I may not have provided the complete information but i have checked and my CPU has 64 available cores that could be used.
Anyways, can you please suggest me how do i download LINUX OS on my desktop which is currently running on windows?
If you have 64 cores locally, you can try using SMP with 64 threads.
If you want to use DMP, you need to switch to Linux.
Support for installing Linux is outside the scope of this forum. We suggest Ubuntu Linux for beginners. See for example Install Ubuntu desktop | Ubuntu
1 Like
If you are running an SMP solver, the run popup should show you the number of SMP threads available, as in this screenshot:
If you have 64 that will say ‘64 cores avilable locally’ and you can set the number of threads to 64.
Yes @cgw , I am using DEM modelling and so i am planning to install LINUX OS. Thanks a lot for the reply.
Also, I have few other queries.
- What is SMP solver?
- Can I use windows and still select no of threads for TFM modelling?
- Is LINUX Os the only way to select no of threads for DEM modelling/
I hope if you could provide more clarity.
Also, I am attaching a screenshot of TFM model i am working on and i couldn’t
find a way to select the threads.
Please try to search the forum before asking question. SMP and DMP have been discussed previously, for example here Different solver building results by using SMP and DMP - #2 by jeff.dietiker
SMP (shared-memory parallel) will allow you to use multiple threads on a single machine.
DMP (distributed memory parallel) will allow you to use multiple machines connected on a network.
SMP is supported on Windows. DMP is not.
TFM and DEM are different physics models, this is completely independent of SMP vs DMP which are different approaches to parallel computation. You can do DEM or TFM with an SMP or DMP (or serial) solver. “Serial” refers to a solver without any support for parallelism. The MFiX default solver is serial.
To use SMP on Windows you have to build a custom solver with SMP enabled. This is covered in the MFiX documentation.
I do not understand even after following the forum about how to create SMP because I have no knowledge of coding. Could you give some details?
Anyone @cgw @jeff.dietiker
Click the “Build mfix” icon (wrench) in the top toolbar.
Then select the SMP checkbox and click “Build solver”
Hello @cgw , i tried the following suggestions from you and i seem to have some difficulty. I have referred to some other forums but i really do not understand the actually cause of this error.
Could you please help me with this issue?
Running C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\python.exe -m mfixgui.build_mfixsolver -j --smp -DCMAKE_Fortran_COMPILER=gfortran
Building custom solver for newbuilder.mfx
Running cmake command:
cmake -DCMAKE_Fortran_COMPILER=gfortran -DENABLE_PYMFIX=ON -DPython3_EXECUTABLE=C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\python.exe -DPython3_ROOT_DIR=C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1 -DENABLE_OpenMP=1 -G MinGW Makefiles -DCMAKE_INSTALL_PREFIX=C:\Users\CHOP0003\Downloads\newbuilder -DUDF_DIR=C:\Users\CHOP0003\Downloads\newbuilder -DVERSION=22.2.1 C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\share\mfix\src
– Setting build type to ‘RelWithDebInfo’ as none was specified.
– MFIX build settings summary:
– Build type = RelWithDebInfo
– CMake version = 3.24.0
– Fortran compiler = gfortran
– Fortran flags =
– ENABLE_MPI = OFF
– ENABLE_OpenMP = 1
– ENABLE_CTEST = OFF
– ENABLE_COVERAGE = OFF
– The C compiler identification is GNU 5.3.0
– The Fortran compiler identification is unknown
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Check for working C compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/cc.exe - skipped
– Detecting C compile features
– Detecting C compile features - done
– Detecting Fortran compiler ABI info
– Detecting Fortran compiler ABI info - failed
– Check for working Fortran compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe
– Check for working Fortran compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe - broken
CMake Error at C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/share/cmake-3.24/Modules/CMakeTestFortranCompiler.cmake:61 (message):
The Fortran compiler
"C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: C:/Users/CHOP0003/Downloads/newbuilder/build/CMakeFiles/CMakeTmp
Run Build Command(s):C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/mingw32-make.exe -f Makefile cmTC_e547c/fast && C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/mingw32-make.exe -f CMakeFiles\cmTC_e547c.dir\build.make CMakeFiles/cmTC_e547c.dir/build
mingw32-make.exe[1]: Entering directory 'C:/Users/CHOP0003/Downloads/newbuilder/build/CMakeFiles/CMakeTmp'
Building Fortran object CMakeFiles/cmTC_e547c.dir/testFortranCompiler.f.obj
C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\Library\mingw-w64\bin\gfortran.exe -c C:\Users\CHOP0003\Downloads\newbuilder\build\CMakeFiles\CMakeTmp\testFortranCompiler.f -o CMakeFiles\cmTC_e547c.dir\testFortranCompiler.f.obj
<built-in>: internal compiler error: Segmentation fault
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://sourceforge.net/projects/msys2> for instructions.
