Functions | |
FLA_Error | FLA_Gemv_n_blk_var2 (FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y, fla_gemv_t *cntl) |
FLA_Error FLA_Gemv_n_blk_var2 | ( | FLA_Obj | alpha, | |
FLA_Obj | A, | |||
FLA_Obj | x, | |||
FLA_Obj | beta, | |||
FLA_Obj | y, | |||
fla_gemv_t * | cntl | |||
) |
References FLA_Cont_with_3x1_to_2x1(), FLA_Determine_blocksize(), FLA_Gemv_internal(), FLA_Obj_length(), FLA_Part_2x1(), and FLA_Repart_2x1_to_3x1().
Referenced by FLA_Gemv_n().
00038 { 00039 FLA_Obj AT, A0, 00040 AB, A1, 00041 A2; 00042 00043 FLA_Obj yT, y0, 00044 yB, y1, 00045 y2; 00046 00047 dim_t b; 00048 00049 FLA_Part_2x1( A, &AT, 00050 &AB, 0, FLA_BOTTOM ); 00051 00052 FLA_Part_2x1( y, &yT, 00053 &yB, 0, FLA_BOTTOM ); 00054 00055 while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){ 00056 00057 b = FLA_Determine_blocksize( AT, FLA_TOP, FLA_Cntl_blocksize( cntl ) ); 00058 00059 FLA_Repart_2x1_to_3x1( AT, &A0, 00060 &A1, 00061 /* ** */ /* ** */ 00062 AB, &A2, b, FLA_TOP ); 00063 00064 FLA_Repart_2x1_to_3x1( yT, &y0, 00065 &y1, 00066 /* ** */ /* ** */ 00067 yB, &y2, b, FLA_TOP ); 00068 00069 /*------------------------------------------------------------*/ 00070 00071 /* y1 = alpha * A1 * x + y1; */ 00072 FLA_Gemv_internal( FLA_NO_TRANSPOSE, 00073 alpha, A1, x, beta, y1, 00074 FLA_Cntl_sub_gemv( cntl ) ); 00075 00076 /*------------------------------------------------------------*/ 00077 00078 FLA_Cont_with_3x1_to_2x1( &AT, A0, 00079 /* ** */ /* ** */ 00080 A1, 00081 &AB, A2, FLA_BOTTOM ); 00082 00083 FLA_Cont_with_3x1_to_2x1( &yT, y0, 00084 /* ** */ /* ** */ 00085 y1, 00086 &yB, y2, FLA_BOTTOM ); 00087 00088 } 00089 00090 return FLA_SUCCESS; 00091 }