Build modes

The fobos files define 126 modes. Build one with fobis build --mode <mode>; the executables go to exe/.

Varsets. A varset selects the machine and toolchain: the HDF5 build ($HDF5_PREFIX) and, for nvfortran, the GPU compute capability ($NVF_CC). The default varset is local_gnu. Every nvfortran mode needs --varset with an NVF varset, or -gpu=$NVF_CC stays unexpanded and the first nvfortran call fails. The varset table is on the install page. In the tables, default is local_gnu (or the machine's GNU varset: ci_gnu, iac_gnu); NVF is a varset that sets $NVF_CC (local_nvf, iac_nvf, leonardo, spacehpc); AMD is a varset that sets the amdflang HDF5 (local_amd, thera_amd), combined with a gfx* varset to change $GPU_ARCH from its default, gfx942.
Names. <target>-<backend>-<compiler>[-<variant>]: cpu is the CPU backend (MPI, optionally OpenMP), fnl the GPU backend (OpenACC with nvf, OpenMP offload with omp-amd). Build clean after switching compiler: .mod files work only with the compiler that wrote them.
Status. Only FLUME and PRISM (and RIPPLE, the tutorial app) are maintained against the current library.

FLUME

Status: maintained.

Mode	Backend	Variant	Varset
`flume-cpu-gnu`	CPU (gfortran)	—	default
`flume-cpu-gnu-omp`	CPU (gfortran)	CPU OpenMP threads	default
`flume-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`flume-cpu-gnu-fft`	CPU (gfortran)	links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	default
`flume-cpu-gnu-fft-debug`	CPU (gfortran)	debug flags, links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	default
`flume-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`flume-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF
`flume-fnl-nvf-fft`	FNL, OpenACC (nvfortran)	links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	NVF
`flume-fnl-nvf-fft-debug`	FNL, OpenACC (nvfortran)	debug flags, links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	NVF
`flume-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`flume-fnl-omp-amd-debug`	FNL, OpenMP offload (amdflang)	debug flags	AMD

PRISM

Status: maintained.

Mode	Backend	Variant	Varset
`prism-cpu-gnu`	CPU (gfortran)	—	default
`prism-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`prism-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`prism-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF
`prism-fnl-nvf-spacehpc`	FNL, OpenACC (nvfortran)	the `spacehpc` machine's flags	NVF
`prism-cpu-amd`	CPU (amdflang)	—	AMD
`prism-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`prism-fnl-omp-amd-debug`	FNL, OpenMP offload (amdflang)	debug flags	AMD

RIPPLE

Status: maintained (the tutorial's toy app).

Mode	Backend	Variant	Varset
`ripple-cpu-gnu`	CPU (gfortran)	—	default
`ripple-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`ripple-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`ripple-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF

ASCOT

Status: utility, not maintained.

Mode	Backend	Variant	Varset
`ascot-nvf-cuda`	CUDA Fortran (nvfortran)	—	NVF
`ascot-omp-amd`	GPU, OpenMP offload (amdflang)	—	AMD
`ascot-omp-amd-debug`	GPU, OpenMP offload (amdflang)	debug flags	AMD

NASTO

Status: not maintained.

Mode	Backend	Variant	Varset
`nasto-cpu-gnu`	CPU (gfortran)	—	default
`nasto-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`nasto-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`nasto-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF
`nasto-cpu-amd`	CPU (amdflang)	—	AMD
`nasto-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`nasto-fnl-omp-amd-debug`	FNL, OpenMP offload (amdflang)	debug flags	AMD

CHASE

Status: does not build (superseded by FLUME).

Mode	Backend	Variant	Varset
`chase-cpu-gnu`	CPU (gfortran)	—	default
`chase-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`chase-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`chase-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF
`chase-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`chase-fnl-omp-amd-debug`	FNL, OpenMP offload (amdflang)	debug flags	AMD

PATCH

Status: does not build.

Mode	Backend	Variant	Varset
`patch-cpu-gnu`	CPU (gfortran)	—	default
`patch-cpu-gnu-debug`	CPU (gfortran)	debug flags	default
`patch-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`patch-fnl-nvf-debug`	FNL, OpenACC (nvfortran)	debug flags	NVF
`patch-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`patch-fnl-omp-amd-debug`	FNL, OpenMP offload (amdflang)	debug flags	AMD

Library

Mode	Backend	Variant	Varset
`adam-com-gnu`	common library (gfortran)	—	default
`adam-com-gnu-debug`	common library (gfortran)	debug flags	default
`adam-com-nvf`	common library (nvfortran)	—	NVF
`adam-com-nvf-debug`	common library (nvfortran)	debug flags	NVF
`adam-com-omp-amd`	common library (amdflang)	—	AMD
`adam-com-omp-amd-debug`	common library (amdflang)	debug flags	AMD

