c# VS2015 RC and SIMD Confusion

[+Red King Subscriber²]

Microsoft has been touting SIMD support since 2014.

There is this package, but I can't install it from Package Manager Console (not found error) and it doesn't appear in the GUI,

https://www.nuget.org/packages/Microsoft.Bcl.Simd

it is unlisted probably thats why

There is also this,

https://www.nuget.org/packages/System.Numerics.Vectors/

but that doesn't have Vector<T> - not sure what the point.

And Vector<Double> doesn't resolve automatically when pointing to .NET 4.6

So... what do I need to do here to test it out?

[Stebet]

The SIMD enabled types now reside in System.Numerics namespce.

 

https://msdn.microsoft.com/en-us/library/system.numerics(v=vs.110).aspx

 

Are they not in the BCL by now?

 

EDIT: Strange, the types are in the official source (https://github.com/dotnet/corefx/tree/master/src/System.Numerics.Vectors), but I don't get them to show up either when fetching the NuGet package.

[+Red King Subscriber²]

  On 02/06/2015 at 13:43, Stebet said:

The SIMD enabled types now reside in System.Numerics namespce.

 

https://msdn.microsoft.com/en-us/library/system.numerics(v=vs.110).aspx

 

Are they not in the BCL by now?

Those say "single-precision floating-point"

I think modern CPUs can multiply two to eight doubles in one operation (256 / 512 bit registers) - that is what I want to do.

[Lant]

Surely you just use something like Vector4<T>.Multiply and it will be done using SIMD?

 

https://msdn.microsoft.com/en-us/library/system.numerics.vector4%28v=vs.110%29.aspx

[+Red King Subscriber²]

Here,

http://blogs.msdn.com/b/dotnet/archive/2014/04/07/the-jit-finally-proposed-jit-and-simd-are-getting-married.aspx

it says, I need the,

https://www.nuget.org/packages/Microsoft.Bcl.Simd

but - has anyone had luck installing it via PM?

Is there a trick to it?

[Andre S. Veteran]

It's in System.Numerics.Vectors.dll. I haven't tried it yet, but isn't it with the other System*.dlls? Otherwise it's a nuget package.

Edit:

Aah, the latest version of the nuget package has removed Vector(T) for stability issues. But I'm still unsure whether you need that if you're targeting .NET 4.6.

[+Red King Subscriber²]

I might wait for non-RC version... maybe that will fix it.

Also, nameof is epic win