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LLVM CLANG OpenCL CUDA OpenACC C++AMP OpenMP MPIzh-cnWed, 20 Feb 2013 07:10:01 GMTWed, 20 Feb 2013 07:10:01 GMT60嫻呰皥澶氳妭鐐笴PU+GPU鍗忓悓璁$畻璐熻澆鍧囪 鎬ц璁?/title><link>http://www.shnenglu.com/jackdongy/archive/2013/02/17/197878.html</link><dc:creator>jackdong</dc:creator><author>jackdong</author><pubDate>Sun, 17 Feb 2013 05:27:00 GMT</pubDate><guid>http://www.shnenglu.com/jackdongy/archive/2013/02/17/197878.html</guid><wfw:comment>http://www.shnenglu.com/jackdongy/comments/197878.html</wfw:comment><comments>http://www.shnenglu.com/jackdongy/archive/2013/02/17/197878.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/jackdongy/comments/commentRss/197878.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/jackdongy/services/trackbacks/197878.html</trackback:ping><description><![CDATA[<p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><div>http://blog.csdn.net/zhang0311/article/details/8224093</div>榪戝勾鏉ワ紝鍩轟簬CPU+GPU鐨勬販鍚堝紓鏋勮綆楃郴緇熷紑濮嬮愭笎鎴愪負鍥藉唴澶栭珮鎬ц兘璁$畻棰嗗煙鐨勭儹鐐圭爺絀舵柟鍚戙傚湪瀹為檯搴旂敤涓紝璁稿鍩轟簬 CPU+GPU 鐨勬販鍚堝紓鏋勮綆楁満緋葷粺琛ㄧ幇鍑轟簡鑹ソ鐨勬ц兘銆備絾鏄紝鐢變簬鍚勭鍘嗗彶鍜岀幇瀹炲師鍥犵殑鍒剁害錛屽紓鏋勮綆椾粛鐒墮潰涓寸潃璇稿鏂歸潰鐨勯棶棰橈紝鍏朵腑鏈紿佸嚭鐨勯棶棰樻槸紼嬪簭寮鍙戝洶闅撅紝灝ゅ叾鏄墿灞曞埌闆嗙兢瑙勬ā綰у埆鏃惰繖涓棶棰樻洿涓虹獊鍑恒備富瑕佽〃鐜板湪鎵╁睍鎬с佽礋杞藉潎琛°佽嚜閫傚簲鎬с侀氫俊銆佸唴瀛樼瓑鏂歸潰銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">涓銆?nbsp;   CPU+GPU鍗忓悓璁$畻妯″紡</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">CPU+GPU寮傛瀯鍗忓悓璁$畻闆嗙兢濡傚浘1鎵紺猴紝CPU+GPU寮傛瀯闆嗙兢鍙互鍒掑垎鎴愪笁涓茍琛屽眰嬈★細鑺傜偣闂村茍琛屻佽妭鐐瑰唴CPU涓嶨PU寮傛瀯騫惰銆佽澶囷紙CPU鎴朑PU錛夊唴騫惰銆傛牴鎹繖涓変釜灞傛鎴戜滑鍙互寰楀埌CPU+GPU寮傛瀯鍗忓悓璁$畻妯″紡涓猴細鑺傜偣闂村垎甯冨紡+鑺傜偣鍐呭紓鏋勫紡+璁懼鍐呭叡浜紡銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">1           鑺傜偣闂村垎甯冨紡</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">CPU+GPU寮傛瀯鍗忓悓璁$畻闆嗙兢涓紝鍚勪釜鑺傜偣涔嬮棿鐨勮繛鎺ヤ笌浼犵粺CPU闆嗙兢涓鏍鳳紝閲囩敤緗戠粶榪炴帴錛屽洜姝わ紝鑺傜偣闂撮噰鐢ㄤ簡鍒嗗竷寮忕殑璁$畻鏂瑰紡錛屽彲浠ラ噰鐢∕PI娑堟伅閫氫俊鐨勫茍琛岀紪紼嬭璦銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">2           鑺傜偣鍐呭紓鏋勫紡</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">CPU+GPU寮傛瀯鍗忓悓璁$畻闆嗙兢涓紝姣忎釜鑺傜偣涓婂寘鍚鏍窩PU鍜屼竴鍧楁垨澶氬潡GPU鍗★紝鑺傜偣鍐呴噰鐢ㄤ簡寮傛瀯鐨勬灦鏋勶紝閲囩敤涓諱粠寮忕殑緙栫▼妯″瀷錛屽嵆姣忎釜GPU鍗¢渶瑕佺敱CPU榪涚▼/綰跨▼璋冪敤銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鐢變簬姣忎釜鑺傜偣涓婏紝CPU鏍告暟涔熸瘮杈冨錛岃綆楄兘鍔涗篃寰堝ぇ錛屽洜姝わ紝鍦ㄥ鏁版儏鍐典笅錛孋PU涔熶細鍙備笌閮ㄥ垎騫惰璁$畻錛屾牴鎹瓹PU鏄惁鍙備笌騫惰璁$畻錛屾垜浠彲浠ユ妸CPU+GPU寮傛瀯鍗忓悓璁$畻鍒掑垎鎴愪袱縐嶈綆楁ā寮忥細</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">1)       CPU/GPU鍗忓悓璁$畻錛欳PU鍙礋璐e鏉傞昏緫鍜屼簨鍔″鐞嗙瓑涓茶璁$畻錛孏PU 榪涜澶ц妯″茍琛岃綆楋紱</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">2)       CPU+GPU鍏卞悓璁$畻錛氱敱涓涓狢PU榪涚▼/綰跨▼璐熻矗澶嶆潅閫昏緫鍜屼簨鍔″鐞嗙瓑涓茶璁$畻錛屽叾瀹僀PU榪涚▼/綰跨▼璐熻矗灝忛儴鍒嗗茍琛岃綆楋紝GPU璐熻矗澶ч儴鍒嗗茍琛岃綆椼?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鐢變簬CPU/GPU鍗忓悓璁$畻妯″紡姣擟PU+GPU鍏卞悓璁$畻妯″紡綆鍗曪紝涓嬮潰鐨勪粙緇嶄腑錛屾垜浠互CPU+GPU鍏卞悓璁$畻妯″紡涓轟緥榪涜灞曞紑浠嬬粛鍚勭緙栫▼妯″紡銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍦–PU+GPU鍏卞悓璁$畻妯″紡涓嬶紝鎴戜滑鎶婃墍鏈夌殑CPU緇熺О涓轟竴涓澶囷紙device錛夛紝濡傚弻璺?