{"id":10021028,"date":"2025-10-13T09:26:39","date_gmt":"2025-10-13T01:26:39","guid":{"rendered":"https:\/\/itmax.cn\/?p=10021028"},"modified":"2025-10-13T09:26:39","modified_gmt":"2025-10-13T01:26:39","slug":"%e5%b0%86-gpu-%e7%ba%a7%e6%80%a7%e8%83%bd%e5%b8%a6%e5%88%b0%e4%bc%81%e4%b8%9a%e7%ba%a7-java%ef%bc%9acuda-%e9%9b%86%e6%88%90%e5%ae%9e%e7%94%a8%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10021028","title":{"rendered":"\u5c06 GPU \u7ea7\u6027\u80fd\u5e26\u5230\u4f01\u4e1a\u7ea7 Java\uff1aCUDA \u96c6\u6210\u5b9e\u7528\u6307\u5357"},"content":{"rendered":"<h2>\u5f15\u8a00<\/h2>\n<p>\u5728\u4f01\u4e1a\u8f6f\u4ef6\u4e16\u754c\u4e2d\uff0cJava \u4f9d\u9760\u5176\u53ef\u9760\u6027\u3001\u53ef\u79fb\u690d\u6027\u4e0e\u4e30\u5bcc\u751f\u6001\u6301\u7eed\u5360\u636e\u4e3b\u5bfc\u5730\u4f4d\u3002<\/p>\n<p>\u7136\u800c\uff0c\u4e00\u65e6\u6d89\u53ca\u9ad8\u6027\u80fd\u8ba1\u7b97\uff08HPC\uff09\u6216\u6570\u636e\u5bc6\u96c6\u578b\u4f5c\u4e1a\uff0cJava \u7684\u6258\u7ba1\u8fd0\u884c\u65f6\u4e0e\u5783\u573e\u56de\u6536\u5f00\u9500\u4f1a\u5728\u6ee1\u8db3\u73b0\u4ee3\u5e94\u7528\u7684\u4f4e\u5ef6\u8fdf\u4e0e\u9ad8\u541e\u5410\u9700\u6c42\u4e0a\u5e26\u6765\u6311\u6218\uff0c\u5c24\u5176\u662f\u90a3\u4e9b\u6d89\u53ca\u5b9e\u65f6\u5206\u6790\u3001\u6d77\u91cf\u65e5\u5fd7\u7ba1\u9053\u6216\u6df1\u5ea6\u8ba1\u7b97\u7684\u573a\u666f\u3002<\/p>\n<p>\u4e0e\u6b64\u540c\u65f6\uff0c\u6700\u521d\u4e3a\u56fe\u50cf\u6e32\u67d3\u8bbe\u8ba1\u7684\u56fe\u5f62\u5904\u7406\u5668\uff08GPU\uff09\u5df2\u6210\u4e3a\u5e76\u884c\u8ba1\u7b97\u7684\u5b9e\u7528\u52a0\u901f\u5668\u3002<\/p>\n<p>\u50cf CUDA \u8fd9\u6837\u7684\u6280\u672f\u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u9a7e\u9a6d GPU \u7684\u5168\u90e8\u7b97\u529b\uff0c\u5728\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1\u4e0a\u83b7\u5f97\u663e\u8457\u7684\u52a0\u901f\u6548\u679c\u3002<\/p>\n<p>\u4f46\u95ee\u9898\u5728\u4e8e\uff1aCUDA \u4e3b\u8981\u9762\u5411 C\/C++\uff0c\u800c Java \u5f00\u53d1\u8005\u7531\u4e8e\u96c6\u6210\u590d\u6742\u6027\uff0c\u9c9c\u5c11\u6d89\u8db3\u8fd9\u6761\u8def\u5f84\u3002\u672c\u6587\u65e8\u5728\u5f25\u5408\u8fd9\u4e00\u5dee\u8ddd\u3002<\/p>\n<p>\u6211\u4eec\u5c06\u9010\u6b65\u8bb2\u89e3\uff1a<\/p>\n<ul>\n<li>GPU \u7ea7\u52a0\u901f\u5bf9 Java \u5e94\u7528\u610f\u5473\u7740\u4ec0\u4e48<\/li>\n<li>\u5e76\u53d1\u6a21\u578b\u7684\u5dee\u5f02\u4ee5\u53ca\u4e3a\u4ec0\u4e48 CUDA \u81f3\u5173\u91cd\u8981<\/li>\n<li>\u5c06 CUDA \u4e0e Java \u96c6\u6210\u7684\u5b9e\u7528\u65b9\u6cd5\uff08JCuda\u3001JNI \u7b49\uff09<\/li>\n<li>\u5e26\u6709\u6027\u80fd\u57fa\u51c6\u7684\u4e0a\u624b\u7528\u4f8b<\/li>\n<li>\u786e\u4fdd\u4f01\u4e1a\u7ea7\u53ef\u7528\u6027\u7684\u6700\u4f73\u5b9e\u8df5<\/li>\n<\/ul>\n<p>\u65e0\u8bba\u4f60\u662f\u5173\u6ce8\u6027\u80fd\u7684\u5de5\u7a0b\u5e08\uff0c\u8fd8\u662f\u63a2\u7d22\u4e0b\u4e00\u4ee3\u6269\u5c55\u6280\u672f\u7684 Java \u67b6\u6784\u5e08\uff0c\u8fd9\u4efd\u6307\u5357\u90fd\u9002\u5408\u4f60\u3002<\/p>\n<h2>\u6838\u5fc3\u6982\u5ff5\u7406\u89e3\uff1a\u591a\u7ebf\u7a0b\u3001\u5e76\u53d1\u3001\u5e76\u884c\u4e0e\u591a\u8fdb\u7a0b<\/h2>\n<p>\u5728\u6df1\u5165 GPU \u96c6\u6210\u4e4b\u524d\uff0c\u6e05\u6670\u7406\u89e3 Java \u5f00\u53d1\u8005\u5e38\u7528\u7684\u4e0d\u540c\u6267\u884c\u6a21\u578b\u81f3\u5173\u91cd\u8981\u3002\u8fd9\u4e9b\u6982\u5ff5\u5e38\u88ab\u4ea4\u53c9\u4f7f\u7528\uff0c\u4f46\u5f7c\u6b64\u542b\u4e49\u4e0d\u540c\u3002\u7406\u89e3\u8fb9\u754c\u80fd\u5e2e\u52a9\u4f60\u628a\u63e1 CUDA \u52a0\u901f\u771f\u6b63\u95ea\u5149\u4e4b\u5904\u3002<\/p>\n<h3>\u591a\u7ebf\u7a0b\uff08Multithreading\uff09<\/h3>\n<p>\u591a\u7ebf\u7a0b\u662f\u6307 CPU\uff08\u6216\u5355\u4e2a\u8fdb\u7a0b\uff09\u5728\u540c\u4e00\u5185\u5b58\u7a7a\u95f4\u4e2d\u5e76\u53d1\u6267\u884c\u591a\u4e2a\u7ebf\u7a0b\u7684\u80fd\u529b\u3002\u5728 Java \u4e2d\uff0c\u8fd9\u901a\u5e38\u901a\u8fc7 <a href=\"https:\/\/link.segmentfault.com\/?enc=KQvNPaOx1Bh7kE3rZGeitw%3D%3D.i4wG%2FidR4x5UB53w7yPTanm8y8wAJT%2FfSnCMK4lN9jrlERGieAudrA4sCRPvNaq5lIBOBNJgeb3NgkEcPgpX8JfHYXyGLN7Ct5rA4jc%2FiNl9KM4GCBsSiP%2Bg2UWIaHLz\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Thread<\/a> \u4e0e <a href=\"https:\/\/link.segmentfault.com\/?enc=0LE6MnaA3rhvKjzq1kX7vg%3D%3D.GhMROSZddP%2F2SQhrna2ko0eFnhjq02XD2r1Sg7QNT%2BvgyILNSHArt80efq8N0WtCf31j6qo5AQNLyV%2FlA1zE%2BAxISluVka0F%2B8V3XH1LV14387%2BO0YbpRowmV26%2F%2FjUV\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Runnable<\/a> \u6216\u66f4\u9ad8\u7ea7\u7684 <a