void _tile_dpbf16ps (__tile dst, __tile a, __tile b)
| Type | Value |
|---|---|
| Type | TileFloating Point |
| Header file | #include <immintrin.h> |
| Instruction | TDPBF16PS tmm, tmm, tmm |
| CPUID flags | AMXBF16 |
Compute dot-product of BF16 (16-bit) floating-point pairs in tiles "a" and "b", accumulating the intermediate single-precision (32-bit) floating-point elements with elements in "dst", and store the 32-bit result back to tile "dst".
AMX
Application-Targeted
FOR m := 0 TO dst.rows - 1 tmp := dst.row[m] FOR k := 0 TO (a.colsb / 4) - 1 FOR n := 0 TO (dst.colsb / 4) - 1 tmp.fp32[n] += FP32(a.row[m].bf16[2*k+0]) * FP32(b.row[k].bf16[2*n+0]) tmp.fp32[n] += FP32(a.row[m].bf16[2*k+1]) * FP32(b.row[k].bf16[2*n+1]) ENDFOR ENDFOR write_row_and_zero(dst, m, tmp, dst.colsb) ENDFOR zero_upper_rows(dst, dst.rows) zero_tileconfig_start()