{"id":2642,"date":"2012-01-25T13:14:51","date_gmt":"2012-01-25T04:14:51","guid":{"rendered":"http:\/\/yasu2.prosou.nu\/blog\/index.php\/2012\/01\/25\/reconf_jan25_2012\/"},"modified":"2012-01-25T13:14:51","modified_gmt":"2012-01-25T04:14:51","slug":"reconf_jan25_2012","status":"publish","type":"post","link":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/2012\/01\/25\/2642\/","title":{"rendered":"RECONF Jan.25, 2012"},"content":{"rendered":"<p>\u5348\u524d\u4e2d\u306f\u8fb2\u5de5\u5927\u30bb\u30c3\u30b7\u30e7\u30f3\u3060\u306a&#8230; \u95a2\u6839\u5148\u751f\u306e\u5b66\u751f\u3055\u3093\u304c\u30e1\u30a4\u30f3\u3002<br \/>\n[WEB\u30a2\u30d7\u30ea\u306b\u7528\u3044\u308bFPGA\u7528IP\uff1aTCP\/IP\u56de\u8def]<br \/>\nICMP \u3068\u3001TCP \u306e MSS \u3068\u304b window scaling \u3068\u304b timestamp \u3092\u5b9f\u88c5\u3002<br \/>\nTCP stack \u306fSPARTAN-3 \u3067 4598 slices \u304b\u3002<br \/>\nCardBus \u306e FPGA Card \u306b\u8f09\u3063\u3066\u308b\u3068\u304b\u304b\u3063\u3053\u3044\u3044\u3002<br \/>\nTCP\u518d\u6574\u7406 (\u5230\u7740\u30d1\u30b1\u30c3\u30c8\u306e\u4e26\u3079\u66ff\u3048\u3063\u3066\u3053\u3068\u3001\u3060\u305d\u3046\u3060) \u3092\u3084\u3063\u3066\u3044\u308b\u306e\u306f\u3046\u3061\u3060\u3051\u3001\u3068\u306e\u3053\u3068\u3002\u8cea\u554f\u3057\u305f\u3089\u30d0\u30c3\u30d5\u30a1\u306f\u3051\u3063\u3053\u3046\u67d4\u8edf\u306b\u5236\u5fa1\u3057\u3066\u3044\u308b\u6a21\u69d8\u3002\u306a\u3093\u304b\u3059\u3052\u30fc<br \/>\n\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c FPGA \u4e0a\u306e TCP \u30b9\u30bf\u30c3\u30af\u3092\u4f7f\u3063\u3066\u3044\u308b\u3068\u304d\u306b\u3001CPU \u304b\u3089\u3082 TCP \u30b9\u30bf\u30c3\u30af\u3078\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3002<br \/>\nTCP offload \u306f\u666e\u901a 10G \u3068\u304b\u305d\u3046\u3044\u3046\u901f\u5ea6\u304c\u30bf\u30fc\u30b2\u30c3\u30c8\u3060\u3051\u3069\u3001\u3053\u306e\u7814\u7a76\u306e\u91ce\u671b\u306f\u4f55\u304b\u3042\u308a\u307e\u3059\u304b\uff1f \u2192 \u9ad8\u901f\u6027\u306e\u8ffd\u6c42\u3088\u308a\u300c\u5927\u898f\u6a21\u306a\u8ad6\u7406\u56de\u8def\u3067\u306a\u306b\u304c\u3067\u304d\u308b\u304b\u300d\u3068\u3044\u3046\u3053\u3068\u306b\u8208\u5473\u3092\u6301\u3063\u3066\u3044\u308b\u3001\u3068\u306e\u3053\u3068\u3002<br \/>\n\u30c7\u30e2\u52d5\u753b\u3092\u5ef6\u3005\u3068\u307f\u305b\u306a\u304c\u3089\u3057\u3083\u3079\u308b\u3001\u3068\u3044\u3046\u306e\u304c\u65ac\u65b0\u3067\u3088\u3044\u306d\u3002\u3053\u308c\u306f\u3061\u3083\u3093\u3068\u7df4\u7fd2\u3057\u3066\u3044\u308b\u8a3c\u62e0\u3002<br \/>\n[\u30b7\u30d5\u30c8\u30ec\u30b8\u30b9\u30bf\u3092\u7528\u3044\u305f\u97f3\u58f0\u5408\u6210\u56de\u8def\u306b\u304a\u3051\u308b\u58f0\u9053\u5f62\u72b6\u306e\u6c7a\u5b9a]<br \/>\n\u6ce2\u5f62\u30ec\u30d9\u30eb\u3067\u306e\u97f3\u58f0\u5408\u6210\u306f\u4e0d\u81ea\u7136\u3060\u3063\u305f\u308a\u3044\u308d\u3044\u308d\u3002<br \/>\n\u767a\u58f0\u5668\u5b98\u3092\u8ad6\u7406\u56de\u8def\u3067\u6a21\u64ec\u3057\u305f\u3089\u3082\u3063\u3068\u3046\u307e\u304f\u3044\u304f\u306f\u305a\u3002<br \/>\n\u58f0\u9053\u5f62\u72b6\u3092\u30e2\u30c7\u30eb\u5316\u3057\u3001\u305d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30ec\u30b8\u30b9\u30bf\u306b\u5165\u308c\u3066\u30fb\u30fb\u30fb<br \/>\n\u30b7\u30d5\u30c8\u30ec\u30b8\u30b9\u30bf\u3067\u9032\u884c\u6ce2\u3068\u5f8c\u9000\u6ce2\u3092\u52d5\u304b\u3059\u3002\u3053\u306e\u969b\u306b\u30d1\u30eb\u30b9\u5bc6\u5ea6\u3067\u7a7a\u6c17\u5bc6\u5ea6\u3092\u8868\u73fe\u3059\u308b\u3053\u3068\u30671\u30d3\u30c3\u30c8\u5e45\u3067\u6e08\u307e\u305b\u3066\u3044\u308b\u3002\u9032\u884c\u6ce2\u30ec\u30b8\u30b9\u30bf\u3068\u5f8c\u9000\u6ce2\u30ec\u30b8\u30b9\u30bf\u306e\u9014\u4e2d\u306b\u3042\u3061\u3053\u3061\u6f14\u7b97\u5668\u304c\u5165\u3063\u3066\u3044\u308b\u4ed5\u7d44\u307f\u3002<br \/>\nX \u7dda\u5199\u771f\u306b\u57fa\u3065\u3044\u3066\u4f5c\u3063\u305f\u3002<br \/>\n\u6f14\u7b97\u306f<br \/>\n&#8211; \u30d1\u30eb\u30b9\u5206\u5272=\u9032\u884c\u6ce2\u3068\u5f8c\u9000\u6ce2\u3092\u900f\u904e\u6ce2\u3068\u53cd\u5c04\u6ce2\u306b\u5206\u5272<br \/>\n&#8211; \u30d1\u30eb\u30b9\u5408\u6210=\u900f\u904e\u6ce2\u3068\u53cd\u5c04\u6ce2\u306e\u6f14\u7b97<br \/>\n&#8211; \u30d1\u30eb\u30b9\u53cd\u8ee2=\u56fa\u5b9a\u7aef\u3060\u3063\u305f\u308a\u81ea\u7531\u7aef\u3060\u3063\u305f\u308a<br \/>\n\u3044\u307e\u306e\u3068\u3053\u308d\u3042\u3093\u307e\u308a\u3044\u3044\u7d50\u679c\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u3002<br \/>\n&#8211; \u9ad8\u5468\u6ce2\u6210\u5206\u304c\u591a\u3044<br \/>\n&#8211; \u7b2c2\u30d5\u30a9\u30eb\u30de\u30f3\u30c8\u306e\u5f71\u97ff\u304c\u306a\u3044\u3002\u6bcd\u97f3\u304c\u9055\u3046\u3068\u30b9\u30da\u30af\u30c8\u30eb\u306e\u8c37\u304c\u3042\u308b\u306e\u3060\u304c&#8230;<br \/>\n\u3068\u306e\u3053\u3068\u3002\u5468\u6ce2\u6570\u4f9d\u5b58\u3067\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u6e1b\u8870\u3059\u308b\u3088\u3046\u306a\u4ed5\u7d44\u307f\u304c\u306a\u3044\u304b\u3089\u3060\u3068\u8003\u3048\u3066\u3044\u308b\u3002FFT\/IFFT \u3067\u3053\u306e\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u305f\u3068\u3053\u308d\u3060\u3044\u3076\u6539\u5584\u3057\u305f\u3002<br \/>\nFFT\/IFFT \u306e\u7d50\u679c\u304b\u3089\u5171\u9cf4\u3068\u304b\u305d\u3046\u3044\u3046\u56de\u8def\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304d\u305f\u3044\u3002\u3064\u307e\u308a\u3001X \u7dda\u5199\u771f\u3060\u3051\u3058\u3083\u30e2\u30c7\u30eb\u5316\u306b\u306f\u4e0d\u5341\u5206\u3060\u3063\u305f\u3068\u3044\u3046\u3053\u3068\u3060\u305d\u3046\u3067\u3059\u3002<br \/>\n\u4f7f\u3063\u3066\u3044\u308b\u306e\u306f XC3S4000.<br \/>\n[\u5b50\u97f3\u30fb\u6bcd\u97f3\u8a8d\u8b58\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u97f3\u58f0\u524d\u51e6\u7406\u56de\u8def]<br \/>\n\u6ce2\u5f62\u304c\u30d5\u30ec\u30fc\u30e0\u5185\u3067\u3042\u308b\u57fa\u6e96\u5024\u3092\u4f55\u5ea6\u901a\u904e\u3057\u305f\u304b\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b (\u30bc\u30ed\u30af\u30ed\u30b9\u51e6\u7406)\u3002\u6bcd\u97f3\u306f\u5b9a\u5e38\u6ce2\u5f62\u3001\u5b50\u97f3\u306f\u975e\u5b9a\u5e38\u306a\u306e\u3067\u3001\u3053\u308c\u3067\u5224\u5225\u3067\u304d\u308b\u6a21\u69d8\u3002\u30d4\u30c3\u30c1\u5468\u671f\u306f\u8a71\u8005\u306b\u3088\u3063\u3066\u9055\u3046\u306e\u3067\u3001\u30e1\u30ea\u30f3\u5909\u63db (Mellin Transform) \u3068\u3044\u3046\u306e\u3092\u3064\u304b\u3063\u3066\u6b63\u898f\u5316\u3059\u308b\u3002<br \/>\n\u3053\u306e\u3042\u305f\u308a\u3092\u3054\u308a\u3054\u308a\u3084\u3063\u3066\u304b\u3089 