Hello,
my complete cmake file looks like that:
cmake_minimum_required (VERSION 3.1)
project(Preallocation)
add_executable(prealloc prealloc_parallel.cpp)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
add_compile_options(-std=c++11)
find_library(petsc petsc
PATHS $ENV{PETSC_DIR}/$ENV{PETSC_ARCH}/lib)
if(NOT petsc)
message(FATAL_ERROR "petsc was not found")
endif()
target_link_libraries(prealloc ${petsc})
find_package(Boost 1.60.0
REQUIRED
COMPONENTS program_options)
target_link_libraries(prealloc ${Boost_LIBRARIES})
find_package(MPI
REQUIRED)
target_link_libraries(prealloc ${MPI_LIBRARIES})
set(COMPILE_FLAGS ${COMPILE_FLAGS} ${MPI_COMPILE_FLAGS})
set(LINK_FLAGS ${LINK_FLAGS} ${MPI_LINK_FLAGS})
but still, cmake refused to enable c++11 support, make VERBOSE=1 shows
[ 50%] Building CXX object CMakeFiles/prealloc.dir/prealloc_parallel.cpp.o
/usr/bin/c++ -O3 -DNDEBUG -o
CMakeFiles/prealloc.dir/prealloc_parallel.cpp.o -c
/data/scratch/lindnefn/petsc_prealloc/prealloc_parallel.cpp
In file included from /usr/include/c++/5/random:35:0,
from
/data/scratch/lindnefn/petsc_prealloc/prealloc_parallel.cpp:4:
/usr/include/c++/5/bits/c++0x_warning.h:32:2: error: #error This file requires
compiler and library support for the ISO
C++ 2011 standard. This support must be enabled with the -std=c++11 or
-std=gnu++11 compiler options.
#error This file requires compiler and library support \
^
In file included from
/data/scratch/lindnefn/software/petsc/include/petscis.h:7:0,
from
/data/scratch/lindnefn/software/petsc/include/petscvec.h:9,
from
/data/scratch/lindnefn/software/petsc/include/petscmat.h:6,
from
/data/scratch/lindnefn/petsc_prealloc/prealloc_parallel.cpp:7:
/data/scratch/lindnefn/software/petsc/include/petscsys.h:130:17: fatal error:
mpi.h: No such file or directory
compilation terminated.
What is wrong here+
cmake 3.5.1
Thanks,
Florian
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