鏍窩PU鍏辨湁16涓牳錛屾垜浠妸榪?6涓牳緇熺О鎴愪竴涓澶囷紱姣忎釜GPU鍗℃垚涓轟竴涓澶囥傛牴鎹繖縐嶅垝鍒嗘柟寮忥紝鎴戜滑鍙互閲囩敤MPI榪涚▼鎴朞penMP綰跨▼鎺у埗鑺傜偣鍐呯殑鍚勮澶囦箣闂寸殑閫氫俊鍜屾暟鎹垝鍒嗐?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">3           璁懼鍐呭叡浜紡</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">1)       CPU璁懼錛氭瘡涓妭鐐瑰唴鐨勬墍鏈夊鏍窩PU閲囩敤浜嗗叡浜瓨鍌ㄦā鍨嬶紝鍥犳錛屾妸鑺傜偣鍐呯殑鎵鏈夊鏍窩PU鐪嬩綔涓涓澶囷紝 鍙互閲囩敤MPI榪涚▼鎴朞penMP綰跨▼銆乸Thread綰跨▼鎺у埗榪欎簺CPU鏍哥殑騫惰璁$畻銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">2)       GPU璁懼錛欸PU璁懼鍐呮湁鑷繁鐙珛鐨凞RAM瀛樺偍錛孏PU璁懼涔熸槸鍏變韓瀛樺偍妯″瀷錛屽湪GPU涓婇噰鐢–UDA鎴朞penCL緙栫▼鎺у埗GPU浼楁牳鐨勫茍琛岃綆椼侰UDA緙栫▼妯″紡鍙湪NVIDIA GPU涓婃敮鎸侊紝OpenCL緙栫▼妯″紡鍦∟VIDIA GPU鍜孉MD GPU閮芥敮鎸併?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鏍規嵁鍓嶉潰瀵笴PU+GPU寮傛瀯鍗忓悓璁$畻妯″紡鐨勬弿榪幫紝鎴戜滑鍙互寰楀埌CPU+GPU寮傛瀯鍗忓悓璁$畻鐨勭紪紼嬫ā鍨嬶紙浠PI鍜孫penMP涓轟緥錛夊琛?鎵紺恒?/p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><img src="http://img.my.csdn.net/uploads/201211/26/1353891940_7225.jpg" alt="" style="margin: 0px; padding: 0px; border: none;" /><br style="margin: 0px; padding: 0px;" /></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍥? CPU+GPU寮傛瀯鍗忓悓璁$畻鏋舵瀯</p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">琛? CPU+GPU寮傛瀯鍗忓悓璁$畻緙栫▼妯″瀷</p><div align="center" style="margin: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><table border="1" cellspacing="0" cellpadding="0" style="margin: 0px; padding: 0px;"><tbody style="margin: 0px; padding: 0px;"><tr style="margin: 0px; padding: 0px;"><td rowspan="2" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;"> </p></td><td rowspan="2" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">鑺傜偣闂村垎甯冨紡</p></td><td rowspan="2" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">鑺傜偣鍐呭紓鏋勫紡</p></td><td colspan="2" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">璁懼鍐呭叡浜紡</p></td></tr><tr style="margin: 0px; padding: 0px;"><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">CPU</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">GPU</p></td></tr><tr style="margin: 0px; padding: 0px;"><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">妯″紡1</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">OpenMP</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">OpenMP</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">CUDA/OpenCL</p></td></tr><tr style="margin: 0px; padding: 0px;"><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">妯″紡2</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">OpenMP</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">CUDA/OpenCL</p></td></tr><tr style="margin: 0px; padding: 0px;"><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">妯″紡3</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">MPI</p></td><td valign="top" style="margin: 0px; padding: 0px;"><p align="center" style="margin: 0px; padding: 0px;">CUDA/OpenCL</p></td></tr></tbody></table></div><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">浜屻?nbsp;   CPU+GPU鍗忓悓璁$畻璐熻澆鍧囪 鎬ц璁?