Add CalculationResultsFile coverage
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Marek Lemańczyk committed
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@@ -0,0 +1,197 @@
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using Open.Collections;
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using PerfectNumbers.Core;
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using PerfectNumbers.Core.Gpu;
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using EvenPerfectBitScanner;
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namespace EvenPerfectBitScanner.IO;
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internal static class CalculationResultsFile
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{
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internal static List<ulong> LoadCandidatesWithinRange(string candidateFile, UInt128 maxPrimeLimit, bool maxPrimeConfigured, out int skippedByLimit)
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{
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List<ulong> candidates = [];
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skippedByLimit = 0;
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using FileStream readStream = new(candidateFile, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
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using StreamReader reader = new(readStream);
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string? line;
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ReadOnlySpan<char> span;
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while ((line = reader.ReadLine()) is not null)
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{
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if (string.IsNullOrWhiteSpace(line))
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{
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continue;
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}
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span = line.AsSpan().Trim();
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if (span.IsEmpty || span[0] == '#')
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{
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continue;
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}
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int index = 0;
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while (index < span.Length)
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{
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if (!char.IsDigit(span[index]))
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{
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index++;
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continue;
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}
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int start = index;
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index++;
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while (index < span.Length && char.IsDigit(span[index]))
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{
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index++;
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}
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if (Utf8CliParser.TryParseUInt64(span[start..index], out ulong parsed))
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{
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if (!maxPrimeConfigured || (UInt128)parsed <= maxPrimeLimit)
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{
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candidates.Add(parsed);
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}
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else
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{
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skippedByLimit++;
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}
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}
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}
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}
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return candidates;
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}
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internal static void EnumerateCandidates(string resultsFileName, Action<ulong, bool, bool> lineProcessorAction)
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{
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using FileStream readStream = new(resultsFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
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using StreamReader reader = new(readStream);
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string? line;
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bool headerSkipped = false;
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ReadOnlySpan<char> span;
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int first = 0;
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int second = 0;
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int third = 0;
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ulong parsedP = 0UL;
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ReadOnlySpan<char> detailedSpan = default;
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ReadOnlySpan<char> passedAllTestsSpan = default;
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bool detailed = false;
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bool passedAllTests = false;
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while ((line = reader.ReadLine()) != null)
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{
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if (!headerSkipped)
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{
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headerSkipped = true;
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continue;
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}
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if (string.IsNullOrWhiteSpace(line))
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{
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continue;
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}
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span = line.AsSpan();
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first = span.IndexOf(',');
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if (first < 0)
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{
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continue;
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}
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parsedP = Utf8CliParser.ParseUInt64(span[..first]);
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span = span[(first + 1)..];
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second = span.IndexOf(',');
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if (second < 0)
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{
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continue;
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}
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span = span[(second + 1)..];
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third = span.IndexOf(',');
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if (third < 0)
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{
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continue;
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}
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detailedSpan = span[..third];
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passedAllTestsSpan = span[(third + 1)..];
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if (Utf8CliParser.TryParseBoolean(detailedSpan, out detailed) && Utf8CliParser.TryParseBoolean(passedAllTestsSpan, out passedAllTests))
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{
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lineProcessorAction(parsedP, detailed, passedAllTests);
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}
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}
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}
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internal static string BuildFileName(
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bool bitInc,
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int threads,
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int block,
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GpuKernelType kernelType,
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bool useLucasFlag,
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bool useDivisorFlag,
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bool useByDivisorFlag,
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bool mersenneOnGpu,
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bool useOrder,
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bool useGcd,
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NttBackend nttBackend,
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int gpuPrimeThreads,
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int llSlice,
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int gpuScanBatch,
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ulong warmupLimit,
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ModReductionMode reduction,
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string mersenneDevice,
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string primesDevice,
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string orderDevice)
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{
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string inc = bitInc ? "bit" : "add";
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string mers = useDivisorFlag
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? "divisor"
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: (useLucasFlag
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? "lucas"
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: (useByDivisorFlag
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? "bydivisor"
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: (kernelType == GpuKernelType.Pow2Mod ? "pow2mod" : "incremental")));
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string ntt = nttBackend == NttBackend.Staged ? "staged" : "reference";
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string red = reduction switch { ModReductionMode.Mont64 => "mont64", ModReductionMode.Barrett128 => "barrett128", ModReductionMode.GpuUInt128 => "uint128", _ => "auto" };
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string order = useOrder ? "order-on" : "order-off";
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string gcd = useGcd ? "gcd-on" : "gcd-off";
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Span<char> initialBuffer = stackalloc char[256];
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var builder = new PooledValueStringBuilder(initialBuffer);
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try
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{
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builder.Append("even_perfect_bit_scan_inc-");
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builder.Append(inc);
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builder.Append("_thr-");
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builder.Append(threads);
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builder.Append("_blk-");
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builder.Append(block);
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builder.Append("_mers-");
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builder.Append(mers);
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builder.Append("_mersdev-");
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builder.Append(mersenneDevice);
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builder.Append("_ntt-");
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builder.Append(ntt);
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builder.Append("_red-");
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builder.Append(red);
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builder.Append("_primesdev-");
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builder.Append(primesDevice);
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builder.Append('_');
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builder.Append(order);
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builder.Append("_orderdev-");
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builder.Append(orderDevice);
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builder.Append('_');
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builder.Append(gcd);
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builder.Append("_gputh-");
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builder.Append(gpuPrimeThreads);
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builder.Append("_llslice-");
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builder.Append(llSlice);
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builder.Append("_scanb-");
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builder.Append(gpuScanBatch);
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builder.Append("_warm-");
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builder.Append(warmupLimit);
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builder.Append(".csv");
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return builder.ToString();
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}
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finally
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{
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builder.Dispose();
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}
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}
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}
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