Tests

Mode	Backend	Variant	Varset
`test-flume-euler-library-gnu`	CPU (gfortran)	—	default
`test-flume-euler-library-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-flume-euler-library-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-flume-mhd-library-gnu`	CPU (gfortran)	—	default
`test-flume-mhd-library-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-flume-mhd-library-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-flume-mhd-riemann-gnu`	CPU (gfortran)	—	default
`test-flume-mhd-riemann-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-flume-mhd-riemann-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-flume-positivity-gnu`	CPU (gfortran)	—	default
`test-flume-weno-interpolation-gnu`	CPU (gfortran)	—	default
`test-flume-weno-weights-gnu`	CPU (gfortran)	—	default
`test-flume-weno-interpolation-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-flume-weno-interpolation-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-flume-user-criterion-cpu-gnu`	CPU (gfortran)	—	default
`test-ripple-crest-criterion-cpu-gnu`	CPU (gfortran)	—	default
`test-fdv-curl-trigonometric-gnu`	CPU (gfortran)	—	default
`test-fdv-curl-trigonometric-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-fnl-curl-trigonometric-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-fdv-fnl-operators-trigonometric-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-fdv-fnl-operators-vector-trigonometric-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-fdv-fnl-curl-trigonometric-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-fdv-fnl-operators-trigonometric-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-fdv-fnl-operators-vector-trigonometric-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-fdv-divergence-trigonometric-gnu`	CPU (gfortran)	—	default
`test-fdv-divergence-trigonometric-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-gradient-trigonometric-gnu`	CPU (gfortran)	—	default
`test-fdv-gradient-trigonometric-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-laplacian-trigonometric-gnu`	CPU (gfortran)	—	default
`test-fdv-laplacian-trigonometric-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-operators-step-gnu`	CPU (gfortran)	—	default
`test-fdv-operators-step-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-operators-trigonometric-gnu`	CPU (gfortran)	—	default
`test-fdv-operators-trigonometric-gnu-debug`	CPU (gfortran)	debug flags	default
`test-prism-reflux-apply-gnu`	CPU (gfortran)	—	default
`test-prism-reflux-apply-gnu-debug`	CPU (gfortran)	debug flags	default
`test-fdv-curl-trigonometric-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-fdv-divergence-trigonometric-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-fdv-gradient-trigonometric-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-fdv-laplacian-trigonometric-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-fdv-operators-step-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-fdv-operators-trigonometric-gnu-cov`	CPU (gfortran)	coverage instrumentation	default
`test-amr-geo-box-gnu`	CPU (gfortran)	—	default
`test-amr-geo-box-gnu-debug`	CPU (gfortran)	debug flags	default
`test-amr-reflux-restrict-gnu`	CPU (gfortran)	—	default
`test-amr-reflux-restrict-gnu-debug`	CPU (gfortran)	debug flags	default
`test-seam-interpolation-gnu`	CPU (gfortran)	—	default
`test-seam-interpolation-gnu-debug`	CPU (gfortran)	debug flags	default
`test-periodic-ghost-gnu`	CPU (gfortran)	—	default
`test-periodic-ghost-gnu-debug`	CPU (gfortran)	debug flags	default
`test-tree-closest-block-gnu`	CPU (gfortran)	—	default
`test-tree-closest-block-gnu-debug`	CPU (gfortran)	debug flags	default
`test-quadtree-seam-ghost-gnu`	CPU (gfortran)	—	default
`test-quadtree-seam-ghost-gnu-debug`	CPU (gfortran)	debug flags	default
`test-amr-regrid-roundtrip-gnu`	CPU (gfortran)	—	default
`test-amr-regrid-roundtrip-gnu-debug`	CPU (gfortran)	debug flags	default
`test-quadtree-seam-ghost-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-seam-interpolation-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-seam-interpolation-fnl-omp-amd`	FNL, OpenMP offload (amdflang)	—	AMD
`test-poisson-fft-gnu`	CPU (gfortran)	links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	default
`test-poisson-fft-gnu-debug`	CPU (gfortran)	debug flags, links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	default
`test-poisson-fft-fnl-nvf`	FNL, OpenACC (nvfortran)	links the FFT library of the self-gravity solvers (FFTW, cuFFT on nvfortran)	NVF
`test-poisson-mg-gnu`	CPU (gfortran)	—	default
`test-poisson-mg-gnu-debug`	CPU (gfortran)	debug flags	default
`test-poisson-mg-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-flail-bc-gnu`	CPU (gfortran)	—	default
`test-flail-bc-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF
`test-rk-ssp-tableau-gnu`	CPU (gfortran)	—	default
`test-rk-ssp-tableau-gnu-debug`	CPU (gfortran)	debug flags	default
`test-sgs-gnu`	CPU (gfortran)	—	default
`test-kep-gnu`	CPU (gfortran)	—	default
`test-wm-gnu`	CPU (gfortran)	—	default
`test-df-gnu`	CPU (gfortran)	—	default

Benchmarks

Mode	Backend	Variant	Varset
`bench-poisson-gnu`	CPU (gfortran)	—	default
`bench-poisson-fnl-nvf`	FNL, OpenACC (nvfortran)	—	NVF

Build modes ​

FLUME ​

PRISM ​

RIPPLE ​

ASCOT ​

NASTO ​

CHASE ​

PATCH ​

Library ​

Tests ​

Benchmarks ​