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-rw-r--r--unsupported/Eigen/CXX11/src/Tensor/TensorContractionBlocking.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorContractionBlocking.h b/unsupported/Eigen/CXX11/src/Tensor/TensorContractionBlocking.h
index a1e292108..8c1af1da8 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorContractionBlocking.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorContractionBlocking.h
@@ -28,6 +28,20 @@ class TensorContractionBlocking {
typedef typename LhsMapper::Scalar LhsScalar;
typedef typename RhsMapper::Scalar RhsScalar;
+ /*
+ adding EIGEN_DEVICE_FUNC unconditionally to 'TensorContractionBlocking' constructor in `TensorContractionBlocking.h`
+ requires adding EIGEN_DEVICE_FUNC to `computeProductBlockingSizes` in `GeneralBlockPanelKernel.h`
+ which in turn, requires adding EIGEN_DEVICE_FUNC to `evaluateProductBlockingSizesHeuristic` in `GeneralBlockPanelKernel.h`
+ which in turn, requires adding EIGEN_DEVICE_FUNC to `manage_caching_sizes` in `GeneralBlockPanelKernel.h`
+ (else HIPCC will error out)
+
+ However adding EIGEN_DEVICE_FUNC to `manage_caching_sizes` in `GeneralBlockPanelKernel.h`
+ results in NVCC erroring out with the following error
+
+ ../Eigen/src/Core/products/GeneralBlockPanelKernel.h(57): error #2901:
+ dynamic initialization is not supported for function-scope static variables within a __device__/__global__ function
+ */
+
#if !defined(EIGEN_HIPCC)
EIGEN_DEVICE_FUNC
#endif