tanakamura

matmul_x86_fma_:
.LFB1165:
	.cfi_startproc
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	addq	%rdi, %rcx
	vxorps	%xmm0, %xmm0, %xmm0
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6

tanakamura

#include <immintrin.h>
#include <stdio.h>
#include <intrin.h>

/*
lookup8:
	subq	$12, %rsp
	.seh_stackalloc	12
	.seh_endprologue
	movl	%edx, (%rsp)

tanakamura

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>

double
sec(void)
{
    struct timespec ts;

tanakamura

/*
==4KB==
        memset L1/L2        1.8[usec],     2230.9[MB/s]
           memset L2        1.9[usec],     2198.6[MB/s]
           memset L1        5.9[usec],      696.6[MB/s]
     memset wo cache       19.9[usec],      206.2[MB/s]
            flush wb       10.1[usec],      406.2[MB/s]
          flush4k wb        8.9[usec],      459.9[MB/s]
         flush empty        4.1[usec],      990.8[MB/s]
       flush4k empty        3.2[usec],     1270.1[MB/s]

tanakamura

module top(led_0,
           sw_0);

   (* IOSTANDARD="LVCMOS33"*) (* PACKAGE_PIN = "T22"*) output led_0;
   (* IOSTANDARD="LVCMOS25"*) (* PACKAGE_PIN = "F22"*) input  sw_0;

   assign led_0 = sw_0;

endmodule

tanakamura

set output_dir ./out
file mkdir $output_dir

read_verilog top.v

synth_design -top top -part xc7z020clg484-1 -flatten rebuilt 

opt_design
place_design
phys_opt_design

tanakamura

module design_1_wrapper
  ();

   wire [63:0] gpio_out0;
   wire [63:0] gpio_in0;

   assign gpio_in0[0] = gpio_out0[1];

   PS7 PS7_i (
              .EMIOGPIOO (gpio_out0),

tanakamura

/*
             clflush 4278.300100[MiB/s]
          clflushopt 44717.389375[MiB/s]
              memset 30407.684046[MiB/s]
*/

#include <stdio.h>
#include <x86intrin.h>
#include <sys/time.h>
#include <string.h>

tanakamura

(https://github.com/tanakamura/instruction-bench)

Intel(R) Xeon Phi(TM) CPU 7210 @ 1.30GHz
== latency/throughput ==
   reg64:                                     add:   latency: CPI=    1.11, IPC=    0.90
   reg64:                                     add:throughput: CPI=    0.64, IPC=    1.57
   reg64:                                     lea:   latency: CPI=    1.03, IPC=    0.97
   reg64:                                     lea:throughput: CPI=    0.65, IPC=    1.55
   reg64:                                    load:   latency: CPI=    4.04, IPC=    0.25
   reg64:                                    load:throughput: CPI=    1.02, IPC=    0.98

tanakamura

 Performance counter stats for 'sh -c ../configure; make -j256':

     631718.546417      task-clock (msec)         #    4.435 CPUs utilized
            79,129      context-switches          #    0.125 K/sec
            46,742      cpu-migrations            #    0.074 K/sec
        14,459,831      page-faults               #    0.023 M/sec
   794,193,966,671      cycles                    #    1.257 GHz                      (50.80%)
   <not supported>      stalled-cycles-frontend
   <not supported>      stalled-cycles-backend
   396,607,076,972      instructions              #    0.50  insns per cycle          (75.66%)