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#include <torch/csrc/distributed/autograd/functions/sendrpc_backward.h>
namespace torch {
namespace distributed {
namespace autograd {
torch::autograd::variable_list SendRpcBackward::apply(
torch::autograd::variable_list&& inputs) {
TORCH_INTERNAL_ASSERT(
inputs.empty(), "SendRpcBackward should receive no inputs");
// Each grad variable should be valid!
for (const auto& grad : grads_) {
TORCH_INTERNAL_ASSERT(
grad.defined(), "BUG!: SendRpcBackward didn't receive valid gradients");
}
// Simply forwards the gradients over.
return std::move(grads_);
}
void SendRpcBackward::setGrads(const torch::autograd::variable_list& grads) {
grads_ = grads;
}
} // namespace autograd
} // namespace distributed
} // namespace torch
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