asymmetric_kernel (PaddlePaddle#969)

* asymmetric_kernel

* asymmetric_kernel

Author: RachelXu7

paddleslim/nas/ofa/layers.py

@@ -214,6 +214,10 @@ def __init__(self,
                 setattr(self, name, param)
 
     def get_active_filter(self, in_nc, out_nc, kernel_size):
+        ### Unsupport for asymmetric kernels
+        if self._kernel_size[0] != self._kernel_size[1]:
+            return self.weight[:out_nc, :in_nc, :, :]
+
         start, end = compute_start_end(self._kernel_size[0], kernel_size)
         ### if NOT transform kernel, intercept a center filter with kernel_size from largest filter
         filters = self.weight[:out_nc, :in_nc, start:end, start:end]
@@ -288,9 +292,14 @@ def forward(self, input, kernel_size=None, expand_ratio=None, channel=None):
             out_nc = int(channel)
         else:
             out_nc = self._out_channels
+
         ks = int(self._kernel_size[0]) if kernel_size == None else int(
             kernel_size)
 
+        if kernel_size is not None and self._kernel_size[
+                0] != self._kernel_size[1]:
+            _logger.error("Searching for asymmetric kernels is NOT supported")
+
         groups, weight_in_nc, weight_out_nc = self.get_groups_in_out_nc(in_nc,
                                                                         out_nc)
 
@@ -518,6 +527,9 @@ def __init__(self,
                 setattr(self, name, param)
 
     def get_active_filter(self, in_nc, out_nc, kernel_size):
+        ### Unsupport for asymmetric kernels
+        if self._kernel_size[0] != self._kernel_size[1]:
+            return self.weight[:out_nc, :in_nc, :, :]
         start, end = compute_start_end(self._kernel_size[0], kernel_size)
         filters = self.weight[:in_nc, :out_nc, start:end, start:end]
         if self.transform_kernel != False and kernel_size < self._kernel_size[
@@ -600,6 +612,10 @@ def forward(self,
         ks = int(self._kernel_size[0]) if kernel_size == None else int(
             kernel_size)
 
+        if kernel_size is not None and self._kernel_size[
+                0] != self._kernel_size[1]:
+            _logger.error("Searching for asymmetric kernels is NOT supported")
+
         groups, weight_in_nc, weight_out_nc = self.get_groups_in_out_nc(in_nc,
                                                                         out_nc)
 

paddleslim/nas/ofa/layers_old.py

@@ -213,6 +213,9 @@ def __init__(self,
                 setattr(self, name, param)
 
     def get_active_filter(self, in_nc, out_nc, kernel_size):
+        ### Unsupport for asymmetric kernels
+        if self._filter_size[0] != self._filter_size[1]:
+            return self.weight[:out_nc, :in_nc, :, :]
         start, end = compute_start_end(self._filter_size[0], kernel_size)
         ### if NOT transform kernel, intercept a center filter with kernel_size from largest filter
         filters = self.weight[:out_nc, :in_nc, start:end, start:end]
@@ -285,6 +288,10 @@ def forward(self, input, kernel_size=None, expand_ratio=None, channel=None):
         ks = int(self._filter_size[0]) if kernel_size == None else int(
             kernel_size)
 
+        if kernel_size is not None and self._filter_size[
+                0] != self._filter_size[1]:
+            _logger.error("Searching for asymmetric kernels is NOT supported")
+
         groups, weight_in_nc, weight_out_nc = self.get_groups_in_out_nc(in_nc,
                                                                         out_nc)
 
@@ -513,6 +520,9 @@ def __init__(self,
                 setattr(self, name, param)
 
     def get_active_filter(self, in_nc, out_nc, kernel_size):
+        ### Unsupport for asymmetric kernels
+        if self._filter_size[0] != self._filter_size[1]:
+            return self.weight[:out_nc, :in_nc, :, :]
         start, end = compute_start_end(self._filter_size[0], kernel_size)
         filters = self.weight[:in_nc, :out_nc, start:end, start:end]
         if self.transform_kernel != False and kernel_size < self._filter_size[
@@ -584,6 +594,10 @@ def forward(self, input, kernel_size=None, expand_ratio=None, channel=None):
         ks = int(self._filter_size[0]) if kernel_size == None else int(
             kernel_size)
 
+        if kernel_size is not None and self._filter_size[
+                0] != self._filter_size[1]:
+            _logger.error("Searching for asymmetric kernels is NOT supported")
+
         groups, weight_in_nc, weight_out_nc = self.get_groups_in_out_nc(in_nc,
                                                                         out_nc)