Hi Karin,
To do what Radu outlined, you have to install DEME and Chrono, then link
against those installations. There are a couple of directions you can go:
1. Follow the instructions in the installing as library section
<https://github.com/projectchrono/DEM-Engine#install-as-library>. You
will install both Chrono and DEME, then link against both of them using the
framework in chrono-project (which are equivalently your own simulation
scripts).
2. Still you have first to install both Chrono and DEME. I attached a
more simplistic example in this reply, where you link your simulation
script (firstdeme.cpp) against a DEME installation using a simple
custom-made CMake script. You can add the linkage to Chrono yourself.
3. If you don't mind Python, then you can use pyChrono along with
pyDEME. No installation or CMake needed.
Thank you,
Ruochun
On Monday, November 6, 2023 at 2:17:31 AM UTC-6 Karin Sugi wrote:
> Hello all,
>
> I wander how can i include thirdparty modules such as DEM-Engine in
> chrono. When I tried to build demo script of DEM-Engine, it returns an
> error saying included modules doesn't exist.
>
> I think i should write something related to the DEM in find_package() of
> CMakeLists as same as using other chrono modlues, but what?
> My find_package() command is following. I added "Thirdparty" or
> "DEM-Engine" to COMPONENTS, but it doesn't work. Do you have any idea?
>
> find_package(Chrono
> COMPONENTS Irrlicht Vehicle
> OPTIONAL_COMPONENTS PardisoMKL
> CONFIG)
>
>
>
> Thanks in advance,
> Karin
>
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#include <core/ApiVersion.h>
#include <core/utils/ThreadManager.h>
#include <DEM/API.h>
#include <DEM/HostSideHelpers.hpp>
#include <DEM/utils/Samplers.hpp>
#include <cstdio>
#include <chrono>
#include <filesystem>
using namespace deme;
using namespace std::filesystem;
int main() {
DEMSolver DEMSim;
}# ------------------------------------------------------------------------------
# Additional include paths and libraries
# ------------------------------------------------------------------------------
# INCLUDE_DIRECTORIES(${ProjectIncludeRoot})
cmake_minimum_required(VERSION 3.18)
project(firstdeme)
#--------------------------------------------------------------
# Add the executable from your project and specify all C++
# files in your project.
#--------------------------------------------------------------
#add_executable(firstdeme firstdeme.cpp)
#--------------------------------------------------------------
#=============================================================================
# CMake configuration file for projects using DEM-Engine standalone library.
#=============================================================================
message("\n---- DEME standalone library ----\n")
#--------------------------------------------------------------
# List of all executables
#--------------------------------------------------------------
set(TESTS
firstdeme
)
#--------------------------------------------------------------
# Find the packages with required components
#--------------------------------------------------------------
find_package(CUDAToolkit REQUIRED)
find_package(ChPF REQUIRED)
find_package(DEME REQUIRED)
# If the required component(s) were not found, return now.
if(NOT DEME_FOUND)
message("Could not find DEM-Engine library, search DEME install dir for it")
return()
endif()
if(NOT ChPF_FOUND)
message("Could not find ChPF library, search DEME install dir for it")
return()
endif()
#--------------------------------------------------------------
# Include paths and libraries
#--------------------------------------------------------------
#
# (B) Path to the top of the source tree for this project
# - for access to utility headers
include_directories(
${DEME_INCLUDE_DIRS}
${CMAKE_SOURCE_DIR}
)
#--------------------------------------------------------------
# Append to the parent's list of DLLs (and make it visible up)
#--------------------------------------------------------------
#set(ALL_DLLS "${ALL_DLLS}" PARENT_SCOPE)
#--------------------------------------------------------------
# DEME requires C++17 to be linked against
#--------------------------------------------------------------
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
#--------------------------------------------------------------
# Loop over all programs and build them
#--------------------------------------------------------------
MESSAGE(STATUS "Physics programs...")
FOREACH(PROGRAM ${TESTS})
MESSAGE(STATUS "...add ${PROGRAM}")
ADD_EXECUTABLE(${PROGRAM} "${PROGRAM}.cpp")
SOURCE_GROUP("" FILES "${PROGRAM}.cpp")
set_property(TARGET ${PROGRAM} PROPERTY C_STANDARD 17)
set_property(TARGET ${PROGRAM} PROPERTY C_STANDARD_REQUIRED ON)
target_compile_definitions(${PROGRAM} PUBLIC
"DEME_DATA_DIR=\"${DEME_DATA_DIRS}\"")
target_link_libraries(${PROGRAM} DEME::simulator_multi_gpu)
ENDFOREACH()