href=\"https:\/\/link.segmentfault.com\/?enc=1lPFITE0hJmiXLvqsa7Esw%3D%3D.OB1Jnok%2FYbKILjhRWCyzPX77fcGf7lu%2F0nJawchEAzQzO63LbSiKAZIa6R7q80ZNLobQlY9m%2B%2FYrxlVfPrt08baH5%2FEhE%2BM3gNkyCvI7jH3rR%2B0tjLw%2Fwh2wexsC3OshWNuWs41DznmSWvjZNZY4xw%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">ExecutorService<\/a> \u7b49\u6784\u9020\u5b9e\u73b0\u3002\u591a\u7ebf\u7a0b\u7684\u4f18\u52bf\u5728\u4e8e\u8f7b\u91cf\u4e0e\u5feb\u901f\u542f\u52a8\uff0c\u4f46\u7531\u4e8e\u6240\u6709\u7ebf\u7a0b\u5171\u4eab\u540c\u4e00\u5806\u5185\u5b58\uff0c\u4e5f\u4f1a\u5e26\u6765\u7ade\u6001\u3001\u6b7b\u9501\u4e0e\u7ebf\u7a0b\u4e89\u7528\u7b49\u95ee\u9898\u3002<\/p>\n<h3>\u5e76\u53d1\uff08Concurrency\uff09<\/h3>\n<p>\u5e76\u53d1\u662f\u6307\u4ee5\u80fd\u8ba9\u591a\u4e2a\u4efb\u52a1\u968f\u65f6\u95f4\u63a8\u8fdb\u7684\u65b9\u5f0f\u6765\u7ba1\u7406\u5b83\u4eec\u2014\u2014\u8981\u4e48\u5728\u5355\u6838\u4e0a\u4ea4\u9519\u6267\u884c\uff0c\u8981\u4e48\u8de8\u591a\u6838\u5e76\u884c\u6267\u884c\u3002\u53ef\u4ee5\u628a\u5b83\u89c6\u4f5c\u5bf9\u4efb\u52a1\u6267\u884c\u7684\u7f16\u6392\uff0c\u800c\u975e\u4e00\u6b21\u6027\u540c\u65f6\u505a\u5b8c\u6240\u6709\u4e8b\u3002Java \u901a\u8fc7 <code>java.util.concurrent<\/code> \u7b49\u5305\u5bf9\u5e76\u53d1\u63d0\u4f9b\u4e86\u826f\u597d\u652f\u6301\u3002<\/p>\n<h3>\u5e76\u884c\uff08Parallelism\uff09<\/h3>\n<p>\u5e76\u884c\u5219\u662f\u6307\u771f\u6b63\u540c\u65f6\u6267\u884c\u591a\u4e2a\u4efb\u52a1\uff0c\u76f8\u5bf9\u4e8e\u53ef\u80fd\u5305\u542b\u4ea4\u9519\u7684\u5e76\u53d1\u3002\u771f\u6b63\u7684\u5e76\u884c\u9700\u8981\u786c\u4ef6\u652f\u6301\uff0c\u5982\u591a\u6838 CPU \u6216\u591a\u4e2a\u6267\u884c\u5355\u5143\u3002\u5c3d\u7ba1\u5f88\u591a\u5f00\u53d1\u8005\u628a\u7ebf\u7a0b\u4e0e\u6027\u80fd\u8054\u7cfb\u5728\u4e00\u8d77\uff0c\u5b9e\u9645\u7684\u52a0\u901f\u6548\u679c\u53d6\u51b3\u4e8e\u4efb\u52a1\u5e76\u884c\u5316\u7684\u6709\u6548\u7a0b\u5ea6\u3002Java \u901a\u8fc7 <a href=\"https:\/\/link.segmentfault.com\/?enc=MFXzhNmT2WDG9Gnk9mweCQ%3D%3D.TWVcGjSOj%2BduwUJD2u6Po1Zk9e4F3nVVfgQmXiITVg5P4OuZFVDzS7j8c2Wk2K9e7n%2Brf92gFibSrZMuZq4pI7vaSbuZJEWvqR4Fo1rT3E4%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Fork\/Join<\/a> \u6846\u67b6\u63d0\u4f9b\u652f\u6301\uff0c\u4f46\u57fa\u4e8e CPU \u7684\u5e76\u884c\u6027\u6700\u7ec8\u53d7\u9650\u4e8e\u6838\u5fc3\u6570\u91cf\u4e0e\u4e0a\u4e0b\u6587\u5207\u6362\u5f00\u9500\u3002<\/p>\n<h3>\u591a\u8fdb\u7a0b\uff08Multiprocessing\uff09<\/h3>\n<p>\u591a\u8fdb\u7a0b\u6d89\u53ca\u8fd0\u884c\u591a\u4e2a\u8fdb\u7a0b\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u62e5\u6709\u72ec\u7acb\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u53ef\u80fd\u5728\u4e0d\u540c\u7684 CPU \u6838\u4e0a\u5e76\u884c\u6267\u884c\u3002\u5b83\u6bd4\u591a\u7ebf\u7a0b\u66f4\u9694\u79bb\u3001\u66f4\u5065\u58ee\uff0c\u4f46\u5f00\u9500\u66f4\u5927\u3002\u5728 Java \u4e2d\uff0c\u771f\u6b63\u7684\u591a\u8fdb\u7a0b\u901a\u5e38\u610f\u5473\u7740\u542f\u52a8\u72ec\u7acb\u7684 JVM \u6216\u5c06\u5de5\u4f5c\u5378\u8f7d\u5230\u5fae\u670d\u52a1\u3002<\/p>\n<h3>CUDA \u5728\u54ea\u91cc\u53d1\u6325\u4f5c\u7528\uff1f<\/h3>\n<p>\u4e0a\u8ff0\u6a21\u578b\u90fd\u9ad8\u5ea6\u4f9d\u8d56 CPU \u6838\uff0c\u5176\u6570\u91cf\u6700\u591a\u4e5f\u5c31\u51e0\u5341\u4e2a\u3002\u76f8\u8f83\u4e4b\u4e0b\uff0cGPU \u80fd\u5e76\u884c\u8fd0\u884c\u6210\u5343\u4e0a\u4e07\u7684\u8f7b\u91cf\u7ebf\u7a0b\u3002CUDA \u5141\u8bb8\u4f60\u4f7f\u7528\u8fd9\u79cd\u5927\u89c4\u6a21\u6570\u636e\u5e76\u884c\u7684\u6267\u884c\u6a21\u578b\uff0c\u975e\u5e38\u9002\u5408\u77e9\u9635\u8fd0\u7b97\u3001\u56fe\u50cf\u5904\u7406\u3001\u6d77\u91cf\u65e5\u5fd7\u8f6c\u6362\u6216\u8131\u654f\u3001\u4ee5\u53ca\u5b9e\u65f6\u6570\u636e\u5206\u6790\u7b49\u4efb\u52a1\u3002<\/p>\n<p>\u8fd9\u79cd\u7ec6\u7c92\u5ea6\u7684\u6570\u636e\u7ea7\u5e76\u884c\u51e0\u4e4e\u65e0\u6cd5\u7528\u6807\u51c6\u7684 Java \u591a\u7ebf\u7a0b\u5b9e\u73b0\u2014\u2014\u8fd9\u6b63\u662f CUDA \u5e26\u6765\u771f\u6b63\u4ef7\u503c\u7684\u5730\u65b9\u3002<\/p>\n<h2>CUDA \u4e0e Java \u2014\u2014 \u5168\u666f\u6982\u89c8<\/h2>\n<p>Java \u5f00\u53d1\u8005\u4f20\u7edf\u4e0a\u5de5\u4f5c\u5728\u53d7\u7ba1\u7684 JVM \u4e16\u754c\u91cc\uff0c\u8ddd\u79bb\u9762\u5411\u786c\u4ef6\u7684\u4f4e\u5c42\u4f18\u5316\u76f8\u5f53\u9065\u8fdc\u3002\u53e6\u4e00\u65b9\u9762\uff0cCUDA \u5904\u4e8e\u622a\u7136\u4e0d\u540c\u7684\u4e16\u754c\uff0c\u901a\u8fc7\u7cbe\u7ec6\u7684\u5185\u5b58\u7ba1\u7406\u3001\u542f\u52a8\u6210\u5343\u4e0a\u4e07\u7684\u7ebf\u7a0b\u3001\u5e76\u6700\u5927\u5316 GPU \u5229\u7528\u7387\u6765\u69a8\u53d6\u6027\u80fd\u3002<\/p>\n<p>\u90a3\u4e48\u8fd9\u4e24\u4e2a\u4e16\u754c\u5982\u4f55\u4ea4\u6c47\uff1f<\/p>\n<h3>\u4ec0\u4e48\u662f CUDA\uff1f<\/h3>\n<p>\u7edf\u4e00\u8ba1\u7b97\u8bbe\u5907\u67b6\u6784\uff08CUDA\uff09\u662f NVIDIA \u7684\u5e76\u884c\u8ba1\u7b97\u5e73\u53f0\u4e0e API \u6a21\u578b\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u5728 NVIDIA GPU \u4e0a\u5b9e\u73b0<strong>\u5927\u89c4\u6a21\u5e76\u884c\u6267\u884c<\/strong>\u7684\u8f6f\u4ef6\u3002\u5b83\u901a\u5e38\u901a\u8fc7 C \u6216 C++ \u4f7f\u7528\uff0c\u4f60\u9700\u8981\u7f16\u5199\u5728 GPU \u4e0a\u5e76\u884c\u8fd0\u884c\u7684\u201c\u5185\u6838\uff08kernel\uff09\u201d\u3002<\/p>\n<p>CUDA \u64c5\u957f\uff1a<\/p>\n<ul>\n<li><strong>\u6570\u636e\u5e76\u884c\u5de5\u4f5c\u8d1f\u8f7d<\/strong>\uff08\u5982\u56fe\u50cf\u5904\u7406\u3001\u91d1\u878d\u4eff\u771f\u3001\u65e5\u5fd7\u8f6c\u6362\uff09<\/li>\n<li><strong>\u7ec6\u7c92\u5ea6\u5e76\u884c<\/strong>\uff08\u6210\u5343\u4e0a\u4e07\u7ebf\u7a0b\uff09<\/li>\n<li><strong>\u5bf9\u8ba1\u7b97\u53d7\u9650\u64cd\u4f5c\u7684\u52a0\u901f<\/strong><\/li>\n<\/ul>\n<h3>\u4e3a\u4ec0\u4e48 Java \u4e0d\u662f\u539f\u751f\u5951\u5408\uff1f<\/h3>\n<p>Java \u5e76\u4e0d\u539f\u751f\u652f\u6301 CUDA\uff0c\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>JVM \u65e0\u6cd5\u76f4\u63a5\u8bbf\u95ee GPU \u5185\u5b58\u6216\u6267\u884c\u7ba1\u7ebf<\/li>\n<li>\u5927\u591a\u6570 Java \u5e93\u4ee5 CPU \u4e0e\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u4e3a\u4e2d\u5fc3\u8bbe\u8ba1<\/li>\n<li>Java \u7684\u5185\u5b58\u7ba1\u7406\uff08\u5783\u573e\u56de\u6536\u3001\u5bf9\u8c61\u751f\u547d\u5468\u671f\uff09\u5bf9 GPU \u4e0d\u53cb\u597d<\/li>\n<\/ul>\n<p>\u4f46\u53ea\u8981\u91c7\u7528\u6b63\u786e\u7684\u5de5\u5177\u4e0e\u67b6\u6784\uff0c<strong>\u4f60\u5b8c\u5168\u53ef\u4ee5\u6865\u63a5 Java \u4e0e CUDA<\/strong>\uff0c\u5728\u5173\u952e\u4f4d\u7f6e\u91ca\u653e GPU \u52a0\u901f\u3002<\/p>\n<h3>\u53ef\u7528\u7684\u96c6\u6210\u9009\u9879<\/h3>\n<p>\u5c06 GPU \u52a0\u901f\u5f15\u5165 Java \u7684\u65b9\u6cd5\u6709\u591a\u79cd\uff0c\u5404\u6709\u53d6\u820d\u3002<\/p>\n<p><a href=\"https:\/\/link.segmentfault.com\/?enc=8qnFqZcvMPapPm%2FPT%2FolIQ%3D%3D.deiNNHRQlJfWoxfuBs7ZV%2FXL7udafaazmseWfsmeGT2FT57Eu9BFv4WLCu%2FEQ12X\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">JCuda<\/a> \u662f CUDA \u7684\u76f4\u63a5 Java \u7ed1\u5b9a\uff0c\u540c\u65f6\u66b4\u9732\u5e95\u5c42 API \u4e0e\u8bf8\u5982 <a href=\"https:\/\/link.segmentfault.com\/?enc=ghrIaFYzmwDVACiy%2F%2BNOlQ%3D%3D.9s%2FYLTQC5Pgf08eWI0%2FvUAT%2FQl2YJDc%2BV7n9As93QSrGRt4V%2FGDUi%2FP3sWeufJq4\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Pointer<\/a>\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=r9nxHr4eLzQJGbtbaDp5tg%3D%3D.WR5MluHskgzf9UsDepsvItqOE8RpeeQrd2qT2VvUfJFyUbAZgeKF%2FVDug6ZinRqEapXKh3Hucaj87vafB0urrQ%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">CUfunction<\/a> \u7b49\u9ad8\u5c42\u62bd\u8c61\u3002\u5b83\u975e\u5e38\u9002\u5408\u539f\u578b\u6216\u8bd5\u9a8c\uff0c\u4f46\u901a\u5e38\u9700\u8981\u624b\u52a8\u5185\u5b58\u7ba1\u7406\uff0c\u53ef\u80fd\u9650\u5236\u5176\u5728\u751f\u4ea7\u4e2d\u7684\u4f7f\u7528\u3002<\/p>\n<p>Java \u672c\u5730\u63a5\u53e3\uff08<a href=\"https:\/\/link.segmentfault.com\/?enc=h4RhhtFL82t45F6eC9zBxw%3D%3D.8Pht2ktZo74GAHubI7dN2yyVOdONaYxEonQaymmOexcJidXIucAmfow1c6rqLs20viQpOqDwR%2FQVttVM4MfEp2hqc253SYyStYpPbG3bOMQ%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">JNI<\/a>\uff09\u901a\u8fc7\u5141\u8bb8\u4f60\u7528 C++ \u7f16\u5199 CUDA \u5185\u6838\u5e76\u66b4\u9732\u7ed9 Java\uff0c\u63d0\u4f9b\u66f4\u5f3a\u7684\u63a7\u5236\u4e0e\u901a\u5e38\u66f4\u4f18\u7684\u6027\u80fd\u3002\u5c3d\u7ba1\u6837\u677f\u4ee3\u7801\u66f4\u591a\uff0c\u4f46\u5728\u9700\u8981\u7a33\u5b9a\u6027\u4e0e\u7ec6\u7c92\u5ea6\u8d44\u6e90\u63a7\u5236\u7684\u4f01\u4e1a\u7ea7\u96c6\u6210\u4e2d\uff0c\u6b64\u6cd5\u66f4\u53d7\u9752\u7750\u3002<\/p>\n<p>Java Native Access\uff08<a href=\"https:\/\/link.segmentfault.com\/?enc=O5J0%2FJWoqJZEVqyyKjws7w%3D%3D.VXeh8Y818qmYtwfFEwilUgWI%2FaoDEppKmGePM30hVUAeCS3CD2UZcbhnNe4QKp6HfCaZXv3CSftt0nubNcqNOA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">JNA<\/a>\uff09\u662f\u8c03\u7528\u672c\u5730\u4ee3\u7801\u65f6\u8f83\u4e3a\u7b80\u5355\u3001\u5570\u55e6\u66f4\u5c11\u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u4f46\u5bf9 CUDA \u7c7b\u5de5\u4f5c\u8d1f\u8f7d\u800c\u8a00\uff0c\u5b83\u5e76\u4e0d\u603b\u80fd\u63d0\u4f9b\u6240\u9700\u7684\u6027\u80fd\u6216\u7075\u6d3b\u6027\u3002<\/p>\n<p>\u6b64\u5916\u8fd8\u6709\u4e00\u4e9b\u65b0\u5174\u5de5\u5177\uff0c\u5982 <a href=\"https:\/\/link.segmentfault.com\/?enc=CcK9%2BLOJoaexd4FprsAmlg%3D%3D.f7JGJaWZ85z3VDDSwlq7m9T89HsiqIUl%2FUIRvM7zKgc%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">TornadoVM<\/a>\u3001<a href=\"https:\/\/link.segmentfault.com\/?enc=Bj9UjmBjq6pFzm5okECRFg%3D%3D.Ub%2BWczXojS2auVK0LGFwbv8Q2ibDQ6vs%2BZiZqj2u%2FVuLJIVgU5p4T2TC7QTRzCw%2F\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Rootbeer<\/a> \u4e0e <a href=\"https:\/\/link.segmentfault.com\/?enc=LUNgCohQlQjFdZvsJ%2FiWOA%3D%3D.20XBlXMN6GPQWF3qWeqOaXKgm26bMM2VC5X6duxpRabtIKplWL2sgCz9B4UtUsiV\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Aparapi<\/a>\uff0c\u5b83\u4eec\u901a\u8fc7\u5b57\u8282\u7801\u8f6c\u6362\u6216 