Table 2.
Weak scaling performance of NEURON (seconds) on BG/P in Virtual Node mode.
| Cores | Cells | Conn. | MPI_Allgather | MPI_ISend | DCMF_Multicast | Record-Replay | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Comp | Run | Comp | Run | Comp | Run | Comp | Run | |||
| 8 K | 2 M | 1 K | 6.76 | 7.84 | 22.3 | 24.9 | 7.30 | 7.74 | 6.30 | 6.99 |
| 16 K | 4 M | 1 k | 7.99 | 9.95 | 22.8 | 25.7 | 7.42 | 7.89 | 6.33 | 7.27 |
| 32 K | 8 M | 1 k | 10.3 | 14.2 | 23.2 | 26.2 | 7.41 | 7.95 | 6.36 | 7.25 |
| 64 K | 16 M | 1 k | 15.1 | 23.8 | 23.5 | 26.5 | 7.50 | 8.00 | 6.44 | 7.34 |
| 128 K | 32 M | 1 k | - | - | 23.4 | 26.7 | 7.51 | 8.12 | 6.41 | 7.38 |
| 8 K | 1/4 M | 10 k | 5.23 | 5.64 | 18.5 | 21.5 | 6.50 | 6.90 | 5.81 | 6.58 |
| 16 K | 1/2 M | 10 k | 6.14 | 6.83 | 22.4 | 27.1 | 7.50 | 8.10 | 6.72 | 7.83 |
| 32 K | 1 M | 10 k | 7.00 | 8.29 | 25.2 | 30.6 | 8.06 | 8.93 | 7.21 | 8.35 |
| 64 K | 2 M | 10 k | 8.33 | 10.5 | 29.8 | 32.9 | 8.76 | 9.21 | 7.45 | 8.94 |
| 128 K | 4 M | 10 k | 10.7 | 14.9 | 27.4 | 35.4 | 8.54 | 9.38 | 7.52 | 9.51 |
Meaning of the columns is the same as in Table 1.