SuperLU Distributed 8.2.1
Distributed memory sparse direct solver
zsp_blas3_dist.c File Reference

Sparse BLAS3, using some dense BLAS3 operations. More...

#include "superlu_zdefs.h"
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Functions

int sp_zgemm_dist (char *transa, int n, doublecomplex alpha, SuperMatrix *A, doublecomplex *b, int ldb, doublecomplex beta, doublecomplex *c, int ldc)
 

Detailed Description

Sparse BLAS3, using some dense BLAS3 operations.

Copyright (c) 2003, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from U.S. Dept. of Energy)

All rights reserved.

The source code is distributed under BSD license, see the file License.txt at the top-level directory.

-- Distributed SuperLU routine (version 1.0) --
Lawrence Berkeley National Lab, Univ. of California Berkeley.
September 1, 1999

Function Documentation

◆ sp_zgemm_dist()

int sp_zgemm_dist ( char *  transa,
int  n,
doublecomplex  alpha,
SuperMatrix A,
doublecomplex b,
int  ldb,
doublecomplex  beta,
doublecomplex c,
int  ldc 
)
  Purpose   
    =======   

    sp_z performs one of the matrix-matrix operations   

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

    where  op( X ) is one of 

       op( X ) = X   or   op( X ) = X'   or   op( X ) = conjg( X' ),

    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. 


    Parameters   
    ==========   

    TRANSA - (input) char*
             On entry, TRANSA specifies the form of op( A ) to be used in 
             the matrix multiplication as follows:   
                TRANSA = 'N' or 'n',  op( A ) = A.   
                TRANSA = 'T' or 't',  op( A ) = A'.   
                TRANSA = 'C' or 'c',  op( A ) = conjg( A' ).   
             Unchanged on exit.   

    TRANSB - (input) char*
             On entry, TRANSB specifies the form of op( B ) to be used in 
             the matrix multiplication as follows:   
                TRANSB = 'N' or 'n',  op( B ) = B.   
                TRANSB = 'T' or 't',  op( B ) = B'.   
                TRANSB = 'C' or 'c',  op( B ) = conjg( B' ).   
             Unchanged on exit.   

    M      - (input) int   
             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.   

    N      - (input) int
             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.   

    K      - (input) int
             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.

    ALPHA  - (input) doublecomplex
             On entry, ALPHA specifies the scalar alpha.   

    A      - (input) SuperMatrix*
             Matrix A with a sparse format, of dimension (A->nrow, A->ncol).
             Currently, the type of A can be:
                 Stype = NC or NCP; Dtype = Z; Mtype = GE. 
             In the future, more general A can be handled.

    B      - DOUBLE COMPLEX PRECISION array of DIMENSION ( LDB, kb ), where kb is 
             n when TRANSB = 'N' or 'n',  and is  k otherwise.   
             Before entry with  TRANSB = 'N' or 'n',  the leading k by n 
             part of the array B must contain the matrix B, otherwise 
             the leading n by k part of the array B must contain the 
             matrix B.   
             Unchanged on exit.   

    LDB    - (input) int
             On entry, LDB specifies the first dimension of B as declared 
             in the calling (sub) program. LDB must be at least max( 1, n ).  
             Unchanged on exit.   

    BETA   - (input) doublecomplex
             On entry, BETA specifies the scalar beta. When BETA is   
             supplied as zero then C need not be set on input.   

    C      - DOUBLE COMPLEX PRECISION array of DIMENSION ( LDC, n ).   
             Before entry, the leading m by n part of the array C must 
             contain the matrix C,  except when beta is zero, in which 
             case C need not be set on entry.   
             On exit, the array C is overwritten by the m by n matrix 
         ( alpha*op( A )*B + beta*C ).   

    LDC    - (input) int
             On entry, LDC specifies the first dimension of C as declared 
             in the calling (sub)program. LDC must be at least max(1,m).   
             Unchanged on exit.   

    ==== Sparse Level 3 Blas routine.  
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