get intel cpu arch

ref:https://unix.stackexchange.com/questions/230634/how-to-find-out-the-cpu-code-name-architecture-family

#!/bin/bash
# cascade lake 2nd gen stuff from https://www.intel.com/content/www/us/en/products/docs/processors/xeon/2nd-gen-xeon-scalable-spec-update.html
# 2nd gen xeon scalable cpus: cascade lake sku is 82xx, 62xx, 52xx, 42xx 32xx W-32xx  from https://www.intel.com/content/www/us/en/products/docs/processors/xeon/2nd-gen-xeon-scalable-spec-update.html
# skylake 1st gen stuff from https://www.intel.com/content/www/us/en/processors/xeon/scalable/xeon-scalable-spec-update.html
# 1st gen xeon scalable cpus: 81xx, 61xx, 51xx, 81xxT, 61xxT 81xxF, 61xxF, 51xx, 41xx, 31xx, 51xxT 41xxT, 51xx7, 
CPU_NAME=`cat /proc/cpuinfo | awk '
  function decode_fam_mod(vndor, fam, mod, mod_nm) {
    if (vndor == "GenuineIntel") {
      # cpuid tables from https://en.wikichip.org/wiki/intel/cpuid
      dcd[1,1]="Ice Lake";              dcd[1,2] ="Family 6 Model 108";
      dcd[2,1]="Ice Lake";              dcd[2,2] ="Family 6 Model 106";
      dcd[3,1]="Cascade Lake/Skylake";  dcd[3,2] ="Family 6 Model 85"; # 06_55h  Intel always does the hex fam_model
      dcd[4,1]="Broadwell";             dcd[4,2] ="Family 6 Model 79"; # 06_4fh
      dcd[5,1]="Broadwell";             dcd[5,2] ="Family 6 Model 86"; # 06_56h
      dcd[6,1]="Haswell";               dcd[6,2] ="Family 6 Model 63"; # 06_3fh
      dcd[7,1]="Ivy Bridge";            dcd[7,2] ="Family 6 Model 62";
      dcd[8,1]="Sandy Bridge";          dcd[8,2] ="Family 6 Model 45"; # 06_2dh
      dcd[9,1]="Westmere";              dcd[9,2] ="Family 6 Model 44";
      dcd[10,1]="EX";                   dcd[10,2]="Family 6 Model 47";
      dcd[11,1]="Nehalem";              dcd[11,2]="Family 6 Model 46";
      dcd[12,1]="Lynnfield";            dcd[12,2]="Family 6 Model 30";
      dcd[13,1]="Bloomfield, EP, WS";   dcd[13,2]="Family 6 Model 26";
      dcd[14,1]="Penryn";               dcd[14,2]="Family 6 Model 29";
      dcd[15,1]="Harpertown, QC, Wolfdale, Yorkfield";  dcd[15,2]="Family 6 Model 23";
      str = "Family " fam " Model " mod;
      #printf("str= %s\n", str);
      res=" ";
      for(k=1;k <=15;k++) { if (dcd[k,2] == str) {res=dcd[k,1];break;}}
      if (k == 3) {
        # so Cooper Lake/Cascade Lake/SkyLake)
        if (match(mod_nm, / [86543]2[0-9][0-9]/) > 0) { res="Cascade Lake";} else
        if (match(mod_nm, / [86543]1[0-9][0-9]/) > 0) { res="Skylake";}
      }
      return res;
    }
  }
  /^vendor_id/ {
    vndr=$(NF);
  }
  /^cpu family/ {
    fam=$(NF);
  }
  /^model/ {
    if ($2 == ":") {
      mod=$(NF);
    }
  }
  /^model name/ {
#model name : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
    n=split($0, arr, ":");
    mod_nm = arr[2];
    #printf("vndr= %s, fam= %s, mod= %s, mod_nm= %s\n", vndr, fam, mod, mod_nm);
    cpu_name=decode_fam_mod(vndr, fam, mod, mod_nm);
    printf("%s\n", cpu_name);
    exit;
  }
'`
echo "cpu uarch= $CPU_NAME"