StockSharp/StockSharp · error · ArgumentOutOfRangeException

parameters

Error message

parameters

What it means

ArgumentOutOfRangeException with ParamName="parameters", thrown by GpuMacdCalculator.Calculate at `if (parameters.Length == 0) throw new ArgumentOutOfRangeException(nameof(parameters))` (Algo.Gpu/Indicators/GpuMacdCalculator.cs:72). The Index2D MACD kernel iterates GpuMacdParams (fast/slow/signal triplets) on one axis, so at least one set is required; zero sets is a degenerate launch rejected before allocation.

Source

Thrown at Algo.Gpu/Indicators/GpuMacdCalculator.cs:72

	/// <param name="accelerator">ILGPU accelerator.</param>
	public GpuMacdCalculator(Context context, Accelerator accelerator)
		: base(context, accelerator)
	{
		_kernel = Accelerator.LoadAutoGroupedStreamKernel
			<Index2D, ArrayView<GpuCandle>, ArrayView<GpuIndicatorResult>, ArrayView<int>, ArrayView<int>, ArrayView<GpuMacdParams>>(MacdParamsSeriesKernel);
	}

	/// <inheritdoc />
	public override GpuIndicatorResult[][][] Calculate(GpuCandle[][] candlesSeries, GpuMacdParams[] parameters)
	{
		ArgumentNullException.ThrowIfNull(candlesSeries);
		ArgumentNullException.ThrowIfNull(parameters);

		if (candlesSeries.Length == 0)
			throw new ArgumentOutOfRangeException(nameof(candlesSeries));

		if (parameters.Length == 0)
			throw new ArgumentOutOfRangeException(nameof(parameters));

		var seriesCount = candlesSeries.Length;

		// Flatten input
		var totalSize = 0;
		var seriesOffsets = new int[seriesCount];
		var seriesLengths = new int[seriesCount];

		for (var s = 0; s < seriesCount; s++)
		{
			seriesOffsets[s] = totalSize;
			var len = candlesSeries[s]?.Length ?? 0;
			seriesLengths[s] = len;
			totalSize += len;
		}

		var flatCandles = new GpuCandle[totalSize];
		var offset = 0;

View on GitHub (pinned to 601a191de6)

Solutions

1. Guard the caller: require parameters.Length >= 1, else skip or throw a clearer domain exception.
2. Verify MACD parameter expansion yields at least one valid triplet.
3. Default to a standard MACD (e.g. 12/26/9) set when none are supplied.

Example fix

// before
var results = calc.Calculate(candlesSeries, parameters);

// after
if (parameters is null || parameters.Length == 0)
    throw new InvalidOperationException("At least one MACD parameter set is required.");
var results = calc.Calculate(candlesSeries, parameters);

if (parameters is null || parameters.Length == 0)
    throw new InvalidOperationException("At least one MACD parameter set is required.");
var results = calc.Calculate(candlesSeries, parameters);

static bool IsValidParams(GpuMacdParams[] p) => p is not null && p.Length > 0;

try { var r = calc.Calculate(candlesSeries, parameters); }
catch (ArgumentOutOfRangeException ex) when (ex.ParamName == "parameters")
{ /* surface config error */ }

When it happens

Trigger: Passing an empty GpuMacdParams[] — typically a fast/slow/signal sweep that produced no valid triplets, or an empty config block.

Common situations: Optimization grids fully filtered out; empty config; UI without MACD settings forwarded; tests omitting params.

Related errors

• candlesSeries
• candlesSeries
• parameters
• candlesSeries
• parameters

AI-assisted analysis of StockSharp/StockSharp@601a191de6 (2026-08-13). Data as JSON: /api/errors/f775e69f726bf663. Report an issue: GitHub.