public DataParallelExecutorGroup(Symbol sym,
IList <string> argNames,
IList <string> paramNames,
IList <Context> ctx,
IList <Tuple <int, int> > slices,
IDataIProvide trainData,
DataParallelExecutorGroup sharedGroup = null)
{
Model.CheckArguments(sym);
if (sharedGroup == null)
{
this._sharedDataArrays = ctx.Select(s => new Dictionary <string, NdArray>()).ToList();
}
else
{
this._sharedDataArrays = sharedGroup._sharedDataArrays;
}
this._dataNames = trainData.ProvideData.Select(s => s.Key).ToList();
this._labelNames = trainData.ProvideLabel.Select(s => s.Key).ToList();
this._auxNames = sym.ListAuxiliaryStates();
this._paramIdx = argNames.Select((x, i) => new { x = x, i = i }).Where(w => paramNames.Contains(w.x)).Select(s => s.i).ToList();
this._paramNames = _paramIdx.Select(s => argNames[s]).ToList();
this.TrainExecs = new List <Executor>();
for (int i = 0; i < ctx.Count; i++)
{
var concat = trainData.ProvideData.Concat(trainData.ProvideLabel);
var dataShapes = concat.ToDictionary(kvK => kvK.Key,
kvV =>
{
List <uint> tuple = new List <uint>();
tuple.Add((uint)(slices[i].Item2 - slices[i].Item1));
tuple.AddRange(kvV.Value.Data().Skip(1));
return(tuple.ToArray());
});
var sharedExec = sharedGroup == null ? null : sharedGroup.TrainExecs[i];
var trainExec = BindExec(sym, ctx[i], dataShapes, this._paramNames,
needGradInput: true, baseExec: sharedExec,
sharedDataArrays: this._sharedDataArrays[i]);
this.TrainExecs.Add(trainExec);
}
this._dataArrays = _dataNames.Select(name => TrainExecs.Select((e, i) => Tuple.Create(slices[i], e.ArgDict[name])).ToList()).ToList();
this._labelArrays = _labelNames.Select(name => TrainExecs.Select((e, i) => Tuple.Create(slices[i], e.ArgDict[name])).ToList()).ToList();
this.ParamArrays = _paramIdx.Select(i => TrainExecs.Select((e) => e.ArgArrays[i]).ToList()).ToList();
this.GradArrays = _paramIdx.Select(i => TrainExecs.Select((e) => e.GradArrays[i]).ToList()).ToList();
this.AuxArrays = Enumerable.Range(0, this._auxNames.Count).Select(i => TrainExecs.Select((e) => e.AuxArrays[i]).ToList()).ToList();
this._slices = slices;
}
public DataParallelExecutorGroup(Symbol sym,
List <string> arg_names,
List <string> param_names,
List <Context> ctx,
List <Tuple <int, int> > slices,
IDataIProvide train_data,
DataParallelExecutorGroup shared_group = null)
{
Util._check_arguments(sym);
if (shared_group == null)
{
this._shared_data_arrays = ctx.Select(s => new Dictionary <string, NDArray>()).ToList();
}
else
{
this._shared_data_arrays = shared_group._shared_data_arrays;
}
this._data_names = train_data.provide_data.Select(s => s.Key).ToList();
this._label_names = train_data.provide_label.Select(s => s.Key).ToList();
this._aux_names = sym.ListAuxiliaryStates();
this._param_idx = arg_names.Select((x, i) => new { x = x, i = i }).Where(w => param_names.Contains(w.x)).Select(s => s.i).ToList();
this._param_names = _param_idx.Select(s => arg_names[s]).ToList();
this.train_execs = new List <Executor>();
for (int i = 0; i < ctx.Count; i++)
{
var concat = train_data.provide_data.Concat(train_data.provide_label);
var data_shapes = concat.ToDictionary(kv_k => kv_k.Key,
kv_v =>
{
List <uint> tuple = new List <uint>();
tuple.Add((uint)(slices[i].Item2 - slices[i].Item1));
tuple.AddRange(kv_v.Value.Data().Skip(1));
return(tuple.ToArray());
});
var shared_exec = shared_group == null ? null : shared_group.train_execs[i];
var train_exec = _bind_exec(sym, ctx[i], data_shapes, this._param_names,
need_grad_input: true, base_exec: shared_exec,
shared_data_arrays: this._shared_data_arrays[i]);
this.train_execs.Add(train_exec);
}
this._data_arrays = _data_names.Select(name => train_execs.Select((e, i) => Tuple.Create(slices[i], e.arg_dict[name])).ToList()).ToList();
this._label_arrays = _label_names.Select(name => train_execs.Select((e, i) => Tuple.Create(slices[i], e.arg_dict[name])).ToList()).ToList();
this.param_arrays = _param_idx.Select(i => train_execs.Select((e) => e.arg_arrays[i]).ToList()).ToList();
this.grad_arrays = _param_idx.Select(i => train_execs.Select((e) => e.grad_arrays[i]).ToList()).ToList();
this._aux_arrays = Enumerable.Range(0, this._aux_names.Count).Select(i => train_execs.Select((e) => e.aux_arrays[i]).ToList()).ToList();
this._slices = slices;
}