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#include <torch/csrc/distributed/c10d/ProcessGroupRoundRobin.hpp>
namespace c10d {
ProcessGroupRoundRobin::ProcessGroupRoundRobin(
int rank,
int size,
std::vector<c10::intrusive_ptr<ProcessGroup>> processGroups)
: ProcessGroup(rank, size), processGroups_(std::move(processGroups)) {
TORCH_WARN(
"ProcessGroupRoundRobin is deprecated and scheduled to be removed after this current release (1.13). ",
"Please file an issue on https://github.com/pytorch/pytorch/issues if there are any concerns or issues with this deprecation.");
TORCH_CHECK(processGroups_.size() >= 1);
for (const auto& processGroup : processGroups_) {
TORCH_CHECK(processGroup->getRank() == rank_);
TORCH_CHECK(processGroup->getSize() == size_);
}
iterator_ = processGroups_.begin();
}
ProcessGroupRoundRobin::~ProcessGroupRoundRobin() {}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::broadcast(
std::vector<at::Tensor>& tensors,
const BroadcastOptions& opts) {
return next()->broadcast(tensors, opts);
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::allreduce(
std::vector<at::Tensor>& tensors,
const AllreduceOptions& opts) {
return next()->allreduce(tensors, opts);
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::allreduce_coalesced(
std::vector<at::Tensor>& tensors,
const AllreduceCoalescedOptions& opts) {
return next()->allreduce_coalesced(tensors, opts);
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::reduce(
std::vector<at::Tensor>& tensors,
const ReduceOptions& opts) {
return next()->reduce(tensors, opts);
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::allgather(
std::vector<std::vector<at::Tensor>>& outputs,
std::vector<at::Tensor>& inputs,
const AllgatherOptions& opts) {
return next()->allgather(outputs, inputs, opts);
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::allgather_coalesced(
std::vector<std::vector<at::Tensor>>& outputTensorLists,
std::vector<at::Tensor>& inputTensors,
const AllgatherOptions& opts) {
return next()->allgather(outputTensorLists, inputTensors, opts);
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::gather(
std::vector<std::vector<at::Tensor>>& outputs,
std::vector<at::Tensor>& inputs,
const GatherOptions& opts) {
return next()->gather(outputs, inputs, opts);
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::scatter(
std::vector<at::Tensor>& outputs,
std::vector<std::vector<at::Tensor>>& inputs,
const ScatterOptions& opts) {
return next()->scatter(outputs, inputs, opts);
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::reduce_scatter(
std::vector<at::Tensor>& outputs,
std::vector<std::vector<at::Tensor>>& inputs,
const ReduceScatterOptions& opts) {
return next()->reduce_scatter(outputs, inputs, opts);
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::alltoall_base(
at::Tensor& outputTensor,
at::Tensor& inputTensor,
std::vector<int64_t>& outputSplitSizes,
std::vector<int64_t>& inputSplitSizes,
const AllToAllOptions& opts) {
return next()->alltoall_base(
outputTensor, inputTensor, outputSplitSizes, inputSplitSizes, opts);
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::send(
std::vector<at::Tensor>& /* unused */,
int /* unused */,
int /* unused */) {
TORCH_CHECK(false, "ProcessGroupRoundRobin does not support send");
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::recv(
std::vector<at::Tensor>& /* unused */,
int /* unused */,
int /* unused */) {
TORCH_CHECK(false, "ProcessGroupRoundRobin does not support recv");
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::recvAnysource(
std::vector<at::Tensor>& /* unused */,
int /* unused */) {
TORCH_CHECK(false, "ProcessGroupRoundRobin does not support recv");
};
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::barrier(
const BarrierOptions& /* unused */) {
TORCH_CHECK(false, "ProcessGroupRoundRobin does not support barrier");
};
const c10::intrusive_ptr<ProcessGroup>& ProcessGroupRoundRobin::next() {
auto& processGroup = *iterator_;
iterator_++;
if (iterator_ == processGroups_.end()) {
iterator_ = processGroups_.begin();
}
return processGroup;
}
c10::intrusive_ptr<Work> ProcessGroupRoundRobin::_allgather_base(
at::Tensor& /*unused */,
at::Tensor& /*unused */,
const AllgatherOptions& /*unused */) {
TORCH_CHECK(
false, "no support for _allgather_base in RoundRobin process group");
}
} // namespace c10d
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