FLA_Axpy_blk_var4.c File Reference

(r)


Functions

FLA_Error FLA_Axpy_blk_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_axpy_t *cntl)

Function Documentation

FLA_Error FLA_Axpy_blk_var4 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_axpy_t cntl 
)

References FLA_Axpy_internal(), FLA_Cont_with_1x3_to_1x2(), FLA_Determine_blocksize(), FLA_Obj_width(), FLA_Part_1x2(), and FLA_Repart_1x2_to_1x3().

Referenced by FLA_Axpy_internal().

00036 {
00037   FLA_Obj AL,    AR,       A0,  A1,  A2;
00038 
00039   FLA_Obj BL,    BR,       B0,  B1,  B2;
00040 
00041   dim_t b;
00042 
00043   FLA_Part_1x2( A,    &AL,  &AR,      0, FLA_RIGHT );
00044 
00045   FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_RIGHT );
00046 
00047   while ( FLA_Obj_width( AR ) < FLA_Obj_width( A ) ){
00048 
00049     b = FLA_Determine_blocksize( AL, FLA_LEFT, FLA_Cntl_blocksize( cntl ) );
00050 
00051     FLA_Repart_1x2_to_1x3( AL,  /**/ AR,        &A0, &A1, /**/ &A2,
00052                            b, FLA_LEFT );
00053 
00054     FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, &B1, /**/ &B2,
00055                            b, FLA_LEFT );
00056 
00057     /*------------------------------------------------------------*/
00058 
00059     FLA_Axpy_internal( alpha, A1, B1,
00060                        FLA_Cntl_sub_axpy( cntl ) );
00061 
00062     /*------------------------------------------------------------*/
00063 
00064     FLA_Cont_with_1x3_to_1x2( &AL,  /**/ &AR,        A0, /**/ A1, A2,
00065                               FLA_RIGHT );
00066 
00067     FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, /**/ B1, B2,
00068                               FLA_RIGHT );
00069   }
00070 
00071   return FLA_SUCCESS;
00072 }


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