 @@ gpu_optimizer.register("convtransp3d_gemm", local_convtransp3d_gemm)
 
 
 # Pooling
-import theano.tensor.signal.downsample as downsample
+import theano.tensor.signal.pool as pool
 
 
 @register_opt()
-@local_optimizer([downsample.DownsampleFactorMax])
+@local_optimizer([pool.Pool])
 def local_gpu_downsample_factor_max(node):
-    if (isinstance(node.op, downsample.DownsampleFactorMax)
+    if (isinstance(node.op, pool.Pool)
         and node.op.ds == node.op.st):
 
         assert node.op.__props__ == ('ds', 'ignore_border', 'st', 'padding',
@@ -1868,9 +1868,9 @@ def local_gpu_downsample_factor_max(node):
 
 
 @register_opt()
-@local_optimizer([downsample.MaxPoolGrad])
+@local_optimizer([pool.MaxPoolGrad])
 def local_gpu_downsample_factor_max_grad(node):
-    if (isinstance(node.op, downsample.MaxPoolGrad) and
+    if (isinstance(node.op, pool.MaxPoolGrad) and
         node.op.ds == node.op.st):
 
         assert node.op.__props__ == ('ds', 'ignore_border', 'st', 'padding',
@@ -1890,9 +1890,9 @@ def local_gpu_downsample_factor_max_grad(node):
 
 
 @register_opt()
-@local_optimizer([downsample.DownsampleFactorMaxGradGrad])
+@local_optimizer([pool.DownsampleFactorMaxGradGrad])
 def local_gpu_downsample_factor_max_grad_grad(node):
-    if isinstance(node.op, downsample.DownsampleFactorMaxGradGrad):
+    if isinstance(node.op, pool.DownsampleFactorMaxGradGrad):
         assert node.op.__props__ == ('ds', 'ignore_border', 'st',
                                      'padding', 'mode')
         if node.op.padding != (0, 0) or node.op.mode != 'max':

theano/sandbox/cuda/tests/test_blas.py

@@ -16,7 +16,7 @@ if cuda_ndarray.cuda_available == False:
 
 import theano.sandbox.cuda as tcn
 
-from theano.tensor.signal.downsample import (DownsampleFactorMax,
+from theano.tensor.signal.pool import (Pool,
         DownsampleFactorMaxGrad, DownsampleFactorMaxGradGrad)
 
 import theano.compile.mode
@@ -280,7 +280,7 @@ class TestBlasStridesGpu(TestBlasStrides):
 
 if 0:
     # This is commented out because it doesn't make sense...
-    # tcn.blas has no op called DownsampleFactorMax
+    # tcn.blas has no op called Pool
     # tcn.blas has an op called GpuDownsampleFactorMax, but that op requires arguments that are
     # CudaNdarrayType variables... so rethink this test?
     def test_maxpool():
@@ -290,7 +290,7 @@ if 0:
                                          [[[[6, 8, 9], [ 16, 18, 19], [ 21, 23, 24]]]])]:
             for border, ret in [(True, r_true), (False, r_false)]:
                 ret = numpy.array(ret)
-                a = tcn.blas.DownsampleFactorMax((2, 2), border)
+                a = tcn.blas.Pool((2, 2), border)
                 dmatrix4 = tensor.TensorType("float32", (False, False, False, False))
                 b = dmatrix4()
                 f = pfunc([b], [a(b)], mode=mode_with_gpu)
@@ -347,7 +347,7 @@ def test_downsample():
                 continue
             for ignore_border in (True, False):
                 # print 'test_downsample', shp, ds, ignore_border
-                ds_op = DownsampleFactorMax(ds, ignore_border=ignore_border)
+                ds_op = Pool(ds, ignore_border=ignore_border)
 
                 a = tcn.shared_constructor(my_rand(*shp), 'a')
                 f = pfunc([], ds_op(tensor.as_tensor_variable(a)),
@@ -357,7 +357,7 @@ def test_downsample():
                 assert any([isinstance(node.op,
                                        tcn.blas.GpuDownsampleFactorMax)
                     for node in f.maker.fgraph.toposort()])
-                assert any([isinstance(node.op, DownsampleFactorMax)
+                assert any([isinstance(node.op, Pool)
                     for node in f2.maker.fgraph.toposort()])
                 assert numpy.allclose(f(), f2())
 

