Added set_attribute + added script module to to include attributes

RELEASENOTES.md

@@ -27,6 +27,7 @@ __Bug Fixes__:
 #1174 : Loading CUDA tensor from stream threw an error<br/>
 #1179 : Calling `Module.to()` with the `ParameterList` and `ParameterDict` module didn't move the parameters stored in the field.<br/>
 #1148 : Calling `Module.to()` shouldn't be differentiable<br/>
+#1126 : Calling `ScriptModule.to()` doesn't move attributes<br/>
 #1180 : Module.to(ScalarType) has restrictions in PyTorch which aren't restricted in TorchSharp.<br/>
 
 ## NuGet Version 0.101.2

src/Native/LibTorchSharp/THSJIT.cpp

@@ -151,11 +151,11 @@ void THSJIT_Module_named_buffers(const JITModule module,
     }
 }
 
-void THSJIT_Module_named_attributes(const JITModule module,
+void THSJIT_Module_named_attributes(const JITModule module, bool recurse,
     Tensor* (*allocator)(size_t length),
     const char** (*allocator2)(size_t length))
 {
-    auto attributes = (*module)->named_attributes();
+    auto attributes = (*module)->named_attributes(recurse);
     Tensor* result = allocator(attributes.size());
     const char** names = allocator2(attributes.size());
     int i = 0;
@@ -170,6 +170,11 @@ void THSJIT_Module_named_attributes(const JITModule module,
     }
 }
 
+void THSJIT_Module_set_attribute(const JITModule module, const char *name, Tensor tensor)
+{
+    CATCH((*module)->setattr(name, *tensor););
+}
+
 JITMethod THSJIT_Module_get_method(const JITModule module, const char* name)
 {
     auto method = (*module)->get_method(name);

src/Native/LibTorchSharp/THSJIT.h

@@ -78,10 +78,12 @@ EXPORT_API(void) THSJIT_Module_named_buffers(const JITModule module,
     Tensor* (*allocator)(size_t length),
     const char** (*allocator2)(size_t length));
 
-EXPORT_API(void) THSJIT_Module_named_attributes(const JITModule module,
+EXPORT_API(void) THSJIT_Module_named_attributes(const JITModule module, bool recurse,
     Tensor* (*allocator)(size_t length),
     const char** (*allocator2)(size_t length));
 
+EXPORT_API(void) THSJIT_Module_set_attribute(const JITModule module, const char* name, Tensor tensor);
+
 EXPORT_API(int) THSJIT_Method_num_inputs(const JITMethod method);
 
 EXPORT_API(void) THSJIT_Method_dispose(const JITMethod method);

src/TorchSharp/JIT/ScriptModule.cs

@@ -46,18 +46,24 @@ protected override (string name, Tensor buffer)[] _named_buffers()
                     return ptrArray.Select((x, i) => (Marshal.PtrToStringAnsi(strArray[i]), new Tensor(x))).ToArray();
                 }
 
-                public (string name, Tensor buffer)[] named_attributes()
+                public (string name, Tensor buffer)[] named_attributes(bool recurse = true)
                 {
                     using var pa = new PinnedArray<IntPtr>();
                     using var sa = new PinnedArray<IntPtr>();
-                    THSJIT_Module_named_attributes(handle, pa.CreateArray, sa.CreateArray);
+                    THSJIT_Module_named_attributes(handle, recurse, pa.CreateArray, sa.CreateArray);
                     CheckForErrors();
                     var ptrArray = pa.Array;
                     var strArray = sa.Array;
 
                     return ptrArray.Select((x, i) => (Marshal.PtrToStringAnsi(strArray[i]), new Tensor(x))).ToArray();
                 }
 
+                public void set_attribute(string name, Tensor buffer)
+                {
+                    THSJIT_Module_set_attribute(handle, name, buffer.Handle);
+                    CheckForErrors();
+                }
+
                 /// <summary>
                 /// Returns an enumerable of all modules in the network, yielding both the name of the module as well as the module itself.
                 /// </summary>
@@ -149,7 +155,7 @@ protected internal override nn.Module _to(Device device, ScalarType dtype)
                     CheckForErrors();
 
