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/**
* Copyright (c) 2018-present, Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "reduce_scatter_ops.h"
#include <gloo/reduce_scatter.h>
#include <gloo/types.h>
namespace caffe2 {
namespace gloo {
template <class Context>
void ReduceScatterOp<Context>::initializeHalvingDoubling() {
if (init_.template IsType<float>()) {
algorithm_.reset(new ::gloo::ReduceScatterHalvingDoubling<float>(
init_.context,
init_.template getOutputs<float>(),
init_.size,
recvCounts_));
} else if (init_.template IsType<::at::Half>()) {
algorithm_.reset(new ::gloo::ReduceScatterHalvingDoubling<::gloo::float16>(
init_.context,
init_.template getOutputs<::gloo::float16>(),
init_.size,
recvCounts_));
} else {
CAFFE_ENFORCE(false, "Unhandled type: ", init_.meta.name());
}
}
namespace {
REGISTER_CPU_OPERATOR_WITH_ENGINE(
ReduceScatter,
GLOO,
ReduceScatterOp<CPUContext>);
} // namespace
} // namespace gloo
} // namespace caffe2
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