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">涓嬮潰浠ユā寮?涓轟緥綆鍗曚粙緇嶅鑺傜偣CPU+GPU鍗忓悓璁$畻浠誨姟鍒掑垎鍜岃礋杞藉潎琛★紝妯″紡2鐨勮繘紼嬪拰綰跨▼涓嶤PU鏍稿拰GPU璁懼瀵瑰簲鍏崇郴濡傚浘2鎵紺恒傝嫢閲囩敤涓諱粠寮廙PI閫氫俊鏈哄埗錛屾垜浠湪鑺傜偣0涓婂璧蜂竴涓繘紼嬶紙0鍙瘋繘紼嬶級浣滀負涓昏繘紼嬶紝鎺у埗鍏跺畠鎵鏈夎繘紼嬨傛瘡涓妭鐐逛笂鍚姩3涓綆楄繘紼嬶紝鍏朵腑涓や釜鎺у埗GPU璁懼錛屼竴涓帶鍒跺叾浣欐墍鏈塁PU鏍哥殑騫惰錛屽湪GPU鍐呴噰鐢–UDA/OpenCL騫惰錛屽湪CPU璁懼鍐呴噰鐢∣penMP澶氱嚎紼嬪茍琛屻?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鐢變簬CPU+GPU鍗忓悓璁$畻妯″紡鍒嗕負3涓眰嬈★紝閭d箞璐熻澆鍧囪 鎬т篃闇瑕佸湪榪?涓眰嬈′笂鍒嗗埆璁捐銆傚湪妯″紡2鐨勭紪紼嬫柟寮忎笅錛岃妭鐐瑰唴鍜岃妭鐐歸棿鍧囬噰鐢∕PI榪涚▼錛屽悎浜屼負涓錛岃璁¤礋杞藉潎琛℃椂錛屽彧闇瑕佸仛鍒拌繘紼嬮棿錛堣澶囦箣闂達級鐨勮礋杞藉潎琛″拰CPU璁懼鍐匫penMP綰跨▼璐熻澆鍧囪 銆丟PU璁懼鍐匔UDA綰跨▼璐熻澆鍧囪 鍗沖彲銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">瀵逛簬璁懼鍐咃紝閲囩敤鐨勬槸鍏變韓瀛樺偍鍣ㄦā鍨嬶紝CPU璁懼涓婄殑OpenMP綰跨▼鍙互閲囩敤schedule(static/ dynamic/ guided )鏂瑰紡錛汫PU璁懼涓婂彧瑕佷繚璇佸悓涓warp鍐呯殑綰跨▼璐熻澆鍧囪 鍗沖彲銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">瀵逛簬CPU+GPU鍗忓悓璁$畻錛岀敱浜嶤PU鍜孏PU璁$畻鑳藉姏鐩稿樊寰堝ぇ錛屽洜姝わ紝鍦ㄥ浠誨姟鍜屾暟鎹垝鍒嗘椂涓嶈兘緇機PU璁懼鍜孏PU璁懼鍒掑垎鐩稿悓鐨勪換鍔?鏁版嵁閲忥紝榪欏氨澧炲姞浜咰PU涓嶨PU璁懼闂磋礋杞藉潎琛$殑闅懼害銆侰PU涓嶨PU涔嬮棿鐨勮礋杞藉潎琛℃渶濂界殑鏂瑰紡鏄噰鐢ㄥ姩鎬佽礋杞藉潎琛$殑鏂規硶錛岀劧鑰屾湁浜涘簲鐢ㄦ棤娉曠敤鍔ㄦ佸垝鍒嗚屽彧鑳介噰鐢ㄩ潤鎬佸垝鍒嗙殑鏂瑰紡銆備笅闈㈡垜浠垎鍒粙緇嶅姩鎬佸垝鍒嗗拰闈欐佸垝鍒嗐?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">1)       鍔ㄦ佸垝鍒嗭細瀵逛簬涓浜涢珮鎬ц兘璁$畻搴旂敤紼嬪簭錛屽湪CPU涓嶨PU涔嬮棿鐨勮礋杞藉潎琛″彲浠ラ噰鐢ㄥ姩鎬佽礋杞藉潎琛$殑浼樺寲鏂規硶錛屼緥濡傛湁N涓換鍔?鏁版嵁錛屼竴涓妭鐐瑰唴鏈?涓狦PU鍗★紝鍗充笁涓澶囷紙CPU鍜?涓狦PU錛夛紝鍔ㄦ佽礋杞藉潎琛$殑鏂規硶鏄瘡涓澶囧厛鑾峰彇涓涓換鍔?鏁版嵁榪涜璁$畻錛岃綆椾箣鍚庣珛鍗寵幏鍙栦笅涓涓換鍔★紝涓嶉渶瑕佺瓑寰呭叾浠栬澶囷紝鐩村埌N涓換鍔?鏁版嵁璁$畻瀹屾垚銆傝繖縐嶆柟寮忓彧闇瑕佸湪闆嗙兢涓婅瀹氫竴涓富榪涚▼錛岃礋璐g粰鍚勪釜璁$畻榪涚▼鍒嗛厤浠誨姟/鏁版嵁銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">2)       闈欐佸垝鍒嗭細鍦ㄤ竴浜涘簲鐢ㄤ腑錛屾棤娉曢噰鐢ㄥ姩鎬佸垝鍒嗙殑鏂瑰紡錛岄渶瑕侀潤鎬佸垝鍒嗘柟娉曪紝鐒惰岄潤鎬佸垝鍒嗘柟娉曚嬌寮傛瀯璁懼闂寸殑璐熻澆鍧囪 鍙樺緱鍥伴毦錛屾湁鏃剁敋鑷蟲棤娉曞疄鐜般傚浜庝竴浜涜凱浠e簲鐢ㄧ▼搴忥紝鎴戜滑鍙互閲囩敤瀛︿範鍨嬬殑鏁版嵁鍒掑垎鏂規硶錛屽鍏堣CPU鍜孏PU鍒嗗埆鍋氫竴嬈$浉鍚岃綆楅噺鐨勮綆楋紝鐒跺悗閫氳繃鍚勮嚜鐨勮繍琛屾椂闂磋綆楀嚭CPU涓嶨PU鐨勮綆楄兘鍔涙瘮渚嬶紝鐒跺悗鍐嶅鏁版嵁榪涜鍒掑垎銆?/p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><img src="http://img.my.csdn.net/uploads/201211/26/1353891946_9356.jpg" alt="" style="margin: 0px; padding: 0px; border: none;" /><br style="margin: 0px; padding: 0px;" /></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍥? CPU+GPU鍗忓悓璁$畻紺烘剰鍥撅紙浠ユ瘡涓妭鐐?涓狦PU涓轟緥錛?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">涓夈?nbsp;   CPU+GPU鍗忓悓璁$畻鏁版嵁鍒掑垎紺轟緥</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍋囪鏌愪竴搴旂敤鐨勬暟鎹壒鐐瑰鍥?鎵紺猴紝浠庤緭鍑虹湅錛岀粨鏋滀腑鐨勬瘡涓肩殑璁$畻闇瑕佹墍鏈夎緭鍏ユ暟鎹殑淇℃伅錛屾墍鏈夎緭鍑哄肩殑璁$畻涔嬮棿娌℃湁浠諱綍鏁版嵁渚濊禆鎬э紝鍙互琛ㄧず鎴恛ut<sub style="margin: 0px; padding: 0px;">j</sub>=錛涗粠杈撳叆鐪嬶紝姣忎釜杈撳叆鍊煎鎵鏈夌殑杈撳嚭鍊奸兘浜х敓褰卞搷錛屾墍鏈夎緭鍏ユ暟鎹箣闂翠篃娌℃湁浠諱綍鏁版嵁渚濊禆鎬с備粠鏁版嵁鐗圭偣鍙互鐪嬪嚭錛岃搴旂敤鏃㈠彲浠ュ杈撳叆榪涜騫惰鏁版嵁鍒掑垎涔熷彲浠ュ杈撳嚭榪涜鏁版嵁鍒掑垎銆備笅闈㈡垜浠垎鏋怌PU+GPU鍗忓悓璁$畻鏃剁殑鏁版嵁鍒掑垎鏂瑰紡銆?