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Add support for asynchronous evaluation of tensor casting expressions.

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This commit is contained in:
Rasmus Munk Larsen
2019-09-19 13:54:49 -07:00
parent 28b6786498
commit 1d5af0693c
2 changed files with 37 additions and 6 deletions
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31
unsupported/Eigen/CXX11/src/Tensor/TensorConversion.h
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@@ -178,6 +178,27 @@ template <typename Eval, typename EvalPointerType> struct ConversionSubExprEval<
}
};
#ifdef EIGEN_USE_THREADS
template <bool SameType, typename Eval, typename EvalPointerType,
typename EvalSubExprsCallback>
struct ConversionSubExprEvalAsync {
static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void run(
Eval& impl, EvalPointerType, EvalSubExprsCallback done) {
impl.evalSubExprsIfNeededAsync(nullptr, std::move(done));
}
};
template <typename Eval, typename EvalPointerType,
typename EvalSubExprsCallback>
struct ConversionSubExprEvalAsync<true, Eval, EvalPointerType,
EvalSubExprsCallback> {
static EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void run(
Eval& impl, EvalPointerType data, EvalSubExprsCallback done) {
impl.evalSubExprsIfNeededAsync(data, std::move(done));
}
};
#endif
namespace internal {
template <typename SrcType, typename TargetType, bool IsSameT>
@@ -299,6 +320,16 @@ struct TensorEvaluator<const TensorConversionOp<TargetType, ArgType>, Device>
return ConversionSubExprEval<IsSameType, TensorEvaluator<ArgType, Device>, EvaluatorPointerType>::run(m_impl, data);
}
#ifdef EIGEN_USE_THREADS
template <typename EvalSubExprsCallback>
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void evalSubExprsIfNeededAsync(
EvaluatorPointerType data, EvalSubExprsCallback done) {
ConversionSubExprEvalAsync<IsSameType, TensorEvaluator<ArgType, Device>,
EvaluatorPointerType,
EvalSubExprsCallback>::run(m_impl, data, std::move(done));
}
#endif
EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void cleanup()
{
m_impl.cleanup();