                     _toEpilog(device, dtype);
-
+                    _toScriptEpilog(device, dtype);
                     return this;
                 }
 
@@ -172,6 +178,7 @@ protected internal override nn.Module _to(DeviceType deviceType, int deviceIndex
                         CheckForErrors();
 
                         _toEpilog(deviceType, deviceIndex);
+                        _toScriptEpilog(deviceType, deviceIndex);
                     }
 
                     Debug.Assert(_deviceType == DeviceType.CUDA || _deviceIndex == -1);
@@ -192,10 +199,35 @@ protected internal override nn.Module _to(ScalarType dtype)
                     CheckForErrors();
 
                     _toEpilog(dtype);
+                    _toScriptEpilog(dtype);
 
                     return this;
                 }
 
+                protected void _toScriptEpilog(ScalarType dtype)
+                {
+                    _toScriptEpilog(dtype, null);
+                }
+
+                protected void _toScriptEpilog(Device device, ScalarType dtype)
+                {
+                    _toScriptEpilog(dtype, device);
+                }
+
+                protected void _toScriptEpilog(DeviceType deviceType, int deviceIndex)
+                {
+                    _toScriptEpilog(null, new Device(deviceType, deviceIndex));
+                }
+
+                private void _toScriptEpilog(ScalarType? dtype, Device device)
+                {
+                    foreach (var (name, buffer) in named_attributes(recurse: false)) {
+                        if (name is null || !buffer.toWillCopy(dtype ?? buffer.dtype, device ?? buffer.device)) continue;
+
+                        set_attribute(name, buffer.to(dtype ?? buffer.dtype, device ?? buffer.device, disposeAfter: true));
+                    }
+                }
+
 #if false   // These functions "work," but the native code doesn't seem to find any interesting information.
 
                 public Type GetInputType(int index)

src/TorchSharp/PInvoke/LibTorchSharp.THSJIT.cs

@@ -27,7 +27,10 @@ internal static partial class NativeMethods
         internal static extern void THSJIT_Module_named_buffers(torch.nn.Module.HType module, AllocatePinnedArray allocator1, AllocatePinnedArray allocator2);
 
         [DllImport("LibTorchSharp")]
-        internal static extern void THSJIT_Module_named_attributes(torch.nn.Module.HType module, AllocatePinnedArray allocator1, AllocatePinnedArray allocator2);
+        internal static extern void THSJIT_Module_named_attributes(torch.nn.Module.HType module, [MarshalAs(UnmanagedType.U1)] bool recurse, AllocatePinnedArray allocator1, AllocatePinnedArray allocator2);
+
+        [DllImport("LibTorchSharp")]
+        internal static extern void THSJIT_Module_set_attribute(torch.nn.Module.HType module, [MarshalAs(UnmanagedType.LPStr)] string name, IntPtr tensor);
 
         [DllImport("LibTorchSharp")]
         internal static extern void THSJIT_Module_named_modules(torch.nn.Module.HType module, AllocatePinnedArray allocator1, AllocatePinnedArray allocator2);

test/TorchSharpTest/TestTorchTensorBugs.cs

@@ -1395,7 +1395,7 @@ public void Validate1047_2()
             Assert.Equal(iterations_1047, xx);
         }
 
-        [Fact(Skip = "Work in progress")]
+        [Fact]
         public void Validate1126()
         {
             var device = torch.cuda.is_available() ? torch.CUDA : torch.CPU;
@@ -1405,12 +1405,9 @@ public void Validate1126()
 
             var model = torch.jit.load<torch.Tensor, torch.Tensor>("shakespeare.pt.zip").to(device);
 
-            var attributes = model.named_attributes().ToArray();
-
             var xs = torch.tensor(new int[blockSize].Select(_ => new Random().Next(vocabSize)).ToArray(), device: device, dtype: torch.int64).unsqueeze(0);
 
             var ys = model.forward(xs);
-
         }
 
         [Fact]