/p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><img src="http://img.my.csdn.net/uploads/201211/26/1353891950_9638.jpg" alt="" style="margin: 0px; padding: 0px; border: none;" /><br style="margin: 0px; padding: 0px;" /></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍥? 騫惰鏁版嵁紺轟緥</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">1         鎸夎緭鍏ユ暟鎹垝鍒?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍋囪鎸夎緭鍏ユ暟鎹垝鍒嗭紝鎴戜滑鍙互閲囩敤鍔ㄦ佺殑鏂瑰紡緇欐瘡涓狢PU鎴朑PU璁懼鍒嗛厤鏁版嵁錛屽仛鍒板姩鎬佽礋杞藉潎琛★紝鐒惰岃繖縐嶅垝鍒嗘柟寮忥紝浣挎墍鏈夌殑綰跨▼鍚戝悓涓涓緭鍑轟綅緗繚瀛樼粨鏋滐紝涓轟簡姝g‘鎬э紝闇瑕佷嬌鎵鏈夌殑綰跨▼瀵規瘡涓粨鏋滆繘琛屽師瀛愭搷浣滐紝榪欐牱灝嗕細涓ラ噸褰卞搷鎬ц兘錛屾瀬绔儏鍐典笅錛屾墍鏈夌嚎紼嬭繕鏄寜欏哄簭鎵ц鐨勩傚洜姝わ紝榪欑鏂瑰紡鏁堟灉寰堝樊銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">2         鎸夎緭鍑烘暟鎹垝鍒?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鎸夎緭鍑烘暟鎹垝鍒嗙殑璇濆彲浠ヨ姣忎釜綰跨▼鍋氫笉鍚屼綅緗殑緇撴灉璁$畻錛岃綆楀畬鍏ㄧ嫭绔嬶紝娌℃湁渚濊禆鎬с傚鏋滈噰鐢ㄩ潤鎬佸垝鍒嗙殑鏂瑰紡錛岀敱浜嶤PU鍜孏PU璁$畻鑳藉姏涓嶅悓錛屽洜姝わ紝寰堥毦鍋氬埌璐熻澆鍧囪 銆傞噰鐢ㄥ姩鎬佺殑鏂瑰紡鍙互鍋氬埌璐熻澆鍧囪 錛屽嵆鎶婄粨鏋滄瘡嬈$粰CPU鎴朑PU璁懼涓鍧楋紝褰撹澶囪綆楀畬鏈涔嬪悗錛岀珛鍗沖悜涓昏繘紼嬬敵璇蜂笅涓涓垎鍧楋紝榪欐牱鍙互鍋氬埌瀹屽叏璐熻澆鍧囪 銆傛寜杈撳嚭鏁版嵁鍒掑垎錛屾棤璁洪噰鐢ㄩ潤鎬佸垝鍒嗚繕鏄姩鎬佸垝鍒嗭紝閮戒細甯︽潵鍙﹀涓涓棶棰橈紝鐢變簬姣忎釜緇撴灉鐨勮綆楅兘闇瑕佹墍鏈夎緭鍏ヤ俊鎭紝閭d箞鎵鏈夎繘紼嬶紙璁懼錛夐兘闇瑕佽鍙栦竴閬嶆墍鏈夎緭鍏ユ暟鎹紝鍔ㄦ佸垝鍒嗘椂榪樹笉鍙竴嬈★紝灝ゅ叾瀵逛簬杈撳叆鏁版嵁寰堝ぇ鏃訛紝榪欏皢浼氬杈撳叆鏁版嵁鐨処O浜х敓寰堝ぇ鐨勫獎鍝嶏紝寰堟湁鍙兘浣縄O紼嬪簭鎬ц兘鐡墮銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">3         鎸夎緭鍏ュ拰杈撳嚭鍚屾椂鍒掑垎</p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鐢變簬鎸夎緭鍏ユ垨鎸夎緭鍑哄垝鍒嗛兘瀛樺湪涓嶅悓鐨勭己鐐癸紝鎴戜滑鍙互閲囩敤杈撳叆鍜岃緭鍑哄悓鏃跺垝鍒嗙殑鏂瑰紡榪涜鏁版嵁鍒掑垎錛屽鍥?鎵紺恒?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">浠庤緭鍑鴻搴︼紝璁╂墍鏈夌殑璁$畻榪涚▼錛堣澶囷級閮芥湁涓浠借綆楃粨鏋滐紝璁懼鍐呯殑綰跨▼瀵圭粨鏋滆繘琛屽茍琛岃綆楋紝姣忎釜璁懼閮芥湁涓浠藉眬閮ㄧ殑璁$畻緇撴灉錛屾墍鏈夎澶囬兘璁$畻瀹屾瘯涔嬪悗錛屽埄鐢∕PI榪涚▼瀵規墍鏈夎澶囩殑璁$畻緇撴灉榪涜瑙勭害錛岃綰︽渶鍚庣殑緇撴灉鍗蟲槸鏈緇堢殑緇撴灉銆?/p><p style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">浠庤緭鍏ヨ搴︼紝鎸夎緭鍏ユ暟鎹姩鎬佸垝鍒嗙粰涓嶅悓鐨勮綆楄繘紼嬶紙璁懼錛夛紝榪欐牱鍙互婊¤凍鎵鏈夌殑璁$畻榪涚▼璐熻澆鍧囪 銆?/p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;"><img src="http://img.my.csdn.net/uploads/201211/26/1353891955_9226.jpg" alt="" style="margin: 0px; padding: 0px; border: none;" /><br style="margin: 0px; padding: 0px;" /></p><p align="center" style="margin: 0px; padding: 0px; color: #333333; font-family: Arial; line-height: 26px; background-color: #ffffff;">鍥? CPU+GPU鍗忓悓璁$畻鏁版嵁鍒掑垎紺轟緥</p><img src ="http://www.shnenglu.com/jackdongy/aggbug/197878.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/jackdongy/" target="_blank">jackdong</a> 2013-02-17 13:27 <a href="http://www.shnenglu.com/jackdongy/archive/2013/02/17/197878.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>VLIW on Cypress and vector additionhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197154.htmljackdongjackdongWed, 09 Jan 2013 08:37:00 GMThttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197154.htmlhttp://www.shnenglu.com/jackdongy/comments/197154.htmlhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197154.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/197154.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/197154.html闃呰鍏ㄦ枃

