| // Copyright ©2019 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 testblas |
| |
| import ( |
| "fmt" |
| "testing" |
| |
| "golang.org/x/exp/rand" |
| "gonum.org/v1/gonum/blas" |
| ) |
| |
| type Zgemmer interface { |
| Zgemm(tA, tB blas.Transpose, m, n, k int, alpha complex128, a []complex128, lda int, b []complex128, ldb int, beta complex128, c []complex128, ldc int) |
| } |
| |
| func ZgemmTest(t *testing.T, impl Zgemmer) { |
| for _, tA := range []blas.Transpose{blas.NoTrans, blas.Trans, blas.ConjTrans} { |
| for _, tB := range []blas.Transpose{blas.NoTrans, blas.Trans, blas.ConjTrans} { |
| name := transString(tA) + "-" + transString(tB) |
| t.Run(name, func(t *testing.T) { |
| for _, m := range []int{0, 1, 2, 5, 10} { |
| for _, n := range []int{0, 1, 2, 5, 10} { |
| for _, k := range []int{0, 1, 2, 7, 11} { |
| zgemmTest(t, impl, tA, tB, m, n, k) |
| } |
| } |
| } |
| }) |
| } |
| } |
| } |
| |
| func zgemmTest(t *testing.T, impl Zgemmer, tA, tB blas.Transpose, m, n, k int) { |
| const tol = 1e-13 |
| |
| rnd := rand.New(rand.NewSource(1)) |
| |
| rowA, colA := m, k |
| if tA != blas.NoTrans { |
| rowA, colA = k, m |
| } |
| rowB, colB := k, n |
| if tB != blas.NoTrans { |
| rowB, colB = n, k |
| } |
| |
| for _, lda := range []int{max(1, colA), colA + 2} { |
| for _, ldb := range []int{max(1, colB), colB + 3} { |
| for _, ldc := range []int{max(1, n), n + 4} { |
| for _, alpha := range []complex128{0, 1, complex(0.7, -0.9)} { |
| for _, beta := range []complex128{0, 1, complex(1.3, -1.1)} { |
| // Allocate the matrix A and fill it with random numbers. |
| a := make([]complex128, rowA*lda) |
| for i := range a { |
| a[i] = rndComplex128(rnd) |
| } |
| // Create a copy of A. |
| aCopy := make([]complex128, len(a)) |
| copy(aCopy, a) |
| |
| // Allocate the matrix B and fill it with random numbers. |
| b := make([]complex128, rowB*ldb) |
| for i := range b { |
| b[i] = rndComplex128(rnd) |
| } |
| // Create a copy of B. |
| bCopy := make([]complex128, len(b)) |
| copy(bCopy, b) |
| |
| // Allocate the matrix C and fill it with random numbers. |
| c := make([]complex128, m*ldc) |
| for i := range c { |
| c[i] = rndComplex128(rnd) |
| } |
| |
| // Compute the expected result using an internal Zgemm implementation. |
| want := zmm(tA, tB, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc) |
| |
| // Compute a result using Zgemm. |
| impl.Zgemm(tA, tB, m, n, k, alpha, a, lda, b, ldb, beta, c, ldc) |
| |
| prefix := fmt.Sprintf("m=%v,n=%v,k=%v,lda=%v,ldb=%v,ldc=%v,alpha=%v,beta=%v", m, n, k, lda, ldb, ldc, alpha, beta) |
| |
| if !zsame(a, aCopy) { |
| t.Errorf("%v: unexpected modification of A", prefix) |
| continue |
| } |
| if !zsame(b, bCopy) { |
| t.Errorf("%v: unexpected modification of B", prefix) |
| continue |
| } |
| |
| if !zEqualApprox(c, want, tol) { |
| t.Errorf("%v: unexpected result,\nwant=%v\ngot =%v\n", prefix, want, c) |
| } |
| } |
| } |
| } |
| } |
| } |
| } |