SWKTensor operations

[dimakura]

Implement basic tensor operations.

Almost all operations are returning copies of tensors and have in-place counterpart. If main operation name is operationName, then mutating operation is named operationName$. Usually in-place counterparts have return type Void.

General operations

• [x] transpose(dim1:Int, dim2: Int) transpose along dimension
• [x] isContiguous() is tensor contiguous?
• [x] isTransposed() is tensor transposed?
• [ ] clone()
• [ ] contiguous() returns contiguous tensor

Math operations

• cos, sin, tan, acos, asin, atan, cosh
• abs
• bernoulli, normal, rand (statics too?)
• ceil, floor
• clamp(min, max)
• exp

Scalar operations

• add(_:T) adds given value;
• sub(_:T) subtracts given value;
• mul(_:T) multiplies given value;
• div(_:T)

Comparison

• ge, gt, le, lt, eq

Tensor operations

• add(_:SWKTensor)
• dot(_:SWKTensor)

[dimakura]

Some references for SIMD interface:

• http://www.russbishop.net/swift-2-simd
• https://developer.apple.com/documentation/accelerate
• https://developer.apple.com/documentation/accelerate/veclib