Table 2.
Computational resources required for end-to-end BEYONDPLANCK processing.
| Item | 30 GHz | 44 GHz | 70 GHz | Sum | Reference |
|---|---|---|---|---|---|
| Data volume | |||||
| Uncompressed TOD volume | 761 GB | 1633 GB | 5522 GB | 7915 GB | |
| Compressed TOD volume | 86 GB | 178 GB | 597 GB | 861 GB | |
| Non-TOD-related RAM usage | 659 GB | ||||
| Total RAM requirements | 1520 GB | ||||
| Processing time (cost per run) | |||||
| TOD initialization/IO time | 3.8 h | 4.3 h | 12.5 h | 20.6 h | |
| Other initialization | 43.4 h | ||||
| Total initialization | 64.0 h | ||||
| Gibbs sampling steps (cost per sample) | |||||
| Huffman decompression | 1.1 h | 1.8 h | 7.1 h | 10.0 h | This paper |
| TOD projection (P operation) | 0.3 h | 0.7 h | 3.1 h | 4.1 h | BeyondPlanck Collaboration (2023) |
| Sidelobe evaluation (ssl) | 1.1 h | 2.1 h | 6.5 h | 9.7 h | Galloway et al. (2023) |
| Orbital dipole (sorb) | 0.5 h | 1.1 h | 4.6 h | 6.2 h | Gjerløw et al. (2023) |
| Gain sampling (g) | 0.6 h | 0.7 h | 4.7 h | 6.0 h | Gjerløw et al. (2023) |
| 1 Hz spike sampling (s1 hz) | 0.2 h | 0.3 h | 1.9 h | 2.4 h | BeyondPlanck Collaboration (2023) |
| Correlated noise sampling (ncorr) | 1.7 h | 3.6 h | 24.8 h | 30.1 h | Ihle et al. (2023) |
| Correlated noise PSD sampling (ξn) | 3.3 h | 4.0 h | 1.1 h | 8.4 h | Ihle et al. (2023) |
| TOD binning (Pt operation) | 0.2 h | 0.5 h | 4.1 h | 4.8 h | Basyrov et al. (2023) |
| Sum of other TOD processing | 1.3 h | 2.5 h | 10.9 h | 14.7 h | BeyondPlanck Collaboration (2023) |
| TOD processing cost per sample | 10.4 h | 17.4 h | 69.1 h | 96.9 h | |
| Amplitude sampling, P(a\ ∣ d, ω\ a) | 23.9 h | Andersen et al. (2023) | |||
| Spectral index sampling, P(β\ ∣ d, ω \β) | 40.3 h | Svalheim et al. (2023a) | |||
| Other steps | 0.6 h | BeyondPlanck Collaboration (2023) | |||
| Total cost per sample | 163.9 h |
Notes. All times correspond to CPU hours on 128 cores. All reported times are averaged over more than 100 samples and vary by ≲5% from sample to sample.
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