protected override int AnalyzeInternal(
GaloisField field,
int informationWordLength,
Func <int[], FieldElement[]> encodingProcedure,
CodeDistanceAnalyzerOptions options)
{
var processedPairsCount = 0L;
var codeDistance = int.MaxValue;
Parallel.ForEach(
GenerateMappings(field, encodingProcedure, new int[informationWordLength], 0),
new ParallelOptions {
MaxDegreeOfParallelism = options.MaxDegreeOfParallelism
},
() => int.MaxValue,
(mapping, loopState, localCodeDistance) =>
{
foreach (var(_, codeword) in GenerateMappings(field, encodingProcedure, mapping.informationWord, 0).Skip(1))
{
if (Interlocked.Increment(ref processedPairsCount) % options.LoggingResolution == 0)
{
Logger.LogInformation("Processed {processedPairsCount} pairs, code distance {codeDistance}", processedPairsCount, localCodeDistance);
}
localCodeDistance = Math.Min(localCodeDistance, mapping.codeword.ComputeHammingDistance(codeword));
}
return(localCodeDistance);
},
protected override int AnalyzeInternal(
GaloisField field,
int informationWordLength,
Func <int[], FieldElement[]> encodingProcedure,
CodeDistanceAnalyzerOptions options)
{
var processedCodewords = 0L;
var codeDistance = int.MaxValue;
Parallel.ForEach(
GenerateMappings(field, encodingProcedure, new int[informationWordLength], 0).Skip(1),
new ParallelOptions {
MaxDegreeOfParallelism = options.MaxDegreeOfParallelism
},
() => int.MaxValue,
(mapping, loopState, localCodeDistance) =>
{
if (Interlocked.Increment(ref processedCodewords) % options.LoggingResolution == 0)
{
Logger.LogInformation("Processed {processedCodewords} pairs, code distance {codeDistance}", processedCodewords, localCodeDistance);
}
var distance = mapping.codeword.Count(x => x.Representation != 0);
return(Math.Min(localCodeDistance, distance));
},
localCodeDistance => { codeDistance = Math.Min(codeDistance, localCodeDistance); }
);
return(codeDistance);
}
public int Analyze(
GaloisField field,
int informationWordLength,
Func <int[], FieldElement[]> encodingProcedure,
CodeDistanceAnalyzerOptions options = null)
{
if (field == null)
{
throw new ArgumentNullException(nameof(field));
}
if (informationWordLength <= 0)
{
throw new ArgumentException($"{nameof(informationWordLength)} must be positive");
}
if (encodingProcedure == null)
{
throw new ArgumentNullException(nameof(encodingProcedure));
}
var opts = options ?? new CodeDistanceAnalyzerOptions();
return(AnalyzeInternal(field, informationWordLength, encodingProcedure, opts));
}
protected abstract int AnalyzeInternal(GaloisField field,
int informationWordLength,
Func <int[], FieldElement[]> encodingProcedure,
CodeDistanceAnalyzerOptions options);
