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資源簡介

這是用mpi與openmp并行計算實現蒙特卡洛算法求不規則圖形面積,其中還需用opencv進行圖像處理,拍照生成.jpg文件,注意圖片尺寸。

資源截圖

代碼片段和文件信息

#include
#include
#include
#include
#include
int?main(){
????int?comm_sz;
????int?my_rank;
????int?numsum=0;
????int?countall_count;
????int?a[440][590];
????double?xy;
????srand((unsigned)time(0));
????FILE?*fp=fopen(“1.txt““r“);
????????if(fp==NULL){
???????????printf(“open?error\n“);
???????????return?-1;
????????}
????????for(int?i=0;i<434;i++){
???????????for(int?j=0;j<578;j++){
???????????fscanf(fp“%d“&a[i][j]);
???????????}
???????????fscanf(fp“\n“);
????????}
????MPI_Init(NULLNULL);
????MPI_Comm_size(MPI_COMM_WORLD&comm_sz);
????MPI_Comm_rank(MPI_COMM_WORLD&my_rank);
????double?startfinish;
????if(my_rank!=0){
???????num=0;
???????start=MPI_Wtime();
???????MPI_Recv(&count1MPI_INT00MPI_COMM_WORLDMPI_STATUS_IGNORE);
???????srand(my_rank);
???????for(int?i=0;i???????x=(double)(433.0*rand()/RAND_MAX);?//產生0-433的隨機數
???????y=(double)(577.0*rand()/RAND_MAX);
???????if(a[(int)x][(int)y]==1)
??????????num++;
???????}
???????finish=MPI_Wtime();
???????printf(“proc?%d?>?Elapse?time?=%e?seconds\n“my_rankfinish-start);
???????MPI_Send(&num1MPI_INT00MPI_COMM_WORLD);
????}
????else{
????????printf(“please?input?the?count?of?all?point?:“);
????????scanf(“%d“&all_count);
????????count=all_count/comm_sz;
????????start=MPI_Wtime();
????????for(int?q=1;q???????????MPI_Send(&count1MPI_INTq0MPI_COMM_WORLD);
????????}
????????srand(my_rank);
????????for(int?i=0;i??????????x=(double)(433.0*rand()/RAND_MAX);?//產生0-433的隨機數
??????????y=(double)(577.0*rand()/RAND_MAX);
??????????if(a[(int)x][(int)y]==1)
?????????????sum++;
???????}
???????for(int?q=1;q??????????MPI_Recv(&num1MPI_INTq0MPI_COMM_WORLDMPI_STATUS_IGNORE);
??????????sum+=num;
???????}
???????printf(“the?count?of?point?in?the?graph:%d\n“sum);
???????printf(“the?area?is?:%lf\n“((double)sum/all_count)*400);
???????finish=MPI_Wtime();
???????printf(“proc?%d?>?Elapse?time?=%e?seconds\n“my_rankfinish-start);
???????}
???????MPI_Finalize();
???????return?0;
}














?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-01-19?23:41??蒙特卡羅求面積\
?????目錄???????????0??2019-01-19?23:41??蒙特卡羅求面積\mpi_openmp\
?????文件??????502138??2019-01-09?10:48??蒙特卡羅求面積\mpi_openmp\1.txt
?????文件???????16600??2019-01-19?23:07??蒙特卡羅求面積\mpi_openmp\mpi
?????文件????????2105??2019-01-18?10:51??蒙特卡羅求面積\mpi_openmp\mpi.c
?????文件???????16576??2019-01-19?23:09??蒙特卡羅求面積\mpi_openmp\omp
?????文件????????1265??2019-01-15?13:21??蒙特卡羅求面積\mpi_openmp\omp.c
?????目錄???????????0??2019-01-19?23:40??蒙特卡羅求面積\test\
?????文件?????3432570??2019-01-07?14:59??蒙特卡羅求面積\test\1.jpg
?????文件??????502138??2019-01-19?23:39??蒙特卡羅求面積\test\1.txt
?????文件???????11727??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeCache.txt
?????目錄???????????0??2019-01-19?23:40??蒙特卡羅求面積\test\CMakeFiles\
?????目錄???????????0??2019-01-19?23:40??蒙特卡羅求面積\test\CMakeFiles\3.5.1\
?????文件????????2002??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CMakeCCompiler.cmake
?????文件????????4556??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CMakeCXXCompiler.cmake
?????文件????????8640??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CMakeDetermineCompilerABI_C.bin
?????文件????????8656??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CMakeDetermineCompilerABI_CXX.bin
?????文件?????????402??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CMakeSystem.cmake
?????目錄???????????0??2019-01-19?23:40??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdC\
?????文件???????16423??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdC\CMakeCCompilerId.c
?????文件????????8800??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdC\a.out
?????目錄???????????0??2019-01-19?23:40??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdCXX\
?????文件???????16406??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdCXX\CMakeCXXCompilerId.cpp
?????文件????????8808??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\3.5.1\CompilerIdCXX\a.out
?????文件?????????609??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\CMakeDirectoryInformation.cmake
?????文件???????40301??2019-01-01?21:42??蒙特卡羅求面積\test\CMakeFiles\CMakeOutput.log
?????目錄???????????0??2019-01-19?23:42??蒙特卡羅求面積\test\CMakeFiles\CMakeTmp\
?????文件????????2093??2019-01-19?23:38??蒙特卡羅求面積\test\CMakeFiles\Makefile.cmake
?????文件????????3200??2019-01-19?23:38??蒙特卡羅求面積\test\CMakeFiles\Makefile2
?????文件?????????139??2019-01-19?23:38??蒙特卡羅求面積\test\CMakeFiles\TargetDirectories.txt
?????文件??????????85??2019-01-19?23:38??蒙特卡羅求面積\test\CMakeFiles\cmake.check_cache
............此處省略20個文件信息

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