APE computers are developed to satisfy the huge amounts of compute power in theoretical particle physics in a cost-efficient way. Since many years these kind of massively-parallel computers have played an important role for simulations of Quantum Chromodynamics (QCD), the theory of strong interactions.

The APE machines are based on the simple but efficient Single Instruction Multiple Data (SIMD) architecture. The custom designed VLIW processors are application optimized. Due to a powerful 3-dimensional communication network the APE architectures are highly scalable.

Here is a brief overview on the various generations of APE machines:

  • APE1 had a peak performance of 1 GFlops and started physics production in 1987.

  • The second generation of APE computers, APE100 with a peak performance up to 100 GFlops came into operation 1994.

  • Large APEmille installations have been installed at various European sites since 2000 with an overall peak performance of 2 TFlops.

  • Deployment of multi-Tflops apeNEXT installations started in autumn 2005.

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