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Kokkos implements a programming model in C++ for writing performance portable
applications targeting all major HPC platforms. For that purpose it provides
abstractions for both parallel execution of code and data management.
Kokkos is designed to target complex node architectures with N-level memory
hierarchies and multiple types of execution resources. It currently can use
OpenMP, Pthreads and CUDA as backend programming models.
The core developers of Kokkos are Carter Edwards and Christian Trott
at the Computer Science Research Institute of the Sandia National
Laboratories.
The KokkosP interface and associated tools are developed by the Application
Performance Team and Kokkos core developers at Sandia National Laboratories.
To learn more about Kokkos consider watching one of our presentations:
GTC 2015:
http://on-demand.gputechconf.com/gtc/2015/video/S5166.html
http://on-demand.gputechconf.com/gtc/2015/presentation/S5166-H-Carter-Edwards.pdf
A programming guide can be found under doc/Kokkos_PG.pdf. This is an initial version
and feedback is greatly appreciated.
For questions please send an email to
kokkos-users@software.sandia.gov
For non-public questions send an email to
hcedwar(at)sandia.gov and crtrott(at)sandia.gov
============================================================================
====Requirements============================================================
============================================================================
Primary tested compilers are:
GCC 4.7.2
GCC 5.1.0
Intel 14.0.1
Intel 15.0.1
Clang 3.7.0
Secondary tested compilers are:
CUDA 6.5
CUDA 7.0
Primary tested compiler are passing in release mode
with warnings as errors. We are using the following set
of flags:
GCC: -Wall -Wshadow -pedantic -Werror -Wsign-compare -Wtype-limits
-Wignored-qualifiers -Wempty-body -Wclobbered -Wuninitialized
Intel: -Wall -Wshadow -pedantic -Werror -Wsign-compare -Wtype-limits -Wuninitialized
Clang: -Wall -Wshadow -pedantic -Werror -Wsign-compare -Wtype-limits -Wuninitialized
============================================================================
====Getting started=========================================================
============================================================================
In the 'example/tutorial' directory you will find step by step tutorial
examples which explain many of the features of Kokkos. They work with
simple Makefiles. To build with g++ and OpenMP simply type 'make openmp'
in the 'example/tutorial' directory. This will build all examples in the
subfolders.
============================================================================
====Running Unit Tests======================================================
============================================================================
To run the unit tests create a build directory and run the following commands
KOKKOS_PATH/generate_makefile.bash
make build-test
make test
Run KOKKOS_PATH/generate_makefile.bash --help for more detailed options such as
changing the device type for which to build.
============================================================================
====Install the library=====================================================
============================================================================
To install Kokkos as a library create a build directory and run the following
KOKKOS_PATH/generate_makefile.bash --prefix=INSTALL_PATH
make lib
make install
KOKKOS_PATH/generate_makefile.bash --help for more detailed options such as
changing the device type for which to build.
============================================================================
====CMakeFiles==============================================================
============================================================================
The CMake files contained in this repository require Tribits and are used
for integration with Trilinos. They do not currently support a standalone
CMake build.
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