请教：第三代涡识别方法Liutex的代码在linux中运行的问题
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在浪潮上将liutex程序编译成了一个独立的程序，然后发现算的很慢，256³的网格算了半个月都没有算出一个时间步文件！
请问哪位大佬能帮我指出问题或者有什么可以并行的方法？这是代码的下载地址：http://www.jhydrodynamics.com/en/download-of-liutex-code/
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真耐心啊，半个月了还能等
万一程序卡死了呢？或者进死循环了。
如果需要的时间步文件很大，也可以用小时间步写出来，后面删着很快的。出时间步好歹说明正常运行了。这一个时间步都没有，就不是是跑的慢还是没跑了。
如果时间步是这样的
0.01 0.011 0.012 0.013 ……或者这样的
0.010 0.011 0.012 0.013 ……那就这样
mkdir result mv 0.0? result或者这样
mkdir result mv 0.0?0 result通配符
？只匹配一个未知字符，不像*那样。很适合用来给文件分类。
然后把 result 带走，剩下的删了。写的密集断点续算也方便。滚来滚去……~(～o￣▽￣)～o 滚来滚去都不能让大家看出来我不是老师么 O_o
异步沟通方式(《posting style》from wiki)（下载后打开）：
https://www.jianguoyun.com/p/Dc52X2sQsLv2BRiqnKYD
提问的智慧(github在gitee的镜像)：
https://gitee.com/bestucan/How-To-Ask-Questions-The-Smart-Way/blob/master/README-zh_CN.md -
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I am a CFD machine with no emotions. Welcome to browse my Bilibili, search: seeeeeeeeeeer
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24年3月CFD课将在杭州举办 http://dyfluid.com/class.html
论坛随机不定时开放注册
如果需要我给调试算例 1）算例可公开 2）网格数少 3）确保可以跑通 -
I am a CFD machine with no emotions. Welcome to browse my Bilibili, search: seeeeeeeeeeer
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@五好青年 http://www.jhydrodynamics.com/en/download-of-liutex-code/
是这个代码么？我对liutex的计算方法不熟悉。但肯定是代码里面什么地方某个算法卡住了。
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这种期刊的代码可以直接找通讯作者交流类似的技术问题。
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https://www.cfd-china.com/topic/3499 在这里面有一个
获取某个函数的计算时间，你可以放在代码里面看看哪里的计算时间比较长，卡在哪里了。
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I am a CFD machine with no emotions. Welcome to browse my Bilibili, search: seeeeeeeeeeer
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@李东岳
目前我将cavity算例改成三维，三个方向网格相同，试算了后进行Liutex后处理。记录如下：
30^3网格 单核，Liutex处理时间：4s
35^3网格 单核，Liutex处理时间：14s
40^3网格 单核，Liutex处理时间：60s
45^3网格 单核，单核，Liutex处理时间：131s
50^3网格 Liutex处理时间：327s
55^3网格 单核，浮点溢出
58^3网格 单核，浮点溢出
60^3网格 单核，浮点溢出
70^3网格 单核，浮点溢出
80^3网格 4核并行后处理，报错300万网格以前的算例，扩大机器内存，单核处理3天了，还没出结果
I am a CFD machine with no emotions. Welcome to browse my Bilibili, search: seeeeeeeeeeer
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#include <chrono> auto start = std::chrono::steady_clock::now(); // Functions here auto end = std::chrono::steady_clock::now(); auto diff = end - start; Info<< "Calculation using " << std::chrono::duration <double, std::milli> (diff).count() << " ms" << endl;你可以用上段代码测试哪个函数运行时间比较长
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I am a CFD machine with no emotions. Welcome to browse my Bilibili, search: seeeeeeeeeeer
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@yhdthu
您好
我尝试往OF官网版本上移植，提示了一些报错，主要有：error: ‘complex’ was not declared in this scope
经过很久的折腾，发现您可能参考tensor.C文件来修改的，并且我对比了OpenFOAM低版本的tensor.C来逐个修改报错，但是始终没能解决。
可否帮忙帮忙编一个低版本的，或者给一些修改的思路
