From 4f6a313d8eb6adc884951680bd860a81878b43e8 Mon Sep 17 00:00:00 2001 From: Daniel Arndt Date: Fri, 1 Mar 2019 01:22:29 +0100 Subject: [PATCH] Add description of memory and exceution space for CUDA support --- include/deal.II/lac/trilinos_tpetra_vector.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/deal.II/lac/trilinos_tpetra_vector.h b/include/deal.II/lac/trilinos_tpetra_vector.h index e883b24a00..35e31cc92e 100644 --- a/include/deal.II/lac/trilinos_tpetra_vector.h +++ b/include/deal.II/lac/trilinos_tpetra_vector.h @@ -54,9 +54,15 @@ namespace LinearAlgebra * LinearAlgebra::VectorSpaceVector class and requires Trilinos to be * compiled with MPI support. * + * Tpetra uses Kokkos for thread-parallelism. In case Trilinos was + * configured with CUDA support, this class stores the values in unified + * virtual memory space and performs its action on the GPU. In particular, + * there is no need for manually synchronizing memory between host and + * device. + * * @ingroup TrilinosWrappers * @ingroup Vectors - * @author Daniel Arndt, 2018 + * @author Daniel Arndt, 2019 */ template class Vector : public VectorSpaceVector, public Subscriptor -- 2.39.5