The original program was written by Shogo Tsuruta in 1999.

BLUP90IOD2 is a BLUP program for solving a large number of mixed model equations, using preconditioned conjugate gradient (PCG).

OPTION conv_crit 1e-12

Set convergence criteria (deault 1e-12).

OPTION maxrounds 10000

Set maximum number of rounds (default 1000).

OPTION blksize 3

Set block size for preconditioner (default 1).

OPTION init_eq 10

Set the number of effects to be solved directly (default=0)

OPTION cont 1

To restart the program from the previous solutions

OPTION missing -1

Set the missing value (default 0).

OPTION restart 100

Set the number of iteration to recompute residuals (default=100)

OPTION SNP_file snps

implement one-step genomic selection updating animal effects with genomic relationship matrix (H-Inverse)

For information on availability of BLUP90IOD, please contact Ignacy Misztal (ignacy@uga.edu) at the University of Georgia.