FLA_Gemm_th_blk_var3.c File Reference

(r)


Functions

FLA_Error FLA_Gemm_th_blk_var3 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_gemm_t *cntl)

Function Documentation

FLA_Error FLA_Gemm_th_blk_var3 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_gemm_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x1_to_2x1(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Obj_length(), FLA_Part_1x2(), FLA_Part_2x1(), FLA_Repart_1x2_to_1x3(), and FLA_Repart_2x1_to_3x1().

Referenced by FLA_Gemm_th().

00036 {
00037   FLA_Obj BT,              B0,
00038           BB,              B1,
00039                            B2;
00040 
00041   FLA_Obj CL,    CR,       C0,  C1,  C2;
00042 
00043   dim_t b;
00044 
00045   FLA_Part_2x1( B,    &BT, 
00046                       &BB,            0, FLA_TOP );
00047 
00048   FLA_Part_1x2( C,    &CL,  &CR,      0, FLA_LEFT );
00049 
00050   while ( FLA_Obj_length( BT ) < FLA_Obj_length( B ) ){
00051 
00052     b = FLA_Determine_blocksize( BB, FLA_BOTTOM, FLA_Cntl_blocksize( cntl ) );
00053 
00054     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00055                         /* ** */            /* ** */
00056                                               &B1, 
00057                            BB,                &B2,        b, FLA_BOTTOM );
00058 
00059     FLA_Repart_1x2_to_1x3( CL,  /**/ CR,        &C0, /**/ &C1, &C2,
00060                            b, FLA_RIGHT );
00061 
00062     /*------------------------------------------------------------*/
00063 
00064     /* C1 = alpha * A' * B1' + C1; */
00065     FLA_Gemm_internal( FLA_TRANSPOSE, FLA_CONJ_TRANSPOSE,
00066                        alpha, A, B1, beta, C1,
00067                        FLA_Cntl_sub_gemm( cntl ) );
00068 
00069     /*------------------------------------------------------------*/
00070 
00071     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00072                                                   B1, 
00073                             /* ** */           /* ** */
00074                               &BB,                B2,     FLA_TOP );
00075 
00076     FLA_Cont_with_1x3_to_1x2( &CL,  /**/ &CR,        C0, C1, /**/ C2,
00077                               FLA_LEFT );
00078 
00079   }
00080 
00081   return FLA_SUCCESS;
00082 }


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