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  • 大小: 4.49MB
    文件類型: .zip
    金幣: 2
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    發布日期: 2023-10-21
  • 語言: 其他
  • 標簽: C++??

資源簡介

本資源來自于eigen官方網站下載,可以用于矩陣運算,本人在自己的軟件工程中,應用成功。

資源截圖

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)?2015?Benoit?Jacob?
//
//?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/.

#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

#include?

using?namespace?std;

const?int?default_precision?=?4;

//?see?--only-cubic-sizes
bool?only_cubic_sizes?=?false;

//?see?--dump-tables
bool?dump_tables?=?false;

uint8_t?log2_pot(size_t?x)?{
??size_t?l?=?0;
??while?(x?>>=?1)?l++;
??return?l;
}

uint16_t?compact_size_triple(size_t?k?size_t?m?size_t?n)
{
??return?(log2_pot(k)?<}

//?just?a?helper?to?store?a?triple?of?KMN?sizes?for?matrix?product
struct?size_triple_t
{
??uint16_t?k?m?n;
??size_triple_t()?:?k(0)?m(0)?n(0)?{}
??size_triple_t(size_t?_k?size_t?_m?size_t?_n)?:?k(_k)?m(_m)?n(_n)?{}
??size_triple_t(const?size_triple_t&?o)?:?k(o.k)?m(o.m)?n(o.n)?{}
??size_triple_t(uint16_t?compact)
??{
????k?=?1?<>?8);
????m?=?1?<>?4);
????n?=?1?<>?0);
??}
??bool?is_cubic()?const?{?return?k?==?m?&&?m?==?n;?}
};

ostream&?operator<<(ostream&?s?const?size_triple_t&?t)
{
??return?s?<}

struct?inputfile_entry_t
{
??uint16_t?product_size;
??uint16_t?pot_block_size;
??size_triple_t?nonpot_block_size;
??float?gflops;
};

struct?inputfile_t
{
??enum?class?type_t?{
????unknown
????all_pot_sizes
????default_sizes
??};

??string?filename;
??vector?entries;
??type_t?type;

??inputfile_t(const?string&?fname)
????:?filename(fname)
?????type(type_t::unknown)
??{
????ifstream?stream(filename);
????if?(!stream.is_open())?{
??????cerr?<??????exit(1);
????}
????string?line;
????while?(getline(stream?line))?{
??????if?(line.empty())?continue;
??????if?(line.find(“BEGIN?MEASUREMENTS?ALL?POT?SIZES“)?==?0)?{
????????if?(type?!=?type_t::unknown)?{
??????????cerr?<??????????exit(1);
????????}
????????type?=?type_t::all_pot_sizes;
????????continue;
??????}
??????if?(line.find(“BEGIN?MEASUREMENTS?DEFAULT?SIZES“)?==?0)?{
????????if?(type?!=?type_t::unknown)?{
??????????cerr?<??????????exit(1);
????????}
????????type?=?type_t::default_sizes;
????????continue;
??????}
??????

??????if?(type?==?type_t::unknown)?{
????????continue;
??????}
??????switch(type)?{
????????case?type_t::all_pot_sizes:?{
??????????unsigned?int?product_size?block_size;
??????????float?gf

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-07-03?10:22??eigen庫\eigen\
?????文件?????????117??2018-12-12?01:57??eigen庫\eigen\.hg_archival.txt
?????文件?????????180??2018-12-12?01:57??eigen庫\eigen\.hgeol
?????文件?????????244??2018-12-12?01:57??eigen庫\eigen\.hgignore
?????文件????????1844??2018-12-12?01:57??eigen庫\eigen\.hgtags
?????目錄???????????0??2019-07-03?10:22??eigen庫\eigen\bench\
?????文件???????28983??2018-12-12?01:57??eigen庫\eigen\bench\analyze-blocking-sizes.cpp
?????文件????????1421??2018-12-12?01:57??eigen庫\eigen\bench\basicbench.cxxlist
?????文件????????1107??2018-12-12?01:57??eigen庫\eigen\bench\basicbenchmark.cpp
?????文件????????1669??2018-12-12?01:57??eigen庫\eigen\bench\basicbenchmark.h
?????文件???????10821??2018-12-12?01:57??eigen庫\eigen\bench\bench_gemm.cpp
?????文件?????????618??2018-12-12?01:57??eigen庫\eigen\bench\bench_multi_compilers.sh
?????文件???????11652??2018-12-12?01:57??eigen庫\eigen\bench\bench_norm.cpp
?????文件????????2159??2018-12-12?01:57??eigen庫\eigen\bench\bench_reverse.cpp
?????文件?????????320??2018-12-12?01:57??eigen庫\eigen\bench\bench_sum.cpp
?????文件?????????651??2018-12-12?01:57??eigen庫\eigen\bench\bench_unrolling
?????文件????????6313??2018-12-12?01:57??eigen庫\eigen\bench\benchBlasGemm.cpp
?????文件????????3534??2018-12-12?01:57??eigen庫\eigen\bench\benchCholesky.cpp
?????文件????????5788??2018-12-12?01:57??eigen庫\eigen\bench\benchEigenSolver.cpp
?????文件????????2806??2018-12-12?01:57??eigen庫\eigen\bench\benchFFT.cpp
?????文件????????3598??2018-12-12?01:57??eigen庫\eigen\bench\benchGeometry.cpp
?????文件?????????790??2018-12-12?01:57??eigen庫\eigen\bench\benchmark.cpp
?????文件????????1209??2018-12-12?01:57??eigen庫\eigen\bench\benchmark_suite
?????文件???????22259??2018-12-12?01:57??eigen庫\eigen\bench\benchmark-blocking-sizes.cpp
?????文件?????????835??2018-12-12?01:57??eigen庫\eigen\bench\benchmarkSlice.cpp
?????文件?????????640??2018-12-12?01:57??eigen庫\eigen\bench\benchmarkX.cpp
?????文件?????????605??2018-12-12?01:57??eigen庫\eigen\bench\benchmarkXcwise.cpp
?????文件????????3932??2018-12-12?01:57??eigen庫\eigen\bench\BenchSparseUtil.h
?????文件????????4392??2018-12-12?01:57??eigen庫\eigen\bench\BenchTimer.h
?????文件????????2529??2018-12-12?01:57??eigen庫\eigen\bench\BenchUtil.h
?????文件????????5193??2018-12-12?01:57??eigen庫\eigen\bench\benchVecAdd.cpp
............此處省略1706個文件信息

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