Multi parallel
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Next level? Start right away by downloading BlueStacks on your PC or Mac. How to Download and Run Multi Parallel: Multi Accounts on PC or Mac Download and install BlueStacks on your PC or MacComplete Google sign-in to access the Play Store, or do it laterLook for Multi Parallel: Multi Accounts in the search bar at the top right cornerClick to install Multi Parallel: Multi Accounts from the search resultsComplete Google sign-in (if you skipped step 2) to install Multi Parallel: Multi AccountsClick the Multi Parallel: Multi Accounts icon on the home screen to start playingWatch VideoOperating SystemMicrosoft Windows 7 or above, macOS 11 (Big Sur) or aboveProcessorIntel, AMD or Apple Silicon ProcessorRAMat least 4GBHDD10GB Free Disk SpaceNote:* You must be an Administrator on your PC. Up to date graphics drivers from Microsoft or the chipset vendor.Multi Parallel: Multi Accounts - FAQsHow to Run Multi Parallel: Multi Accounts on Windows PC & Mac?Run Multi Parallel: Multi Accounts on your PC or Mac by following these simple steps. Click on ‘Download Multi Parallel: Multi Accounts on PC’ to download BlueStacks Install it and log-in to Google Play Store Launch and run the app. Why is BlueStacks the fastest and safest platform to play games on PC?BlueStacks respects your privacy and is always safe and secure to use. It does not carry any malware, spyware, or any sort of additional software that could harm your PC. It is engineered to optimize speed and performance for a seamless gaming experience.What are Multi Parallel: Play Store. So basically it is as if you were buying those apps straight from the google play store for a one time fee.Multi Parallel - Multiple Accounts App Clone 0/8TechnicalTitleMulti Parallel - Multiple Accounts App Clone 4.0.22.0917 for AndroidRequirementsAndroid 13.0LanguageEnglishAvailable languagesEnglishGermanRussianChinesePortugueseItalianFrenchChineseSpanishJapaneseTurkishDutchKoreanLicenseFreeLatest updateOctober 9, 2024AuthorWinterfell ApplabSHA-1172efd620cd74986199818a4df24b29a08d3ca5eFilenamemulti-parallel-dualspace-cloner-4022-68947785-86fc6286596866b5270d7ee768479efa.apkProgram available in other languagesMulti Parallel - Multiple Accounts App Clone herunterladenTélécharger Multi Parallel - Multiple Accounts App Clone下载 Multi Parallel - Multiple Accounts App CloneScaricare Multi Parallel - Multiple Accounts App ClonePobierz Multi Parallel - Multiple Accounts App CloneDescargar Multi Parallel - Multiple Accounts App CloneMulti Parallel - Multiple Accounts App Clone をダウンロードするChangelogWe don’t have any change log information yet for version 4.0.22.0917 of Multi Parallel - Multiple Accounts App Clone. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.Can you help?If you have any changelog info you can share with us, we’d love to hear from you! Head over to our Contact page and let us know.Explore apps3839Related softwareMulti Space - Multiple AccountMulti Space - Multiple Account: Improve Performance and Stability for 32-bit AppsMulti SpaceManage multiple social media accountsSuper Clone - App Cloner for Multiple AccountsSuper Clone - App Cloner For Multiple AccountsParallel Space Pro -- App ClonerHow to Use Parallel Space Pro - App Cloner in Order to Get Rid of Duplicate FilesDual Space - Multiple Accounts App ClonerEffortless Account Management with Dual SpaceParallel SpaceLBE Tech (Free)Parallel App -Dual app cloner Parallel SpaceA free program for Android, by DuoPeak Inc.OPPO Clone PhoneFree app to move your dataParallel Space - 64Bit SupportEnhance the functionality of Parallel SpaceMulti WindowEfficient Multitasking: Multi Window ReviewParallel Live SimulatorSimulate Viral Livestreams with Parallel Live SimulatorIPMessenger Clone!IPMessenger Clone! - A Wifi Network Communication AppLast updatedV2 nitro VPNSecure and User-Friendly VPN: V2nitro VPN ReviewYuzVPN - Iran VPNA free program for Android, by Yuz Developer Team.HaloVPN - Free Fast Secure VPN ProxyComprehensive Review of HaloVPN: A Free VPN SolutionNext Launcher 3D ShellNext Launcher 3D Shell - An Innovative Phone Personalization ToolAndroid System WebViewEssential Web Utility for Android DevicesAndroid AutoGoogle (FREE)Dark WebDark Web - Secure and Feature-Rich Web BrowserOvpnSpider - Free VPNFree VPN appBitTorrent- Torrent DownloadsBitTorrent Torrent Downloads - Download Movies Any Time, AnywhereAnTuTu BenchmarkA free app for Android, by AnTuTu.ChatGPT AI Chat AI FriendFree AI utility for AndroidSamsung Smart Switch MobileA free program for Android, by Samsung Electronics Co. Ltd..Multi Parallel: Multi Accounts on Windows Pc
