public interface larrv
LARRV computes the eigenvectors of the tridiagonal matrix
T = L D LT given L, D and APPROXIMATIONS to the eigenvalues of L D LT.
The input eigenvalues should have been computed by SLARRE.
Subroutines
Arguments
| Type |
Intent | Optional | Attributes |
|
Name |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
n |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
vl |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
vu |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
d(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
l(*) |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
pivmin |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
isplit(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
m |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dol |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dou |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
minrgp |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
rtol1 |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
rtol2 |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
w(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
werr(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
wgap(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
iblock(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
indexw(*) |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
gers(*) |
|
|
complex(kind=sp),
|
intent(out) |
|
|
:: |
z(ldz,*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
ldz |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
isuppz(*) |
|
|
real(kind=sp),
|
intent(out) |
|
|
:: |
work(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
iwork(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
info |
|
Arguments
| Type |
Intent | Optional | Attributes |
|
Name |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
n |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
vl |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
vu |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
d(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
l(*) |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
pivmin |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
isplit(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
m |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dol |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dou |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
minrgp |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
rtol1 |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
rtol2 |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
w(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
werr(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
wgap(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
iblock(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
indexw(*) |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
gers(*) |
|
|
real(kind=dp),
|
intent(out) |
|
|
:: |
z(ldz,*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
ldz |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
isuppz(*) |
|
|
real(kind=dp),
|
intent(out) |
|
|
:: |
work(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
iwork(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
info |
|
Arguments
| Type |
Intent | Optional | Attributes |
|
Name |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
n |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
vl |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
vu |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
d(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
l(*) |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
pivmin |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
isplit(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
m |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dol |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dou |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
minrgp |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
rtol1 |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
rtol2 |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
w(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
werr(*) |
|
|
real(kind=sp),
|
intent(inout) |
|
|
:: |
wgap(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
iblock(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
indexw(*) |
|
|
real(kind=sp),
|
intent(in) |
|
|
:: |
gers(*) |
|
|
real(kind=sp),
|
intent(out) |
|
|
:: |
z(ldz,*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
ldz |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
isuppz(*) |
|
|
real(kind=sp),
|
intent(out) |
|
|
:: |
work(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
iwork(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
info |
|
Arguments
| Type |
Intent | Optional | Attributes |
|
Name |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
n |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
vl |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
vu |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
d(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
l(*) |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
pivmin |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
isplit(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
m |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dol |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
dou |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
minrgp |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
rtol1 |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
rtol2 |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
w(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
werr(*) |
|
|
real(kind=dp),
|
intent(inout) |
|
|
:: |
wgap(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
iblock(*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
indexw(*) |
|
|
real(kind=dp),
|
intent(in) |
|
|
:: |
gers(*) |
|
|
complex(kind=dp),
|
intent(out) |
|
|
:: |
z(ldz,*) |
|
|
integer(kind=ilp),
|
intent(in) |
|
|
:: |
ldz |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
isuppz(*) |
|
|
real(kind=dp),
|
intent(out) |
|
|
:: |
work(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
iwork(*) |
|
|
integer(kind=ilp),
|
intent(out) |
|
|
:: |
info |
|
Module Procedures