Dell Technologies: ANSYS® Performance with AMD EPYC™ 7002 Series Processors

Table 4: Software Versions

 

ANSYS CFX Performance

ANSYS CFX software is a computational fluid dynamics (CFD) application recognized for its accuracy, robustness and speed with rotating machinery applications. 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. The benchmark results reported here are single-server performance results, with the benchmark run using all processor cores available in the server. Figure 1 shows the measured performance of the standard CFX benchmarks using CFX 2019R3. The performance for each benchmark is measured using the solver elapsed time.

Figure 1: ANSYS CFX Single Server Performance

The results in Figure 1 are plotted relative to the performance of a single server configured with AMD EPYC 7601 processors. Larger values indicate better overall performance. These results show the performance advantage available with 7002 series AMD EPYC processors. The 32-core AMD EPYC 7452 and 7502 processors 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 the LeMans and Pump benchmark cases.

 

ANSYS Fluent Performance

ANSYS Fluent is a computational fluid dynamics (CFD) application commonly used across a very wide range of CFD and multi-physics applications. 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 may have greater I/O demands, such as large transient analysis.

Fluent benchmark performance is measured using the Solver Rating metric which is the number of 25 iteration solves that can be completed in a day. That is, (total seconds in a day)/(25 iteration solve time in seconds). A higher value represents better performance. The benchmark results reported here are single-server performance results, with the benchmark run using all processor cores available in the server.  Figure 2 shows the measured performance for six of the ANSYS Fluent benchmarks.