public static unsafe int AVXVecMin(int[] x)
{
int len = x.Length;
var min = Vector128.Create(int.MaxValue);
fixed(int *pSource = x)
{
int i = 0;
int lastBlockIndex = len - (len % 4);
while (i < lastBlockIndex)
{
min = Avx.Min(min, Avx.LoadVector128(pSource + i));
i += 4;
}
var minValue = min.ToScalar();
while (i < len)
{
minValue = MinBranchFree(minValue, pSource[i]);
i += 1;
}
return(minValue);
}
}
public static unsafe int AVXVecMinIndependent(int[] x)
{
int len = x.Length;
var min1 = Vector128.Create(int.MaxValue);
var min2 = Vector128.Create(int.MaxValue);
fixed(int *pSource = x)
{
int i = 0;
int lastBlockIndex = len - (len % 8);
while (i < lastBlockIndex)
{
min1 = Avx.Min(min1, Avx.LoadVector128(pSource + i));
min2 = Avx.Min(min2, Avx.LoadVector128(pSource + i + 4));
i += 8;
}
var minValue = min1.ToScalar() + min2.ToScalar();
while (i < len)
{
minValue = MinBranchFree(minValue, pSource[i]);
i += 1;
}
return(minValue);
}
}
public void RunStructFldScenario(SimpleBinaryOpTest__MinDouble testClass)
{
var result = Avx.Min(_fld1, _fld2);
Unsafe.Write(testClass._dataTable.outArrayPtr, result);
testClass.ValidateResult(_fld1, _fld2, testClass._dataTable.outArrayPtr);
}
private static void MinAvx(ReadOnlySpan <float> a, float b, Span <float> s)
{
var remainder = a.Length & 7;
var length = a.Length - remainder;
var scalar = Vector256.Create(b);
fixed(float *ptr = a)
{
fixed(float *ptrS = s)
{
for (var i = 0; i < length; i += 8)
{
var j = Avx.LoadVector256(ptr + i);
Avx.Store(ptrS + i, Avx.Min(j, scalar));
}
}
}
if (remainder != 0)
{
MinNaive(a, b, s, length, a.Length);
}
}
public static int AVXMin(int x, int y)
{
var v1 = Vector128.CreateScalarUnsafe(x);
var v2 = Vector128.CreateScalarUnsafe(y);
return(Avx.Min(v1, v2).ToScalar());
}
public void RunFldScenario()
{
var result = Avx.Min(_fld1, _fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_fld1, _fld2, _dataTable.outArrayPtr);
}
public void RunStructLclFldScenario()
{
var test = TestStruct.Create();
var result = Avx.Min(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
// Minimum value.
public static double Min(this IEnumerable <Vector256 <double> > @this)
{
var tmp = @this.Aggregate((x, y) => Avx.Min(x, y));
var tmp1 = Avx.Min(tmp.GetLower(), tmp.GetUpper());
var result = Math.Min(tmp1.GetElement(0), tmp1.GetElement(1));
return(result);
}
public void RunLclFldScenario()
{
var test = new SimpleBinaryOpTest__MinSingle();
var result = Avx.Min(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunClassFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassFldScenario));
var result = Avx.Min(_fld1, _fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_fld1, _fld2, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_UnsafeRead()
{
var left = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray1Ptr);
var right = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray2Ptr);
var result = Avx.Min(left, right);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(left, right, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_LoadAligned()
{
var left = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray1Ptr));
var right = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray2Ptr));
var result = Avx.Min(left, right);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(left, right, _dataTable.outArrayPtr);
}
public static Vector256 <double> Min(Vector256 <double> left, Vector256 <double> right)
{
if (Avx.IsSupported)
{
return(Avx.Min(left, right));
}
return(Min_Software(left, right));
}
public void RunStructLclFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunStructLclFldScenario));
var test = TestStruct.Create();
var result = Avx.Min(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunBasicScenario_UnsafeRead()
{
var result = Avx.Min(
Unsafe.Read <Vector256 <Single> >(_dataTable.inArray1Ptr),
Unsafe.Read <Vector256 <Single> >(_dataTable.inArray2Ptr)
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunClassLclFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassLclFldScenario));
var test = new SimpleBinaryOpTest__MinDouble();
var result = Avx.Min(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunBasicScenario_LoadAligned()
{
var result = Avx.Min(
Avx.LoadAlignedVector256((Single *)(_dataTable.inArray1Ptr)),
Avx.LoadAlignedVector256((Single *)(_dataTable.inArray2Ptr))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunClsVarScenario()
{
var result = Avx.Min(
_clsVar1,
_clsVar2
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_clsVar1, _clsVar2, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_UnsafeRead()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_UnsafeRead));