Tools | Winterfell Applab - Clone App & Status Downloader Play on PC with BlueStacks or from our cloudRun Multi Parallel: Multi Accounts on PC or MacLet BlueStacks turn your PC, Mac, or laptop into the perfect home for Multi Parallel: Multi Accounts, a fun Tools app from Winterfell Applab – Clone App & Status Downloader.About the AppMulti Parallel: Multi Accounts by Winterfell Applab – Clone App & Status Downloader is your go-to tool for managing multiple accounts on a single device. Whether you’re doubling up on social networks or playing games with various profiles, this app makes it a breeze to switch between roles seamlessly. Expect a hassle-free experience with parallel accounts, tailored for multitaskers.App FeaturesMultiple Account Management Balance your personal and work life effortlessly. Multi Parallel allows for simultaneous use of multiple messaging, game, and social accounts, keeping them all online with just one phone.Customizable Clones Name and icon options let you personalize each account. Add extra security with the Privacy Locker feature to protect your clones.Efficient Switching With a single tap, switch between infinite accounts. Enjoy a smooth experience with low RAM and power consumption, thanks to its lightweight build.Compatibility & Support Fully supports Android 14 and works seamlessly with popular apps and Google Play Services, optimizing clone interactions.User-Friendly Design Lite Mode enhances power and memory efficiency, ensuring easy navigation and operation across all your accounts.For the best multi-account experience, subtly enjoy this app on a big screen using BlueStacks.Eager to take your app experience to the. Download Multi Parallel: Space Lite [NL] Multi Parallel: Space Lite 다운로드 [KO] Multi Parallel: Space Lite herunterladen [DE] تنزيل Multi Parallel: Space Lite [AR] Скачать Multi Parallel:Multi Parallel: Multi Accounts Mod APK
Provide the Fork/Join framework, which can recursively split a large task into multiple small tasks and assign them to multiple threads to execute concurrently. Java 8 introduces Stream API, which provides the parallel stream. Parallel stream can split a large data set into multiple small data sets, then process the small data sets in parallel, and finally merge the results of every small data set to get final result. Parallel stream is equivalent to the extension and simplification of Fork/Join framework.However, although Java is provided with parallel processing functionality, it is not easy to use. Specifically, for multi-thread programming, programmers need to consider various situations such as inter-thread task scheduling, thread communication and algorithm design, and also need to consider how to effectively segment the data so as to provide data for multiple threads in a balanced manner. One method is to split data into multiple files in advance, but this method is inefficient and inflexible; another method is to directly use the data sources like database, yet it cannot make use of the cursor to do data segmentation. As a result, the final performance is low.Compared with Java, Python performs worse, and is equivalent to having no parallel processing ability. Parallel processing of Python itself is fake, and is actually serial processing for CPU, or even slower than serial processing, and thus it is difficult to leverage the advantages of modern multi-core CPU. There is a Global Interpreter Lock in the CPython interpreter (the mainstream interpreter of Python), and this lock needs to be got ahead of executing Python code, which means that even if multiple threads of CPU work in the same time period, it is only possible to execute the code with one thread and multiple threads can only execute the code in an alternately way. Yet, since multiple-thread execution involves complex transactions such as context switching and lock mechanism processing, the performance is not improved but decreased.Since Python cannot make use of simple multi-thread parallel processing mechanism in one process, many programmers have to adopt the complicated multi-process parallel processing method. The cost and management of process itself are much more complex, and the effect of parallel processing cannot be comparable to that of multiple threads. In addition, the inter-process communication is also very complex, programmers have to give up direct