Haar-wavelet \u3084\u3063\u3066\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30de\u30c3\u30c1\u30f3\u30b0\u3002<br \/>\n\u524d\u51e6\u7406\u3092 HW \u3067\u3084\u3063\u3066\u3001\u6700\u5f8c\u306f\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u51e6\u7406\u3002<br \/>\n\u30bc\u30ed\u30af\u30ed\u30b9\u3068\u304b\u3001binary tree \u3067\u5408\u8a08\u306e\u8a08\u7b97\u3084\u308b\u3088\u308a FIR \u307f\u305f\u3044\u306b\u76f4\u5217\u3067\u3084\u3063\u305f\u307b\u3046\u304c\u3044\u3044\u3093\u3058\u3083\u306a\u3044\uff1f (Virtex \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u304b\u306b\u66f8\u3044\u3066\u3042\u308b\u3088\u306d) \u2192 \u691c\u8a0e\u3057\u3066\u306a\u3044\u3068\u306e\u3053\u3068  (\u30b2\u30fc\u30c8\u305f\u304f\u3055\u3093\u4f7f\u3063\u3066\u3082\u3044\u3044\u3084\u3001\u3068\u601d\u3063\u305f\u306e\u3067\u3002\u3042\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u547d\u306a\u306e\u3067)<br \/>\n[\u540c\u671f\u30b7\u30d5\u30c8\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u3088\u308b2\u6b21\u5143\u30a2\u30ec\u30a4\u578b\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2]<br \/>\n\u540c\u671f\u30b7\u30d5\u30c8\u4f1d\u9001\u9762\u767d\u3044\u306a\u3002<br \/>\n2\u6b21\u5143\u30a2\u30ec\u30a4\u3067\u4ed6\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30c7\u30fc\u30bf\u3092\u53c2\u7167\u3059\u308b\u3068\u304d\u306b\u3001\u5168\u4f53\u3067\u540c\u671f\u3057\u3066\u540c\u3058\u65b9\u5411\u306b\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3059\u308b\u3053\u3068\u3067\u3001\u914d\u7dda\u3084\u7af6\u5408\u3092\u524a\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u76f4\u63a5\u4f1d\u9001\u3059\u308b\u306e\u3068\u3061\u304c\u3063\u3066\u3001\u9014\u4e2d\u3067\u4e2d\u7d99\u3057\u3066\u3082\u3089\u308f\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306f\u3042\u308b\u3002<br \/>\n\u3053\u308c\u3067\u5b64\u7acb\u70b9\u9664\u53bb\u3068\u304b\u3084\u308b\u306e\u3002\u304b\u3063\u3051\u30fc\u3002<br \/>\n\u985e\u4f3c\u5ea6\u5224\u5b9a\u3068\u304b\u306f\u96e3\u3057\u305d\u3046\u3060\u306a\u3042\u3002\u305d\u306e\u5834\u5408\u306f\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3092\u3084\u308a\u3068\u308a\u3059\u308b\u306e\u304b\u3002<br \/>\n\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u306f block module \u306e\u306a\u304b\u306e control processor \u3068\u306e\u3053\u3068\u3002<br \/>\n[\u968e\u5c64\u578b\u753b\u50cf\u7279\u5fb4\u306e\u5b66\u7fd2\u6a5f\u80fd\u3092\u6709\u3059\u308b\u753b\u50cf\u8a8d\u8b58\u30b7\u30b9\u30c6\u30e0]<br \/>\n\u6728\u69cb\u9020\u578b\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u4f5c\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u9854\u753b\u50cf\u3092\u5206\u985e\u3057\u305f\u308a\u3002<br \/>\n\u9854\u753b\u50cf\u5168\u9818\u57df\u3067\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3060\u3068\u5927\u5909\u306a\u306e\u3067\u3001\u7279\u5fb4\u9818\u57df\u3068\u975e\u7279\u5fb4\u9818\u57df\u3092\u81ea\u52d5\u7684\u306b\u3002<br \/>\nSOM \u304b\u30fb\u30fb\u30fb<br \/>\nSOM \u306f4\u5c64\u3002\u305d\u308c\u305e\u308c\u9055\u3046\u89e3\u50cf\u5ea6\u3067\u5165\u308c\u308b\u3002\u3060\u3093\u3060\u3093\u9ad8\u89e3\u50cf\u5ea6\u306b\u306a\u308b\u3002<br \/>\n[Low area and high speed logarithmic converter for DSP applications]<br \/>\nNo shown.