mirror of
https://github.com/gonum/gonum.git
synced 2025-10-05 23:26:52 +08:00
929014505b
Reorder vector and matrix struct fields to match the order in which BLAS routines accept them. This makes calls with inline declarations with unnamed fields consistent and easier to understand.
56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
// Copyright ©2016 The Gonum Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package testlapack
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"golang.org/x/exp/rand"
|
|
|
|
"gonum.org/v1/gonum/blas/blas64"
|
|
)
|
|
|
|
type Dorg2ler interface {
|
|
Dorg2l(m, n, k int, a []float64, lda int, tau, work []float64)
|
|
Dgeql2er
|
|
}
|
|
|
|
func Dorg2lTest(t *testing.T, impl Dorg2ler) {
|
|
rnd := rand.New(rand.NewSource(1))
|
|
for _, test := range []struct {
|
|
m, n, k, lda int
|
|
}{
|
|
{5, 4, 3, 0},
|
|
{5, 4, 4, 0},
|
|
{3, 3, 2, 0},
|
|
{5, 5, 5, 0},
|
|
{5, 4, 3, 11},
|
|
{5, 4, 4, 11},
|
|
{3, 3, 2, 11},
|
|
{5, 5, 5, 11},
|
|
} {
|
|
m := test.m
|
|
n := test.n
|
|
k := test.k
|
|
lda := test.lda
|
|
if lda == 0 {
|
|
lda = n
|
|
}
|
|
|
|
a := make([]float64, m*lda)
|
|
for i := range a {
|
|
a[i] = rnd.NormFloat64()
|
|
}
|
|
tau := nanSlice(max(m, n))
|
|
work := make([]float64, n)
|
|
impl.Dgeql2(m, n, a, lda, tau, work)
|
|
|
|
impl.Dorg2l(m, n, k, a, lda, tau[n-k:], work)
|
|
if !hasOrthonormalColumns(blas64.General{m, n, a, lda}) {
|
|
t.Errorf("Case m=%v, n=%v, k=%v: columns of Q not orthonormal", m, n, k)
|
|
}
|
|
}
|
|
}
|