subroutine dget32 (rmax, lmax, ninfo, knt)
DGET32
DGET32
Purpose:
DGET32 tests DLASY2, a routine for solving
op(TL)*X + ISGN*X*op(TR) = SCALE*B
where TL is N1 by N1, TR is N2 by N2, and N1,N2 =1 or 2 only.
X and B are N1 by N2, op() is an optional transpose, an
ISGN = 1 or -1. SCALE is chosen less than or equal to 1 to
avoid overflow in X.
The test condition is that the scaled residual
norm( op(TL)*X + ISGN*X*op(TR) = SCALE*B )
/ ( max( ulp*norm(TL), ulp*norm(TR)) * norm(X), SMLNUM )
should be on the order of 1. Here, ulp is the machine precision.
Also, it is verified that SCALE is less than or equal to 1, and
that XNORM = infinity-norm(X).
Parameters
RMAX
RMAX is DOUBLE PRECISION
Value of the largest test ratio.
LMAX
LMAX is INTEGER
Example number where largest test ratio achieved.
NINFO
NINFO is INTEGER
Number of examples returned with INFO.NE.0.
KNT
KNT is INTEGER
Total number of examples tested.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 81 of file dget32.f.
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