<br \/>\n[\u5206\u5272MTMDDs for CF\u30de\u30b7\u30f3\u306b\u3064\u3044\u3066]<br \/>\nMTMDD\u306f\u591a\u5024\u6c7a\u5b9a\u30b0\u30e9\u30d5\u7684\u306a\u3082\u306e\u3002<br \/>\n\u9045\u304f\u306f\u306a\u308b\u3051\u3069\u7bc0\u70b9\u6570\u3092\u304c\u3063\u3064\u308a\u7bc0\u7d04\u3067\u304d\u308b\u306e\u3067\u3001\u5206\u5272\u3057\u306a\u3044\u3084\u3064\u3067\u306f\u8868\u73fe\u3067\u304d\u306a\u3044\u3082\u306e\u3092\u8868\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3002<br \/>\n(\u3061\u3087\u3063\u3068\u547c\u3070\u308c\u3066\u4f1a\u5834\u306e\u5916\u306b\u51fa\u3066\u307e\u3057\u305f\u3002\u3054\u3081\u3093\u306a\u3055\u3044&#8230;)<br \/>\n\u591a\u5206\u5c90\u547d\u4ee4\u3068 output \u547d\u4ee4\u3060\u3051\u3067\u52d5\u304f\u3002<br \/>\nMCNC89 benchmark \u3067\u8a55\u4fa1\u3057\u3066\u3044\u308b\u304c\u3082\u3046\u3061\u3087\u3063\u3068\u5b9f\u7528\u7684\u306a\u65b9\u5411\u306b\u3082\u3063\u3066\u3044\u304d\u305f\u3044\u3002\u5408\u6210\u30c4\u30fc\u30eb\u3068\u304b\u3002<br \/>\n[\u512a\u5148\u5ea6\u4ed8\u304dSMT\u30d7\u30ed\u30bb\u30c3\u30b5\u306b\u304a\u3051\u308b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u51e6\u7406\u7528IPC\u5236\u5fa1\u6a5f\u69cb]<br \/>\n\u7d44\u307f\u8fbc\u307f\u3067\u3082\u6027\u80fd\u306f\u307b\u3057\u3044\u3051\u3069\u3001SMT \u3068\u304b\u4f7f\u3046\u3068\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6027\u306e\u4fdd\u8a3c\u304c\u3080\u305a\u304b\u3057\u3044\u3002<br \/>\n&#8211; WCET \u89e3\u6790 (worst case execution time)<br \/>\n&#8211; IPC \u5236\u5fa1 (instruction per clock \u3092\u5236\u5fa1\u3059\u308b)<br \/>\nResponsive multithreaded processor: \u6700\u59278\u30b9\u30ec\u30c3\u30c9\u3001\u512a\u5148\u5ea6\u3064\u304d<br \/>\n\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u76ee\u6a19 IPC \u3092\u8a2d\u5b9a\u3057\u3066\u3001\u5236\u5fa1\u5468\u671f\u3054\u3068\u306b\u8abf\u6574\u3059\u308b\u3002<br \/>\n\u547d\u4ee4\u30d5\u30a7\u30c3\u30c1\u306e\u5236\u5fa1\u3060\u3051\u3060\u3068\u30ea\u30bd\u30fc\u30b9\u4e0d\u8db3\u306b\u306f\u5bfe\u5fdc\u3067\u304d\u306a\u3044\u304b\u3089\u3001\u4e2d\u306e\u512a\u5148\u5ea6\u306e\u5236\u5fa1\u3082\u3057\u306a\u3044\u3068\u3002\u305d\u3053\u306f\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u3002<br \/>\n\u512a\u5148\u5ea6\u306f\u3072\u3068\u3064\u4e0a\u306e\u30ec\u30d9\u30eb\u306e\u3082\u306e\u304b\u3089\u501f\u308a\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<br \/>\n\u5236\u5fa1\u30b5\u30a4\u30af\u30eb\u306f 10k clock cycle \u3002<br \/>\n[ITRON\u4ed5\u69d8OS\u306e\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u30d7\u30ed\u30bb\u30c3\u30b5\u62e1\u5f35]<br \/>\n[ \u591a\u96fb\u6e90\u53ef\u5909\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u30eb\u30fc\u30bf\u306b\u304a\u3051\u308b\u96fb\u6e90\u30c9\u30e1\u30a4\u30f3\u30b5\u30a4\u30ba\u306e\u89e3\u6790 ]<br \/>\nDVFS \u306f\u96e3\u3057\u3044\u3088\u306d\u3002\u305b\u3044\u305c\u3044\u96a3\u63a5\u3059\u308b\u30eb\u30fc\u30bf\u3092\u6574\u6570\u500d\u306e\u5468\u6ce2\u6570\u306b\u3059\u308b\u3068\u304b\u30fb\u30fb\u30fb\uff08\u3044\u3084\u4f4d\u76f8\u304c\u30fb\u30fb\u30fb\uff09<br \/>\n\u540c\u3058\u5468\u6ce2\u6570\u3067\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u6bb5\u6570\u3092\u5909\u3048\u308b\u30022 cycle mode \u3068 3 cycle mode. \u3067\u3082\u3001\u3042\u3093\u307e\u308a\u3057\u3087\u3063\u3061\u3085\u3046\u5909\u3048\u308b\u3068\u304b\u3048\u3063\u3066\u60aa\u304f\u306a\u308b\u3002<br \/>\nNAS Parallel Benchmark.