ATLAS/tune/blas/ger/CASES.
Most of the discussion of the GEMV primitives applies to the GER primitives
as well, so I assume you have read and are familiar with the concepts
discussed above. As before, the routines to be timed are given
in a kernel description file, <pre>cases.dsc. GER does not have a
transpose case, so this file first lists the number of GER primitives to search,
followed by that many primitive lines describing them.
GER primitive lines are of the form:
<ID> <flag> <Xunroll> <Yunroll> <filename> "<author(s)>"
<ID>: Integer greater than 0 uniquely identifying this entry
<flag>: is an integer flag which is ignored at the moment
<Xunroll>: is the unrolling of the loop over the X vector
(i.e. the M-loop)
<Yunroll>: is the unrolling of the loop over the Y vector
(i.e. the N-loop)
<filename>: is the name of the C source file for the primitive.
<author(s)>: author(s) name(s)
The API for the ger primitive is:
#if defined(SCPLX) || defined(DCPLX) #ifdef Conj_ ATL_<pre>ger1c_a1_x1_yX #else ATL_<pre>ger1u_a1_x1_yX #endif #else ATL_<pre>ger1_a1_x1_yX #endif ( const int M, /* length of X vector */ const int N, /* length of Y vector */ const SCALAR alpha,/* ignored, assumed to be one */ const TYPE *X, /* pointer to X vector */ const int incX, /* ignored, assumed to be one */ const TYPE *Y, /* pointer to Y vector */ const int incY /* increment of Y vector; NOTE: NOT IGNORED */ TYPE *A, /* pointer to column-major matrix */ const int lda, /* leading dimension of A, or row-stride */ );
Assumptions:
incX = 1