Table 2 Communication time between the beamforming and pulse compression before optimization
Parameters | Values |
|---|---|
Number of SRIO packets to exchange between two DSP cores | Nr/16 × Nb |
Size of each SRIO packet | 8 bytes |
Time to send each SRIO packet using one lane (see Section 4.3.4) | 560 ns |
Communication time between two DSP cores using one SRIO lane | Nr/16 × Nb × 560 ns =287 μs |
Communication time between one DSP core and the 16 other DSP cores using one SRIO lane | 287 μs × 16 = 4.59 ms |
Total communication time between the two DSPs using one SRIO lane | 4.59 ms × 8 cores =36.72 ms |
Total communication time between the two DSPs using the four SRIO lane available | 36.72 ms / 4 = 9.18 ms |