[chandra shekhar pant]

Hello All,

For the last 1.5 years I have using OpenFOAM v1906, but suddenly 2-3 days back, when I tried to run some tutorial case, it was giving me error regarding the missing controlDict, I tried to search that error and found that some files have been deleted by me accidentally. So I tried to install the OpenFOAM v2012 in my machine, but it was giving me error which says:

    ld: /home/csp/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/lib/libOSspecific.o
wmake  dummy (mpi=SYSTEMOPENMPI)
wmake dummy
    ln: ./lnInclude
    dep: UOPwrite.C
    dep: UIPread.C
    dep: UPstream.C
    Ctoo: UPstream.C
    Ctoo: UIPread.C
    Ctoo: UOPwrite.C
    ld: /home/csp/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/lib/dummy/libPstream.so
wmake  mpi (mpi=SYSTEMOPENMPI:sys-openmpi)
wmake mpi
    ln: ./lnInclude
    dep: PstreamGlobals.C
    dep: UPstream.C
    dep: UIPread.C
    dep: UOPwrite.C
    Ctoo: UOPwrite.C
    Ctoo: UIPread.C
    Ctoo: UPstream.C
    Ctoo: PstreamGlobals.C
    ld: /home/csp/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/lib/sys-openmpi/libPstream.so
/usr/bin/ld: cannot find -lmpi
collect2: error: ld returned 1 exit status
make: *** [/home/csp/OpenFOAM/OpenFOAM-v2012/wmake/makefiles/general:184: /home/csp/OpenFOAM/OpenFOAM-v2012/platforms/linux64GccDPInt32Opt/lib/sys-openmpi/libPstream.so] Error 1
Done logging to 'log.linux64GccDPInt32Opt'

I even tried to install the previous working of OpenFOAM v1906 but again it is complaining about the "-lmpi". I tried to search this problem for around 2-3 days but could not get anything. Could anyone kindly help me with this problem ?

[olesen]

Can't remember the exact detail (you'll need to search the forum) but there was a weird issue with the mpi dev package on Ubuntu that oddly didn't show on fresh docker installs. Uninstall mpi (while allowing dependent packages to be broken) and then reinstall. Seemed to be something funny with the mpi post-install triggers not being properly triggered.
I know this sounds really dodgy, but that's what I remember. Might also have been on the develop.openfoam.com issue tracker about a year back.

[chandra shekhar pant]

Hi Mark Olesen, Many thanks for your help and reply. You are absolutely correct about the MPI issues, what I have done now:
1. Updated Ubuntu to the latest version
2. Earlier I was not using "Third Party" folder, now I am using this also.

Doing these two I am able to install the OpenFOAM v1906. But don't know what is the real issue. I have done the things more brutally and mechanically. If some thing don't work for me, I usually do "on" - "off"

[olesen]

Originally Posted by chandra shekhar pant

Hi Mark Olesen, Many thanks for your help and reply. You are absolutely correct about the MPI issues, what I have done now:
1. Updated Ubuntu to the latest version
2. Earlier I was not using "Third Party" folder, now I am using this also.

Doing these two I am able to install the OpenFOAM v1906. But don't know what is the real issue. I have done the things more brutally and mechanically. If some thing don't work for me, I usually do "on" - "off"

It should still work properly without needing any ThirdParty. I dug a little and found the reference I was looking for (yes, just as weird as I remembered):

https://develop.openfoam.com/Develop...817#note_49023


Unless you are developing with OpenFOAM (as opposed to actually developing on the OpenFOAM code itself), you are probably just fine to use the binary packs:
https://develop.openfoam.com/Develop...ompiled/debian


EDIT: added note as "known problem" on the wiki page

[chandra shekhar pant]

Hello again Mark Olesen for your kind help. Sincerely speaking I have completely no idea about the pre-compiled version of OpenFOAM, I generally install using the source code of OpenFOAM, not sure if both are same or different. Is it more convenient to use OpenFOAM through pre-compiled version ?

[olesen]

Originally Posted by chandra shekhar pant

Hello again Mark Olesen for your kind help. Sincerely speaking I have completely no idea about the pre-compiled version of OpenFOAM, I generally install using the source code of OpenFOAM, not sure if both are same or different. Is it more convenient to use OpenFOAM through pre-compiled version ?

The short answer: "yes" it is more convenient to install/use with precompiled versions.
The source code is identical, with the precompiled version you also get the shell session launcher, the openfoam-selector (for managing different versions) etc.


If you measure convenience in terms of "time to installation", then you should be pleasantly surprised how quickly you can install a version.
BTW: you can also install multiple versions (openfoam1912, openfoam2006, openfoam2012) without conflicts.