{"id":179,"date":"2008-10-28T02:52:45","date_gmt":"2008-10-28T06:52:45","guid":{"rendered":"http:\/\/www.cchsu.com\/arthur\/?p=179"},"modified":"2008-11-01T02:59:15","modified_gmt":"2008-11-01T06:59:15","slug":"pdc-day-1-parallel-computing","status":"publish","type":"post","link":"http:\/\/www.cchsu.com\/arthur\/2008\/10\/28\/179\/","title":{"rendered":"PDC 2008: Day 1, Parallel Computing"},"content":{"rendered":"<p>\u73fe\u4eca\u7684\u4e3b\u6d41\u5e02\u5834\u88e1\uff0cCPU \u55ae\u4e00\u6838\u5fc3\u7684\u8655\u7406\u901f\u5ea6\u589e\u52a0\u6709\u9650\uff0c\u800c\u786c\u9ad4\u5927\u5ee0\u5247\u81f4\u529b\u65bc\u591a\u6838\u8655\u7406\u5668\u7684\u958b\u767c\u3002\u591a\u6838\u8655\u7406\u5668\u7684\u5f37\u9805\u5728\u65bc\u5e73\u884c\u8655\u7406\uff0c\u4f46\u5b83\u5fc5\u9808\u9760\u8edf\u9ad4\u7684\u914d\u5408\u624d\u80fd\u6709\u6548\u767c\u63ee\u6548\u80fd\u3002\u5fae\u8edf\u5728 Visual Studio 2010 \u4e2d\u63a8\u51fa\u4e86\u4e0d\u5c11\u6771\u897f\u4f86\u5354\u52a9\u5e2b\u7a0b\u5de5\u5011\u5beb\u4f5c\u591a\u7dd2\u7684\u7a0b\u5f0f\uff0c\u5728 PDC \u4e2d\u81ea\u7136\u8981\u62ff\u51fa\u4f86\u79c0\u4e00\u4e0b\u5566\u3002<\/p>\n<p>\u5fae\u8edf\u5efa\u8b70\u7684 best practice \u975e\u5e38\u503c\u5f97\u501f\u93e1\u3002\u82e5\u8981\u6539\u9032\u7a0b\u5f0f\u7684\u57f7\u884c\u6548\u7387\uff0c\u61c9\u8a72\u4f9d\u5faa\u4ee5\u4e0b\u7684\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u5efa\u7acb\u6548\u80fd\u8abf\u6821\u7684\u76ee\u6a19\uff0c\u627e\u51fa\u91cf\u6e2c\u7684\u65b9\u6cd5\u3002\u5118\u91cf\u4f7f\u7528\u771f\u5be6\u7684\u8cc7\u6599\u548c\u76f4\u5be6\u7684\u74b0\u5883\uff0c\u5e73\u884c\u8655\u7406\u4e26\u4e0d\u662f\u842c\u9748\u4e39\uff0c\u771f\u5be6\u4e16\u754c\u4e2d\u8a31\u591a\u5176\u4ed6\u7684\u56e0\u7d20\u624d\u662f\u6548\u80fd\u7684\u6bba\u624b (\u5982 I\/O\u3001memory latency)<\/li>\n<li>\u91cf\u6e2c\u73fe\u6709\u7684\u6548\u80fd\uff0c\u627e\u51fa\u57f7\u884c\u71b1\u9ede<\/li>\n<li>\u60f3\u8fa6\u6cd5\u8abf\u6821\u73fe\u6709\u7684\u7a0b\u5f0f<\/li>\n<li>\u82e5\u8abf\u6821\u7121\u6548\uff0c\u627e\u770b\u770b\u662f\u5426\u6709\u5e73\u884c\u8655\u7406\u7684\u6a5f\u6703: CPU intensive\uff0c\u6216\u662f\u53ef\u4ee5\u8b93 UI \u53cd\u61c9\u8b8a\u5feb\u589e\u52a0 perceptual performance<\/li>\n<li>\u82e5\u53ef\u5e73\u884c\u8655\u7406\uff0c\u5247\u5229\u7528\u7a0b\u5f0f\u6280\u5de7\u53bb\u6700\u4f73\u5316\u71b1\u9ede<\/li>\n<\/ol>\n<p>Visual Studio \u7684\u76ee\u6a19\u662f\u60f3\u8fa6\u6cd5\u8b93\u5beb\u4f5c\u5e73\u884c\u8655\u7406\u7684\u7a0b\u5f0f\u8b8a\u5f97\u5bb9\u6613\u4e00\u4e9b\uff0c\u5b83\u63d0\u4f9b\u8a31\u591a\u57fa\u790e\u8a2d\u65bd\u548c\u51fd\u5f0f\u5eab (\u5982 Concurrent runtime, Parallel Pattern Library, PLINQ \u7b49\u7b49)\uff0c\u4e5f\u63d0\u4f9b\u8a31\u591a profiling \u548c debugging \u7684\u5de5\u5177 (\u6211\u500b\u4eba\u7684\u504f\u898b\u662f\u9019\u4e9b\u5de5\u5177\u548c VTune \u597d\u50cf!)