Table 1.

Characteristics of different ssSNPBLUP systems

Characteristic	ssSNPBLUP_Liu (Plink)a	ssSNPBLUP_Liu (DP)b	ssSNPBLUP_MSc
Number of iterations	3,358	3,359	6,334
Smallest eigenvalue	$2.304\ast {10}^{-6}$	$2.304\ast {10}^{-6}$	$1.989\ast {10}^{-6}$
Largest eigenvalue	3.813	3.813	5.194
Spectral condition number	$1.655\ast {10}^6$	$1.655\ast {10}^6$	$2.612\ast {10}^6$
Software peak memory (MB)d	18,120.7	89,615.7	27,780.3

^assSNPBLUP model proposed by Liu et al. [9] and using the Plink 1 binary form; or ^b using double precision reals; ^cssSNPBLUP model proposed by Mantysaari and Stranden [11] and using the Plink 1 binary form; ^dThe software peak memory is defined as the peak resident size (VmHWM) obtained from the Linux /proc virtual file system