The software package SPECFEM3D simulates three-dimensional global and regional seismic wave propagation based upon the spectral-element method (SEM). All SPECFEM3D_GLOBE software is written in Fortran90 with full portability in mind, and conforms strictly to the Fortran95 standard. It uses no obsolete or obsolescent features of Fortran77. The package uses parallel programming based upon the Message Passing Interface (MPI).
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## Purpose of Benchmark
The software package SPECFEM3D_GLOBE simulates three-dimensional global and regional seismic wave propagation and performs full waveform imaging (FWI) or adjoint tomography based upon the spectral-element method (SEM).
The test cases simulate the earthquake of June 1994 in Northern Bolivia at a global scale with the global shear-wave speed model named s362ani.
Test Case A is designed to run on Tier-1 sized systems (up to around 1,000 x86 cores, or equivalent), Test Case B is designed to run on Tier-0 sized systems (up to around 10,000 x86 cores, or equivalent) and
finally a small validation test case called "small_benchmark_run_to_test_more_complex_Earth" which is a native specfem3D_globe benchmark to validate the behavior of code designed to run on a 24 MPI processes(1 node)".
Test Case A is designed to run on a system that has up to about 1,000 x86 cores, or equivalent, Test Case B is designed to run on systems up to about 10,000 x86 cores, or equivalent and finally a small validation test case called "small_benchmark_run_to_test_more_complex_Earth" which is a native specfem3D_globe benchmark to validate the behavior of code designed to run on a 24 MPI processes(1 node)".
## Mechanics of Building Benchmark
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## Validation
To validate the quality of the compilation and the functioning of the code on your machine, we will use the small validation test case (warning, **Pyhton and numpy are required**).
To validate the quality of the compilation and the functioning of the code on your machine, we will use the small validation test case (warning, **Pyhton 2.7 and numpy are required**).
You must first run the small validation test case and have results in the "OUTPUT_FILES" folder (i.e. the 387 seismograms produced).
```shell
ls specfem3d_globe/EXAMPLES/small_benchmark_run_to_test_more_complex_Earth/OUTPUT_FILES/*.ascii | wc-l
