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GPU memory allocations protected with lock to prevent shared memory access issues. GPU usage limited for the best performance.

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mlemanczyk committed 2025-11-19 16:49:01 +01:00
1 parent 02d16bf05c
commit 5cac51479e
12 files changed
+236 -148
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PerfectNumbers.Core/Gpu/GpuKernelPool.cs
+9 -9
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@@ -26,7 +26,7 @@ public class GpuKernelPool
internal static KernelContainer GetOrAddKernels(int acceleratorIndex, AcceleratorStream stream, KernelType kernelType)
{
var pool = _pool ??= [];
if (pool[acceleratorIndex] is not {} kernels)
if (pool[acceleratorIndex] is not { } kernels)
{
kernels = new();
}
@@ -151,7 +151,7 @@ public class GpuKernelPool
var host = MersenneDivisorCycles.Shared.ExportSmallCyclesSnapshot();
MemoryBuffer1D<ulong, Stride1D.Dense>? device;
// lock (accelerator)
lock (accelerator)
{
device = accelerator.Allocate1D<ulong>(host.Length);
}
@@ -195,13 +195,13 @@ public class GpuKernelPool
MemoryBuffer1D<ulong, Stride1D.Dense>? deviceLastOnePow2;
MemoryBuffer1D<ulong, Stride1D.Dense>? deviceLastSevenPow2;
// lock (accelerator)
// {
deviceLastOne = accelerator.Allocate1D<uint>(hostLastOne.Length);
deviceLastSeven = accelerator.Allocate1D<uint>(hostLastSeven.Length);
deviceLastOnePow2 = accelerator.Allocate1D<ulong>(hostLastOnePow2.Length);
deviceLastSevenPow2 = accelerator.Allocate1D<ulong>(hostLastSevenPow2.Length);
// }
lock (accelerator)
{
deviceLastOne = accelerator.Allocate1D<uint>(hostLastOne.Length);
deviceLastSeven = accelerator.Allocate1D<uint>(hostLastSeven.Length);
deviceLastOnePow2 = accelerator.Allocate1D<ulong>(hostLastOnePow2.Length);
deviceLastSevenPow2 = accelerator.Allocate1D<ulong>(hostLastSevenPow2.Length);
}
deviceLastOne.View.CopyFromCPU(stream, hostLastOne);
deviceLastSeven.View.CopyFromCPU(stream, hostLastSeven);