Issue with running the following files. I downloaded biharmonic.ufl , main.cpp and cmakelist.txt from dolfin documentation. I did cmake but after doing make I face the error which is given below

1

ravina@ravina:~/Downloads$ cd biharmonic/
ravina@ravina:~/Downloads/biharmonic$ cmake .
– The C compiler identification is GNU 7.4.0
– The CXX compiler identification is GNU 7.4.0
– Check for working C compiler: /usr/bin/cc
– Check for working C compiler: /usr/bin/cc – works
– Detecting C compiler ABI info
– Detecting C compiler ABI info - done
– Detecting C compile features
– Detecting C compile features - done
– Check for working CXX compiler: /usr/bin/c++
– Check for working CXX compiler: /usr/bin/c++ – works
– Detecting CXX compiler ABI info
– Detecting CXX compiler ABI info - done
– Detecting CXX compile features
– Detecting CXX compile features - done
CMake Deprecation Warning at CMakeLists.txt:15 (cmake_policy):
The OLD behavior for policy CMP0028 will be removed from a future version
of CMake.

The cmake-policies(7) manual explains that the OLD behaviors of all
policies are deprecated and that a policy should be set to OLD only under
specific short-term circumstances. Projects should be ported to the NEW
behavior and not rely on setting a policy to OLD.

– Configuring done
– Generating done
– Build files have been written to: /home/ravina/Downloads/biharmonic
ravina@ravina:~/Downloads/biharmonic$ make
Scanning dependencies of target demo_biharmonic
[ 50%] Building CXX object CMakeFiles/demo_biharmonic.dir/main.cpp.o
In file included from /usr/include/dolfin/common/dolfin_common.h:9:0,
from /usr/include/dolfin.h:6,
from /home/ravina/Downloads/biharmonic/main.cpp:2:
/usr/include/dolfin/common/types.h:24:10: fatal error: petscsys.h: No such file or directory
#include <petscsys.h>
^~~~~~~~~~~~
compilation terminated.
CMakeFiles/demo_biharmonic.dir/build.make:62: recipe for target ‘CMakeFiles/demo_biharmonic.dir/main.cpp.o’ failed
make[2]: *** [CMakeFiles/demo_biharmonic.dir/main.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target ‘CMakeFiles/demo_biharmonic.dir/all’ failed
make[1]: *** [CMakeFiles/demo_biharmonic.dir/all] Error 2
Makefile:83: recipe for target ‘all’ failed
make: *** [all] Error 2
ravina@ravina:~/Downloads/biharmonic$

2

Looks like either you don’t have PETSc installed, or you haven’t set your PETSC_DIR or make is failing to find PETSc in your include directories.

3

My PETsc is in /usr/lib/petscdir/37.7/x86_64_linux-gnu-real/include/petsc. but the same errror I found. Kindly help me regarding the same. Thanku.

4

Then you need to carefully go over your compilation process and make sure each stage is linking correctly and PETSc is discoverable by cmake/make.

5

I did this but didn’t get the result. I discussed this with other people also but they also were not able to do it.