DSL \u4ece Java \u542f\u7528 GPU \u52a0\u901f\u3002\u8fd9\u4e9b\u5de5\u5177\u9002\u5408\u7814\u7a76\u4e0e\u8bd5\u9a8c\uff0c\u4f46\u672a\u5fc5\u9002\u5408\u89c4\u6a21\u5316\u751f\u4ea7\u3002<\/p>\n<h2>\u5b9e\u7528\u96c6\u6210\u6a21\u5f0f\u2014\u2014\u4ece Java \u8c03\u7528 CUDA<\/h2>\n<p>\u5728\u6211\u4eec\u53ef\u89c6\u5316\u4e86\u67b6\u6784\u4e4b\u540e\uff0c\u6765\u62c6\u89e3\u5404\u7ec4\u4ef6\u5728\u5b9e\u8df5\u4e2d\u7684\u534f\u540c\u5de5\u4f5c\u65b9\u5f0f\u3002<\/p>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3 Java \u4e0e CUDA \u5728\u8fd0\u884c\u65f6\u7684\u4e92\u52a8\uff0c\u56fe 1 \u6982\u8ff0\u4e86\u5173\u952e\u7ec4\u4ef6\u4e0e\u6570\u636e\u6d41\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000047316926\" alt=\"\u901a\u8fc7 JNI \u7684 Java\u2013CUDA \u96c6\u6210\u67b6\u6784\" title=\"\u901a\u8fc7 JNI \u7684 Java\u2013CUDA \u96c6\u6210\u67b6\u6784\"><\/p>\n<p><strong>\u56fe 1\uff1a\u901a\u8fc7 JNI \u7684 Java\u2013CUDA \u96c6\u6210\u67b6\u6784<\/strong><\/p>\n<h3>Java \u5e94\u7528\u5c42<\/h3>\n<p>\u8fd9\u662f\u4e00\u5957\u6807\u51c6\u7684 Java \u670d\u52a1\uff0c\u53ef\u80fd\u662f\u65e5\u5fd7\u6846\u67b6\u3001\u5206\u6790\u7ba1\u9053\u6216\u4efb\u4f55\u9ad8\u541e\u5410\u4f01\u4e1a\u6a21\u5757\u3002\u4e0e\u5176\u4ec5\u4f9d\u8d56\u7ebf\u7a0b\u6c60\u6216 Fork\/Join \u5e76\u53d1\u6846\u67b6\uff0c\u8ba1\u7b97\u5bc6\u96c6\u578b\u8d1f\u8f7d\u901a\u8fc7\u672c\u5730\u8c03\u7528\u88ab\u5378\u8f7d\u5230 GPU\u3002<\/p>\n<p>\u5728\u8fd9\u4e00\u5c42\uff0cJava \u8d1f\u8d23\u51c6\u5907\u8f93\u5165\u6570\u636e\u3001\u89e6\u53d1\u5230\u672c\u5730\u540e\u7aef\u7684 JNI \u8c03\u7528\uff0c\u5e76\u5c06\u7ed3\u679c\u96c6\u6210\u56de\u4e3b\u5e94\u7528\u6d41\u7a0b\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u628a\u9762\u5411 SSH \u7684\u52a0\u5bc6\u6216\u5b89\u5168\u5bc6\u94a5\u54c8\u5e0c\u5728\u6bcf\u79d2\u6570\u5343\u4f1a\u8bdd\u7684\u573a\u666f\u4e0b\u5378\u8f7d\u7ed9 GPU\uff0c\u4ece\u800c\u91ca\u653e CPU \u4ee5\u5904\u7406 I\/O \u4e0e\u7f16\u6392\u5de5\u4f5c\u3002<\/p>\n<h3>JNI \u6865<\/h3>\n<p>JNI \u662f\u8fde\u63a5 Java \u4e0e\u672c\u5730 C++ \u4ee3\u7801\uff08\u5305\u542b CUDA \u903b\u8f91\uff09\u7684\u6865\u6881\u3002\u5b83\u8d1f\u8d23\u58f0\u660e\u672c\u5730\u65b9\u6cd5\u3001\u52a0\u8f7d\u5171\u4eab\u672c\u5730\u5e93\uff08.so\u3001.dll\uff09\u3001\u5e76\u5728 Java \u5806\u4e0e\u672c\u5730\u7f13\u51b2\u533a\u4e4b\u95f4\u4f20\u9012\u5185\u5b58\u3002\u6700\u5e38\u89c1\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u539f\u59cb\u7c7b\u578b\u6570\u7ec4\u8fdb\u884c\u9ad8\u6548\u6570\u636e\u4f20\u8f93\u3002<\/p>\n<p>\u5fc5\u987b\u8c28\u614e\u5904\u7406\u5185\u5b58\u7ba1\u7406\u4e0e\u7c7b\u578b\u8f6c\u6362\uff08\u5982 <code>jintArray<\/code> \u5230 <code>int*<\/code>\uff09\u3002\u6b64\u5904\u7684\u9519\u8bef\u4f1a\u5bfc\u81f4\u6bb5\u9519\u8bef\u6216\u5185\u5b58\u6cc4\u6f0f\uff0c\u56e0\u6b64\u9632\u5fa1\u5f0f\u7f16\u7a0b\u4e0e\u8d44\u6e90\u6e05\u7406\u81f3\u5173\u91cd\u8981\u3002\u8be5\u5c42\u901a\u5e38\u5305\u542b\u65e5\u5fd7\u4e0e\u6821\u9a8c\u903b\u8f91\uff0c\u4ee5\u9632\u4e0d\u5b89\u5168\u64cd\u4f5c\u4f20\u64ad\u81f3 GPU \u5c42\u3002<\/p>\n<h3>CUDA \u5185\u6838\uff08C\/C++)<\/h3>\n<p>\u5e76\u884c\u9b54\u6cd5\u53d1\u751f\u5728\u8fd9\u91cc\u3002CUDA \u5185\u6838\u662f\u8f7b\u91cf\u7684 C \u98ce\u683c\u51fd\u6570\uff0c\u65e8\u5728\u540c\u65f6\u5728\u6210\u5343\u4e0a\u4e07\u7684 GPU \u7ebf\u7a0b\u4e2d\u8fd0\u884c\u3002\u5185\u6838\u7528 <code>.cu<\/code> \u6587\u4ef6\u7f16\u5199\uff0c\u4f7f\u7528 CUDA C API\uff0c\u5e76\u901a\u8fc7\u719f\u6089\u7684 <code>&lt;&lt;&lt;blocks, threads&gt;&gt;&gt;<\/code> \u8bed\u6cd5\u542f\u52a8\u3002<\/p>\n<p>\u6bcf\u4e2a\u5185\u6838\u5728\u6765\u81ea JNI \u5c42\u7684\u7f13\u51b2\u533a\u4e0a\u6267\u884c\u5927\u89c4\u6a21\u5e76\u884c\u64cd\u4f5c\uff0c\u65e0\u8bba\u662f\u5b57\u7b26\u4e32\u52a0\u5bc6\u3001\u5b57\u8282\u6570\u7ec4\u54c8\u5e0c\u8fd8\u662f\u77e9\u9635\u53d8\u6362\u3002\u5171\u4eab\u4e0e\u5168\u5c40\u5185\u5b58\u88ab\u7528\u4e8e\u63d0\u901f\uff0c\u5e76\u5c3d\u91cf\u5c31\u5730\u5904\u7406\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u4f20\u8f93\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c06 SHA-256 \u6216 AES \u52a0\u5bc6\u903b\u8f91\u5e94\u7528\u4e8e\u6574\u6279\u4f1a\u8bdd\u4ee4\u724c\u6216\u6587\u4ef6\u8d1f\u8f7d\u3002<\/p>\n<h3>GPU \u6267\u884c<\/h3>\n<p>\u5185\u6838\u542f\u52a8\u540e\uff0cCUDA \u8d1f\u8d23\u7ebf\u7a0b\u8c03\u5ea6\u3001\u9690\u85cf\u5185\u5b58\u5ef6\u8fdf\u4e0e\u57fa\u672c\u540c\u6b65\u3002\u7136\u800c\uff0c\u6027\u80fd\u8c03\u4f18\u4ecd\u9700\u624b\u52a8\u57fa\u51c6\u6d4b\u8bd5\u4e0e\u8c28\u614e\u7684\u5185\u6838\u914d\u7f6e\u3002<\/p>\n<p>\u96c6\u6210 CUDA \u7684 Java \u5f00\u53d1\u8005\u5fc5\u987b\u5173\u6ce8\u5757\u4e0e\u7ebf\u7a0b\u7684\u914d\u7f6e\u3001\u5c3d\u91cf\u51cf\u5c11\u5185\u5b58\u62f7\u8d1d\u74f6\u9888\uff0c\u5e76\u4f7f\u7528\u8bf8\u5982 <code>cudaGetLastError()<\/code> \u6216 <code>cudaPeekAtLastError()<\/code> \u7684 CUDA API \u505a\u597d\u9519\u8bef\u5904\u7406\u3002\u8fd9\u4e00\u5c42\u5f00\u53d1\u9636\u6bb5\u901a\u5e38\u4e0d\u53ef\u89c1\uff0c\u4f46\u5728\u8fd0\u884c\u65f6\u6027\u80fd\u4e0e\u6545\u969c\u9694\u79bb\u4e2d\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u8fd4\u56de\u6d41\u7a0b<\/strong><\/p>\n<p>\u5904\u7406\u5b8c\u6210\u540e\uff0c\u7ed3\u679c\uff08\u5982\u52a0\u5bc6\u952e\u3001\u8ba1\u7b97\u6570\u7ec4\uff09\u8fd4\u56de\u5230 JNI \u5c42\uff0c\u518d\u8f6c\u53d1\u7ed9 Java \u5e94\u7528\u8fdb\u884c\u540e\u7eed\u5904\u7406\u2014\u2014\u5165\u5e93\u3001\u4e0b\u6e38\u4f20\u9012\u6216\u5728 UI \u5c55\u793a\u3002<\/p>\n<p><strong>\u96c6\u6210\u6b65\u9aa4\u6458\u8981<\/strong><\/p>\n<ul>\n<li>\u7f16\u5199\u7b26\u5408\u4e1a\u52a1\u903b\u8f91\u7684 CUDA \u5185\u6838<\/li>\n<li>\u521b\u5efa\u66b4\u9732\u5185\u6838\u5e76\u652f\u6301 JNI \u7ed1\u5b9a\u7684 C\/C++ \u5305\u88c5\u5668<\/li>\n<li>\u4f7f\u7528 <code>nvcc<\/code> \u7f16\u8bd1\u5e76\u751f\u6210 <code>.so<\/code>\uff08Linux\uff09\u6216 <code>.dll<\/code>\uff08Windows\uff09<\/li>\n<li>\u7f16\u5199\u5305\u542b\u672c\u5730\u65b9\u6cd5\u5e76\u901a\u8fc7 <code>System.loadLibrary()<\/code> \u52a0\u8f7d\u5e93\u7684 Java \u7c7b<\/li>\n<li>\u5728 Java \u4e0e\u672c\u5730\u4ee3\u7801\u4e4b\u95f4\u5e72\u51c0\u5730\u5904\u7406\u8f93\u5165\/\u8f93\u51fa\u4e0e\u5f02\u5e38<\/li>\n<\/ul>\n<h2>\u4f01\u4e1a\u7528\u4f8b\u2014\u2014\u7528 Java \u4e0e CUDA \u52a0\u901f\u6279\u91cf\u6570\u636e\u52a0\u5bc6<\/h2>\n<p>\u4e3a\u5c55\u793a\u5728 Java \u73af\u5883\u4e2d\u542f\u7528 GPU \u7ea7\u52a0\u901f\u7684\u5f71\u54cd\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u5b9e\u9645\u7684\u4f01\u4e1a\u573a\u666f\uff1a<strong>\u89c4\u6a21\u5316\u7684\u6279\u91cf\u6570\u636e\u52a0\u5bc6<\/strong>\u3002\u8bb8\u591a\u540e\u7aef\u7cfb\u7edf\u5e38\u6001\u5316\u5904\u7406\u654f\u611f\u4fe1\u606f\uff0c\u5982\u7528\u6237\u51ed\u636e\u3001\u4f1a\u8bdd\u4ee4\u724c\u3001API \u5bc6\u94a5\u4e0e\u6587\u4ef6\u5185\u5bb9\uff0c\u8fd9\u4e9b\u901a\u5e38\u9700\u8981\u9ad8\u541e\u5410\u5730\u8fdb\u884c\u54c8\u5e0c\u6216\u52a0\u5bc6\u3002<\/p>\n<p>\u4f20\u7edf\u4e0a\uff0cJava \u7cfb\u7edf\u4f9d\u8d56 <a href=\"https:\/\/link.segmentfault.com\/?enc=C33wpoSFn2IpHYgao7GvXA%3D%3D.cyLw7XsU3JXkTnWG6czCXqe%2BtwUAP0c09ysVb23Z50tzNzga7sCx3zEpyiPyMDGEyV2fBbjlowBihstTh%2F5nvj4J73bvaT86Jy8FD4Dh4sLA5TKwJzRaDZHwoiwndnNU\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">javax.crypto<\/a> \u6216 <a href=\"https:\/\/link.segmentfault.com\/?enc=XwzybLmItrfNQMgBWkTFZQ%3D%3D.VTNLCqgHqjOpIHlBr1znJaIt4B9UGyMCWSYS9eApPXQ%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Bouncy Castle<\/a> \u7b49\u57fa\u4e8e CPU \u7684\u5e93\u6765\u5b8c\u6210\u8fd9\u4e9b\u64cd\u4f5c\u3002\u5b83\u4eec\u867d\u7136\u6709\u6548\uff0c\u4f46\u5728\u6bcf\u5c0f\u65f6\u9700\u8981\u5904\u7406\u6570\u767e\u4e07\u6761\u8bb0\u5f55\u6216\u5fc5\u987b\u4fdd\u6301\u4f4e\u5ef6\u8fdf\u54cd\u5e94\u7684\u73af\u5883\u4e2d\uff0c\u53ef\u80fd\u96be\u4ee5\u8ddf\u4e0a\u3002\u8fd9\u6b63\u662f CUDA \u5e76\u884c\u52a0\u901f\u6210\u4e3a\u5438\u5f15\u4eba\u7684\u66ff\u4ee3\u65b9\u6848\u7684\u539f\u56e0\u3002<\/p>\n<p><strong>GPU \u5bf9\u8fd9\u7c7b\u5de5\u4f5c\u8d1f\u8f7d\u5c24\u4e3a\u9002\u5408<\/strong>\uff0c\u56e0\u4e3a\u52a0\u5bc6\u6216\u54c8\u5e0c\u903b\u8f91\uff08\u5982 SHA-256\uff09\u662f\u65e0\u72b6\u6001\u3001\u7edf\u4e00\u4e14\u9ad8\u5ea6\u53ef\u5e76\u884c\u5316\u7684\u3002\u65e0\u9700\u7ebf\u7a0b\u95f4\u901a\u4fe1\uff0c\u5185\u6838\u64cd\u4f5c\u53ef\u4ee5\u9ad8\u6548\u6279\u5904\u7406\uff0c\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u76f8\u8f83\u5355\u7ebf\u7a0b Java \u5b9e\u73b0\u53ef\u5e26\u6765\u9ad8\u8fbe 50 \u500d\u7684\u5ef6\u8fdf\u6539\u5584\u3002<\/p>\n<p>\u4e3a\u9a8c\u8bc1\u8fd9\u4e00\u65b9\u6cd5\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u539f\u578b\u7ba1\u9053\uff1aJava \u5c42\u51c6\u5907\u7528\u6237\u6570\u636e\u6216\u4f1a\u8bdd\u4ee4\u724c\u6570\u7ec4\uff0c\u901a\u8fc7 JNI \u4f20\u7ed9\u672c\u5730 C++ \u5c42\uff1b\u968f\u540e CUDA \u5185\u6838\u5bf9\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u6267\u884c SHA-256 \u54c8\u5e0c\uff1b\u5b8c\u6210\u540e\u7ed3\u679c\u4ee5\u5b57\u8282\u6570\u7ec4\u5f62\u5f0f\u8fd4\u56de\u7ed9 Java\uff0c\u51c6\u5907\u5b89\u5168\u4f20\u8f93\u6216\u5b58\u50a8\u3002<\/p>\n<h3>\u6027\u80fd\u5bf9\u6bd4<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u541e\u5410\uff08\u6761\u76ee\/\u79d2\uff09<\/th>\n<th>\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Java + Bouncy