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20201031/openmp_test/Debug/openmp_test.Build.CppClean.log 0 → 100644
c:\users\87479\source\repos\openmp_test\debug\vc142.pdb
c:\users\87479\source\repos\openmp_test\debug\vc142.idb
c:\users\87479\source\repos\openmp_test\debug\test_op.obj
c:\users\87479\source\repos\openmp_test\debug\openmp_test.pdb
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\cl.command.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\cl.read.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\cl.write.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link-cvtres.read.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link-cvtres.write.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link-rc.read.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link-rc.write.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link.command.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link.read.1.tlog
c:\users\87479\source\repos\openmp_test\debug\openmp_test.tlog\link.write.1.tlog
20201031/openmp_test/Debug/openmp_test.exe.recipe 0 → 100644
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\ No newline at end of file
20201031/openmp_test/Debug/openmp_test.log 0 → 100644
 test_op.cpp
C:\Users\87479\source\repos\openmp_test\test_op.cpp(51,30): warning C4244: “+=”: 从“double”转换到“long”，可能丢失数据
C:\Users\87479\source\repos\openmp_test\test_op.cpp(61,1): warning C4326: “main”的返回类型应为“int”而非“long”
openmp_test.vcxproj -> C:\Users\87479\source\repos\openmp_test\Debug\openmp_test.exe
20201031/openmp_test/Debug/openmp_test.tlog/openmp_test.lastbuildstate 0 → 100644
PlatformToolSet=v142:VCToolArchitecture=Native32Bit:VCToolsVersion=14.27.29110:TargetPlatformVersion=10.0.18362.0:
Debug|Win32|C:\Users\87479\source\repos\openmp_test\|
20201031/openmp_test/Debug/openmp_test.vcxproj.FileListAbsolute.txt 0 → 100644
C:\Users\87479\source\repos\openmp_test\Debug\openmp_test.exe
C:\Users\87479\source\repos\openmp_test\Debug\openmp_test.pdb
20201031/openmp_test/openmp_test.sln 0 → 100644

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20201031/openmp_test/openmp_test.vcxproj 0 → 100644
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20201031/openmp_test/openmp_test.vcxproj.filters 0 → 100644
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20201031/openmp_test/openmp_test.vcxproj.user 0 → 100644
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\ No newline at end of file
20201031/openmp_test/test_op.cpp 0 → 100644
#include <iostream>
#include <omp.h>
using namespace std;
// 0.pragma
void fun1()
//定义6个线程,每个线程输出"test"
{
#pragma omp parallel num_threads(6)
{
cout << "test" << endl;
}
system("pause");
}
//1.pragma for
void fun2(int a)
{
#pragma omp parallel for num_threads(6)
for (int i = 0; i < 1200000000000; i++)
{
printf("OpenMP Test, 线程编号为: %d\n", omp_get_thread_num());
a += i;
}
printf("a的值为%d", a);
system("pause");
}
class blog
{
public:
int test(int num_thread);
};
int blog::test(int num_thread)
{
long sum = 0;
int n = 1000;
double factor = 1;
#pragma omp parallel for num_threads(num_thread) reduction(+:sum) private(factor)
for (int i = 0; i < n; i++)
{
if (i % 2 == 0)
factor = 1.0;
else
{
factor = -1.0;
};
sum += factor / (2 * i + 1);
}
return sum;
}
//sections & section
//section语句是用在sections语句里用来将sections语句里的代码划分成几个不同的段，每段都并行执行。
long main()
{
blog t;
t.test(4);
cout << "result" << t.test(4) << endl;
}
\ No newline at end of file
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