tmp_dgefmm_mem.l

C++编写的高性能矩阵乘法的Stranssen算法

.TH TMP_DGEFMM_MEM l "12 November 1996" "PRISM version 1.0" "PRISM routine (version 1.0)"
.TH TMP_DGEFMM_MEM l "12 November 1996" "PRISM routine" "PRISM routine"
.SH NAME
TMP_DGEFMM_MEM - returns the work space needed by DGEFMM_MEM.
.SH SYNOPSIS
.TP 24
INTEGER FUNCTION TMP_DGEFMM_MEM ( M, N, K, ALPHA, BETA )
.TP 22
.ti +4
INTEGER
M, N, K
.TP 22
.ti +4
DOUBLE PRECISION 
ALPHA, BETA
.SH PURPOSE
TMP_DGEFMM_MEM  returns the work space needed by DGEFMM_MEM which 
performs the computation

C := alpha*op( A )*op( B ) + beta*C,

where  op( X ) is one of
.br

   op( X ) = X   or   op( X ) = X' (transpose of X),
.br

alpha and beta are scalars, and A, B and C are matrices, with op( A )
an m by k matrix,  op( B )  a  k by n matrix and  C an m by n matrix.

This is also the amount of temporary space internally allocated by DGEFMM.
This routine has a FORTRAN calling interface.  It can be used to determine
the exact amount of memory needed.

.SH PARAMETERS
.TP 8
M       - INTEGER.
On entry,  M  specifies  the number  of rows  of the  matrix
op( A )  and of the  matrix  C.  M  must  be at least  zero.
Unchanged on exit.
.TP 8
N       - INTEGER.
On entry,  N  specifies the number  of columns of the matrix
op( B ) and the number of columns of the matrix C. N must be
at least zero.
Unchanged on exit.
.TP 8
K       - INTEGER.
On entry,  K  specifies  the number of columns of the matrix
op( A ) and the number of rows of the matrix op( B ). K must
be at least  zero.
Unchanged on exit.
.TP 8
ALPHA   - DOUBLE PRECISION.
On entry, ALPHA specifies the scalar alpha.
Unchanged on exit.
.TP 8
BETA    - DOUBLE PRECISION.
On entry,  BETA  specifies the scalar  beta.  When  BETA  is
supplied as zero then C need not be set on input.
Unchanged on exit.
.TP 8
return value - INTEGER.
On exit this is the number of DOUBLE PRECISION words of temporary space needed
by DGEFMM_MEM.

.SH SEE ALSO
.BR DGEFMM (l),
.BR DGEFMM_MEM (l),
.BR fmm (l),
.BR tmp_fmm (l).

.SH FURTHER INFORMATION
.LP
See the DGEFMM User's Guide provided in the doc/ directory of the distribution.

.SH BUGS
.LP
There are no known bugs.

.SH COPYRIGHT
See COPYRIGHT file provided with the software distribution.

.SH AUTHORS
.IP
Steven Huss-Lederman, University of Wisconsin
.br
Elaine M. Jacobson, Center for Computing Sciences
.br
Jeremy R. Johnson, Drexel University
.br
Anna Tsao, Center for Computing Sciences
.br
Thomas Turnbull, Center for Computing Sciences