jackdong 2013-01-09 16:37 鍙戣〃璇勮
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Low ALUBusy and low FetchUnitBusyhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197153.htmljackdongjackdongWed, 09 Jan 2013 08:26:00 GMThttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197153.htmlhttp://www.shnenglu.com/jackdongy/comments/197153.htmlhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197153.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/197153.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/197153.htmlhttp://devgurus.amd.com/thread/158866

Low ALUBusy and low FetchUnitBusy

姝ら棶棰?nbsp;鏈鍥炵瓟 銆?/strong>

NURBSNewbie
NURBS 2012-3-19 涓嬪崍1:35

Hi,

      When my kernel performs badly, the APP profiler reports a very low ALUBusy and low FetchUniBusy, (Both less than 10%)

      What can be the bottleneck here? Could it be because of the high number of code paths?

 

 

Thanks

NURBS

鏈夌敤絳旀 浣滆?nbsp;pesh 
  • 140 嫻忚嬈℃暟
  • 鏈夌敤絳旀Re: Low ALUBusy and low FetchUnitBusy
    peshNewbie
    pesh 2012-3-26 涓婂崍7:07 (鍥炲 NURBS)

    Hi, NURBS!

    Can you provide information about your device? If it's an AMD APU then there were problems with performance counters in previous versions of APP Profiler.

    Also, check ALUPacking counter, if it has low value, then you code is VLIW limited and ALUBusy is poor, in this case try to reduce some data dependencies across sequential operations, it will allow compiler to better pack ALU instructions in VLIW, and utilize ALU resources. Try to reduce control flow statements, they affect counters to. In your situation, maybe you have if-statements, where in one branch you do fetch operation, and in another do some computations? That will cause some part of wavefront do fetch, and only after that remainder of wavefront will do ALU operations. So you will use only part of resources at time.