\u3002\u56e0\u6b64\uff0c\u5e2b\u7a0b\u5de5\u5c31\u53ef\u4ee5\u96c6\u4e2d\u7cbe\u529b\u5728\u8a2d\u8a08 synchronization \u4e0a\uff0c\u800c\u4e0d\u5fc5\u5230\u8655\u5c0b\u5c0b\u8993\u8993\u597d\u7528\u7684\u7a0b\u5f0f\u5eab\uff0c\u6216\u662f\u82b1\u8a31\u591a\u8cc7\u6e90\u958b\u767c\u81ea\u5df1\u7684\u7a0b\u5f0f\u5eab\u3002<\/p>\n<p>\u5fae\u8edf\u7684 concurrent runtime \u548c PPL \u5728\u67d0\u7a2e\u7a0b\u5ea6\u4e0a\u548c OpenMP \u6709\u91cd\u758a\u6027\uff0c\u4e0d\u904e\u5fae\u8edf\u4e0a\u5f9e VP \u4e0b\u5230\u5e2b\u7a0b\u5de5\u4e00\u5f8b\u53e3\u98a8\u7dca\u9589\uff0c\u4e0d\u9858\u610f\u8a0e\u8ad6\u548c OpenMP \u7684\u672a\u4f86\u6709\u95dc\u7684\u4efb\u4f55\u554f\u984c\u3002\u6b64\u5916\uff0cPPL \u5927\u91cf\u5229\u7528 C++0x \u7684 lambda expression\uff0c\u4e26\u523b\u610f\u5730\u5c07\u6240\u6709\u7684\u6771\u897f\u505a\u6210 STL-like\u3002\u4e0d\u904e\u5462\uff0c\u5fae\u8edf\u81ea\u5df1\u4e5f\u4e0d\u77e5\u9053\u9019\u6771\u897f\u662f\u5426\u6703\u88ab C++0x committee \u63a1\u7d0d\u70ba\u6a19\u6e96\uff0c\u73fe\u5834\u807d\u8d77\u4f86\u5fae\u8edf\u4e5f\u6c92\u529b (\u6216\u662f\u6c92\u52d5\u529b) \u53bb\u63a8\u9019\u500b\u6771\u897f\u5c31\u662f\u4e86\u3002<\/p>\n<p>\u76ee\u524d PPL \u6700\u5927\u7684\u554f\u984c\u5728\u65bc\u5b83\u76ee\u524d\u662f\u91dd\u5c0d stack object \u4f86\u8a2d\u8a08\u7684\uff0c\u82e5\u7528\u5230 heap object\uff0c\u4e8b\u60c5\u8b8a\u5f97\u5f88\u8907\u96dc\u3002\u96d6\u7136\u73fe\u5834\u7684 demo \u4e2d\u6709\u7528\u5230 heap object\uff0c\u4f46\u7a0b\u5f0f\u5eab\u4e26\u4e0d\u80fd\u63d0\u4f9b\u4e00\u822c\u5316\u7684 heap object management\uff0c\u5fae\u8edf\u4e5f\u5766\u627f\u4ed6\u5011\u6b63\u5728\u7814\u7a76\u4e2d\uff0c\u4f46\u5177\u9ad4\u7d50\u679c\u5728 Visual Studio 2010 \u4e2d\u61c9\u8a72\u662f\u770b\u4e0d\u5230\u4e86\u3002\u6211\u500b\u4eba\u8a8d\u70ba\u82e5\u7528\u5230 heap object \u7684\u8a71\uff0c\u5927\u90e8\u4efd\u9084\u662f\u5f97\u9760\u5e2b\u7a0b\u5de5\u81ea\u5df1\u505a ref counting \u548c object lifecycle management \u6bd4\u8f03\u5be6\u969b\uff0c\u60f3\u8981\u4f9d\u8cf4\u7a0b\u5f0f\u5eab\u4f86\u5e6b\u5fd9\u7684\u8a71\uff0c\u90a3\u4e7e\u8106\u53bb\u5beb managed code \u6216 Java \u7b97\u4e86\uff0cVM \u76f4\u63a5\u5e6b\u4f60\u641e\u5b9a\u6240\u6709 heap \u7684\u554f\u984c \ud83d\ude00<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u73fe\u4eca\u7684\u4e3b\u6d41\u5e02\u5834\u88e1\uff0cCPU \u55ae\u4e00\u6838\u5fc3\u7684\u8655\u7406\u901f\u5ea6\u589e\u52a0\u6709\u9650\uff0c\u800c\u786c\u9ad4\u5927\u5ee0\u5247\u81f4\u529b\u65bc\u591a\u6838\u8655\u7406\u5668\u7684\u958b\u767c\u3002\u591a\u6838\u8655\u7406\u5668\u7684\u5f37\u9805\u5728\u65bc\u5e73\u884c\u8655\u7406\uff0c\u4f46\u5b83\u5fc5\u9808\u9760\u8edf\u9ad4\u7684\u914d\u5408\u624d\u80fd\u6709\u6548\u767c\u63ee\u6548\u80fd\u3002\u5fae\u8edf\u5728 Visual Studio 2010 \u4e2d\u63a8\u51fa\u4e86\u4e0d\u5c11\u6771\u897f\u4f86\u5354\u52a9\u5e2b\u7a0b\u5de5\u5011\u5beb\u4f5c\u591a\u7dd2\u7684\u7a0b\u5f0f\uff0c\u5728 PDC \u4e2d\u81ea\u7136\u8981\u62ff\u51fa\u4f86\u79c0\u4e00\u4e0b\u5566\u3002 \u5fae\u8edf\u5efa\u8b70\u7684 best practice \u975e\u5e38\u503c\u5f97\u501f\u93e1\u3002\u82e5\u8981\u6539\u9032\u7a0b\u5f0f\u7684\u57f7\u884c\u6548\u7387\uff0c\u61c9\u8a72\u4f9d\u5faa\u4ee5\u4e0b\u7684\u6b65\u9a5f\uff1a \u5efa\u7acb\u6548\u80fd\u8abf\u6821\u7684\u76ee\u6a19\uff0c\u627e\u51fa\u91cf\u6e2c\u7684\u65b9\u6cd5\u3002\u5118\u91cf\u4f7f\u7528\u771f\u5be6\u7684\u8cc7\u6599\u548c\u76f4\u5be6\u7684\u74b0\u5883\uff0c\u5e73\u884c\u8655\u7406\u4e26\u4e0d\u662f\u842c\u9748\u4e39\uff0c\u771f\u5be6\u4e16\u754c\u4e2d\u8a31\u591a\u5176\u4ed6\u7684\u56e0\u7d20\u624d\u662f\u6548\u80fd\u7684\u6bba\u624b (\u5982 I\/O\u3001memory latency) \u91cf\u6e2c\u73fe\u6709\u7684\u6548\u80fd\uff0c\u627e\u51fa\u57f7\u884c\u71b1\u9ede \u60f3\u8fa6\u6cd5\u8abf\u6821\u73fe\u6709\u7684\u7a0b\u5f0f \u82e5\u8abf\u6821\u7121\u6548\uff0c\u627e\u770b\u770b\u662f\u5426\u6709\u5e73\u884c\u8655\u7406\u7684\u6a5f\u6703: CPU intensive\uff0c\u6216\u662f\u53ef\u4ee5\u8b93 UI \u53cd\u61c9\u8b8a\u5feb\u589e\u52a0 perceptual performance \u82e5\u53ef\u5e73\u884c\u8655\u7406\uff0c\u5247\u5229\u7528\u7a0b\u5f0f\u6280\u5de7\u53bb\u6700\u4f73\u5316\u71b1\u9ede Visual Studio \u7684\u76ee\u6a19\u662f\u60f3\u8fa6\u6cd5\u8b93\u5beb\u4f5c\u5e73\u884c\u8655\u7406\u7684\u7a0b\u5f0f\u8b8a\u5f97\u5bb9\u6613\u4e00\u4e9b\uff0c\u5b83\u63d0\u4f9b\u8a31\u591a\u57fa\u790e\u8a2d\u65bd\u548c\u51fd\u5f0f\u5eab (\u5982 Concurrent runtime, Parallel Pattern Library, PLINQ \u7b49\u7b49)\uff0c\u4e5f\u63d0\u4f9b\u8a31\u591a profiling \u548c debugging \u7684\u5de5\u5177 (\u6211\u500b\u4eba\u7684\u504f\u898b\u662f\u9019\u4e9b\u5de5\u5177\u548c VTune \u597d\u50cf!)\u3002\u56e0\u6b64\uff0c\u5e2b\u7a0b\u5de5\u5c31\u53ef\u4ee5\u96c6\u4e2d\u7cbe\u529b\u5728\u8a2d\u8a08 synchronization \u4e0a\uff0c\u800c\u4e0d\u5fc5\u5230\u8655\u5c0b\u5c0b\u8993\u8993\u597d\u7528\u7684\u7a0b\u5f0f\u5eab\uff0c\u6216\u662f\u82b1\u8a31\u591a\u8cc7\u6e90\u958b\u767c\u81ea\u5df1\u7684\u7a0b\u5f0f\u5eab\u3002 \u5fae\u8edf\u7684 concurrent runtime \u548c PPL \u5728\u67d0\u7a2e\u7a0b\u5ea6\u4e0a\u548c OpenMP \u6709\u91cd\u758a\u6027\uff0c\u4e0d\u904e\u5fae\u8edf\u4e0a\u5f9e VP [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,2,7],"tags":[],"_links":{"self":[{"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/posts\/179"}],"collection":[{"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/comments?post=179"}],"version-history":[{"count":2,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/posts\/179\/revisions"}],"predecessor-version":[{"id":202,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/posts\/179\/revisions\/202"}],"wp:attachment":[{"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/media?parent=179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/categories?post=179"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cchsu.com\/arthur\/wp-json\/wp\/v2\/tags?post=179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}