感谢dyfluid@dyfluid:~/postVersion$ wclean dyfluid@dyfluid:~/postVersion$ wmake Making dependency list for source file Liutex.C SOURCE=Liutex.C ; g++ -m64 -Dlinux64 -DWM_DP -Wall -Wextra -Wno-unused-parameter -Wold-style-cast -Wnon-virtual-dtor -O3 -DNoRepository -ftemplate-depth-100 -I/home/dyfluid/OpenFOAM/OpenFOAM-2.4.x/src/finiteVolume/lnInclude -I/home/dyfluid/OpenFOAM/OpenFOAM-2.4.x/src/meshTools/lnInclude -IlnInclude -I. -I/home/dyfluid/OpenFOAM/OpenFOAM-2.4.x/src/OpenFOAM/lnInclude -I/home/dyfluid/OpenFOAM/OpenFOAM-2.4.x/src/OSspecific/POSIX/lnInclude -fPIC -c $SOURCE -o Make/linux64GccDPOpt/Liutex.o Liutex.C: In function ‘Foam::vector getZdEVec(const tensor&)’: Liutex.C:44:18: error: ‘complex’ was not declared in this scope const Vector<complex> EVals(eigenValues(T)); ^ Liutex.C:44:25: error: template argument 1 is invalid const Vector<complex> EVals(eigenValues(T)); ^ Liutex.C:44:47: error: cannot convert ‘Foam::vector {aka Foam::Vector<double>}’ to ‘const int’ in initialization const Vector<complex> EVals(eigenValues(T)); ^ Liutex.C:46:25: error: type/value mismatch at argument 1 in template parameter list for ‘template<class Cmpt> class Foam::Vector’ const Vector<complex> standardBasis1(Zero, pTraits<complex>::one, Zero); ^ Liutex.C:46:25: note: expected a type, got ‘complex’ Liutex.C:46:42: error: ‘Zero’ was not declared in this scope const Vector<complex> standardBasis1(Zero, pTraits<complex>::one, Zero); ^ Liutex.C:46:63: error: type/value mismatch at argument 1 in template parameter list for ‘template<class PrimitiveType> class Foam::pTraits’ const Vector<complex> standardBasis1(Zero, pTraits<complex>::one, Zero); ^ Liutex.C:46:63: note: expected a type, got ‘complex’ Liutex.C:46:75: error: expression list treated as compound expression in initializer [-fpermissive] const Vector<complex> standardBasis1(Zero, pTraits<complex>::one, Zero); ^ Liutex.C:47:25: error: type/value mismatch at argument 1 in template parameter list for ‘template<class Cmpt> class Foam::Vector’ const Vector<complex> standardBasis2(Zero, Zero, pTraits<complex>::one); ^ Liutex.C:47:25: note: expected a type, got ‘complex’ Liutex.C:47:69: error: type/value mismatch at argument 1 in template parameter list for ‘template<class PrimitiveType> class Foam::pTraits’ const Vector<complex> standardBasis2(Zero, Zero, pTraits<complex>::one); ^ Liutex.C:47:69: note: expected a type, got ‘complex’ Liutex.C:47:75: error: expression list treated as compound expression in initializer [-fpermissive] const Vector<complex> standardBasis2(Zero, Zero, pTraits<complex>::one); ^ Liutex.C:48:25: error: type/value mismatch at argument 1 in template parameter list for ‘template<class Cmpt> class Foam::Vector’ const Vector<complex> EVec ^ Liutex.C:48:25: note: expected a type, got ‘complex’ Liutex.C:50:30: error: request for member ‘x’ in ‘EVals’, which is of non-class type ‘const int’ eigenVector(T, EVals.x(), standardBasis1, standardBasis2) ^ Liutex.C:53:23: error: request for member ‘x’ in ‘EVec’, which is of non-class type ‘const int’ vector EVecR(EVec.x().real(), EVec.y().real(), EVec.z().real()); ^ Liutex.C:53:40: error: request for member ‘y’ in ‘EVec’, which is of non-class type ‘const int’ vector EVecR(EVec.x().real(), EVec.y().real(), EVec.z().real()); ^ Liutex.C:53:57: error: request for member ‘z’ in ‘EVec’, which is of non-class type ‘const int’ vector EVecR(EVec.x().real(), EVec.y().real(), EVec.z().real()); ^ Liutex.C: In function ‘Foam::tensor rotation(const vector&)’: Liutex.C:62:14: error: ‘Zero’ was not declared in this scope tensor q(Zero); ^ Liutex.C: In function ‘Foam::vector liutex(const tensor&, const vector&)’: Liutex.C:100:19: error: ‘Zero’ was not declared in this