Maxwell-TD-Scattering/MaxwellTD_GPU

HPC-DGTD

Quick start with CMake

CPU build:

• mkdir <dgtd-build-dir> ; cd <dgtd-build-dir>
• cmake <dgtd-source-dir>
• make -j 4 (assuming "UNIX Makefiles" generator)

GPU build:

(this build requires CMake 3.8 or newer)

• mkdir <dgtd-build-dir> ; cd <dgtd-build-dir>
• cmake <dgtd-source-dir> -DDGTD_USE_CUDA=YES
• make -j 4

Building with CMake

The MaxwellTD build system consists of two steps: configuration and compilation.

The configuration step can be used to adjust paths to external libraries, compilers, flags, etc, similar to any CMake build system. It is performed by running

• mkdir <dgtd-build-dir> ; cd <dgtd-build-dir>
• cmake <dgtd-source-dir> [OPTIONS] ...

The OPTIONS are of the form -D<VARIABLE>=<VALUE>, e.g. -DDGTD_USE_CUDA=YES. Alternatively, the options can be specified with an input file:

• cd <dgtd-source-dir>/config
• edit defaults.cmake

Configuration variables (CMake)

See the configuration file config/defaults.cmake for the default settings.

Note: the option DGTD_USE_CUDA requires CMake version 3.8 or newer!

DGTD features/options (CMake)

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• DGTD_USE_OPENMP
• DGTD_USE_DOUBLE
• DGTD_USE_DOUBLE_TS
• DGTD_USE_CUDA
• DGTD_USE_OPENCL
• DGTD_USE_CUDA_OPENCL