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代碼片段和文件信息

//?This?file?is?part?of?Eigen?a?lightweight?C++?template?library
//?for?linear?algebra.
//
//?Copyright?(C)?2013?Gauthier?Brun?
//?Copyright?(C)?2013?Nicolas?Carre?
//?Copyright?(C)?2013?Jean?Ceccato?
//?Copyright?(C)?2013?Pierre?Zoppitelli?
//
//?This?Source?Code?Form?is?subject?to?the?terms?of?the?Mozilla
//?Public?License?v.?2.0.?If?a?copy?of?the?MPL?was?not?distributed
//?with?this?file?You?can?obtain?one?at?http://mozilla.org/MPL/2.0/

//?Bench?to?compare?the?efficiency?of?SVD?algorithms

#include?
#include?
#include?


using?namespace?Eigen;
using?namespace?std;

//?number?of?computations?of?each?algorithm?before?the?print?of?the?time
#ifndef?REPEAT
#define?REPEAT?10
#endif

//?number?of?tests?of?the?same?type
#ifndef?NUMBER_SAMPLE
#define?NUMBER_SAMPLE?2
#endif

template
void?bench_svd(const?MatrixType&?a?=?MatrixType())
{
??MatrixType?m?=?MatrixType::Random(a.rows()?a.cols());
??BenchTimer?timerJacobi;
??BenchTimer?timerBDC;
??timerJacobi.reset();
??timerBDC.reset();

??cout?<??for?(int?k=1;?k<=NUMBER_SAMPLE;?++k)
??{
????timerBDC.start();
????for?(int?i=0;?i????{
??????BDCSVD?bdc_matrix(m);
????}
????timerBDC.stop();
????
????timerJacobi.start();
????for?(int?i=0;?i????{
??????JacobiSVD?jacobi_matrix(m);
????}
????timerJacobi.stop();


????cout?<????cout?<??????
????if?(timerBDC.value()?>=?timerJacobi.value())??
??????cout?<????else?
??????cout?<??????
??}
??cout?<??std::cout<??timerJacobi.reset();
??timerBDC.reset();
??cout?<??for?(int?k=1;?k<=NUMBER_SAMPLE;?++k)
??{
????timerBDC.start();
????for?(int?i=0;?i????{
??????BDCSVD?bdc_matrix(m?ComputeFullU|ComputeFullV);
????}
????timerBDC.stop();
????
????timerJacobi.start();
????for?(int?i=0;?i????{
??????JacobiSVD?jacobi_matrix(m?ComputeFullU|ComputeFullV);
????}
????timerJacobi.stop();


????cout?<????cout?<??????
????if?(timerBDC.value()?>=?timerJacobi.value())??
??????cout?<????else?
??????cout?<

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-01-23?18:02??VisualSFM_cmvs64bit\
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\
?????文件????15387302??2019-01-23?17:55??VisualSFM_cmvs64bit\CMVS-PMVS-master.zip
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\mac_osx_fat\
?????文件?????3758828??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\mac_osx_fat\cmvs
?????文件???????44844??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\mac_osx_fat\genOption
?????文件?????4678332??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\mac_osx_fat\pmvs2
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\OutputLinux32-gcc4.4.1\
?????文件??????947776??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\OutputLinux32-gcc4.4.1\cmvs
?????文件???????30706??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\OutputLinux32-gcc4.4.1\genOption
?????文件?????1305554??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\OutputLinux32-gcc4.4.1\pmvs2
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win32-VS2010\
?????文件??????987648??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win32-VS2010\cmvs.exe
?????文件???????28160??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win32-VS2010\genOption.exe
?????文件?????1396736??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win32-VS2010\pmvs2.exe
?????文件????????2174??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win32-VS2010\Readme.txt
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\
?????文件?????1161728??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\cmvs.exe
?????文件???????33280??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\genOption.exe
?????文件??????607568??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\msvcp100.dll
?????文件??????827728??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\msvcr100.dll
?????文件?????1678336??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\pmvs2.exe
?????文件????????2174??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\Readme.txt
?????文件??????296448??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\binariesWin-Linux\Win64-VS2010\ws2_32.dll
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\license\
?????文件??????????36??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\license\GPL.readme
?????文件????????1997??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\license\libgfx-license.html
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\program\
?????目錄???????????0??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\program\base\
?????文件?????????136??2017-01-28?04:38??VisualSFM_cmvs64bit\CMVS-PMVS-master\program\base\CMakeLists.txt
............此處省略3556個文件信息

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