Lessons: Accelerate

• You have to be sure you give the correct shape to reshape otherwise you might get compilations error from nvcc, Accelerate doesn't check it for you
• Kernel code can not depend on the output of another kernel. For instance, we tried:

let xs = filter somePredicate someVector
in reshape (Z :. length xs :. 3) someOtherVector

This doesn't work as "length xs" can not be computed before Accelerate-run time, but the kernel for reshape has to be compiled at the same time as the one for filter.