Castle<\/td>\n<td>\/~20,000<\/td>\n<td>\u5355\u7ebf\u7a0b\u57fa\u7ebf<\/td>\n<\/tr>\n<tr>\n<td>Java + ExecutorService<\/td>\n<td>\/~80,000<\/td>\n<td>8 \u6838 CPU \u5e76\u884c<\/td>\n<\/tr>\n<tr>\n<td>Java + CUDA\uff08\u7ecf JNI\uff09<\/td>\n<td>\/~1,500,000<\/td>\n<td>3,000 \u4e2a CUDA \u7ebf\u7a0b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u26a0\ufe0f \u514d\u8d23\u58f0\u660e\uff1a\u4ee5\u4e0a\u4e3a\u793a\u610f\u6027\u7684\u5408\u6210\u57fa\u51c6\u6570\u636e\u3002\u771f\u5b9e\u7ed3\u679c\u53d6\u51b3\u4e8e\u786c\u4ef6\u4e0e\u8c03\u4f18\u3002<\/p>\n<h3>\u73b0\u5b9e\u6536\u76ca<\/h3>\n<p>\u5c06\u52a0\u5bc6\u5de5\u4f5c\u8d1f\u8f7d\u5378\u8f7d\u7ed9 GPU \u53ef\u91ca\u653e CPU \u8d44\u6e90\u4ee5\u5904\u7406\u5e94\u7528\u903b\u8f91\u4e0e I\/O\uff0c\u975e\u5e38\u9002\u5408\u9ad8\u541e\u5410\u5fae\u670d\u52a1\u3002\u6b64\u6a21\u5f0f\u5728\u5b89\u5168 API \u7f51\u5173\u3001\u6587\u6863\u5904\u7406\u7ba1\u9053\u4ee5\u53ca\u4efb\u4f55\u9700\u8981\u89c4\u6a21\u5316\u8ba4\u8bc1\u6216\u54c8\u5e0c\u6570\u636e\u7684\u7cfb\u7edf\u4e2d\u5c24\u4e3a\u6709\u6548\u3002\u6279\u5904\u7406\u4e5f\u53d8\u5f97\u9ad8\u6548\u2014\u2014\u6bcf\u6b21\u5185\u6838\u542f\u52a8\u53ef\u8f7b\u677e\u54c8\u5e0c\u6570\u4ee5\u4e07\u8ba1\u7684\u8bb0\u5f55\uff0c\u5b9e\u73b0\u771f\u6b63\u7684\u5e76\u884c\u5b89\u5168\u64cd\u4f5c\u3002<\/p>\n<h2>\u6700\u4f73\u5b9e\u8df5\u4e0e\u6ce8\u610f\u4e8b\u9879\u2014\u2014\u8ba9 Java + CUDA \u6ee1\u8db3\u751f\u4ea7\u8981\u6c42<\/h2>\n<p>\u5c06 Java \u4e0e CUDA \u96c6\u6210\u5f00\u542f\u4e86\u65b0\u7684\u6027\u80fd\u5c42\u7ea7\uff0c\u4f46\u5f3a\u5927\u5e26\u6765\u590d\u6742\u6027\u3002\u5982\u679c\u4f60\u6253\u7b97\u5728\u8fd9\u5957\u6808\u4e0a\u6784\u5efa\u4f01\u4e1a\u7ea7\u7cfb\u7edf\uff0c\u8fd9\u91cc\u6709\u5173\u952e\u8003\u91cf\u4ee5\u4fdd\u6301\u65b9\u6848\u7684\u53ef\u9760\u3001\u53ef\u7ef4\u62a4\u4e0e\u5b89\u5168\u3002<\/p>\n<h3>\u5185\u5b58\u7ba1\u7406<\/h3>\n<p>\u4e0d\u540c\u4e8e Java \u7684\u5783\u573e\u56de\u6536\u8fd0\u884c\u65f6\uff0cCUDA \u9700\u8981\u663e\u5f0f\u5185\u5b58\u7ba1\u7406\u3002\u5fd8\u8bb0\u91ca\u653e GPU \u5185\u5b58\u4e0d\u4ec5\u4f1a\u6cc4\u6f0f\uff0c\u8fd8\u53ef\u80fd\u5728\u8d1f\u8f7d\u4e0b\u8fc5\u901f\u8017\u5c3d\u663e\u5b58\u5e76\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u3002<\/p>\n<p>\u4f7f\u7528 <code>cudaMalloc()<\/code> \u4e0e <code>cudaFree()<\/code>\uff08\u5747\u7531 <code>CUDA Runtime API (cuda_runtime.h)<\/code> \u5b9a\u4e49\uff09\u663e\u5f0f\u7ba1\u7406 GPU \u5185\u5b58\u3002\u786e\u4fdd\u6bcf\u4e2a JNI \u5165\u53e3\u70b9\u90fd\u6709\u76f8\u5e94\u6e05\u7406\u6b65\u9aa4\u3002<\/p>\n<p>\u5728\u5178\u578b\u96c6\u6210\u4e2d\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u5305\u88c5\u5728\u672c\u5730 C++ \u5c42\u5e76\u901a\u8fc7 JNI \u66b4\u9732\u7ed9 Java\u3002\u4f8b\u5982\uff0c\u4f60\u7684 Java \u7c7b\u53ef\u80fd\u5b9a\u4e49\u7c7b\u4f3c <code>public native long cudaMalloc(int size)<\/code> \u7684\u672c\u5730\u65b9\u6cd5\uff0c\u5b83\u5728 C++ \u5185\u90e8\u8c03\u7528\u771f\u5b9e\u7684 <code>cudaMalloc()<\/code> \u5e76\u628a\u8bbe\u5907\u6307\u9488\u4ee5 long \u8fd4\u56de\u7ed9 Java\u3002<\/p>\n<p>\u6216\u8005\uff0c\u5f00\u53d1\u8005\u4e5f\u53ef\u4f7f\u7528 <code>JCuda<\/code> \u6216 <code>JavaCPP CUDA<\/code> \u9884\u8bbe\u7b49\u5e93\u5728\u4e0d\u624b\u5199 JNI \u7684\u60c5\u51b5\u4e0b\u8bbf\u95ee CUDA \u529f\u80fd\u3002\u8fd9\u4e9b\u5e93\u63d0\u4f9b\u4e0e CUDA C API \u76f4\u63a5\u6620\u5c04\u7684 Java \u5305\u88c5\u5668\u4e0e\u7c7b\u5b9a\u4e49\uff0c\u7b80\u5316 JVM \u5185\u7684\u5185\u5b58\u7ba1\u7406\u4e0e\u5185\u6838\u542f\u52a8\u3002<\/p>\n<h3>Java \u4e0e\u672c\u5730\u4ee3\u7801\u7684\u6570\u636e\u7f16\u7ec4<\/h3>\n<p>\u901a\u8fc7 JNI \u5728 Java \u4e0e C\/C++ \u4e4b\u95f4\u4f20\u9012\u6570\u636e\u4e0d\u53ea\u662f\u8bed\u6cd5\u95ee\u9898\uff1b\u82e5\u5904\u7406\u4e0d\u5f53\u4f1a\u6210\u4e3a\u4e25\u91cd\u7684\u6027\u80fd\u74f6\u9888\u3002\u575a\u6301\u4f7f\u7528\u539f\u59cb\u7c7b\u578b\u6570\u7ec4\uff08<code>int[]<\/code>\u3001<code>float[]<\/code> \u7b49\uff09\u800c\u975e\u590d\u6742\u5bf9\u8c61\uff0c\u5e76\u4f7f\u7528 <code>GetPrimitiveArrayCritical()<\/code> \u4ee5\u83b7\u5f97\u4f4e\u5ef6\u8fdf\u3001\u5bf9 GC \u53cb\u597d\u7684\u672c\u5730\u5185\u5b58\u8bbf\u95ee\u3002\u6ce8\u610f\u5b57\u7b26\u4e32\u7f16\u7801\u5dee\u5f02\uff1aJava \u5185\u90e8\u4f7f\u7528\u4fee\u8ba2\u7248 UTF-8\uff0c\u82e5\u5904\u7406\u4e0d\u5f53\u4f1a\u4e0e\u6807\u51c6 C \u98ce\u683c\u5b57\u7b26\u4e32\u4e0d\u517c\u5bb9\u3002\u4e3a\u964d\u4f4e\u5f00\u9500\uff0c\u5c3d\u91cf\u4e00\u6b21\u6027\u5206\u914d\u672c\u5730\u7f13\u51b2\u5e76\u8de8\u591a\u6b21\u8c03\u7528\u590d\u7528\u3002<\/p>\n<h3>\u7ebf\u7a0b\u5b89\u5168<\/h3>\n<p>\u591a\u6570 Java \u670d\u52a1\u672c\u8d28\u4e0a\u662f\u591a\u7ebf\u7a0b\u7684\uff0c\u8fd9\u5728\u5411\u4e0b\u8c03\u7528\u672c\u5730\u4ee3\u7801\u65f6\u4f1a\u5f15\u5165\u98ce\u9669\u3002\u9664\u975e\u660e\u786e\u540c\u6b65\uff0c\u5426\u5219\u4e0d\u5e94\u5728\u8de8\u7ebf\u7a0b\u5171\u4eab GPU \u6d41\u4e0e JNI \u53e5\u67c4\u3002\u76f8\u53cd\uff0c\u8bbe\u8ba1\u4f60\u7684 JNI \u63a5\u53e3\u4e3a\u65e0\u72b6\u6001\uff0c\u5e76\u5728\u5e76\u53d1\u542f\u52a8 GPU \u5185\u6838\u65f6\u4f9d\u8d56\u7ebf\u7a0b\u672c\u5730\u7f13\u51b2\u3002<code>synchronized<\/code> \u53ef\u52a9\u4e00\u81c2\u4e4b\u529b\uff0c\u4f46\u5e94\u8c28\u614e\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5f15\u5165\u7ade\u4e89\u3002\u6e05\u6670\u7684\u72b6\u6001\u5206\u79bb\u4e0e\u6bcf\u7ebf\u7a0b\u8d44\u6e90\u5e38\u5e38\u80fd\u5e26\u6765\u66f4\u5b89\u5168\u3001\u66f4\u53ef\u6269\u5c55\u7684 GPU \u96c6\u6210\u3002<\/p>\n<h3>\u539f\u751f\u4ee3\u7801\u7684\u6d4b\u8bd5\u4e0e\u8c03\u8bd5<\/h3>\n<p>\u4e0d\u540c\u4e8e Java \u5f02\u5e38\uff0c\u539f\u751f C++ \u6216 CUDA \u4ee3\u7801\u7684\u5d29\u6e83\u4f1a\u7ec8\u6b62\u6574\u4e2a JVM\u3002\u8fd9\u8ba9\u6d4b\u8bd5\u4e0e\u8c03\u8bd5\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u4e14\u66f4\u5177\u6311\u6218\u3002\u6301\u7eed\u4f7f\u7528 CUDA \u7684\u9519\u8bef\u68c0\u67e5 API\uff0c\u5982 <code>cudaGetLastError()<\/code> \u4e0e <code>cudaPeekAtLastError()<\/code>\uff0c\u5c3d\u65e9\u6355\u83b7\u9759\u9ed8\u5931\u8d25\u3002\u65e9\u671f\u5f00\u53d1\u9636\u6bb5\u5c06\u6240\u6709\u672c\u5730\u6b65\u9aa4\u8bb0\u5f55\u5230\u5355\u72ec\u6587\u4ef6\u4ee5\u9694\u79bb\u95ee\u9898\uff0c\u907f\u514d\u6df7\u5165\u5e94\u7528\u65e5\u5fd7\u3002\u4fdd\u6301 CUDA \u5185\u6838\u7684\u6a21\u5757\u5316\uff0c\u5e76\u5728 Java \u8c03\u7528\u4e4b\u524d\u7528 C++ \u7f16\u5199\u539f\u751f\u5355\u5143\u6d4b\u8bd5\uff0c\u53ef\u5728\u66f4\u5e7f\u7cfb\u7edf\u53d7\u5f71\u54cd\u524d\u6355\u6349\u5e95\u5c42\u7f3a\u9677\u3002<\/p>\n<h3>\u5b89\u5168\u4e0e\u9694\u79bb<\/h3>\n<p>\u6d89\u53ca\u52a0\u5bc6\u3001\u4ee4\u724c\u751f\u6210\u6216\u5bc6\u94a5\u6d3e\u751f\u7b49\u654f\u611f\u5de5\u4f5c\u8d1f\u8f7d\u65f6\uff0c\u5fc5\u987b\u5c06\u672c\u5730\u4ee3\u7801\u89c6\u4e3a\u4f60\u7684\u5a01\u80c1\u9762\u7684\u4e00\u90e8\u5206\u3002\u59cb\u7ec8\u5728 Java \u4fa7\u9a8c\u8bc1\u8f93\u5165\u540e\u518d\u8c03\u7528 JNI\u3002\u907f\u514d\u5728 CUDA \u5185\u6838\u4e2d\u52a8\u6001\u5185\u5b58\u5206\u914d\uff0c\u4ee5\u51cf\u5c11\u4e0d\u53ef\u9884\u6d4b\u884c\u4e3a\u3002\u5c3d\u53ef\u80fd\u51cf\u5c11\u672c\u5730\u6a21\u5757\u4e2d\u7684\u4f9d\u8d56\uff0c\u4ee5\u7f29\u5c0f\u653b\u51fb\u9762\u3002<\/p>\n<p>\u63d0\u793a\uff1a\u4e3a\u83b7\u5f97\u66f4\u597d\u7684\u9694\u79bb\uff0c\u5c06\u672c\u5730\u4ee3\u7801\u8fd0\u884c\u5728\u6c99\u7bb1\u5316\u5bb9\u5668\uff08\u5982\u5e26 GPU \u8bbf\u95ee\u7684 Docker\uff09\u4e2d\uff0c\u4ee5\u9650\u5236\u7cfb\u7edf\u66b4\u9732\u5e76\u63d0\u5347\u53ef\u5ba1\u8ba1\u6027\u3002<\/p>\n<h3>\u90e8\u7f72\u4e0e\u53ef\u79fb\u690d\u6027<\/h3>\n<p>\u90e8\u7f72 GPU \u52a0\u901f\u7684\u672c\u5730\u4ee3\u7801\u8fdc\u4e0d\u6b62\u6253\u4e00\u4e2a JAR\u3002\u4f60\u9700\u8981\u5904\u7406 GPU \u9a71\u52a8\u517c\u5bb9\u6027\u3001CUDA \u8fd0\u884c\u65f6\u4f9d\u8d56\u3001\u672c\u5730\u5e93\u94fe\u63a5\uff08<code>.so\u3001.dll<\/code>\uff09\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u5dee\u5f02\u3002\u5982\u679c\u4e0d\u52a0\u7ba1\u7406\uff0c\u8fd9\u4e9b\u7ec6\u8282\u5f88\u5bb9\u6613\u5bfc\u81f4\u8de8\u73af\u5883\u788e\u7247\u5316\u3002<\/p>\n<p>\u4e3a\u786e\u4fdd\u4e00\u81f4\u6027\u4e0e\u53ef\u79fb\u690d\u6027\uff0c\u5efa\u8bae\u4f7f\u7528 <a href=\"https:\/\/link.segmentfault.com\/?enc=YjRE66lN5iuPyR38orEPiQ%3D%3D.kMgKObmCMSUyCKywjkrG4XUaRbkHYQIUSlQNLZDILjo%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">CMake<\/a> \u7b49\u6784\u5efa\u5de5\u5177\uff0c\u5e76\u901a\u8fc7 <strong>nvidia-docker<\/strong> \u5bb9\u5668\u5316\u4f60\u7684\u90e8\u7f72\uff0c\u5728\u5f00\u53d1\u4e0e\u751f\u4ea7\u4e4b\u95f4\u5bf9\u9f50 CUDA \u7248\u672c\u4e0e\u7cfb\u7edf\u5e93\u3002<\/p>\n<h3>\u5feb\u901f\u6e05\u5355\u2014\u2014\u8ba9 Java + CUDA \u6ee1\u8db3\u4f01\u4e1a\u7ea7\u8981\u6c42<\/h3>\n<p>\u4ee5\u4e0b\u662f\u751f\u4ea7\u7ea7\u6700\u4f73\u5b9e\u8df5\u7684\u5feb\u901f\u53c2\u8003\uff1a<\/p>\n<ul>\n<li><strong>\u5185\u5b58<\/strong>\uff1a\u6b63\u786e\u4f7f\u7528 <code>cudaMalloc()<\/code>\/<code>cudaFree()<\/code>\uff0c\u624b\u52a8\u7ba1\u7406\u5185\u5b58\u9632\u6b62\u6cc4\u6f0f\uff0c\u5c3d\u53ef\u80fd\u590d\u7528\u5206\u914d\u3002<\/li>\n<li><strong>JNI \u6865<\/strong>\uff1a\u4fdd\u6301 JNI \u5c42\u7ebf\u7a0b\u5b89\u5168\u4e0e\u65e0\u72b6\u6001\u3002\u4f18\u5148\u4f7f\u7528\u539f\u59cb\u6570\u7ec4\u8fdb\u884c\u6570\u636e\u7f16\u7ec4\u3002<\/li>\n<li><strong>\u6d4b\u8bd5<\/strong>\uff1a\u4f7f\u7528\u6a21\u5757\u5316\u7684 CUDA \u5185\u6838\uff0c\u5e76\u7528 <code>cudaGetLastError()<\/code> \u6216\u7c7b\u4f3c\u8bca\u65ad\u9a8c\u8bc1\u6bcf\u4e00\u6b65\u3002<\/li>\n<li><strong>\u5b89\u5168<\/strong>\uff1a\u5728\u4f20\u5165\u672c\u5730\u4ee3\u7801\u524d\u59cb\u7ec8\u6e05\u6d17 Java \u4fa7\u8f93\u5165\u3002\u51cf\u5c11 C++ \u4f9d\u8d56\u4ee5\u964d\u4f4e\u653b\u51fb\u9762\u3002<\/li>\n<li><strong>\u90e8\u7f72<\/strong>\uff1a\u4f7f\u7528\u5bb9\u5668\u5316\uff08\u5982 nvidia-docker\uff09\uff0c\u5e76\u786e\u4fdd CUDA \u7248\u672c\u4e0e\u9a71\u52a8\u5728\u5404\u73af\u5883\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba\u4e0e\u63a5\u4e0b\u6765<\/h2>\n<p>Java \u4e0e CUDA \u7684\u7ec4\u5408\u6216\u8bb8\u5e76\u4e0d\u4e3b\u6d41\uff0c\u4f46\u5728\u5f97\u5f53\u7684\u8fd0\u7528\u4e0b\uff0c\u5b83\u80fd\u4e3a\u4f01\u4e1a\u7cfb\u7edf\u89e3\u9501\u5168\u65b0\u7684\u6027\u80fd\u95e8\u7c7b\u3002\u65e0\u8bba\u4f60\u662f\u5728\u6bcf\u79d2\u5904\u7406\u6570\u767e\u4e07\u8bb0\u5f55\u3001\u5378\u8f7d\u5b89\u5168\u8ba1\u7b97\uff0c\u8fd8\u662f\u6784\u5efa\u8fd1\u5b9e\u65f6\u5206\u6790\u7ba1\u9053\uff0cGPU \u7ea7\u52a0\u901f\u90fd\u80fd\u5e26\u6765\u4ec5\u9760 CPU \u65e0\u6cd5\u5339\u654c\u7684\u901f\u5ea6\u63d0\u5347\u3002<\/p>\n<p>\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7\u7406\u89e3\u5e76\u53d1\u3001\u5e76\u884c\u4e0e\u591a\u8fdb\u7a0b\u4e4b\u95f4\u7684\u57fa\u7840\u5dee\u5f02\uff0c\u63a2\u8ba8\u4e86\u5982\u4f55\u5f25\u5408 Java \u4e0e CUDA \u4e4b\u95f4\u7684\u9e3f\u6c9f\uff1b\u6211\u4eec\u8d70\u67e5\u4e86\u57fa\u4e8e JNI \u4e0e CUDA \u7684\u5b9e\u7528\u96c6\u6210\u6a21\u5f0f\uff0c\u5e76\u4ee5\u4e00\u4e2a\u771f\u5b9e\u7684\u52a0\u5bc6\u7528\u4f8b\u4e0e\u5408\u6210\u57fa\u51c6\u5c55\u793a\u4e86\u6027\u80fd\u63d0\u5347\uff1b\u6700\u540e\uff0c\u6211\u4eec\u8986\u76d6\u4e86\u4f01\u4e1a\u7ea7\u6700\u4f73\u5b9e\u8df5\uff0c\u4ee5\u786e\u4fdd\u5728\u5404\u73af\u5883\u4e2d\u7684\u5185\u5b58\u5b89\u5168\u3001\u8fd0\u884c\u7a33\u5b9a\u3001\u53ef\u6d4b\u8bd5\u4e0e\u90e8\u7f72\u53ef\u79fb\u690d\u6027\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u8fd9\u5f88\u91cd\u8981<\/h3>\n<p>Java \u5f00\u53d1\u8005\u4e0d\u518d\u53d7\u9650\u4e8e\u7ebf\u7a0b\u6c60\u4e0e\u6267\u884c\u5668\u670d\u52a1\u3002\u901a\u8fc7\u6865\u63a5\u5230 CUDA\uff0c\u4f60\u53ef\u4ee5\u7a81\u7834 JVM \u6838\u5fc3\u6570\u91cf\u7684\u9650\u5236\uff0c\u5c06 HPC \u98ce\u683c\u7684\u6267\u884c\u5e26\u5165\u6807\u51c6\u4f01\u4e1a\u7cfb\u7edf\uff0c\u800c\u65e0\u9700\u91cd\u5199\u6574\u4e2a\u6280\u672f\u6808\u3002<\/p>\n<h3>\u4e0b\u4e00\u6b65<\/h3>\n<p>\u5728\u540e\u7eed\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8\uff1a<\/p>\n<ul>\n<li><strong>Java \u4fa7\u7684 CPU-GPU \u6df7\u5408\u8c03\u5ea6\u6a21\u5f0f<\/strong><\/li>\n<li><strong>\u57fa\u4e8e ONNX \u7684 AI \u6a21\u578b\u5728 GPU \u4e0a\u7684\u63a8\u7406<\/strong>\uff08\u542b Java \u7ed1\u5b9a\uff09<\/li>\n<li><strong>\u91c7\u7528\u5916\u90e8\u51fd\u6570\u4e0e\u5185\u5b58 API\uff08<a href=\"https:\/\/link.segmentfault.com\/?enc=ly4c5RNM9ymcykMEFFZsuA%3D%3D.GeNC97XhBzAeWN%2FJis3yKVSDC1IgqPW%2Byo2fyIyXlnk%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">JEP 454<\/a>\uff09<\/strong>\uff0c\u5b83\u88ab\u5b9a\u4f4d\u4e3a JNI \u7684\u66ff\u4ee3\u3002\u8be5 API \u63d0\u4f9b\u66f4\u5b89\u5168\u3001\u66f4\u73b0\u4ee3\u7684\u672c\u5730\u5e93\u8c03\u7528\u65b9\u5f0f\u3002\u968f\u7740\u5176\u6f14\u8fdb\uff0c\u53ef\u80fd\u663e\u8457\u7b80\u5316\u5e76\u6539\u5584 Java \u4e0e CUDA \u4e4b\u95f4\u7684\u4e92\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<blockquote><p>\u672c\u6587\u7ffb\u8bd1\u81ea\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=bfRjvF71g1LI0jfllgyAcQ%3D%3D.w8K3lSoI0%2BrXcUmq%2BVoknnudQmwg7JAGTjpC1Zt41E%2FthsR4dynR4Q2U7OxflwoFTvxOBNaZOpqmDL%2Fj%2Bit46g%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">https:\/\/www.infoq.com\/articles\/cuda-integration-for-java\/<\/a> \uff0c\u4f5c\u8005\uff1aSyed Danish Ali<\/p><\/blockquote>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000047316924\">https:\/\/segmentfault.com\/a\/1190000047316924<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f15\u8a00 \u5728\u4f01\u4e1a\u8f6f\u4ef6\u4e16\u754c\u4e2d\uff0cJava \u4f9d\u9760\u5176\u53ef\u9760\u6027\u3001\u53ef\u79fb\u690d\u6027\u4e0e\u4e30\u5bcc\u751f\u6001\u6301\u7eed\u5360\u636e\u4e3b\u5bfc\u5730\u4f4d\u3002 \u7136\u800c\uff0c\u4e00\u65e6\u6d89\u53ca\u9ad8\u6027\u80fd\u8ba1\u7b97 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10021028","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10021028"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10021028\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10021028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10021028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10021028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}