Reference Guide

Altair AcuSolve Performance
14 Dell EMC Ready Solutions for HPC Digital Manufacturing with AMD EPYC™ Processors—Altair Performance
4 Altair AcuSolve Performance
Altair AcuSolve is a Computational Fluid Dynamics (CFD) tool commonly used across a very wide range of
CFD and multi-physics applications. AcuSolve is a robust solver with proprietary numerical methods that yield
stable simulations and accurate results regardless of the quality and topology of mesh elements. It uses a
single solver for all flow regimes, with very few parameters to adjust, and it produces rapid results by solving
the fully-coupled pressure/velocity equation system using scientifically proven numerical techniques. CFD
applications typically scale well across multiple processor cores and servers, have modest memory capacity
requirements, and typically perform minimal disk I/O while in the solver section. However, some simulations,
such as large transient analysis, may have greater I/O demands.
Figure 4 shows the relative single server performance of the CBB server types for three AcuSolve
benchmarks.
For comparison, the figure also includes performance data for PowerEdge R7425 systems using AMD EPYC
7451(24-core) and 7601(32-core) processors. Here performance was plotted in terms of the elapsed wall
time, where 1.0 was the value obtained with the 7451 based server (higher is better). The 32-core AMD
EPYC 7502 processor (and 7452) provide very good performance for these benchmarks. The 64-core AMD
EPYC 7702 provides a significant performance advantage over the 32-core processors, particularly for
smaller ‘riser’ benchmark, which benefits from the larger cache in the 7702 processor.
Figure 5 shows the parallel performance improvement for AcuSolve when running in parallel across multiple
servers.
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Riser Windmill Nozzle
Performance (relative to 7451)
Figure 4: AcuSolve Performance
7451 7601 7402 7452 7502 7702