theano/sandbox/cuda/tests/test_dnn.py

@@ -9,8 +9,8 @@ from six import StringIO
 import theano.tensor as T
 import theano.tests.unittest_tools as utt
 from theano.sandbox.neighbours import images2neibs
-from theano.tensor.signal.downsample import max_pool_2d
-from theano.tensor.signal.downsample import MaxPoolGrad, AveragePoolGrad
+from theano.tensor.signal.pool import pool_2d
+from theano.tensor.signal.pool import MaxPoolGrad, AveragePoolGrad
 import theano.sandbox.cuda.dnn as dnn
 from theano.sandbox.cuda.basic_ops import GpuAllocEmpty, gpu_alloc_empty
 from theano.sandbox.cuda import float32_shared_constructor as shared
@@ -256,7 +256,7 @@ def test_pooling():
                     # Not implemented
                     continue
                 # We will check that the opt introduced it.
-                out1 = max_pool_2d(x, (ws, ws),
+                out1 = pool_2d(x, (ws, ws),
                                st=(stride, stride),
                                ignore_border=True,
                                padding=pad, mode=mode)
@@ -294,7 +294,7 @@ def test_pooling():
 
             # This test the CPU grad + opt + GPU implemtentation
             def fn(x):
-                return max_pool_2d(x, (ws, ws), ignore_border=True,
+                return pool_2d(x, (ws, ws), ignore_border=True,
                                padding=pad, mode=mode)
             theano.tests.unittest_tools.verify_grad(fn, [data],
                                                     cast_to_output_type=False,
@@ -325,7 +325,7 @@ def test_pooling():
             g_out = fg(data)
 
             # Compare again the CPU result
-            out = max_pool_2d(x, (ws, ws),
+            out = pool_2d(x, (ws, ws),
                           padding=pad,
                           ignore_border=True, mode=mode)
             fc = theano.function([x], theano.grad(out.sum(), x),
@@ -453,7 +453,7 @@ def test_pooling_opt():
 
     f = theano.function(
         [x],
-        max_pool_2d(x, ds=(2, 2), mode='average_inc_pad', ignore_border=True),
+        pool_2d(x, ds=(2, 2), mode='average_inc_pad', ignore_border=True),
         mode=mode_with_gpu)
 
     assert any([isinstance(n.op, cuda.dnn.GpuDnnPool)
@@ -463,7 +463,7 @@ def test_pooling_opt():
 
     f = theano.function(
         [x],
-        T.grad(max_pool_2d(x, ds=(2, 2), mode='average_inc_pad',
+        T.grad(pool_2d(x, ds=(2, 2), mode='average_inc_pad',
                        ignore_border=True).sum(), x),
         mode=mode_with_gpu.including("cudnn"))
 
@@ -618,7 +618,7 @@ def test_dnn_tag():
     try:
         f = theano.function(
             [x],
-            max_pool_2d(x, ds=(2, 2), ignore_border=True),
+            pool_2d(x, ds=(2, 2), ignore_border=True),
             mode=mode_with_gpu.including("cudnn"))
     except (AssertionError, RuntimeError):
         assert not cuda.dnn.dnn_available()

theano/sandbox/cuda/tests/test_mlp.py

@@ -14,7 +14,7 @@ from theano.compile.pfunc import pfunc
 from theano import tensor
 from theano import config
 import theano.tensor.nnet.conv as conv
-import theano.tensor.signal.downsample as downsample
+import theano.tensor.signal.pool as pool
 import theano.sandbox.cuda as tcn
 import theano.tests.unittest_tools as utt
 
@@ -372,7 +372,7 @@ def build_conv_nnet2_classif(use_gpu, isize, ksize, n_batch,
         (n_kern, logical_hid_shape[0] // 2, logical_hid_shape[1] // 2),
         shape_kern1[2:], n_kern1, n_batch, 1, 1, verbose=verbose, version=version)
 
-    ds_op = downsample.DownsampleFactorMax((2, 2), ignore_border=False)
+    ds_op = pool.Pool((2, 2), ignore_border=False)
     if downsample_ops:
         hid = tensor.tanh(ds_op(conv_op(x, w0) + b0.dimshuffle((0, 'x', 'x'))))
     else:
@@ -612,7 +612,7 @@ def test_lenet_32():  # CIFAR10 / Shapeset
 
 
 def test_lenet_32_long():  # CIFAR10 / Shapeset
-    # this tests the gradient of downsample on the GPU,
+    # this tests the gradient of pool on the GPU,
     # which does not recieve specific testing
     cmp_run_conv_nnet2_classif(seed, 32, 5, 30, n_train=50,
                                ignore_error=ignore_error, gpu_only=gpu_only,

theano/sandbox/gpuarray/dnn.py

@@ -17,9 +17,8 @@ from theano.tensor.nnet.abstract_conv import (AbstractConv2d,
                                               AbstractConv2d_gradWeights,
                                               AbstractConv2d_gradInputs,
                                               get_conv_output_shape)
-from theano.tensor.signal.downsample import (DownsampleFactorMax,
-                                             MaxPoolGrad, AveragePoolGrad)
-
+from theano.tensor.signal.pool import (
+    Pool, MaxPoolGrad, AveragePoolGrad)
 from . import pygpu
 from .type import get_context, gpu_context_type, list_contexts, GpuArrayType
 from .basic_ops import (as_gpuarray_variable, infer_context_name,
@@ -1383,7 +1382,7 @@ def local_dnn_convi_output_merge(node, *inputs):
 
