From: Daniel Arndt Date: Fri, 1 Mar 2019 00:22:29 +0000 (+0100) Subject: Add description of memory and exceution space for CUDA support X-Git-Tag: v9.1.0-rc1~309^2~1 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f6a313d8eb6adc884951680bd860a81878b43e8;p=dealii.git Add description of memory and exceution space for CUDA support --- 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