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Notes for AXPY

  1. Performs $ y \leftarrow \alpha x + y $
  2. An index file input line looks like:
    <ID> <alpha> <incX> <incY> <source file> <author name>
  3. The kernel will never be called with alpha == 0.0.
  4. For complex, if both vector strides are 1, and the imaginary component of alpha is zero, the real kernel is called with 2*N.

R. Clint Whaley 2001-08-04