Geophysical imaging faces nowadays new challenges related to 3D data acquisition, which means that we need to simulate full 3D volumes. In this work, we present a hybrid MPI/OpenMP approach for modeling the 3D heterogeneous acoustic wave equation to boost the performance of a classical extrapolation scheme. Our solution is a standard eighth order in space and second order in time 3D acoustic FD code, parallelized with MPI/OpenMP and running on Intel general-purpose CPUs. Test cases provided by the High-Performance Computing for Energy project (hpc4e.eu) are solved using our optimized numerical code. We experiment our solution using the flat acoustic tests at 20 Hz maximum frequency. These are codenamed AF-UNIT-20Hz and AF-SURVEY-20Hz. The first test is related to a single shot modeling and the second one simulates an acquisition considering 1681 shots in the subsurface. Results show that a hybrid MPI/OpenMP strategy used to solve the UNIT test in standard multi-core machines is easily scalable to more than one node for the SURVEY experiment. All experiments were run in Lobo Carneiro, a 6000 core machine installed at the High Performance Computing Center at the Federal University of Rio de Janeiro, Brazil.


Article metrics loading...

Loading full text...

Full text loading...


  1. Chapman, C. H.
    , 2004, Fundamentals of Seismic Wave Propagation: Cambridge University Press.
    [Google Scholar]
  2. Virieux, J.
    , 1986, P-SV wave propagation in heterogeneous media: Velocity-stress finite-difference method: Geophysics, 889–901.
    [Google Scholar]
  3. Intel
    Intel, 2013, ISA Extensions Intel® AVX - Intel Software: https://software.intel.com/en-us/isaextensions/intel-avx.
    [Google Scholar]
  4. Puente, J.
    , 2015, Website deploying a suite of geophysical tests for wave propagation problems on extreme scale machines: http://hpc4e.eu, HPC4E Consortium Partners.
    [Google Scholar]
  5. Cerjan, C., Kosloff, D., Kosloff, R., and Reshef, M.
    , 1985, A nonreflecting boundary condition for discrete acoustic and elastic wave equations: Geophysics, 705–708.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error