communication sometimes, and use file system to transfer the aggregation result instead, which leads to Area as well as by product, which means that there will be multiple data fetching actions (result set function) at the same time, then the delayed cursor mechanism will not work. In this case, do we have to create another cursor to traverse again?No, SPL provides the multipurpose traversal mechanism, enabling us to accomplish multiple types of calculations in one traversal by creating a synchronous channel on the cursor. For example:AB1=file(“orders.txt”).cursor@t(product,area,amount)2cursor A1=A2.groups(area;max(amount))3cursor=A3.groups(product;sum(amount))4cursor=A4.select(amount>=50).total(count(1))Having created the cursor, use the cursor statement to create a channel on it, and attach operations on the channel. We can create multiple channels, if the cursor parameter is not written in the subsequent statements, it indicates the same cursor will be used.With the help of the mechanisms such as cursor, delayed cursor, and multipurpose traversal (channel), SPL can easily handle big data computing. Currently, SPL provides a variety of external storage computing functions and can meet almost all big data computing requirements, which makes SPL far superior to Java and Python.Parallel computingFor big data computing, the performance is critical. We know that parallel computing can effectively improve computing efficiency. Besides the delayed cursor and multipurpose traversal that can guarantee the performance to a certain extent, SPL provides a multi-thread parallel processing mechanism to speed up calculation. Likewise, this mechanism is easy to use.AB1=file(“orders.txt”)2fork to(4)=A1.cursor@t(area,amount;A2:4)3return B2.groups(area;sum(amount):amount)4=A2.conj().groups(area;sum(amount))The fork statement will start multiple threads to execute their own code blocks in parallel, and the number of threads is determined by the parameter following the fork. Moreover, the fork statement will assign these parameters to each thread in turn. When all threads are executed, the calculation result of each thread will be collected and concatenated for further operation.Compared with Java and Python, SPL is much more convenient while using fork to start multiple threads for parallel computing. However, such SPL code is still a bit cumbersome, especially for counting the data of common single table and, attention should also be given that it may need to change the function (from count to sum) when re-aggregating the results returned from threads. To solve this problem, SPL provides a simpler syntax: multi-cursor, which can directly generate parallel cursors.A1=file(“orders.txt”)2=A1.cursor@tm(area,amount;4)3=A2.groups(area;sum(amount):amount)Using the @m option can create parallel multi-cursor, and the subsequent usage is the same as that of single cursor, and SPL will automatically execute parallel computing and re-aggregate the results.Multipurpose traversal can also be implemented on multi-cursor.AB1=file("orders.txt").cursor@tm(area,amount;4)2cursor A1=A2.groups(area;sum(amount):amount)3cursor=A3.groups(product;sum(amount):amount)By means of simple and easy-to-use parallel computing,MULTI3WOZ: A Multilingual, Multi-Domain, Multi-Parallel
Proceedings of the 2019 International Conference on Modeling, Simulation, Optimization and Numerical Techniques (SMONT 2019)Available Online April 2019.DOI10.2991/smont-19.2019.34How to use a DOI?KeywordsSURF; parallel algorithm; feature extraction; OpenMP; CUDA; 3D reconstructionAbstractIn this paper, we proposed a parallel SURF algorithm for 3d reconstruction to solve the problem of rapid feature extraction and matching in multi-view 3d reconstruction. SURF algorithm is an effective algorithm for feature extraction. Compared with the classic SIFT algorithm for feature extraction, it has improved somewhat in speed. However, SURF algorithm is still a time-consuming process. In this paper, we improved SURF algorithm. Aiming at the time-consuming problem of feature detection and description, we proposed a parallel algorithm based on multi-core OpenMP and CUDA architecture, and apply it to three-dimensional reconstruction. The experimental results show that the proposed algorithm achieves a certain acceleration ratio under the condition of 100% accuracy compared with the original algorithm.Copyright© 2019, the Authors. Published by Atlantis Press.Open AccessThis is an open access article distributed under the CC BY-NC license ( article (PDF)Cite this articleTY - CONFAU - Suping WuAU - Bing FengPY - 2019/04DA - 2019/04TI - Parallel SURF Algorithm for 3D ReconstructionBT - Proceedings of the 2019 International Conference on Modeling, Simulation, Optimization and Numerical Techniques (SMONT 2019)PB - Atlantis PressSP - 153EP - 157SN - 1951-6851UR - - 10.2991/smont-19.2019.34ID - Wu2019/04ER -Download Multi Parallel: Multi Accounts . Android