var op1 = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray1Ptr);
var op2 = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray2Ptr);
var result = Avx.Min(op1, op2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(op1, op2, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_UnsafeRead()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_UnsafeRead));
var left = Unsafe.Read <Vector256 <Double> >(_dataTable.inArray1Ptr);
var right = Unsafe.Read <Vector256 <Double> >(_dataTable.inArray2Ptr);
var result = Avx.Min(left, right);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(left, right, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_LoadAligned()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_LoadAligned));
var left = Avx.LoadAlignedVector256((Double *)(_dataTable.inArray1Ptr));
var right = Avx.LoadAlignedVector256((Double *)(_dataTable.inArray2Ptr));
var result = Avx.Min(left, right);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(left, right, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_LoadAligned()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_LoadAligned));
var op1 = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray1Ptr));
var op2 = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray2Ptr));
var result = Avx.Min(op1, op2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(op1, op2, _dataTable.outArrayPtr);
}
public void RunBasicScenario_UnsafeRead()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunBasicScenario_UnsafeRead));
var result = Avx.Min(
Unsafe.Read <Vector256 <Double> >(_dataTable.inArray1Ptr),
Unsafe.Read <Vector256 <Double> >(_dataTable.inArray2Ptr)
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunBasicScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunBasicScenario_Load));
var result = Avx.Min(
Avx.LoadVector256((Double *)(_dataTable.inArray1Ptr)),
Avx.LoadVector256((Double *)(_dataTable.inArray2Ptr))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunStructLclFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunStructLclFldScenario_Load));
var test = TestStruct.Create();
var result = Avx.Min(
Avx.LoadVector256((Double *)(&test._fld1)),
Avx.LoadVector256((Double *)(&test._fld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunStructFldScenario_Load(SimpleBinaryOpTest__MinDouble testClass)
{
fixed(Vector256 <Double> *pFld1 = &_fld1)
fixed(Vector256 <Double> *pFld2 = &_fld2)
{
var result = Avx.Min(
Avx.LoadVector256((Double *)(pFld1)),
Avx.LoadVector256((Double *)(pFld2))
);
Unsafe.Write(testClass._dataTable.outArrayPtr, result);
testClass.ValidateResult(_fld1, _fld2, testClass._dataTable.outArrayPtr);
}
}
public static unsafe double Min(this Matrix <double> matrix)
{
var i = 0;
fixed(double *ptr = matrix.GetArray())
{
var span = new Span <double>(ptr, matrix.Length);
var minScalar = span[0];
if (Avx.IsSupported)
{
var minValues = stackalloc double[] { span[0], span[0], span[0], span[0] };
var min = Avx.LoadVector256(minValues);
while (i < span.Length - 4)
{
var vector256 = Avx.LoadVector256(ptr + i);
min = Avx.Min(vector256, min);
i += 4;
}
minScalar = min.MinVector256(4);
}
else if (Sse2.IsSupported)
{
var minValues = stackalloc double[2] {
span[0], span[0]
};
var min = Sse2.LoadVector128(minValues);
while (i < span.Length - 2)
{
var vector128 = Sse2.LoadVector128(ptr + i);
min = Sse2.Min(vector128, min);
i += 2;
}
minScalar = min.MinVector128(2);
}
while (i < span.Length)
{
if (minScalar > span[i])
{
minScalar = span[i];
}
i++;
}
return(minScalar);
}
}
public void RunClassFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassFldScenario_Load));
fixed(Vector256 <Double> *pFld1 = &_fld1)
fixed(Vector256 <Double> *pFld2 = &_fld2)
{
var result = Avx.Min(
Avx.LoadVector256((Double *)(pFld1)),
Avx.LoadVector256((Double *)(pFld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_fld1, _fld2, _dataTable.outArrayPtr);
}
}
public void RunClsVarScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClsVarScenario_Load));
fixed(Vector256 <Single> *pClsVar1 = &_clsVar1)
fixed(Vector256 <Single> *pClsVar2 = &_clsVar2)
{
var result = Avx.Min(
Avx.LoadVector256((Single *)(pClsVar1)),
Avx.LoadVector256((Single *)(pClsVar2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_clsVar1, _clsVar2, _dataTable.outArrayPtr);
}
}
public void RunClassLclFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassLclFldScenario_Load));
var test = new SimpleBinaryOpTest__MinDouble();
fixed(Vector256 <Double> *pFld1 = &test._fld1)
fixed(Vector256 <Double> *pFld2 = &test._fld2)
{
var result = Avx.Min(
Avx.LoadVector256((Double *)(pFld1)),
Avx.LoadVector256((Double *)(pFld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
}
