public void CanComposeFunction()
{
Device device = new Device(testContext);
string code = @"function (I) -> (O) {
O = I * I;
}";
Function f = new Function(testContext, code);
Assert.True(f.IsAllocated);
DeviceTensor i = new DeviceTensor(device, new Compiler.PlaidML.Shape(testContext, PlaidmlDatatype.PLAIDML_DATA_INT32, 6),
"I");
DeviceTensor o = new DeviceTensor(device, new Compiler.PlaidML.Shape(testContext, PlaidmlDatatype.PLAIDML_DATA_INT32, 6),
"O");
Int32[] input_data = { 0, 1, 3, 4, 5, 6 };
i.CreateView <Int32>(MemoryMapType.Discard).CopyFromAndFree(input_data);
var v = i.CreateView <Int32>(MemoryMapType.Retain);
Assert.Equal(3, v[2]);
Invoker <int> inv1 = new Invoker <int>(testContext, f, o, i);
Assert.True(inv1.IsAllocated);
Invocation <int> k = inv1.Invoke();
Assert.True(k.IsAllocated);
DeviceTensorView <Int32> R = o.CreateView <Int32>(MemoryMapType.Retain);
Assert.Equal(6, R.ElementCount);
Assert.Equal(9, R[2]);
DeviceTensor co = new DeviceTensor(device, new Compiler.PlaidML.Shape(testContext, PlaidmlDatatype.PLAIDML_DATA_INT32, 6),
"O");
Composer c = new Composer(testContext);
Applier a = new Applier(testContext, f);
a.AddInputValue(i);
var fo = a.AddOutputValue("O");
Assert.True(fo.IsAllocated);
Assert.True(c.AddInputPlaceholder("I", i.DimensionCount));
Assert.True(c.AddOutputValue(co));
Assert.True(c.AddDependency(a));
Assert.True(c.AddUpdate(co, fo));
Function gf = c.BuildFunction();
Assert.True(gf.IsAllocated);
Invoker <int> gi = new Invoker <int>(testContext, gf, co, i);
Assert.True(gi.IsAllocated);
Invocation <int> inv = gi.Invoke();
Assert.True(inv.IsAllocated);
R = co.CreateView <Int32>(MemoryMapType.Retain);
Assert.Equal(6, R.ElementCount);
Assert.Equal(9, R[2]);
}