Deep Fritz 12 – an interview with the authorThe next step in the development of Fritz is Deep Fritz 12, the new multi-processor version. We asked Frans Morsch a few questions about it.How does the development of a Deep Fritz difer from that of a "normal" Fritz?Frans Morsch: In comparison to Fritz, the development of Deep Fritz adds another level of complexity. As well as the engine itself, we have to adapt the parallel system. While we bring this up to date only with a new version of Deep Fritz, both the search and evaluation functions are in constant development.Does parallel programming pose special challenges?The adaption of the parallel system is done on several levels. On the one hand, it has to co-operate seamlessly with the search function of Fritz. On the other hand there is the adaptation to the customer’s current hardware as well as the middle-term development to be expected in this area.Which hardware does Deep Fritz support? Is there also a 64-bit version?Deep Fritz is tuned for current multi-core processors. The new dynamic scaling will also work well with the next generations of multi-core processors. Its predecessor scaled excellently with four processor cores and well with eight. This has been further improved in Deep Fritz 12 – up to 16 cores are supported.The existing 32-bit version of Deep Fritz has already been optimally tuned; a 64-bit version would not be any faster and so there will not be one. Other engines, amongst them Rybka, have only just been optimised in a 64-bit version.The playing strength has also been increased. How does that come about?For the development of the playing strength we employ new automated test methods. A few million games are played on a series of computers. This shows us precisely the efects of changes in the. Download Multi Parallel: Space Lite [NL] Multi Parallel: Space Lite 다운로드 [KO] Multi Parallel: Space Lite herunterladen [DE] تنزيل Multi Parallel: Space Lite [AR] Скачать Multi Parallel: Download Multi Clone - Parallel Space from the Play Store 3. Launch and enjoy Multi Clone - Parallel Space Multi Clone - Parallel Space APK FAQ Parallel SpaceMulti 3 WOZ: A Multilingual, Multi-Domain, Multi-Parallel
Synonyms Definition Intel® Threading Building Blocks (Intel® TBB) is a \(\textrm{ C} + +\) library for shared-memory parallel programming. Discussion Introduction Intel® Threading Building Blocks (Intel® TBB) is an open-source \(\textrm{ C}\)++ library for parallel programming of multi-core processors. It is notable as a commercially supported library for parallel programming targeting mainstream developers. It has won two “Jolt Productivity Awards.” The library has evolved since its initial release in 2006. This entry describes Intel® TBB version 3.0 released in 2010. The library supports both high-level and low-level specifications of parallel control flow. At the high level are parallel “algorithms,” similar in spirit to ISO C++’s algorithm> library. These range from simple parallel control structures such as parallel iteration to more complex subjects such as parallel sorting. The algorithms may be nested. At a slightly lower level the programmer can specify tasks,... BibliographyAcar U, Blelloch G, Blumofe R (2000) The data locality of work-stealing. In: Proceedings of 12th annual ACM symposium on parallel algorithms and architectures, SPAA ’00. Bar Harbor, Maine. ACM, New York, pp 1–12 Google Scholar Berger E, McKinley K, Blumofe R, Wilson, P (2000) Hoard: a scalable memory allocator for multithreaded applications. In: Proceedings of 9th international conference on architectural support for Programming Languages and Operating Systems, ASPLOS 2000. Cambridge, Massachusetts. ACM, New York, pp 117–128 Google Scholar Frigo M, Leiserson C, Randall K (1998) The implementation of the cilk-5 multithreaded language. In: Proceedings of the ACM SIGPLAN ‘98 conference on programming language design and implementation, PLDI ’98.Comments
