mlemanczyk/even-perfect-numbers-scanner
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GPU warmup disabled when no GPU is in use.

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mlemanczyk committed 2026-01-22 15:08:13 +01:00
1 parent b9f2b08c78
commit c11a886197
3 files changed
+29 -8
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EvenPerfectBitScanner/Program.cs
+15 -3
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@@ -118,10 +118,18 @@ private static ThreadLocal<object>? MersenneTesters;
EnvironmentConfiguration.MinK = _cliArguments.MinK;
EnvironmentConfiguration.GpuBatchSize = Math.Max(1, _cliArguments.ScanBatchSize);
EnvironmentConfiguration.GpuRatio = _cliArguments.GpuRatio;
EnvironmentConfiguration.MersenneDevice = _cliArguments.MersenneDevice;
EnvironmentConfiguration.OrderDevice = _cliArguments.OrderDevice;
EnvironmentConfiguration.UsePow2GroupDivisors = _cliArguments.ByDivisorKIncrementMode == ByDivisorKIncrementMode.Pow2Groups;
EnvironmentConfiguration.ByDivisorSpecialRange = _cliArguments.ByDivisorSpecialRange;
EnvironmentConfiguration.RollingAccelerators = Math.Min(Math.Min(PerfectNumberConstants.RollingAccelerators, gpuPrimeThreads), threadCount);
bool useGpu = _cliArguments.OrderDevice == ComputationDevice.Hybrid || _cliArguments.OrderDevice == ComputationDevice.Gpu ||
_cliArguments.MersenneDevice == ComputationDevice.Hybrid || _cliArguments.MersenneDevice == ComputationDevice.Gpu;
EnvironmentConfiguration.RollingAccelerators = useGpu
? Math.Min(Math.Min(PerfectNumberConstants.RollingAccelerators, gpuPrimeThreads), threadCount)
: 0;
EnvironmentConfiguration.Initialize();
// NttGpuMath.GpuTransformBackend = _cliArguments.NttBackend;
@@ -137,8 +145,12 @@ private static ThreadLocal<object>? MersenneTesters;
UnboundedTaskScheduler.ConfigureThreadCount(threadCount);
PrimeTester.GpuBatchSize = gpuPrimeBatch;
GpuPrimeWorkLimiter.SetLimit(gpuPrimeThreads);
Console.WriteLine("Warming up GPU kernels");
PrimeTester.WarmUpGpuKernels(EnvironmentConfiguration.RollingAccelerators);
if (useGpu)
{
Console.WriteLine("Warming up GPU kernels");
PrimeTester.WarmUpGpuKernels(EnvironmentConfiguration.RollingAccelerators);
}
// PrimeTester.WarmUpGpuKernels(gpuPrimeThreads >> 4);
Console.WriteLine("Starting up threads...");
_ = UnboundedTaskScheduler.Instance;