public static IList<NArray> Evaluate(Func<NArray> function, IList<NArray> independentVariables, StringBuilder expressionsOut = null,
Aggregator aggregator = Aggregator.ElementwiseAdd, IList<NArray> existingStorage = null, VectorExecutionOptions vectorOptions = null)
{
if (existingStorage != null && existingStorage.Count != independentVariables.Count + 1)
throw new ArgumentException(string.Format("storage provided does not match requirement for 1 result and {0} derivatives",
independentVariables.Count));
var timer = new ExecutionTimer();
timer.Start();
NArray[] outputs = new NArray[independentVariables.Count + 1];
var context = new DeferredExecutionContext(new VectorExecutionOptions(), independentVariables);
NArray dependentVariable;
try
{
// execute function as deferred operations and obtain reference to the dependentVariable
dependentVariable = function();
}
finally
{
context.Finish();
}
timer.MarkFunctionComplete();
for (int i = 0; i < outputs.Length; ++i)
{
// if new storage is required, we create scalars in the first instance
outputs[i] = (existingStorage == null) ? NArray.CreateScalar(0) : existingStorage[i];
}
context._executor.Evaluate(context._options, outputs, dependentVariable, independentVariables,
timer, expressionsOut, aggregator);
//Console.WriteLine(timer.Report());
return outputs;
}
public static IList <NArray> Evaluate(Func <NArray> function, IList <NArray> independentVariables, StringBuilder expressionsOut = null,
Aggregator aggregator = Aggregator.ElementwiseAdd, IList <NArray> existingStorage = null, VectorExecutionOptions vectorOptions = null)
{
if (existingStorage != null && existingStorage.Count != independentVariables.Count + 1)
{
throw new ArgumentException(string.Format("storage provided does not match requirement for 1 result and {0} derivatives",
independentVariables.Count));
}
var timer = new ExecutionTimer();
timer.Start();
NArray[] outputs = new NArray[independentVariables.Count + 1];
var context = new DeferredExecutionContext(new VectorExecutionOptions(), independentVariables);
NArray dependentVariable;
try
{
// execute function as deferred operations and obtain reference to the dependentVariable
dependentVariable = function();
}
finally
{
context.Finish();
}
timer.MarkFunctionComplete();
for (int i = 0; i < outputs.Length; ++i)
{
// if new storage is required, we create scalars in the first instance
outputs[i] = (existingStorage == null) ? NArray.CreateScalar(0) : existingStorage[i];
}
context._executor.Evaluate(context._options, outputs, dependentVariable, independentVariables,
timer, expressionsOut, aggregator);
//Console.WriteLine(timer.Report());
return(outputs);
}
