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Paolo Giannozzi1, Oscar Baseggio2, Pietro Bonfà3

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Quantum ESPRESSO, a materials modeling code, is being ported to hardware accelerators. This effort aims to overcome energy limitations for exascale computing.

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Area of Science:

  • Computational Materials Science
  • Quantum Mechanics
  • High-Performance Computing

Background:

  • Quantum ESPRESSO is a widely used open-source software for quantum-mechanical materials modeling.
  • It relies on density-functional theory, pseudopotentials, and plane waves.
  • Current hardware architectures face energy constraints for exascale computing.

Purpose of the Study:

  • To present the motivation for porting Quantum ESPRESSO to heterogeneous architectures.
  • To review the ongoing efforts in adapting the code for hardware accelerators.
  • To address energy efficiency challenges in materials modeling for exascale.

Main Methods:

  • Porting the Quantum ESPRESSO code to heterogeneous computing architectures.
  • Leveraging hardware accelerators (e.g., GPUs, FPGAs) for computation.
  • Benchmarking performance and energy consumption on diverse hardware.

Main Results:

  • Demonstration of Quantum ESPRESSO's adaptability to hardware accelerators.
  • Identification of performance gains and energy savings through acceleration.
  • Validation of the approach for future exascale systems.

Conclusions:

  • Porting Quantum ESPRESSO to hardware accelerators is crucial for advancing materials modeling.
  • This strategy will enable more energy-efficient and powerful simulations.
  • The work paves the way for achieving exascale computing in materials science.