Kokkos CUDA Support

Collaboration diagram for Kokkos CUDA Support:

Classes
class	Kokkos::ThrustGPUNode
	Kokkos node interface to the Thrust library for NVIDIA CUDA-capable GPUs. More...

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Detailed Description

Kokkos provides support for NVIDIA graphics processing units (GPUs) via the NVIDIA CUDA platform and the Thrust CUDA library. Therefore, to utilize a GPU in Kokkos, you will need the following:

• a CUDA-capable GPU. See this page.
• the CUDA developer environment, available here. Kokkos is currently tested against CUDA 3.2 RC2.
• the Thrust library, available here. Kokkos is currently tested against Thrust 1.3.

CUDA and Thrust are registered third-party libraries (TPLs) which need to be activated in the Trilinos build. The relevant CMake build options are:

• TPL_ENABLE_CUDA:BOOL=ON
• TPL_ENABLE_Thrust:BOOL=ON
• Thrust_INCLUDE_DIRS=/path/above/thrust/directory
• Trilinos_ENABLE_DEVELOPMENT_MODE:BOOL=OFF

At this point, the Trilinos build system should look for the NVIDIA CUDA compiler and libraries in the default paths, depending on your system. The disabling of development m

After this, the main thing that needs to be done is to specify the use of the ThrustGPUNode type in your Kokkos (and Tpetra, etc.) objects.