SMT Proves Worthwhile Option For 128-Core AMD EPYC "Bergamo" CPUs

Written by Michael Larabel in Processors on 20 July 2023 at 10:57 AM EDT. Page 3 of 8. 22 Comments.
Embree benchmark with settings of Binary: Pathtracer ISPC, Model: Crown. EPYC 9754 2P: SMT On was the fastest.
Embree benchmark with settings of Binary: Pathtracer ISPC, Model: Asian Dragon. EPYC 9754 2P: SMT On was the fastest.
OpenVKL benchmark with settings of Benchmark: vklBenchmark ISPC. EPYC 9754 2P: SMT On was the fastest.
OSPRay benchmark with settings of Benchmark: particle_volume/ao/real_time. EPYC 9754 2P: SMT On was the fastest.
OSPRay benchmark with settings of Benchmark: particle_volume/scivis/real_time. EPYC 9754 2P: SMT On was the fastest.
OSPRay benchmark with settings of Benchmark: gravity_spheres_volume/dim_512/scivis/real_time. EPYC 9754 2P: SMT On was the fastest.
OSPRay Studio benchmark with settings of Camera: 1, Resolution: 4K, Samples Per Pixel: 1, Renderer: Path Tracer. EPYC 9754 2P: SMT On was the fastest.
OSPRay Studio benchmark with settings of Camera: 3, Resolution: 4K, Samples Per Pixel: 1, Renderer: Path Tracer. EPYC 9754 2P: SMT On was the fastest.
OSPRay Studio benchmark with settings of Camera: 1, Resolution: 4K, Samples Per Pixel: 16, Renderer: Path Tracer. EPYC 9754 2P: SMT On was the fastest.
OSPRay Studio benchmark with settings of Camera: 3, Resolution: 4K, Samples Per Pixel: 32, Renderer: Path Tracer. EPYC 9754 2P: SMT On was the fastest.

Intel creator software part of their oneAPI rendering toolkit like OSPRay, OpenVKL, and Embree also benefited nicely from having SMT available with the AMD EPYC 9754 processor.

OSPRay Studio benchmark with settings of Camera: 3, Resolution: 4K, Samples Per Pixel: 32, Renderer: Path Tracer. EPYC 9754 2P: SMT On was the fastest.

Intel's OSPRay Studio was enjoying faster render times with SMT enabled for AMD EPYC Bergamo while only having a small impact on the CPU power consumption.

toyBrot Fractal Generator benchmark with settings of Implementation: TBB. EPYC 9754 2P: SMT On was the fastest.
toyBrot Fractal Generator benchmark with settings of Implementation: OpenMP. EPYC 9754 2P: SMT On was the fastest.

The toyBrot mandelbrot fractal generator did enjoy significant speed-ups with SMT enabled on Bergamo.


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