Table 4 Characteristics of preconditioned (deflated) coefficient matrices, and of PCG and DPCG methods for the field dataset
From: Deflated preconditioned conjugate gradient method for solving single-step BLUP models efficiently
Model | Methoda | Smallest eigenvalue | Largest eigenvalue | Effective condition number | Number of iterationsb | Total timec | Time/iterationd |
|---|---|---|---|---|---|---|---|
ssGBLUP | PCG | 2.3 × 10−5 | 5.1 | 2.2 × 105 | 729 | 3993 | 5.3 (0.4) |
ssSNPBLUP | PCG | 3.7 × 10−5 | 1751.9 | 4.7 × 107 | 10,000 | 52,683 | 4.4 (0.4) |
DPCG (200) | 1.2 × 10−5 | 193.1 | 1.6 × 107 | 10,000 | 92,171 | 9.2 (1.4) | |
DPCG (50) | 8.7 × 10−6 | 29.9 | 3.4 × 106 | 6074 | 52,503 | 8.6 (2.4) | |
DPCG (5) | 2.9 × 10−5 | 4.8 | 1.7 × 105 | 748 | 7735 | 8.7 (0.3) | |
ssPCBLUPe | PCG | 1.2 × 10−5 | 220.0 | 1.8 × 107 | 10,000 | 30,198 | 2.9 (0.2) |
DPCG (200) | 8.3 × 10−6 | 113.3 | 1.4 × 107 | 10,000 | 58,280 | 5.8 (0.7) | |
DPCG (50) | 7.7 × 10−6 | 46.0 | 6.0 × 106 | 8541 | 55,388 | 6.5 (0.5) | |
DPCG (5) | 8.0 × 10−6 | 5.1 | 6.4 × 105 | 2686 | 15,063 | 5.6 (0.2) | |
DPCG (1) | 9.6 × 10−4 | 4.8 | 4.9 × 104 | 375 | 2402 | 6.3 (0.2) |