Next level? Start right away by downloading BlueStacks on your PC or Mac. How to Download and Run Multi Parallel: Multi Accounts on PC or Mac Download and install BlueStacks on your PC or MacComplete Google sign-in to access the Play Store, or do it laterLook for Multi Parallel: Multi Accounts in the search bar at the top right cornerClick to install Multi Parallel: Multi Accounts from the search resultsComplete Google sign-in (if you skipped step 2) to install Multi Parallel: Multi AccountsClick the Multi Parallel: Multi Accounts icon on the home screen to start playingWatch VideoOperating SystemMicrosoft Windows 7 or above, macOS 11 (Big Sur) or aboveProcessorIntel, AMD or Apple Silicon ProcessorRAMat least 4GBHDD10GB Free Disk SpaceNote:* You must be an Administrator on your PC. Up to date graphics drivers from Microsoft or the chipset vendor.Multi Parallel: Multi Accounts - FAQsHow to Run Multi Parallel: Multi Accounts on Windows PC & Mac?Run Multi Parallel: Multi Accounts on your PC or Mac by following these simple steps. Click on ‘Download Multi Parallel: Multi Accounts on PC’ to download BlueStacks Install it and log-in to Google Play Store Launch and run the app. Why is BlueStacks the fastest and safest platform to play games on PC?BlueStacks respects your privacy and is always safe and secure to use. It does not carry any malware, spyware, or any sort of additional software that could harm your PC. It is engineered to optimize speed and performance for a seamless gaming experience.What are Multi Parallel:
2025-04-21Play Store. So basically it is as if you were buying those apps straight from the google play store for a one time fee.Multi Parallel - Multiple Accounts App Clone 0/8TechnicalTitleMulti Parallel - Multiple Accounts App Clone 4.0.22.0917 for AndroidRequirementsAndroid 13.0LanguageEnglishAvailable languagesEnglishGermanRussianChinesePortugueseItalianFrenchChineseSpanishJapaneseTurkishDutchKoreanLicenseFreeLatest updateOctober 9, 2024AuthorWinterfell ApplabSHA-1172efd620cd74986199818a4df24b29a08d3ca5eFilenamemulti-parallel-dualspace-cloner-4022-68947785-86fc6286596866b5270d7ee768479efa.apkProgram available in other languagesMulti Parallel - Multiple Accounts App Clone herunterladenTélécharger Multi Parallel - Multiple Accounts App Clone下载 Multi Parallel - Multiple Accounts App CloneScaricare Multi Parallel - Multiple Accounts App ClonePobierz Multi Parallel - Multiple Accounts App CloneDescargar Multi Parallel - Multiple Accounts App CloneMulti Parallel - Multiple Accounts App Clone をダウンロードするChangelogWe don’t have any change log information yet for version 4.0.22.0917 of Multi Parallel - Multiple Accounts App Clone. Sometimes publishers take a little while to make this information available, so please check back in a few days to see if it has been updated.Can you help?If you have any changelog info you can share with us, we’d love to hear from you! Head over to our Contact page and let us know.Explore apps3839Related softwareMulti Space - Multiple AccountMulti Space - Multiple Account: Improve Performance and Stability for 32-bit AppsMulti SpaceManage multiple social media accountsSuper Clone - App Cloner for Multiple AccountsSuper Clone - App Cloner For Multiple AccountsParallel Space Pro -- App ClonerHow to Use Parallel Space Pro - App Cloner in Order to Get Rid of Duplicate FilesDual Space - Multiple Accounts App ClonerEffortless Account Management with Dual SpaceParallel SpaceLBE Tech (Free)Parallel App -Dual app cloner Parallel SpaceA free program for Android, by DuoPeak Inc.OPPO Clone PhoneFree app to move your dataParallel Space - 64Bit SupportEnhance the functionality of Parallel SpaceMulti WindowEfficient Multitasking: Multi Window ReviewParallel Live SimulatorSimulate Viral Livestreams with Parallel Live SimulatorIPMessenger Clone!IPMessenger Clone! - A Wifi Network Communication AppLast updatedV2 nitro VPNSecure and User-Friendly VPN: V2nitro VPN ReviewYuzVPN - Iran VPNA free program for Android, by Yuz Developer Team.HaloVPN - Free Fast Secure VPN ProxyComprehensive Review of HaloVPN: A Free VPN SolutionNext Launcher 3D ShellNext Launcher 3D Shell - An Innovative Phone Personalization ToolAndroid System WebViewEssential Web Utility for Android DevicesAndroid AutoGoogle (FREE)Dark WebDark Web - Secure and Feature-Rich Web BrowserOvpnSpider - Free VPNFree VPN appBitTorrent- Torrent DownloadsBitTorrent Torrent Downloads - Download Movies Any Time, AnywhereAnTuTu BenchmarkA free app for Android, by AnTuTu.ChatGPT AI Chat AI FriendFree AI utility for AndroidSamsung Smart Switch MobileA free program for Android, by Samsung Electronics Co. Ltd..
