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FP64 single core comparison against x86, reporting number of times faster or slower than the baseline SG2042
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The Sophon SG2042 is the world's first commodity 64-core RISC-V CPU for high performance workloads and an important question is whether the SG2042 has the potential to encourage the HPC community to embrace RISC-V. In this paper we undertaking a performance exploration of the SG2042 against existing RISC-V hardware and high performance x86 CPUs in...
Contexts in source publication
Context 1
... all systems we execute over the most performant number of threads, on all the x86 systems this was found to be the same as the number of physical cores, whereas for the SG2042 it was demonstrated in Section 3.2 that for some benchmark classes 32 threads provided better performance compared to 64 threads. Figure 4 reports single core performance running the benchmark suite at FP64 for the x86 CPUs baselined against the SG2042. This graph is organised the same way as the RISC-V commodity hardware comparison graph, where the bars are the average number of times faster or slower across the class, and whiskers range from the maximum to the minimum. ...
Context 2
... the average bars in Figure 5 do not provide a complete picture. As described in Section 3.2, the C920 only supports vectorisation for FP32 and indeed it can be seen from the whiskers in Fig- ures 5 and 4 that the maximum times faster is less for many benchmarks classes at FP32 than FP64. Furthermore, there are more slowest running kernels that perform slower on the x86 CPUs than the C920 at FP32. ...
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