rename to n_group

Author: Peter Yeh

src/contrib/miopen/conv_forward.cc

@@ -56,15 +56,15 @@ TVM_REGISTER_GLOBAL("tvm.contrib.miopen.conv2d.setup")
   MIOpenThreadEntry* entry_ptr = MIOpenThreadEntry::ThreadLocal();
   // assertion for group count; 
   assert(n_group > 0 && "Group Size > 0 is expected");
-  if(n_group>1)
-    mode = 2; 
+  if(n_group > 1)
+    assert(mode > 1 && "Group /Depthwise Conv mode when num of groups > 1");
   // Set Mode
   entry_ptr->conv_entry.mode = static_cast<miopenConvolutionMode_t>(mode);
   // Set Ctx
   entry_ptr->conv_entry.ctx = TVMContext{kDLROCM, 0};
   // Set Data Type
   entry_ptr->conv_entry.data_type = static_cast<miopenDataType_t>(
-      dtype);  // MIOpen supports fp32(miopenFloat), fp16(miopenHalf) at
+      dtype);  // MIOpen supports fp32(miopenFloat), fp16(miopenHalf), int32, int8 at
                // this moment.
   // Set Desc
   MIOPEN_CALL(miopenInitConvolutionDescriptor(entry_ptr->conv_entry.conv_desc,
@@ -81,7 +81,7 @@ TVM_REGISTER_GLOBAL("tvm.contrib.miopen.conv2d.setup")
   MIOPEN_CALL(miopenSet4dTensorDescriptor(entry_ptr->conv_entry.filter_desc,
                                           entry_ptr->conv_entry.data_type,
                                           w_dim0,
-                                          w_dim1/group,
+                                          w_dim1/n_group,
                                           w_dim2,
                                           w_dim3));
   // Set Input