private static void TestDgemv()
{
Skip.IfNot(TestSettings.TestMkl, TestSettings.MessageWhenSkippingMKL);
CBLAS_LAYOUT layout = CBLAS_LAYOUT.CblasColMajor;
CBLAS_TRANSPOSE transA = CBLAS_TRANSPOSE.CblasNoTrans;
double alpha = 1.0;
double beta = 0.0;
int incX = 1;
int incY = 1;
int m = RectangularFullRank10by5.NumRows;
int n = RectangularFullRank10by5.NumCols;
int ldA = m;
double[] A = Conversions.Array2DToFullColMajor(RectangularFullRank10by5.Matrix);
double[] X = RectangularFullRank10by5.Lhs5;
double[] Y = new double[m];
LapackePInvokes.Dgemv(layout, transA, m, n, alpha, A, ldA, X, incX, beta, Y, incY);
comparer.AssertEqual(RectangularFullRank10by5.Rhs10, Y);
}
internal static void TestDgetrf_Dgetrs()
{
Skip.IfNot(TestSettings.TestMkl, TestSettings.MessageWhenSkippingMKL);
int layout = LapackePInvokes.LAPACK_COL_MAJOR;
char transA = LapackePInvokes.LAPACK_NO_TRANSPOSE;
int m = SquareInvertible10by10.Order;
int n = m;
int minDim = m < n ? m : n;
int ldA = m;
double[] A = Conversions.Array2DToFullColMajor(SquareInvertible10by10.Matrix); // will be overwritten with LU
int[] iPiv = new int[minDim];
int nRhs = 1;
double[] B = new double[n];
Array.Copy(SquareInvertible10by10.Rhs, B, n); // will be overwritten with solution
int ldB = n;
int infoFact = LapackUtilities.DefaultInfo;
infoFact = LapackePInvokes.Dgetrf(layout, m, n, A, ldA, iPiv);
Assert.True(infoFact == 0);
//Console.Write("LAPACKE.Dgetrf() result: ");
//if (infoFact == MklUtilities.DefaultInfo)
//{
// // first check the default info value, since it lies in the other intervals.
// // info == default => the MKL call did not succeed.
// // info > 0 should not be returned at all by MKL, but it is here for completion.
// Console.WriteLine("Something went wrong with the MKL call."
// + " Please contact the developer responsible for the linear algebra project.");
//}
//else if (infoFact < 0)
//{
// Console.WriteLine($"The {-infoFact}th parameter has an illegal value."
// + " Please contact the developer responsible for the linear algebra project.");
//}
//else if (infoFact > 0)
//{
// Console.WriteLine("The factorization has been completed, but U is singular."
// + $" The first zero pivot is U[{infoFact - 1}, {infoFact - 1}] = 0.");
//}
//else Console.WriteLine("LAPACKE.Dgetrf() was successful");
int infoSolve = LapackUtilities.DefaultInfo;
infoSolve = LapackePInvokes.Dgetrs(layout, transA, n, nRhs, A, ldA, iPiv, B, ldB);
Assert.True(infoSolve == 0);
//Console.Write("LAPACKE.Dgetrs() result: ");
//if (infoSolve == MklUtilities.DefaultInfo)
//{
// // first check the default info value, since it lies in the other intervals.
// // info == default => the MKL call did not succeed.
// // info > 0 should not be returned at all by MKL, but it is here for completion.
// Console.WriteLine("Something went wrong with the MKL call."
// + " Please contact the developer responsible for the linear algebra project.");
//}
//else if (infoSolve < 0)
//{
// Console.WriteLine($"The {-infoSolve}th parameter has an illegal value."
// + " Please contact the developer responsible for the linear algebra project.");
//}
comparer.AssertEqual(SquareInvertible10by10.Lhs, B);
}