    • Re: Low ALUBusy and low FetchUnitBusy
      NURBSNewbie
      NURBS 2012-3-26 涓婂崍7:57 (鍥炲 pesh)

      I have dual Radeon 6950 with either 12.3 or the new beta driver. It seems control flow was the issue, things are much better now. Is there an equation  I can use to sum up the numbers of counters to 100%, so that I can be more certain I am not getting bogus numbers?

      • Re: Low ALUBusy and low FetchUnitBusy
        peshNewbie
        pesh 2012-3-26 涓婂崍8:46 (鍥炲 NURBS)

        I guess no, there is no such equation. First of all because when fetch instruction is applied by wavefront executing on compute unit, this wavefront goes to fetch unit, where it sits until fetch is done. At this time other wavefronts are doing calculations, or wait unit fetch unit become free, to execute next fetch instructions. So when some wavefronts are doing memory read or write other can do computations, and in the best case both counters can have 100% value, and ALUFetchRatio counter will equal to 1. Another important counters is FetchUnitStalled and WriteUnitStalled, try to keep them about 0 value. If it's too big, then many of wavefront are waiting for fetch unit to do memory read/write. To improve performance first of all, try to use sequential memory access pattern, then try to use local memory, if your algorithm reuse data several timers within workgroup.



jackdong 2013-01-09 16:26 鍙戣〃璇勮
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Understanding performance countershttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197150.htmljackdongjackdongWed, 09 Jan 2013 05:36:00 GMThttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197150.htmlhttp://www.shnenglu.com/jackdongy/comments/197150.htmlhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197150.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/197150.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/197150.html闃呰鍏ㄦ枃

jackdong 2013-01-09 13:36 鍙戣〃璇勮
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ALUBusy questionhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197140.htmljackdongjackdongWed, 09 Jan 2013 02:35:00 GMThttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197140.htmlhttp://www.shnenglu.com/jackdongy/comments/197140.htmlhttp://www.shnenglu.com/jackdongy/archive/2013/01/09/197140.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/197140.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/197140.html闃呰鍏ㄦ枃

jackdong 2013-01-09 10:35 鍙戣〃璇勮
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閫傜敤浜嶢TI鍗$殑GPU璁$畻MD5鐨勫皬紼嬪簭婧愮爜錛屽熀浜嶢MD APP SDK寮鍙?/title><link>http://www.shnenglu.com/jackdongy/archive/2012/12/27/196701.html</link><dc:creator>jackdong</dc:creator><author>jackdong</author><pubDate>Thu, 27 Dec 2012 02:46:00 GMT</pubDate><guid>http://www.shnenglu.com/jackdongy/archive/2012/12/27/196701.html</guid><wfw:comment>http://www.shnenglu.com/jackdongy/comments/196701.html</wfw:comment><comments>http://www.shnenglu.com/jackdongy/archive/2012/12/27/196701.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.shnenglu.com/jackdongy/comments/commentRss/196701.html</wfw:commentRss><trackback:ping>http://www.shnenglu.com/jackdongy/services/trackbacks/196701.html</trackback:ping><description><![CDATA[     鎽樿: 浠ヤ笅浠g爜鍦╳in7 home basic , ati hd 5450騫沖彴嫻嬭瘯閫氳繃錛屽鐞嗛熷害涓烘瘡縐?00涓囨銆?  紼嬪簭寰堢畝鍗曪紝鍙湁涓涓猰ain.cpp紼嬪簭銆侱evice绔彧鏈変竴涓猰d5.cl鏂囦歡銆?涓嬮潰鎴戞妸浠g爜璐村嚭鏉ワ紝鍥犱負涓嶈兘涓婁紶闄勪歡錛屾垜鎶婂畬鏁村伐紼嬪寘鏀懼埌浜?42337476鐨勭兢鍏變韓閲岄潰銆傘傘傘?  main.cpp #include "CL\cl.h" #...  <a href='http://www.shnenglu.com/jackdongy/archive/2012/12/27/196701.html'>闃呰鍏ㄦ枃</a><img src ="http://www.shnenglu.com/jackdongy/aggbug/196701.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.shnenglu.com/jackdongy/" target="_blank">jackdong</a> 2012-12-27 10:46 <a href="http://www.shnenglu.com/jackdongy/archive/2012/12/27/196701.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>Test latency for clEnqueueNDRangeKernelhttp://www.shnenglu.com/jackdongy/archive/2012/12/03/195936.htmljackdongjackdongMon, 03 Dec 2012 13:32:00 GMThttp://www.shnenglu.com/jackdongy/archive/2012/12/03/195936.htmlhttp://www.shnenglu.com/jackdongy/comments/195936.htmlhttp://www.shnenglu.com/jackdongy/archive/2012/12/03/195936.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/195936.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/195936.html闃呰鍏ㄦ枃

jackdong 2012-12-03 21:32 鍙戣〃璇勮
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閲囩敤OpenCL鏍囧噯瀹炵幇FPGA璁捐http://www.shnenglu.com/jackdongy/archive/2012/11/22/195577.htmljackdongjackdongThu, 22 Nov 2012 14:00:00 GMThttp://www.shnenglu.com/jackdongy/archive/2012/11/22/195577.htmlhttp://www.shnenglu.com/jackdongy/comments/195577.htmlhttp://www.shnenglu.com/jackdongy/archive/2012/11/22/195577.html#Feedback0http://www.shnenglu.com/jackdongy/comments/commentRss/195577.htmlhttp://www.shnenglu.com/jackdongy/services/trackbacks/195577.htmlOpenCL鏍囧噯綆浠?/span>