CMakeFiles\cmTC_e547c.dir\build.make:76: recipe for target 'CMakeFiles/cmTC_e547c.dir/testFortranCompiler.f.obj' failed
mingw32-make.exe[1]: *** [CMakeFiles/cmTC_e547c.dir/testFortranCompiler.f.obj] Error 1
mingw32-make.exe[1]: Leaving directory 'C:/Users/CHOP0003/Downloads/newbuilder/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_e547c/fast' failed
mingw32-make.exe: *** [cmTC_e547c/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:20 (project)
– Configuring incomplete, errors occurred!
See also “C:/Users/CHOP0003/Downloads/newbuilder/build/CMakeFiles/CMakeOutput.log”.
See also “C:/Users/CHOP0003/Downloads/newbuilder/build/CMakeFiles/CMakeError.log”.
BUILD FAILED
==========================================================================
This is an unusual error. The gfortran comes from the Anaconda distribution and we expect it to work. This is the first report I’ve seen where it fails.
“Internal compiler error” problems like this can be due to faulty installation, disks filling up, or even hardware issues like faulty RAM. Can you try on a different machine?
Yes i tried on my other desktop and its the same error.
Running C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\python.exe -m mfixgui.build_mfixsolver -j --smp -DCMAKE_Fortran_COMPILER=gfortran
Building custom solver for buildsolver.mfx
Running cmake command:
cmake -DCMAKE_Fortran_COMPILER=gfortran -DENABLE_PYMFIX=ON -DPython3_EXECUTABLE=C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\python.exe -DPython3_ROOT_DIR=C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1 -DENABLE_OpenMP=1 -G MinGW Makefiles -DCMAKE_INSTALL_PREFIX=C:\Users\CHOP0003\Downloads\buildsolver -DUDF_DIR=C:\Users\CHOP0003\Downloads\buildsolver -DVERSION=22.2.1 C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\share\mfix\src
– Setting build type to ‘RelWithDebInfo’ as none was specified.
– MFIX build settings summary:
– Build type = RelWithDebInfo
– CMake version = 3.24.0
– Fortran compiler = gfortran
– Fortran flags =
– ENABLE_MPI = OFF
– ENABLE_OpenMP = 1
– ENABLE_CTEST = OFF
– ENABLE_COVERAGE = OFF
– The C compiler identification is GNU 5.3.0
– The Fortran compiler identification is unknown
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Check for working C compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/cc.exe - skipped
– Detecting C compile features
– Detecting C compile features - done
– Detecting Fortran compiler ABI info
– Detecting Fortran compiler ABI info - failed
– Check for working Fortran compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe
– Check for working Fortran compiler: C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe - broken
CMake Error at C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/share/cmake-3.24/Modules/CMakeTestFortranCompiler.cmake:61 (message):
The Fortran compiler
"C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: C:/Users/CHOP0003/Downloads/buildsolver/build/CMakeFiles/CMakeTmp
Run Build Command(s):C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/mingw32-make.exe -f Makefile cmTC_18538/fast && C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/mingw32-make.exe -f CMakeFiles\cmTC_18538.dir\build.make CMakeFiles/cmTC_18538.dir/build
mingw32-make.exe[1]: Entering directory 'C:/Users/CHOP0003/Downloads/buildsolver/build/CMakeFiles/CMakeTmp'
Building Fortran object CMakeFiles/cmTC_18538.dir/testFortranCompiler.f.obj
C:\Users\CHOP0003\Anaconda3\envs\mfix-22.2.1\Library\mingw-w64\bin\gfortran.exe -c C:\Users\CHOP0003\Downloads\buildsolver\build\CMakeFiles\CMakeTmp\testFortranCompiler.f -o CMakeFiles\cmTC_18538.dir\testFortranCompiler.f.obj
<built-in>: internal compiler error: Segmentation fault
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://sourceforge.net/projects/msys2> for instructions.