2025-04-18Tools | Winterfell Applab - Clone App & Status Downloader Play on PC with BlueStacks or from our cloudRun Multi Parallel: Multi Accounts on PC or MacLet BlueStacks turn your PC, Mac, or laptop into the perfect home for Multi Parallel: Multi Accounts, a fun Tools app from Winterfell Applab – Clone App & Status Downloader.About the AppMulti Parallel: Multi Accounts by Winterfell Applab – Clone App & Status Downloader is your go-to tool for managing multiple accounts on a single device. Whether you’re doubling up on social networks or playing games with various profiles, this app makes it a breeze to switch between roles seamlessly. Expect a hassle-free experience with parallel accounts, tailored for multitaskers.App FeaturesMultiple Account Management Balance your personal and work life effortlessly. Multi Parallel allows for simultaneous use of multiple messaging, game, and social accounts, keeping them all online with just one phone.Customizable Clones Name and icon options let you personalize each account. Add extra security with the Privacy Locker feature to protect your clones.Efficient Switching With a single tap, switch between infinite accounts. Enjoy a smooth experience with low RAM and power consumption, thanks to its lightweight build.Compatibility & Support Fully supports Android 14 and works seamlessly with popular apps and Google Play Services, optimizing clone interactions.User-Friendly Design Lite Mode enhances power and memory efficiency, ensuring easy navigation and operation across all your accounts.For the best multi-account experience, subtly enjoy this app on a big screen using BlueStacks.Eager to take your app experience to the
2025-03-31Provide the Fork/Join framework, which can recursively split a large task into multiple small tasks and assign them to multiple threads to execute concurrently. Java 8 introduces Stream API, which provides the parallel stream. Parallel stream can split a large data set into multiple small data sets, then process the small data sets in parallel, and finally merge the results of every small data set to get final result. Parallel stream is equivalent to the extension and simplification of Fork/Join framework.However, although Java is provided with parallel processing functionality, it is not easy to use. Specifically, for multi-thread programming, programmers need to consider various situations such as inter-thread task scheduling, thread communication and algorithm design, and also need to consider how to effectively segment the data so as to provide data for multiple threads in a balanced manner. One method is to split data into multiple files in advance, but this method is inefficient and inflexible; another method is to directly use the data sources like database, yet it cannot make use of the cursor to do data segmentation. As a result, the final performance is low.Compared with Java, Python performs worse, and is equivalent to having no parallel processing ability. Parallel processing of Python itself is fake, and is actually serial processing for CPU, or even slower than serial processing, and thus it is difficult to leverage the advantages of modern multi-core CPU. There is a Global Interpreter Lock in the CPython interpreter (the mainstream interpreter of Python), and this lock needs to be got ahead of executing Python code, which means that even if multiple threads of CPU work in the same time period, it is only possible to execute the code with one thread and multiple threads can only execute the code in an alternately way. Yet, since multiple-thread execution involves complex transactions such as context switching and lock mechanism processing, the performance is not improved but decreased.Since Python cannot make use of simple multi-thread parallel processing mechanism in one process, many programmers have to adopt the complicated multi-process parallel processing method. The cost and management of process itself are much more complex, and the effect of parallel processing cannot be comparable to that of multiple threads. In addition, the inter-process communication is also very complex, programmers have to give up direct communication sometimes, and use file system to transfer the aggregation result instead, which leads to
