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702a2e3bc5
Because of this Variables can no longer appear in the graph. Every usage of a leaf Variable will leave an AccumulateGrad function that has no outputs, but modifies var.grad as a side effect.
24 lines
659 B
C++
24 lines
659 B
C++
#include "torch/csrc/autograd/functions/utils.h"
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namespace torch { namespace autograd {
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variable_list wrap_outputs(const variable_list& inputs, tensor_list&& outputs,
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function_constructor ctr) {
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auto flags = Function::flags(inputs);
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variable_list result;
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result.reserve(outputs.size());
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if (flags.is_volatile) {
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for (auto& output : outputs) {
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result.emplace_back(Variable::of(std::move(output), true));
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}
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} else {
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auto grad_fn = ctr(std::move(flags));
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for (auto& output : outputs) {
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result.emplace_back(std::make_shared<Variable>(std::move(output), grad_fn));
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}
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}
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return result;
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}
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}}
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