<br \/>\n\u6027\u80fd\u306f 2.1%\u60aa\u5316\u3002\u96fb\u529b\u306f10%\u6539\u5584\u3002\u9762\u7a4d\u306f 14% \u3060\u3063\u305f\u304b\u306a\uff1f<br \/>\n\u30eb\u30fc\u30bf\u5358\u4f4d\u3067\u306f\u306a\u304f\u3066\u3001\u5165\u529b\u30c1\u30e3\u30cd\u30eb\u3054\u3068\u306b\u96fb\u6e90\u96fb\u5727\u3092\u304b\u3048\u308b\u3068\u304b\u3092\u304b\u3093\u304c\u3048\u308b\u3002\u3067\u3082\u3042\u3093\u307e\u308a\u7c92\u5ea6\u3053\u307e\u304b\u304f\u3059\u308b\u3068\u5927\u5909\u3058\u3083\u306a\u3044\u304b\u306a\u30fc\u3002<br \/>\n\u96fb\u5727\u4e0b\u3052\u305f\u3089 wormhole \u304b\u3089 virtual cut through \u3068\u304b\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u306d\u3001\u307f\u305f\u3044\u306a\u30b3\u30e1\u30f3\u30c8\u3082\u3002<br \/>\n[\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30fb\u30ea\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308b\u8d85\u9ad8\u901f\u4fe1\u53f7\u306e\u4fe1\u53f7\u54c1\u8cea\u6539\u5584\u306e\u63d0\u6848]<br \/>\n10GHz \u3060\u3068\u6ce2\u9577\u306f 1.5cm \u306a\u306e\u3067\u3001LSI \u306e\u4e2d\u3067\u3082\u30b7\u30b0\u30ca\u30eb\u30a4\u30f3\u30c6\u30b0\u30ea\u30c6\u30a3\u3067\u304c\u554f\u984c\u306b\u306a\u308b\u305c\u3002<br \/>\n\u4f1d\u9001\u8def\u3092\u3044\u304f\u3064\u3082\u306e\u7dda\u5e45\u306e\u533a\u9593\u306b\u5206\u3051\u3066\u3001\u3046\u307e\u304f\u53cd\u5c04\u3055\u305b\u3066\u3064\u305f\u3048\u308b\u3002SPICE \u306b\u304b\u3051\u3066 GA \u3067\u9078\u629e\u6dd8\u6c70\u3002<br \/>\n\u5b9f\u6a5f\u8a55\u4fa1\u30021GHz \u3067\u3084\u308b\u306e\u306f\u96e3\u3057\u3044\u306e\u3067 scale up \u6cd5\u3002250MHz \u3068\u304b 500MHz \u3067\u8a55\u4fa1\u3059\u308b\u3002<br \/>\n10GS\/sec \u306e 2GHz \u30aa\u30b7\u30ed\u3002\u30a2\u30af\u30c6\u30a3\u30d6\u30d7\u30ed\u30fc\u30d6\u3002<br \/>\n\u3082\u304650\u03a9\u914d\u7dda\u3058\u3083\u3060\u3081\u306a\u306e\u304b\u3002<br \/>\n4GHz \u304f\u3089\u3044\u307e\u3067\u3044\u3051\u305d\u3046\u3002<br \/>\n\u30b3\u30cd\u30af\u30bf\u3067\u306f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u304c\u5165\u308b\u306e\u3067\u3001\u305d\u3046\u3044\u3046\u306e\u3082\u8a66\u3057\u3066\u307f\u308b\u3002\u3044\u3051\u308b\u3002<br \/>\n\u30af\u30ed\u30c3\u30af\u4fe1\u53f7\u3060\u3051\u3058\u3083\u306a\u304f\u3066\u3001\u30a4\u30f3\u30d1\u30eb\u30b9\u3092\u5165\u308c\u305f\u3068\u304d\u306e\u5fdc\u7b54\u3092\u307f\u308b\u3053\u3068\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u4fe1\u53f7\u3067\u3082\u3061\u3083\u3093\u3068 eye \u304c\u958b\u304f\u3002<br \/>\n\u8868\u76ae\u52b9\u679c\u3067\u9ad8\u5468\u6ce2\u6210\u5206\u304c\u629c\u3051\u3066\u6ce2\u5f62\u304c\u4e38\u304f\u306a\u308b\u306e\u3092\u9632\u3050\u306b\u306f\u3075\u3064\u3046 pre-emphasis \u3068\u304b equalizer \u304c\u5fc5\u8981\u3002STL \u306f\u53cd\u5c04\u6ce2\u3092\u91cd\u306d\u5408\u308f\u305b\u3066\u3084\u308b\u306e\u3067\u306a\u304b\u306a\u304b\u3080\u305a\u304b\u3057\u3044\u304c\u3001\u53cd\u5c04\u7aef\u3092\u3064\u3051\u305f\u3057\u3066\u3084\u308b\u3053\u3068\u3067\u304b\u306a\u308a\u304d\u308c\u3044\u306a\u6ce2\u5f62\u306b\u3002<br \/>\n\u3059\u3052\u3048\u30fb\u30fb\u30fb<br \/>\nSIP \u3068\u304b\u306e\u77ed\u3044\u4f1d\u9001\u8def\u3067\u3082\u4f7f\u3048\u307e\u3059\u304b\uff1f (\u5c71\u5d0e\u5148\u751f) \u2192 \u5b9f\u9a13\u7528\u306e\u57fa\u677f\u306f\u30b9\u30b1\u30fc\u30eb\u30a2\u30c3\u30d7\u5b9f\u9a13\u306e\u305f\u3081\u306b\u9577\u304f\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u57fa\u672c\u7684\u306b\u306f\u77ed\u304f\u3066\u3082\u3044\u3051\u308b\u306f\u305a\u3002\u6ce2\u9577\u306e\u554f\u984c\u3082\u3042\u308b\u3051\u3069\u3001\u30df\u30ea\u5358\u4f4d\u3067\u3082\u4f7f\u3048\u305d\u3046\u306a\u7d50\u679c\u304c\u51fa\u3066\u3044\u308b\u3002<br \/>\n\u52d5\u4f5c\u5468\u6ce2\u6570\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5909\u308f\u308b\u3088\u3046\u306a\u5834\u5408\u306f\u3069\u3046\u3067\u3059\u304b\uff1f (\u95a2\u6839\u5148\u751f) \u2192 \u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u3092\u3064\u3051\u3066\u3001\u30ad\u30e3\u30d1\u30b7\u30bf\u3092 on\/off \u3059\u308b\u3053\u3068\u3067\u3067\u304d\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u306f\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u8a66\u3057\u3066\u3044\u308b\u3002<br \/>\n\u4e00\u672c\u306e\u7dda\u3092\u8a2d\u8a08\u3059\u308b\u306e\u306b\u6570\u6642\u9593\u304b\u304b\u308b\u306e\u304c\u554f\u984c\u3060\u3051\u3069\u3001\u307e\u3042\u3001\u3060\u3044\u3058\u3087\u3046\u3076\u304b\u3002GA \u30672000\u4e16\u4ee3\u304f\u3089\u3044\u3002<br \/>\n[\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u89e3\u6790\u306b\u3088\u308b\u30aa\u30f3\u30c1\u30c3\u30d7\u30eb\u30fc\u30bf\u306e\u30d0\u30f3\u30c9\u5e45\u5236\u5fa1]<br \/>\n\u7d44\u307f\u8fbc\u307f\u3068\u304b\u3067\u306f\u30d8\u30c6\u30ed NoC \u3082\u51fa\u3066\u304f\u308b\u3088\u306d\u2192\u901a\u4fe1\u91cf\u306e\u504f\u308a\u3082\u8d77\u304d\u308b\u3088\u306d\u3002<br \/>\nFPGA \u306e long line \u307f\u305f\u3044\u306a\u306e\u3092\u5165\u308c\u308b\u3068\u304b\u3044\u3046\u7814\u7a76\u3082\u3042\u308b\u3002<br \/>\n\u3067\u3001\u901a\u4fe1\u91cf\u304c\u591a\u3044\u3068\u3053\u308d\u306f\u30d3\u30c3\u30c8\u5e45\u3092\u5897\u3084\u3059\u3053\u3068\u306b\u3057\u305f\u3002<br \/>\n\u7570\u306a\u308b\u30d3\u30c3\u30c8\u5e45\u3067\u3082\u901a\u4fe1\u3067\u304d\u305f\u308a VC \u306e\u3042\u305f\u308a\u3092\u3061\u3087\u3063\u3068\u3044\u3058\u3063\u305f\u308a\u3057\u3066\u30eb\u30fc\u30bf\u3092\u4f5c\u3063\u305f\u3088\u3002<br \/>\n\u592a\u3044\u3068\u3053\u308d\u304b\u3089\u7d30\u3044\u3068\u3053\u308d\u306b\u3044\u304f\u306e\u306f\u6c17\u3092\u3064\u3051\u306a\u3044\u3068\u30c7\u30fc\u30bf\u58ca\u3059\u3002<br \/>\nVirtual cut through \u306a\u306e\u306f\u306a\u305c\uff1f \u2192 wormhole \u3060\u3068\u30d3\u30c3\u30c8\u5e45\u304c\u304b\u308f\u308b\u3068\u3053\u308d\u3067\u8a70\u307e\u3063\u3061\u3083\u3046\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3063\u3059\u3002<br \/>\nstatic \u306a\u89e3\u6790\u304c\u3067\u304d\u308b\u306e\u306a\u3089 VC \u306e\u6570\u3092\u5909\u3048\u3066\u3069\u3046\u3053\u3046\u3001\u3068\u3044\u3046\u306e\u3001\u3067\u304d\u308b\u3093\u3058\u3083\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u9811\u5f35\u3063\u3066\u304f\u3060\u3055\u3044\u7684\u306a\u30b3\u30e1\u30f3\u30c8\u3002<br \/>\n[\u30ea\u30b3\u30f3\u30d5\u30a3\u30ae\u30e3\u30e9\u30d6\u30eb\u30d7\u30ed\u30bb\u30c3\u30b5STP\u3092\u7528\u3044\u305f\u7701\u96fb\u529b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u306e\u9ad8\u901f\u8fd1\u4f3c\u89e3\u6cd5]<br \/>\n\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u96c6\u7d04\u306b\u3088\u308a\u30eb\u30fc\u30bf\u3092\u843d\u3068\u305b\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u554f\u984c\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6027\u80fd\u3092\u7dad\u6301\u3057\u3064\u3064\u6700\u5c0f\u306e\u6d88\u8cbb\u96fb\u529b\u306b\u306a\u308b\u3088\u3046\u306a\u30c8\u30dd\u30ed\u30b8\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u3002<br \/>\n80\u30ce\u30fc\u30c9200\u30ea\u30f3\u30af\u306720sec \u304c\u76ee\u6a19\u3060\u3051\u3069\u3001\u3044\u307e\u306e\u3068\u3053\u308d2\u5206\u304f\u3089\u3044\u304b\u304b\u3063\u3066\u308b\u3002<br \/>\nSTP (\u3068\u3044\u3046\u304b DRP) \u306a\u3064\u304b\u3057\u3044\u30fb\u30fb\u30fb<br \/>\n\u30c8\u30dd\u30ed\u30b8\u306f BRITE \u3067\u3064\u304f\u3063\u305f (waxman model).<br \/>\n\u30ce\u30fc\u30c9\u6570\u304c\u5c0f\u3055\u3044\u3068 Intel \u306e\u307b\u3046\u304c\u65e9\u3044\u3051\u3069\u3001\u3042\u3093\u307e\u308a\u5927\u304d\u3044\u3068\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u6570\u304c\u305f\u308a\u306a\u3044\u3002<br \/>\nVLAN\u306f\u308a\u304b\u3048\u308b\u306e\u3082\u5927\u5909\u3060\u304b\u308920sec\u3042\u308c\u3070\u3042\u3093\u307e\u308a\u65e9\u3059\u304e\u3066\u3082\u3057\u304b\u305f\u304c\u306a\u304f\u3001\u307e\u3042\u5145\u5206\u3001\u3068\u3044\u3046\u3053\u3068\u306a\u306e\u304b\u3002<br \/>\n[\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u51e6\u7406\u306b\u5411\u3051\u305f\u30ea\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30e9\u30d6\u30eb\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u5b9f\u73fe\u3068\u8a55\u4fa1]<br \/>\nreconfigurable processor \u3067\u6d6e\u52d5\u5c0f\u6570\u70b9\u6f14\u7b97\u3092\u3084\u308a\u305f\u3044\u3002\u3044\u3044\u306d\u3002<br \/>\n16&#215;16 \u306eALU \u30a2\u30ec\u30a4\u304c\u8f09\u3063\u3066\u3044\u308b\u3002<br \/>\n\u6b63\u898f\u5316\u3068\u4e38\u3081\u306f\u3001\u3061\u3087\u3063\u3068\u5927\u5909\u3060\u3051\u3069 ALU \u30a2\u30ec\u30a4\u3067\u3084\u3063\u3064\u3051\u308b\u3053\u3068\u306b\u3057\u305f\u3002<br \/>\nALU \u304c\u3067\u304d\u308b\u6f14\u7b97\u306e\u7a2e\u985e\u3092\u5897\u3084\u3057\u305f\u308a\u3001\u30b9\u30a4\u30c3\u30c1\u306e\u3068\u3053\u308d\u3092\u3061\u3087\u3063\u3068\u3044\u3058\u3063\u3066\u3001\u30d3\u30c3\u30c8\u5206\u5272 (sign, exponent, fraction) \u3092\u3084\u308a\u3084\u3059\u304f\u3057\u3066\u3042\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u30011\u30d6\u30ed\u30c3\u30af\u3042\u305f\u308a\u306econfiguration bit\u306f43\u304b\u308973\u306b\u5897\u52a0\u3002<br \/>\n\u3067\u3001\u3053\u3093\u3069\u306f\u66f8\u304d\u8fbc\u307f\u304c\u5927\u5909\u306a\u306e\u3067\u3001\u8907\u6570\u540c\u6642\u66f8\u304d\u8fbc\u307f\u3057\u305f\u308a\u3068\u304b\u3002\u306a\u304b\u306a\u304b\u3044\u3044\u3067\u3059\u306d\u3002<br \/>\nFLOPS \u3069\u3093\u304f\u3089\u3044\u306b\u306a\u308a\u305d\u3046\u3067\u3059\u304b\u306d? (\u306f\u307e\u3060\u3055\u3093) \u2192 \u307e\u3060\u3042\u3093\u307e\u308a\u306f\u3063\u304d\u308a\u3057\u3066\u3044\u307e\u305b\u3093\u3002<br \/>\n\u53ef\u5909\u8ad6\u7406\u90e8\u306b\u306f\u30ec\u30b8\u30b9\u30bf\u3068\u304bFF\u306f? (\u308f\u305f\u306a\u3079\u3055\u3093\uff20\u5ca1\u5c71) \u2192 \u3042\u308a\u307e\u3059\u3042\u308a\u307e\u3059<br \/>\n[\u52d5\u7684\u518d\u69cb\u6210\u53ef\u80fd\u306aSU(3)\u30b9\u30d4\u30f3\u56de\u8def\u3092\u7528\u3044\u305f\u30ed\u30dc\u30c3\u30c8\u5236\u5fa1\u4e2d\u67a2\u306e\u8a2d\u8a08]<br \/>\n\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3060\u3051\u3067\u306a\u304f\u30bb\u30f3\u30b5\u3084\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u3092\u5236\u5fa1\u3059\u308b\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3082\u66f4\u65b0\u3057\u306a\u3044\u3068\u3002<br \/>\nSU(3) \u3068\u3044\u3046\u306e\u306f\u7fa4\u8ad6\u304c\u30d9\u30fc\u30b9\u3060\u305d\u3046\u306a\u3002\u9589\u3058\u305f\u30d9\u30af\u30c8\u30eb\u7a7a\u9593\u3067\u306e\u56de\u8ee2\u3092\u8868\u3059\u7fa4\u3068\u3057\u3066\u3001\u30ea\u30fc\u7fa4\u3068\u3044\u3046\u306e\u304c\u3042\u308b\u3002\u72b6\u614b\u6a5f\u68b0\u3082\u9589\u3058\u305f\u72b6\u614b\u7a7a\u9593\u306e\u306a\u304b\u3067\u72b6\u614b\u9077\u79fb\u3059\u308b\u304b\u3089\u4f3c\u3066\u308b&#8230;\u3068\u3002<br \/>\n\u305d\u308c\u3067\u3053\u308c\u3092\u4f7f\u3063\u3066\u72b6\u614b\u9077\u79fb\u56f3\u304c\u6210\u9577\u3059\u308b\u3088\u3046\u306a\u306e\u3092\u3084\u308a\u307e\u3057\u3087\u3046\u3068\u3002<br \/>\n\u306a\u3093\u304b\u3059\u3052\u3048\u306a\u3002<br \/>\n[\u79fb\u52d5\u578b\u30ed\u30dc\u30c3\u30c8\u306b\u7d71\u5408\u3059\u308b\u77e5\u80fd\u51e6\u7406\u56de\u8def]<br \/>\n\u5168\u4f53\u306e\u3044\u308d\u3044\u308d\u3002\u97f3\u58f0\u5408\u6210\u3068\u304b\u9854\u8a8d\u8b58\u306f\u3053\u3053\u306b\u3064\u306a\u304c\u3063\u3066\u305f\u306e\u304b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5348\u524d\u4e2d\u306f\u8fb2\u5de5\u5927\u30bb\u30c3\u30b7\u30e7\u30f3\u3060\u306a&#8230; \u95a2\u6839\u5148\u751f\u306e\u5b66\u751f\u3055\u3093\u304c\u30e1\u30a4\u30f3\u3002 [WEB\u30a2\u30d7\u30ea\u306b\u7528\u3044\u308bFPGA\u7528IP\uff1aTCP\/IP\u56de\u8def] ICMP \u3068\u3001TCP \u306e MSS \u3068\u304b window scaling \u3068\u304b timest &hellip; <a href=\"https:\/\/yasu2.prosou.nu\/blog\/index.php\/2012\/01\/25\/2642\/\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;RECONF Jan.25, 2012&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[10],"tags":[],"class_list":["post-2642","post","type-post","status-publish","format-standard","hentry","category-conference-logs"],"_links":{"self":[{"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/2642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=2642"}],"version-history":[{"count":0,"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/posts\/2642\/revisions"}],"wp:attachment":[{"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=2642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=2642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yasu2.prosou.nu\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=2642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}