2025-04-21Area as well as by product, which means that there will be multiple data fetching actions (result set function) at the same time, then the delayed cursor mechanism will not work. In this case, do we have to create another cursor to traverse again?No, SPL provides the multipurpose traversal mechanism, enabling us to accomplish multiple types of calculations in one traversal by creating a synchronous channel on the cursor. For example:AB1=file(“orders.txt”).cursor@t(product,area,amount)2cursor A1=A2.groups(area;max(amount))3cursor=A3.groups(product;sum(amount))4cursor=A4.select(amount>=50).total(count(1))Having created the cursor, use the cursor statement to create a channel on it, and attach operations on the channel. We can create multiple channels, if the cursor parameter is not written in the subsequent statements, it indicates the same cursor will be used.With the help of the mechanisms such as cursor, delayed cursor, and multipurpose traversal (channel), SPL can easily handle big data computing. Currently, SPL provides a variety of external storage computing functions and can meet almost all big data computing requirements, which makes SPL far superior to Java and Python.Parallel computingFor big data computing, the performance is critical. We know that parallel computing can effectively improve computing efficiency. Besides the delayed cursor and multipurpose traversal that can guarantee the performance to a certain extent, SPL provides a multi-thread parallel processing mechanism to speed up calculation. Likewise, this mechanism is easy to use.AB1=file(“orders.txt”)2fork to(4)=A1.cursor@t(area,amount;A2:4)3return B2.groups(area;sum(amount):amount)4=A2.conj().groups(area;sum(amount))The fork statement will start multiple threads to execute their own code blocks in parallel, and the number of threads is determined by the parameter following the fork. Moreover, the fork statement will assign these parameters to each thread in turn. When all threads are executed, the calculation result of each thread will be collected and concatenated for further operation.Compared with Java and Python, SPL is much more convenient while using fork to start multiple threads for parallel computing. However, such SPL code is still a bit cumbersome, especially for counting the data of common single table and, attention should also be given that it may need to change the function (from count to sum) when re-aggregating the results returned from threads. To solve this problem, SPL provides a simpler syntax: multi-cursor, which can directly generate parallel cursors.A1=file(“orders.txt”)2=A1.cursor@tm(area,amount;4)3=A2.groups(area;sum(amount):amount)Using the @m option can create parallel multi-cursor, and the subsequent usage is the same as that of single cursor, and SPL will automatically execute parallel computing and re-aggregate the results.Multipurpose traversal can also be implemented on multi-cursor.AB1=file("orders.txt").cursor@tm(area,amount;4)2cursor A1=A2.groups(area;sum(amount):amount)3cursor=A3.groups(product;sum(amount):amount)By means of simple and easy-to-use parallel computing,
2025-04-06Proceedings of the 2019 International Conference on Modeling, Simulation, Optimization and Numerical Techniques (SMONT 2019)Available Online April 2019.DOI10.2991/smont-19.2019.34How to use a DOI?KeywordsSURF; parallel algorithm; feature extraction; OpenMP; CUDA; 3D reconstructionAbstractIn this paper, we proposed a parallel SURF algorithm for 3d reconstruction to solve the problem of rapid feature extraction and matching in multi-view 3d reconstruction. SURF algorithm is an effective algorithm for feature extraction. Compared with the classic SIFT algorithm for feature extraction, it has improved somewhat in speed. However, SURF algorithm is still a time-consuming process. In this paper, we improved SURF algorithm. Aiming at the time-consuming problem of feature detection and description, we proposed a parallel algorithm based on multi-core OpenMP and CUDA architecture, and apply it to three-dimensional reconstruction. The experimental results show that the proposed algorithm achieves a certain acceleration ratio under the condition of 100% accuracy compared with the original algorithm.Copyright© 2019, the Authors. Published by Atlantis Press.Open AccessThis is an open access article distributed under the CC BY-NC license ( article (PDF)Cite this articleTY - CONFAU - Suping WuAU - Bing FengPY - 2019/04DA - 2019/04TI - Parallel SURF Algorithm for 3D ReconstructionBT - Proceedings of the 2019 International Conference on Modeling, Simulation, Optimization and Numerical Techniques (SMONT 2019)PB - Atlantis PressSP - 153EP - 157SN - 1951-6851UR - - 10.2991/smont-19.2019.34ID - Wu2019/04ER -
2025-04-17