scope vector liutex(Zero); ^ Liutex.C: In function ‘int main(int, char**)’: Liutex.C:156:48: error: ‘Zero’ was not declared in this scope dimensionedVector("zero", dimless, Zero) ^ Liutex.C:158:39: error: ‘Foam::volVectorField {aka class Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh>}’ has no member named ‘primitiveFieldRef’ vectorField& iLiutex = Liutex.primitiveFieldRef(); ^ Liutex.C:174:43: error: ‘Foam::volTensorField {aka class Foam::GeometricField<Foam::Tensor<double>, Foam::fvPatchField, Foam::volMesh>}’ has no member named ‘primitiveField’ const tensorField& iGradU = gradU.primitiveField(); ^ Liutex.dep:674: recipe for target 'Make/linux64GccDPOpt/Liutex.o' failed make: *** [Make/linux64GccDPOpt/Liutex.o] Error 1 dyfluid@dyfluid:~/postVersion$ -
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滚来滚去……~(～o￣▽￣)～o 滚来滚去都不能让大家看出来我不是老师么 O_o
异步沟通方式(《posting style》from wiki)（下载后打开）：
https://www.jianguoyun.com/p/Dc52X2sQsLv2BRiqnKYD
提问的智慧(github在gitee的镜像)：
https://gitee.com/bestucan/How-To-Ask-Questions-The-Smart-Way/blob/master/README-zh_CN.md -
@yhdthu 在 请教：第三代涡识别方法Liutex的代码在linux中运行的问题 中说：
@yfleung jhd上的代码有bug，且效率低，我自己重写可用。
https://cloud.tsinghua.edu.cn/d/05b0149e37904e7ca61c/你好，这个下载地址已经失效了，能否再提供一下吗，非常感谢
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1、李老师，我用
OpenFOAM-8编译了这个程序，编译过程提示有一些未使用变量，但能正常编译。Making dependency list for source file Rotex.C g++ -std=c++11 -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -O3 -DNoRepository -ftemplate-depth-100 -I/home/install/OpenFOAM/OpenFOAM-8/src/finiteVolume/lnInclude -I/home/install/OpenFOAM/OpenFOAM-8/src/meshTools/lnInclude -IlnInclude -I. -I/home/install/OpenFOAM/OpenFOAM-8/src/OpenFOAM/lnInclude -I/home/install/OpenFOAM/OpenFOAM-8/src/OSspecific/POSIX/lnInclude -fPIC -c Rotex.C -o Make/linux64GccDPInt32Opt/Rotex.o Rotex.C: In function \u2018int main(int, char**)\u2019: Rotex.C:153:20: warning: unused variable \u2018eig1c_r\u2019 [-Wunused-variable] 153 | scalar eig1c_r=-0.5*(aaaa+bbbb)-aa/3.0; | ^~~~~~~ Rotex.C:154:20: warning: unused variable \u2018eig1c_i\u2019 [-Wunused-variable] 154 | scalar eig1c_i=0.5*Foam::sqrt(scalar(3.0))*(aaaa-bbbb); | ^~~~~~~ Rotex.C:155:20: warning: unused variable \u2018eig2c_r\u2019 [-Wunused-variable] 155 | scalar eig2c_r=-0.5*(aaaa+bbbb)-aa/3.0; | ^~~~~~~ Rotex.C:156:20: warning: unused variable \u2018eig2c_i\u2019 [-Wunused-variable] 156 | scalar eig2c_i=-0.5*Foam::sqrt(scalar(3.0))*(aaaa-bbbb); | ^~~~~~~ g++ -std=c++11 -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -O3 -DNoRepository -ftemplate-depth-100 -I/home/install/OpenFOAM/OpenFOAM-8/src/finiteVolume/lnInclude -I/home/install/OpenFOAM/OpenFOAM-8/src/meshTools/lnInclude -IlnInclude -I. -I/home/install/OpenFOAM/OpenFOAM-8/src/OpenFOAM/lnInclude -I/home/install/OpenFOAM/OpenFOAM-8/src/OSspecific/POSIX/lnInclude -fPIC -fuse-ld=bfd -Xlinker --add-needed -Xlinker --no-as-needed Make/linux64GccDPInt32Opt/Rotex.o -L/home/install/OpenFOAM/OpenFOAM-8/platforms/linux64GccDPInt32Opt/lib \ -lfiniteVolume -lfvOptions -lmeshTools -lOpenFOAM -ldl \ -lm -o /home/user1/OpenFOAM/user1-8/platforms/linux64GccDPInt32Opt/bin/Rotex2、提供4个加载CDRFG脉动风的空风洞算例结果下载链接：
（1）3个算例用snappyHexMesh画的六面体网格，数量分别为9.6w，150w，364w。
（2）1个算例用fluentmeshing画的poly网格，网格数量为141w
（3）RotexCase下载链接：
链接：https://pan.baidu.com/s/1HQZkWVg2-ZKUF8SmqwkwOg
