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Stream handling simplified to avoid dictionary lookups in favor of array lookups with known indexes.

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mlemanczyk committed 2025-11-16 15:01:51 +01:00
1 parent cd7636ddbe
commit a84445ef2a
15 files changed
+67 -73
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PerfectNumbers.Core/Gpu/PrimeOrderGpuHeuristics.cs
+5 -5
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@@ -102,7 +102,7 @@ internal static partial class PrimeOrderGpuHeuristics
private static SmallPrimeDeviceCache GetSmallPrimeDeviceCache(int acceleratorIndex, AcceleratorStream stream)
{
var pool = _smallPrimeDeviceCache ??= [];
var pool = _smallPrimeDeviceCache ??= new SmallPrimeDeviceCache[PerfectNumberConstants.RollingAccelerators];
if (pool[acceleratorIndex] is {} cached)
{
return cached;
@@ -132,7 +132,7 @@ internal static partial class PrimeOrderGpuHeuristics
private static Kernel GetPartialFactorKernel(int acceleratorIndex)
{
var pool = _partialFactorKernel ??= [];
var pool = _partialFactorKernel ??= new Kernel[PerfectNumberConstants.RollingAccelerators];
if (pool[acceleratorIndex] is {} cached)
{
return cached;
@@ -487,7 +487,7 @@ internal static partial class PrimeOrderGpuHeuristics
private static Kernel GetOrderKernel(int acceleratorIndex)
{
var pool = _orderKernel ??= [];
var pool = _orderKernel ??= new Kernel[PerfectNumberConstants.RollingAccelerators];
if (pool[acceleratorIndex] is {} cached)
{
return cached;
@@ -637,7 +637,7 @@ internal static partial class PrimeOrderGpuHeuristics
remainderBuffer.View.CopyToCPU(stream, ref MemoryMarshal.GetReference(resultSpan), length);
stream.Synchronize();
AcceleratorStreamPool.Return(acceleratorIndex, stream);
AcceleratorStreamPool.Return(acceleratorIndex);
for (int i = 0; i < length; i++)
{
results[i] = (UInt128)resultSpan[i];
@@ -675,7 +675,7 @@ internal static partial class PrimeOrderGpuHeuristics
private static Kernel GetPow2ModKernel(int acceleratorIndex)
{
var pool = _pow2ModKernel ??= [];
var pool = _pow2ModKernel ??= new Kernel[PerfectNumberConstants.RollingAccelerators];
if (pool[acceleratorIndex] is {} cached)
{
return cached;