public NDArray()
{
Logging.CHECK_EQ(NativeMethods.MXNDArrayCreateNone(out var @out), NativeMethods.OK);
this.NativePtr = @out;
this._Blob = new NDBlob(@out);
}
public NDArray(mx_float[] data, Shape shape, Context context)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (shape == null)
{
throw new ArgumentNullException(nameof(shape));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
Logging.CHECK_EQ(NativeMethods.MXNDArrayCreate(shape.Data,
(uint)shape.Dimension,
(int)context.GetDeviceType(),
context.GetDeviceId(),
false.ToInt32(),
out var @out), NativeMethods.OK);
NativeMethods.MXNDArraySyncCopyFromCPU(@out, data, shape.Size);
this.NativePtr = @out;
this._Blob = new NDBlob(@out);
}
public NDArray(NDArrayHandle handle)
{
if (handle == NDArrayHandle.Zero)
{
throw new ArgumentException("Can not pass IntPtr.Zero", nameof(handle));
}
this.NativePtr = handle;
this._Blob = new NDBlob(handle);
}
public NDArray(IList <mx_float> data)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
Logging.CHECK_EQ(NativeMethods.MXNDArrayCreateNone(out var @out), NativeMethods.OK);
NativeMethods.MXNDArraySyncCopyFromCPU(@out, data.ToArray(), (size_t)data.Count);
this.NativePtr = @out;
this._Blob = new NDBlob(@out);
}
public NDArray(Shape shape, bool delayAlloc = true)
{
if (shape == null)
{
throw new ArgumentNullException(nameof(shape));
}
Logging.CHECK_EQ(NativeMethods.MXNDArrayCreate(shape.Data,
shape.Dimension,
(int)context.GetDeviceType(),
context.GetDeviceId(),
delayAlloc.ToInt32(),
out var @out), NativeMethods.OK);
this.NativePtr = @out;
this._Blob = new NDBlob(@out);
}
public NDArray(IList <mx_uint> shape, bool delayAlloc = true)
{
if (shape == null)
{
throw new ArgumentNullException(nameof(shape));
}
var floats = shape as mx_uint[];
var arg = floats ?? shape.ToArray();
Logging.CHECK_EQ(NativeMethods.MXNDArrayCreate(arg,
(uint)arg.Length,
(int)context.GetDeviceType(),
context.GetDeviceId(),
delayAlloc.ToInt32(),
out var @out), NativeMethods.OK);
this.NativePtr = @out;
this._Blob = new NDBlob(@out);
}