GQE Kernel APIs

gqeAggr

#include "gqe_aggr.hpp"

void gqeAggr (
    ap_uint <8*sizeof (int32_t)*16> buf_in [],
    ap_uint <8*sizeof (int32_t)*16> buf_out [],
    ap_uint <8*sizeof (int32_t)> buf_cfg [],
    ap_uint <8*sizeof (int32_t)> buf_result_info [],
    ap_uint <8*sizeof (int32_t)*16> ping_buf0 [],
    ap_uint <8*sizeof (int32_t)*16> ping_buf1 [],
    ap_uint <8*sizeof (int32_t)*16> ping_buf2 [],
    ap_uint <8*sizeof (int32_t)*16> ping_buf3 [],
    ap_uint <8*sizeof (int32_t)*16> pong_buf0 [],
    ap_uint <8*sizeof (int32_t)*16> pong_buf1 [],
    ap_uint <8*sizeof (int32_t)*16> pong_buf2 [],
    ap_uint <8*sizeof (int32_t)*16> pong_buf3 []
    )

GQE Aggr Kernel.

For detailed document, see GQE Kernel Design.

Parameters:

buf_in	input table buffer.
buf_out	output table buffer.
buf_cfg	input configuration buffer.
buf_result_info	output information buffer.
ping_buf0	gqeAggr’s temporal buffer for storing overflow.
ping_buf1	gqeAggr’s temporal buffer for storing overflow.
ping_buf2	gqeAggr’s temporal buffer for storing overflow.
ping_buf3	gqeAggr’s temporal buffer for storing overflow.
pong_buf0	gqeAggr’s temporal buffer for storing overflow.
pong_buf1	gqeAggr’s temporal buffer for storing overflow.
pong_buf2	gqeAggr’s temporal buffer for storing overflow.
pong_buf3	gqeAggr’s temporal buffer for storing overflow.

gqeJoin

#include "gqe_join.hpp"

void gqeJoin (
    ap_uint <8*sizeof (int32_t)*16> buf_A [],
    ap_uint <8*sizeof (int32_t)*16> buf_B [],
    ap_uint <8*sizeof (int32_t)*16> buf_C [],
    ap_uint <8*sizeof (int32_t)*16> buf_D [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf0 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf1 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf2 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf3 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf4 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf5 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf6 [],
    ap_uint <8*sizeof (int32_t)*2> htb_buf7 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf0 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf1 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf2 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf3 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf4 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf5 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf6 [],
    ap_uint <8*sizeof (int32_t)*2> stb_buf7 []
    )

GQE Join Kernel.

For detailed document, see GQE Kernel Design.

Parameters:

buf_A	input table A buffer.
buf_B	input table B buffer.
buf_C	output table C buffer.
buf_D	configuration buffer.
htb_buf0	gqeJoin’s temporal buffer for storing small table.
htb_buf1	gqeJoin’s temporal buffer for storing small table.
htb_buf2	gqeJoin’s temporal buffer for storing small table.
htb_buf3	gqeJoin’s temporal buffer for storing small table.
htb_buf4	gqeJoin’s temporal buffer for storing small table.
htb_buf5	gqeJoin’s temporal buffer for storing small table.
htb_buf6	gqeJoin’s temporal buffer for storing small table.
htb_buf7	gqeJoin’s temporal buffer for storing small table.
stb_buf0	gqeJoin’s temporal buffer for storing small table.
stb_buf1	gqeJoin’s temporal buffer for storing small table.
stb_buf2	gqeJoin’s temporal buffer for storing small table.
stb_buf3	gqeJoin’s temporal buffer for storing small table.
stb_buf4	gqeJoin’s temporal buffer for storing small table.
stb_buf5	gqeJoin’s temporal buffer for storing small table.
stb_buf6	gqeJoin’s temporal buffer for storing small table.
stb_buf7	gqeJoin’s temporal buffer for storing small table.

gqePart

#include "gqe_part.hpp"

void gqePart (
    const int k_depth,
    const int col_index,
    const int bit_num,
    ap_uint <8*4*16> buf_A [],
    ap_uint <8*4*16> buf_B [],
    ap_uint <8*4*16> buf_D []
    )

GQE partition kernel.

Parameters:

k_depth	depth of each hash bucket in URAM
col_index	index of input column
bit_num	number of defined partition, log2(number of partition)
buf_A	input table buffer
buf_B	output table buffer
buf_D	configuration buffer