 
 @register_opt('cudnn')
-@op_lifter([DownsampleFactorMax])
+@op_lifter([Pool])
 def local_pool_dnn_alternative(node, ctx_name):
     if not dnn_available(ctx_name):
         return

theano/sandbox/gpuarray/tests/test_dnn.py

@@ -9,8 +9,8 @@ from six import StringIO
 import theano.tensor as T
 import theano.tests.unittest_tools as utt
 from theano.sandbox.neighbours import images2neibs
-from theano.tensor.signal.downsample import max_pool_2d
-from theano.tensor.signal.downsample import MaxPoolGrad, AveragePoolGrad
+from theano.tensor.signal.pool import pool_2d
+from theano.tensor.signal.pool import MaxPoolGrad, AveragePoolGrad
 
 from .. import dnn
 from ..basic_ops import GpuAllocEmpty
@@ -185,7 +185,7 @@ def test_pooling():
                     # Not implemented
                     continue
                 # We will check that the opt introduced it.
-                out1 = max_pool_2d(x, (ws, ws),
+                out1 = pool_2d(x, (ws, ws),
                                st=(stride, stride),
                                ignore_border=True,
                                padding=pad, mode=mode)
@@ -223,7 +223,7 @@ def test_pooling():
 
             # This test the CPU grad + opt + GPU implemtentation
             def fn(x):
-                return max_pool_2d(x, (ws, ws), ignore_border=True,
+                return pool_2d(x, (ws, ws), ignore_border=True,
                                padding=pad, mode=mode)
             utt.verify_grad(fn, [data],
                             cast_to_output_type=False,
@@ -253,7 +253,7 @@ def test_pooling():
             g_out = fg(data)
 
             # Compare against the CPU result
-            out = max_pool_2d(x, (ws, ws),
+            out = pool_2d(x, (ws, ws),
                           padding=pad,
                           ignore_border=True, mode=mode)
             fc = theano.function([x], theano.grad(out.sum(), x),
@@ -276,7 +276,7 @@ def test_pooling_opt():
 
     f = theano.function(
         [x],
-        max_pool_2d(x, ds=(2, 2), mode='average_inc_pad',
+        pool_2d(x, ds=(2, 2), mode='average_inc_pad',
                 ignore_border=True),
         mode=mode_with_gpu)
 
@@ -287,7 +287,7 @@ def test_pooling_opt():
 
     f = theano.function(
         [x],
-        T.grad(max_pool_2d(x, ds=(2, 2), mode='average_inc_pad',
+        T.grad(pool_2d(x, ds=(2, 2), mode='average_inc_pad',
                        ignore_border=True).sum(),
                x),
         mode=mode_with_gpu.including("cudnn"))
@@ -315,7 +315,7 @@ def test_dnn_tag():
     try:
         f = theano.function(
             [x],
-            max_pool_2d(x, ds=(2, 2), ignore_border=True),
+            pool_2d(x, ds=(2, 2), ignore_border=True),
             mode=mode_with_gpu.including("cudnn"))
     except (AssertionError, RuntimeError):
         assert not dnn.dnn_available(test_ctx_name)

theano/tensor/nnet/conv.py

@@ -3,7 +3,7 @@ Contains an Op for convolving input images with a set of filters. This was
 developed especially for Convolutional Neural Networks.
 
 For related ops, including downsampling and subsampling, see
-tensor.signal and tensor.signal.downsample.
+tensor.signal and tensor.signal.pool.
 
 See especially conv2d().
 """

theano/tests/test_flake8.py

@@ -79,7 +79,7 @@ whitelist_flake8 = [
     "tensor/tests/test_blas_c.py",
     "tensor/tests/test_blas_scipy.py",
     "tensor/tests/test_mpi.py",
-    "tensor/signal/downsample.py",
+    "tensor/signal/pool.py",
     "tensor/signal/conv.py",
     "tensor/signal/tests/test_conv.py",
     "tensor/signal/tests/test_downsample.py",

theano/tests/test_rop.py

@@ -21,7 +21,7 @@ import numpy
 from theano.gof import Op, Apply
 from theano.gradient import grad_undefined
 from theano.tests.unittest_tools import SkipTest
-from theano.tensor.signal.downsample import DownsampleFactorMax
+from theano.tensor.signal.pool import Pool
 from theano.tensor.nnet import conv
 
 '''