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configuration the HPL acceleration for configuration C with 4 Xeon phis is 5.3X and for configuration D with 2 Xeon
phis, it is 3.3X.
Figure 3: Total power and performance/watt on the C4130 configurations.
Figure 3 shows the associated power consumption data of the HPL runs for CPU-only configuration, Configuration
C and D. In general, accelerators can consume substantial power when loaded with compute-intensive workloads.
The power consumption of CPU-only configuration is 520W whereas the power consumption increases for
configurations C and D. Each Intel Xeon PHI 7120P co-processor can consume power up to 300 watts. The power
consumption for configuration C and D is 3.3X and 2.1X respectively when compared to the CPU-only
configuration.
The Intel Xeon Phi 7120P co-processor provides high performance, memory capacity and good performance-per-
watt metrics. Configuration C shows a performance-per-watt of 2.44 GFLOPS/w and configuration D shows 2.34
GFLOPS/w whereas CPU-only configuration gives 1.56 GFLOPS/w.