FLA_Gemm_tn_unb_var4.c File Reference

(r)


Functions

FLA_Error FLA_Gemm_tn_unb_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Error FLA_Gemm_tn_unb_var4 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Gemv_external(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), and FLA_Scal_external().

00038 {
00039   FLA_Obj BL,    BR,       B0,  b1,  B2;
00040 
00041   FLA_Obj CL,    CR,       C0,  c1,  C2;
00042 
00043   FLA_Scal_external( beta, C );
00044 
00045   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_RIGHT );
00046 
00047   FLA_Part_1x2( C,    &CL,  &CR,      0, FLA_RIGHT );
00048 
00049   while ( FLA_Obj_width( BR ) < FLA_Obj_width( B ) ){
00050 
00051     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, &b1, /**/ &B2,
00052                            1, FLA_LEFT );
00053 
00054     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, &c1, /**/ &C2,
00055                            1, FLA_LEFT );
00056 
00057     /*------------------------------------------------------------*/
00058 
00059     /* c1 = A' * b1 + c1 */
00060     FLA_Gemv_external( FLA_TRANSPOSE, alpha, A, b1, FLA_ONE, c1 );
00061 
00062     /*------------------------------------------------------------*/
00063 
00064     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, /**/ b1, B2,
00065                               FLA_RIGHT );
00066 
00067     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, /**/ c1, C2,
00068                               FLA_RIGHT );
00069 
00070   }
00071 
00072   return FLA_SUCCESS;
00073 }


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