[petsc-users] Placing FindPETSc.cmake

[Evan Um]

Hi Jed,

Thanks for the comment. I added the module but still saw errors (before I
arrived here, I had to do cp - r /home/evan/petsc//lib/petsc/
conf/rules /home/evan/petsc//lib/petsc/conf/petscrules). They are supposed
to be defined by FindPETSc.cmake. How could I solve these errors?

Could you also explain a little bit about how to use pkg-config to find
PETSc? Thanks!

Evan

----------------
cmake_minimum_required(VERSION 3.10)

project(hellopetsc)
list (APPEND CMAKE_MODULE_PATH /home/evan/CLionProjects/hellopetsc)

SET(CMAKE_CXX_STANDARD 11)
SET(CMAKE_C_COMPILER mpicc)
SET(CMAKE_CXX_COMPILER mpicxx)

find_package(PETSc COMPONENTS CXX)

add_executable(hellopetsc main.cpp)
-----------------

-----------------
/home/evan/opt/clion-2018.1.2/bin/cmake/bin/cmake -DCMAKE_BUILD_TYPE=Debug
-G "CodeBlocks - Unix Makefiles" /home/evan/CLionProjects/hellopetsc
-- PETSc could not be found.  Be sure to set PETSC_DIR and PETSC_ARCH.
(missing: PETSC_INCLUDES PETSC_LIBRARIES PETSC_EXECUTABLE_RUNS) (found
version "3.9.1")
-- Configuring done
-- Generating done
-- Build files have been written to: /home/evan/CLionProjects/
hellopetsc/cmake-build-debug

[Finished]
-----------------


On Fri, May 11, 2018 at 12:08 PM, Jed Brown <jed at jedbrown.org> wrote:

> Yes, it depends on this module from the same repository.
>
> Note that you can use pkg-config to find PETSc these days.
>
> Evan Um <evanum at gmail.com> writes:
>
> > Hi Stefano,
> >
> > Thanks for your comment. Now, cmake was able to locate FindPETSc.cmake
> file
> > in my project directory, but I see a new error.
> >
> > Evan
> >
> >
> > Messages
> > ----------------------------------------------
> > /home/evan/opt/clion-2018.1.2/bin/cmake/bin/cmake
> -DCMAKE_BUILD_TYPE=Debug
> > -G "CodeBlocks - Unix Makefiles" /home/evan/CLionProjects/hellopetsc
> > CMake Error at FindPETSc.cmake:123 (include):
> >   include could not find load file:
> >
> >     FindPackageMultipass
> > Call Stack (most recent call first):
> >   CMakeLists.txt:10 (find_package)
> >
> >
> > CMake Error at FindPETSc.cmake:124 (find_package_multipass):
> >   Unknown CMake command "find_package_multipass".
> > Call Stack (most recent call first):
> >   CMakeLists.txt:10 (find_package)
> >
> >
> > -- Configuring incomplete, errors occurred!
> > See also
> > "/home/evan/CLionProjects/hellopetsc/cmake-build-debug/
> CMakeFiles/CMakeOutput.log".
> > See also
> > "/home/evan/CLionProjects/hellopetsc/cmake-build-debug/
> CMakeFiles/CMakeError.log".
> > ----------------------------------------------
> >
> > CMakeLists.txt
> > ----------------------------------------------
> > /home/evan/opt/clion-2018.1.2/bin/cmake/bin/cmake
> -DCMAKE_BUILD_TYPE=Debug
> > -G "CodeBlocks - Unix Makefiles" /home/evan/CLionProjects/hellopetsc
> > CMake Error at FindPETSc.cmake:123 (include):
> >   include could not find load file:
> >
> >     FindPackageMultipass
> > Call Stack (most recent call first):
> >   CMakeLists.txt:10 (find_package)
> >
> >
> > CMake Error at FindPETSc.cmake:124 (find_package_multipass):
> >   Unknown CMake command "find_package_multipass".
> > Call Stack (most recent call first):
> >   CMakeLists.txt:10 (find_package)
> >
> >
> > -- Configuring incomplete, errors occurred!
> > See also
> > "/home/evan/CLionProjects/hellopetsc/cmake-build-debug/
> CMakeFiles/CMakeOutput.log".
> > See also
> > "/home/evan/CLionProjects/hellopetsc/cmake-build-debug/
> CMakeFiles/CMakeError.log".
> >
> > [Finished]
> >
> >
> >
> > On Fri, May 11, 2018 at 11:34 AM, Stefano Zampini <
> stefano.zampini at gmail.com
> >> wrote:
> >
> >> CMAKE is case sensitive on this. You should use find_package(PETSc ….)
> >>
> >>
> >> > On May 11, 2018, at 9:28 PM, Evan Um <evanum at gmail.com> wrote:
> >> >
> >> > Hi,
> >> >
> >> > I would like to ask a question about FindPETSc.cmake. I place the
> cmake
> >> file in the same directory where main.cpp is placed. I also placed the
> file
> >> in /usr/share/cmake_xx/Modules.
> >>
> >> Actually, it can be put in any directory pointed by the variable
> >> CMAKE_MODULE_PATH. If I were you, I would not modify /usr/share/
> >>
> >> > Where should i put the file? What else should I do to use the file in
> >> cmake? Do I need any other lines in my cmakelists.txt except
> >> find_package(petsc)? Thanks for your comments.
> >> >
> >> > Evan
> >> >
> >> > -------------------------------------------------------------
> >> >
> >> > cmake_minimum_required(VERSION 3.10)
> >> >
> >> > project(hellopetsc)
> >> >
> >> > SET(CMAKE_CXX_STANDARD 11)
> >> > SET(CMAKE_C_COMPILER mpicc)
> >> > SET(CMAKE_CXX_COMPILER mpicxx)
> >> >
> >> > find_package(PETSC COMPONENTS CXX)
> >> >
> >> > add_executable(hellopetsc main.cpp)
> >> >
> >> > ------------------------------------------------------------
> >> > CMake Warning at CMakeLists.txt:9 (find_package):
> >> >   By not providing "FindPETSC.cmake" in CMAKE_MODULE_PATH this project
> >> has
> >> >   asked CMake to find a package configuration file provided by
> "PETSC",
> >> but
> >> >   CMake did not find one.
> >> >
> >> >   Could not find a package configuration file provided by "PETSC" with
> >> any of
> >> >   the following names:
> >> >
> >> >     PETSCConfig.cmake
> >> >     petsc-config.cmake
> >> >
> >> >   Add the installation prefix of "PETSC" to CMAKE_PREFIX_PATH or set
> >> >   "PETSC_DIR" to a directory containing one of the above files.  If
> >> "PETSC"
> >> >   provides a separate development package or SDK, be sure it has been
> >> >   installed.
> >>
> >>
>
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