Higher Performance Across a Wide Range of ANSYS Fluent* Simulations

The Intel® Xeon® Gold 6148 processor boosts performance for ANSYS Fluent* 18.1 by up to 41 percent versus a previous-generation processor—and provides up to 34 percent higher performance per core.1

ANSYS Fluent* is a general purpose CFD and multiphysics solver widely used in automotive manufacturing, aerospace, academia, and Formula 1 racing. Typical workload sizes range from 2 million to 500 million cells. Fluent scalability has been demonstrated to 1000s of Intel® Xeon® processors with Intel® Omni-Path Fabric.

Hardware at-a-glance: Intel® Xeon® Gold 6148 processor

Software tools and libraries at-a-glance: Intel® Parallel Studio XE Cluster Edition

Designers and engineers invariably want more from their simulations—more detail, more variables, greater accuracy, and faster time to results. ANSYS Fluent* 18.1 and Intel® Xeon® Scalable processors address these needs by delivering powerful performance gains for engineering simulations, including per-core gains that help to speed performance while containing software licensing costs.

A Major Leap in Simulation Performance
The Intel® Xeon® Gold 6148 processor includes more cores, higher memory bandwidth, and an enhanced cache structure compared to the previous-generation Intel® Xeon® processor E5 v4 product family. ANSYS and Intel worked together to optimize ANSYS Fluent 18.1 for these and other new hardware features, using Intel® software development products to help ensure that the additional processing power delivers meaningful performance gains for real-world simulations.

“ANSYS teamed with Intel to make sure software and hardware improvements go hand in hand. The latest combination of ANSYS Fluent* 18.1 and Intel® Xeon® Gold 6148 processor is a clearly testament of impressive overall performance gains achieved for customers who want to increase their engineering productivity.”

A key focus of the optimization effort was to improve vectorization in the solver code to take better advantage of the advanced vector processing capabilities of Intel® Xeon® processors. The improved vectorization, which is available as a runtime option in Fluent 18.1, was used in these benchmarks.

To verify performance with the new processors, benchmark tests were run using a variety of models targeting different industries and ranging in size from two million to 33 million cells. Results showed that a two-socket server based on the new Intel® Xeon® Gold 6148 processor can improve performance for ANSYS Fluent by as much as 41 percent1 versus a previous-generation server based on the Intel® Xeon® processor E5-2697 v4, and by as much as 60 percent1 versus a comparable server based on the earlier Intel® Xeon® processor E5-2698 v3.

Significant Per-Core Performance Improvement
Tests were also run to measure per-core performance across each of the three processor generations (using 32 cores in each test). The Intel® Xeon® Gold 6148 processor provided up to 34 percent1 higher performance per core than the previous generation Intel® Xeon® processor E5-2697 v4 and up to 46 percent1 higher performance per core than the Intel® Xeon® processor E5-2698 v3. Because ANSYS licenses its software based on the number of cores in use, these results indicate the types of gains customers can potentially achieve without increasing their licensing costs.

Efficient Cluster Scaling to Support the Most Demanding CFD Models
Intel® MPI is integrated into the ANSYS Fluent release. Together, ANSYS Fluent and Intel® MPI are designed to provide high performance that scales seamlessly from multi-core workstations to clusters with thousands of cores (the benchmark results demonstrate performance in single-node scenarios).

For customers moving to clustered architectures, Intel® Omni-Path Architecture (Intel® OPA) provides a high performance, low-latency fabric that helps to resolve the performance, scalability, and cost challenges of traditional InfiniBand* solutions.

View the infographic ›

Take the Next Step
With ANSYS 18.1, the Intel® Xeon® Gold 6148 processor, and Intel OPA, engineering and design teams can get higher value from their engineering simulations today, and scale their computing infrastructure as needed to maintain fast runtimes as their models grow in complexity.

Product and Performance Information


Source: Intel internal testing, March 2017.

Baseline: 2x Intel® Xeon® processor E5-2698 v3 (16 cores, 2.3 GHz), 128 GB total memory (8x 16 GB @ 2133 MT/s DDR4), Red Hat Enterprise Linux* 7.3.

Next-gen: 2x Intel® Xeon® processor E5-2697 v4 (18 cores, 2.3 GHz), 128 GB total memory (8x 16 GB @ 2400 MT/s DDR4), Red Hat Enterprise Linux* 7.3.

New: 2x Intel® Xeon® Gold 6148 processor (20 cores, 2.4 GHz), 192 GB total memory (12x 16 GB @ 2666 MT/s DDR4), Red Hat Enterprise Linux* 7.3.


Software and workloads used in performance tests may have been optimized for performance only on Intel® microprocessors. Performance tests, such as SYSmark* and MobileMark*, are measured using specific computer systems, components, software, operations and functions. Any change to any of those factors may cause the results to vary. You should consult other information and performance tests to assist you in fully evaluating your contemplated purchases, including the performance of that product when combined with other products. For more complete information about performance and benchmark results, visit http://www.intel.com/benchmarks.