提取码：fgzl3、测试结果
（1）9.6w SHM网格算例，Rotex用单核、并行都能正常计算，单核40 s，并行20核计算用0.36 s。但用paraview看后处理结果，虽然可以看到Rotex数据，但由于Rotex输出的结果为矢量，画contour图的时候，选项找不到Rotex，但能选择Lambda2和Q画等值面图。
问题是采用Liutex如何画出三维形状的涡？
这是选择Rotex画出来的纵向截面图：
这是选择Q准则画出的涡形状：
（2）150w SHM网格算例。
Rotex并行20核计算用时127 s。（3）364w SHM网格算例。
Rotex并行20核计算用时1855 s。可以看出运行Rotex随着网格增加，运行时间是非线性增加的。（4）141w poly网格算例。
Rotex并行20核计算，报错Floating point exception，但运行Lambda2和Q画等值面图，能正常运行。Time = 9 Reading U [4] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [4] #1 Foam::sigFpe::sigHandler(int) at ??:? [4] #2 ? in "/lib64/libc.so.6" [4] #3 ? at ??:? [4] #4 __libc_start_main in "/lib64/libc.so.6" [4] #5 ? at ??:? [hpws14:21072] *** Process received signal *** [hpws14:21072] Signal: Floating point exception (8) [hpws14:21072] Signal code: (-6) [hpws14:21072] Failing at address: 0x3e800005250 [hpws14:21072] [ 0] /lib64/libc.so.6(+0x36400)[0x7fab592fb400] [hpws14:21072] [ 1] /lib64/libc.so.6(gsignal+0x37)[0x7fab592fb387] [hpws14:21072] [ 2] /lib64/libc.so.6(+0x36400)[0x7fab592fb400] [hpws14:21072] [ 3] Rotex[0x4136e0] [hpws14:21072] [ 4] /lib64/libc.so.6(__libc_start_main+0xf5)[0x7fab592e7555] [hpws14:21072] [ 5] Rotex[0x4146f0] [hpws14:21072] *** End of error message *** [9] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [9] #1 Foam::sigFpe::sigHandler(int) at ??:? [9] #2 ? in "/lib64/libc.so.6" [9] #3 ? at ??:? [9] #4 __libc_start_main in "/lib64/libc.so.6" [9] #5 ? at ??:? [hpws14:21077] *** Process received signal *** [hpws14:21077] Signal: Floating point exception (8) [hpws14:21077] Signal code: (-6) [hpws14:21077] Failing at address: 0x3e800005255 [hpws14:21077] [ 0] /lib64/libc.so.6(+0x36400)[0x7f02ac8ea400] [hpws14:21077] [ 1] /lib64/libc.so.6(gsignal+0x37)[0x7f02ac8ea387] [hpws14:21077] [ 2] /lib64/libc.so.6(+0x36400)[0x7f02ac8ea400] [hpws14:21077] [ 3] Rotex[0x4136e0] [hpws14:21077] [ 4] /lib64/libc.so.6(__libc_start_main+0xf5)[0x7f02ac8d6555] [hpws14:21077] [ 5] Rotex[0x4146f0] [hpws14:21077] *** End of error message *** -------------------------------------------------------------------------- Primary job terminated normally, but 1 process returned a non-zero exit code. Per user-direction, the job has been aborted. -------------------------------------------------------------------------- [6] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [6] #1 Foam::sigFpe::sigHandler(int) at ??:? [6] #2 ? in "/lib64/libc.so.6" [6] #3 ? at ??:? [6] #4 __libc_start_main-------------------------------------------------------------------------- mpirun noticed that process rank 9 with PID 0 on node hpws14 exited on signal 8 (Floating point exception). --------------------------------------------------------------------------这是poly网格选择Q准则画出的涡形状：
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@李东岳 在 请教：第三代涡识别方法Liutex的代码在linux中运行的问题 中说：
你用calculator做一个计算器，计算Liutex的mag，然后做等值面图可以么。
这个可能要看一下liutex的sci的定义，看是不是通过这个方法来进行的。
李老师，我看了刘老师的论文（刘超群, Liutex-涡定义和第三代涡识别方法. 空气动力学学报, 2020. 038(003): 第413-431,478页.），里边提到以下几点：
- Liutex算出的是一个矢量，而Q是标量。
2.文章中提到Liutex为基础的几个涡识别方法，其中之一就是可以用计算mag来画等值面，但这个时候又需要指定阈值：
3.用paraview计算9.6w 网格的算例的
mag(Rotex)，阈值分别取不同结果如下。Liutex采用幅值等值面因此会存在跟用Q准则一样指定阈值的问题，但根据论文意思是此时画出的等值面和Liutex向量线是大致平行的。
（1）mag(Rotex)=0.1结果
（2）mag(Rotex)=0.5结果
（3）mag(Rotex)=2结果
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