CMakeFiles\cmTC_18538.dir\build.make:76: recipe for target 'CMakeFiles/cmTC_18538.dir/testFortranCompiler.f.obj' failed
mingw32-make.exe[1]: *** [CMakeFiles/cmTC_18538.dir/testFortranCompiler.f.obj] Error 1
mingw32-make.exe[1]: Leaving directory 'C:/Users/CHOP0003/Downloads/buildsolver/build/CMakeFiles/CMakeTmp'
Makefile:126: recipe for target 'cmTC_18538/fast' failed
mingw32-make.exe: *** [cmTC_18538/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:20 (project)
– Configuring incomplete, errors occurred!
See also “C:/Users/CHOP0003/Downloads/buildsolver/build/CMakeFiles/CMakeOutput.log”.
See also “C:/Users/CHOP0003/Downloads/buildsolver/build/CMakeFiles/CMakeError.log”.
BUILD FAILED
==========================================================================
Hello @cgw , I have responded to your query. The issue is recurring. I have tried on several computers and the issue still exists in all. This make me wonder if it is a system error or if it is something that ought to be fixed from MFIX because I don’t think all the computer systems I have tried upon have a common issue like faulty RAM, filled disc memory or something else.
Also, I am wondering that I use university computer and do you think there is something that is causing this issue maybe something like security issue or some kind of malware protection from university’s end is causing this to happen because it is happening in all university computer.
I am attaching a bug report of the same for your reference.
buildsolver_2022-09-21T105001.816402.zip (8.3 KB)
buildsolver_2022-09-21T105047.377617.zip (8.3 KB)
I hope you could resolve it.
The errors you are seeing have nothing to do with MFiX.
We use the Anaconda distribution as an easy way to make sure all prerequisite packages are installed, including the Fortran compiler. We do not support the Fortran compiler at all.
Please check your Anaconda installation, or seek help on the Anaconda forums, or try to get help from you university computer people. We cannot fix this problem for you. I have never seen this error before, I don’t know what’s causing it, and I can’t reproduce it. Sorry.
I suggest creating a small “Hello world” program in Fortran and see if you can get that to compile with gfortran, using a command like gfortran -o test.exe test.f
1 Like
Hello @cgw , thanks for your reply. I have a doubt, when you say Fortran, you mean it is automatically installed in my system, is it?. I am sorry, I have no idea on programming languages nor do i understand your last message.
I can seek professional help who could understand the issue, but i am right now not understanding what should be my plan of action.
Is it that i do not have a Fortran installed in my windows or if it comes with the package, where do i find it?
I hope if you could reply me in layman easy language which i can understand. I am a mechanical engineer with no background at all using any language .
GFortran is a compiler for the programming language Fortran. MFiX is written in Fortran. You do not need a Fortran compiler to run MFiX with the default pre-build solver, but if you modify the solver, or enable feature like SMP, you have to recompile it, which requires use of a Fortran compiler.
GFortran is not produced by us. It is produced by the GNU project, who make a lot of free software.
Anaconda is a package that includes a lot of free software, including GFortran.
The messages you pasted say
The Fortran compiler
"C:/Users/CHOP0003/Anaconda3/envs/mfix-22.2.1/Library/mingw-w64/bin/gfortran.exe"
is not able to compile a simple test program.
So there is something wrong with the GFortran installation, which comes from Anaconda.
I cannot provide further assistance. Please try to find somebody local who can help you.
1 Like
Also, I have planned to install MFIX on a different desktop which is not at all protected by university. Through this i plan to check if some kind of university protection is causing it not work.