OpenCL搴旂敤紼嬪簭鍚湁涓ら儴鍒嗐侽penCL涓葷▼搴忔槸綰蔣浠朵緥紼嬶紝浠ユ爣鍑咰/C++緙栧啓錛屽彲浠ヨ繍琛屽湪浠諱綍綾誨瀷鐨勫井澶勭悊鍣ㄤ笂銆備緥濡傦紝榪欑被澶勭悊鍣ㄥ彲浠ユ槸FPGA涓殑宓屽叆寮忚蔣鏍稿鐞嗗櫒銆佺‖鏍窤RM澶勭悊鍣ㄦ垨鑰呭緗畑86澶勭悊鍣紝濡傚浘4鎵紺恒?/p>

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1Khronos闆嗗洟緗戠珯瀵筄penCL鏍囧噯榪涜浜嗚緇嗙殑浠嬬粛銆?/span>

       涓嶤PU鍜孏PU涓嶅悓錛屽叾騫惰綰跨▼鍙互鍦ㄤ笉鍚岀殑鍐呮牳涓墽琛岋紝鑰孎PGA鑳藉鎻愪緵涓嶅悓鐨勭瓥鐣ャ傚彲浠ユ妸鍐呮牳鍔熻兘浼犻佸埌涓撶敤娣卞害嫻佹按綰跨‖浠剁數璺腑錛屽畠浣跨敤浜嗘祦姘寸嚎騫惰澶勭悊姒傚康錛屽湪鏈川涓婂氨鏄綰跨▼鐨勩傝繖浜涙祦姘寸嚎鐨勬瘡涓鏉¢兘鍙互澶嶅埗澶氭錛屼笌涓鏉℃祦姘寸嚎鐩告瘮錛屾彁渚涙洿寮虹殑騫惰澶勭悊鍔熻兘銆傚鍥?鎵紺猴紝鍙互閫氳繃綰ц仈鍔熻兘鍗曞厓瀹炵幇鐭㈤噺鍔犳硶鍐呮牳錛屽湪OpenCL鎻忚堪涓疄鐜版瘡涓鎿嶄綔錛岃繘琛屽鍒朵互婊¤凍瀹為檯搴旂敤鐨勫悶鍚愰噺鍜屽歡鏃惰姹傘?/p>

       铏界劧鎵鏄劇ず鐨勫彧鏄竴涓畝鍗曡〃寰侊紝浣嗘瘡涓姛鑳藉崟鍏冮兘鍙互鏄繁搴︽祦姘寸嚎錛屼互淇濊瘉鏈緇堢數璺殑宸ヤ綔棰戠巼瓚沖楂樸傛澶栵紝緙栬瘧鍣ㄥ彲浠ュ緩绔嬬數璺潵綆$悊涓庡閮ㄧ郴緇熺殑閫氫俊銆傚湪榪欎釜渚嬪瓙涓紝DDRx鎺у埗鍣ㄥ拰PHY榪炴帴鑷沖唴鏍革紝浣垮叾鑳藉楂樻晥璁塊棶鐗囧闃靛垪銆傜被浼肩殑錛孭CI Express?(PCIe?)IP鑷姩渚嬪寲錛岃繛鎺ヨ嚦鍐呮牳錛岃繖鏍鳳紝x86涓繪満鑳藉閫氳繃OpenCLAPI涓嶧PGA鍔犻熷櫒榪涜閫氫俊銆?/p>

鍦‵PGA涓婂疄鐜癘penCL鏍囧噯鐨勪紭鍔?/p>

       浣跨敤OpenCL鎻忚堪鏉ュ紑鍙慒PGA璁捐錛屼笌鍩轟簬HDL璁捐鐨勪紶緇熸柟娉曠浉姣旓紝鍏鋒湁寰堝浼樺娍銆傛渶鏄捐憲鐨勪紭鍔垮鍥?鎵紺恒傚紑鍙戣蔣浠跺彲緙栫▼鍣ㄤ歡鐨勬祦紼嬩竴鑸寘鎷繘琛屾瀯鎬濄佸湪C絳夐珮綰ц璦涓綆楁硶緙栫▼錛岀劧鍚庝嬌鐢ㄨ嚜鍔ㄧ紪璇戝櫒鏉ュ緩绔嬫寚浠ゆ祦銆?/p>

       榪欎竴鏂規硶鍙互涓庝紶緇熷熀浜嶧PGA鐨勮璁℃柟娉曠浉姣斻傝繖閲岋紝璁捐浜哄憳鐨勪富瑕佸伐浣滄槸瀵圭‖浠舵寜鐓ф瘡涓懆鏈熻繘琛屾弿榪幫紝鐢ㄤ簬瀹炵幇鍏剁畻娉曘備紶緇熸祦紼嬫秹鍙婂埌寤虹珛鏁版嵁閫氳礬錛屽鍥?鎵紺猴紝閫氳繃鐘舵佹満鏉ユ帶鍒惰繖浜涙暟鎹氳礬錛屼嬌鐢ㄧ郴緇熺駭宸ュ叿(渚嬪錛孲OPCBuilder銆丳latformStudio)榪炴帴鑷沖簳灞侷P鍐呮牳錛岀敱浜庡繀欏昏婊¤凍澶栭儴鎺ュ彛甯︽潵鐨勭害鏉燂紝鍥犳錛岄渶瑕佸鐞嗘椂搴忔敹鏁涢棶棰樸侽penCL緙栬瘧鍣ㄧ殑鐩殑鏄府鍔╄璁′漢鍛樿嚜鍔ㄥ畬鎴愭墍鏈夎繖浜涙楠わ紝浣夸粬浠兘澶熼泦涓簿鍔涘畾涔夌畻娉曪紝鑰屼笉鏄噸鐐瑰叧娉ㄤ箯鍛崇殑紜歡璁捐銆備互榪欑鏂瑰紡榪涜璁捐錛岃璁′漢鍛樺緢瀹規槗縐繪鍒版柊FPGA錛屾ц兘鏇村ソ錛屽姛鑳芥洿寮猴紝榪欐槸鍥犱負OpenCL緙栬瘧鍣ㄥ皢鐩稿悓鐨勯珮綰ф弿榪拌漿鎹負嫻佹按綰匡紝浠庤屽彂鎸ヤ簡FPGA鏂板櫒浠剁殑浼樺娍銆?/span>

妗堜緥錛歁onteCarloBlack-Scholes鏂規硶

       鍦ㄩ噾铻嶅競鍦轟笂鏈閲嶈鐨勪竴涓熀鍑嗘祴璇曟柟娉曟槸閫氳繃Monte Carlo Black-Scholes鏂規硶璁$畻鏈熸潈浠鋒牸銆傝鏂規硶鍩轟簬瀵瑰簳灞傝偂紲ㄤ環鏍肩殑闅忔満浠跨湡錛屼互鍙婃暟鐧句竾涓嶅悓璺緞涓婄殑騫沖潎棰勬湡鏀剁泭銆傚浘8浠ュ浘褰㈠寲鐨勬柟寮忔樉紺轟簡榪欑被浠跨湡鐨勪竴涓緥瀛愩?/p>

       鍥?鏄劇ず浜嗚繘琛岃繖涓璁$畻鐨勯珮綰х畻娉曠粨鏋勩傞鍏堥噰鐢∕ersenne鏃嬭漿闅忔満鏁板彂鐢熷櫒鏉ュ垱寤哄潎鍖鍒嗗竷鐨勬暟鍊箋傚皢闅忔満鏁板簭鍒楅佸叆閫嗘鎬佺瘡縐瘑搴﹀嚱鏁幫紝浠ヤ駭鐢熸鎬佸垎甯冨簭鍒椼傜劧鍚庯紝浣跨敤鍑犱綍甯冩湕榪愬姩錛岃繖浜涢殢鏈烘暟鐢ㄤ簬浠跨湡鑲$エ浠鋒牸鐨勫彉鍖栥傚湪姣忎竴浠跨湡閫氳礬鐨勬渶鍚庯紝璁板綍鐪嬫定鏈熸潈鐨勬敹鐩婏紝榪涜騫沖潎鏉ヤ駭鐢熸敹鐩婇鏈熷箋傛暣涓畻娉曢氳繃澶х害300琛岀殑OpenCL浠g爜鏉ュ疄鐜幫紝鍙互浠嶧PGA縐繪鍒癈PU銆丟PU銆?/span>

 

       鍒╃敤閽堝Altera FPGA寮鍙戠殑OpenCL宸ヤ綔鍙幫紝鍙互浜х敓寰堝ソ鐨勫熀鍑嗘祴璇曠粨鏋滐紝濡傝〃1鎵紺恒備笌鐩稿簲鐨凣PU鐩告瘮錛岄潰鍚慡tratix? IV FPGA EP4SGX530鐨凮penCL宸ヤ綔鍙板湪鍚炲悙閲忎笂瓚呰繃浜咰PU鍜孏PU銆備笌鐩稿簲鐨凣PU鐩告瘮錛屽湪鎵ц鐩稿悓鐨勪唬鐮佹椂錛孎PGA瑙e喅鏂規涓嶄絾鎻愰珮浜嗗悶鍚愰噺錛屼繚瀹堜及璁★紝鍔熻椾篃鍙湁鍏朵簲鍒嗕箣涓銆傞熺巼鍜岄珮鍔熸晥鐩哥粨鍚堬紝闄嶄綆浜嗗ぇ璁$畻閲忓簲鐢ㄧ殑鍔熻楅渶姹傘?/span>

 

緇撹

       鍒╃敤FPGA涓婄殑OpenCL鏍囧噯錛屼笌鐩墠鐨勭‖浠朵綋緋葷粨鏋?CPU銆丟PU錛岀瓑)鐩告瘮錛岃兘澶熷ぇ騫呭害鎻愰珮鎬ц兘錛屽悓鏃墮檷浣庝簡鍔熻椼傛澶栵紝涓庝嬌鐢╒erilog鎴栬匳HDL絳夊簳灞傜‖浠舵弿榪拌璦(HDL)鐨勪紶緇烣PGA寮鍙戞柟娉曠浉姣旓紝浣跨敤OpenCL鏍囧噯銆佸熀浜嶧PGA鐨勬販鍚堢郴緇?CPU+FPGA)鍏鋒湁鏄庢樉鐨勪駭鍝佸強鏃墮潰甯備紭鍔褲侫ltera浜?010騫村姞鍏hronos闆嗗洟錛屼負鏍囧噯寤鴻鍋氬嚭浜嗙Н鏋佽礎鐚?/span>

鍘熸枃杞嚜錛?a >http://www.ednchina.com/ART_8800501745_19_35499_AN_a996b8f4.HTM



jackdong 2012-11-22 22:00 鍙戣〃璇勮
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