Linux Quick Start Developer

Where is OpenM++

• Download:
  • desktop version: binary files and source code openmpp_debian_YYYYMMDD.tar.gz
  • cluster version: binary files and source code openmpp_debian_mpi_YYYYMMDD.tar.gz
• How to: create and debug models on Linux

It is recommended to start from desktop version of openM++.

You need to use cluster version of openM++ to run the model on multiple computers in your network, in cloud or HPC cluster environment. OpenM++ is using MPI to run the models on multiple computers. Please check Model Run: How to Run the Model page for more details.

Build on Linux

Tested platforms:

• Debian 10, MX Linux 19, Ubuntu 20.04, RedHat (CentOS) 8
• g++ >= 8.3
• (optional) MPI, i.e.: OpenMPI >= 3.1 or MPICH (other MPI implementations expected to work but not tested)
• (optional) OpenMPI >= 4.0 on RedHat (CentOS) >= 8.3 (OpenMPI was broken on CentOS 8.1)

It is also occasionally tested on openSUSE, Mint, Manjaro, Solus and others.

It is not supported, but may also work on older versions, for example Ubuntu 18.04 and RedHat 7 with with devtolset-7 module enabled.

Build on Ubuntu 20.04

There is a minor incompatibility of shared libraries between Ubuntu 20.04 and Debian 10. As result you need to rebuild our model run-time libraries before building you own model:

• download and unpack openM++ into any folder:

wget https://github.com/openmpp/main/releases/download/v1.8.6/openmpp_debian_20210415.tar.gz
tar xzf openmpp_debian_20210415.tar.gz

• rebuild model run-time libraries:

cd openmpp_debian_20210415/openm
wget https://github.com/openmpp/main/releases/download/v1.8.6/openmpp_debian_20210415.tar.gz
tar xzf openmpp_debian_20210415.tar.gz

Build debug version of the model

You can use any of test models makefile, except of modelOne, as starting point to develop your own model. Below we are using NewCaseBased model as example.

To build and run debug version of the model use desktop (non-MPI) version of openM++:

• check your g++ --version:

g++ (Debian 8.3.0-6) 8.3.0
g++ (Ubuntu 9.3.0-10ubuntu2) 9.3.0
g++ (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5)

• download and unpack openM++

wget https://github.com/openmpp/main/releases/download/v1.8.3/openmpp_debian_20210304.tar.gz
tar xzf openmpp_debian_20210304.tar.gz

• build debug version of NewCaseBased model and "publish" it ("publish" do create NewCaseBased.sqlite database with default input data set)

cd openmpp_debian_20210304/models/NewCaseBased/
make all publish

• run the model

cd ompp-linux/bin
./NewCaseBasedD

2017-06-06 19:59:12.0429 NewCaseBased
2017-06-06 19:59:12.0449 Run: 103
2017-06-06 19:59:12.0449 Get fixed and missing parameters
2017-06-06 19:59:12.0449 Get scenario parameters
2017-06-06 19:59:12.0450 Sub-value 0
2017-06-06 19:59:12.0450 compute derived parameters
2017-06-06 19:59:12.0450 Initialize invariant entity data
2017-06-06 19:59:12.0450 Member=0 simulation progress=0%
..........
2017-06-06 19:59:12.0505 member=0 write output tables - finish
2017-06-06 19:59:12.0508 Writing Output Tables Expressions
2017-06-06 19:59:12.0520 Done.

Build release version of the model

Make executable, "publish" and run NewCaseBased test model:

cd openmpp_debian_20210304/models/NewCaseBased/
make RELEASE=1 clean-all
make RELEASE=1 all publish
cd ompp-linux/bin
./NewCaseBased

Rebuild all test models

Make executables, "publish" (create model.sqlite database file) and run all test models:

cd openmpp_debian_20210304/models/
make RELEASE=1 clean-all
make RELEASE=1 all publish run publish-all

results are in openmpp_debian_20210304/models/bin directory

OM_ROOT: How to separate model folder and openM++ release folder

To keep your model code separate from openM++ release folder you will need to set OM_ROOT environmenmt variable. For example if model is in $HOME/my-models/BestModel then you can build it as:

cd my-models/BestModel
OM_ROOT=openmpp_debian_20210304 make all publish run

Or edit $HOME/my-models/BestModel/makefile to set OM_ROOT:

ifndef OM_ROOT
  OM_ROOT = $(HOME)/openmpp_debian_20210304
endif

Or add export OM_ROOT=$HOME/openmpp_debian_20210304 into your .bash_profile

Build cluster version of the model to run on multiple computers over network

Make sure you have MPI installed and configured. For example, on RedHat (CentOS) you may need to load MPI module: module load mpi/openmpi-x86_64

• download and unpack cluster version of openM++, i.e.:

wget https://github.com/openmpp/main/releases/download/v1.8.3/openmpp_debian_mpi_20210304.tar.gz
tar xzf openmpp_debian_mpi_20210304.tar.gz

please notice name of cluster version archive has mpi in it, i.e. openmpp_debian_mpi_20210304.tar.gz

• make executable and "publish" (create model.sqlite database file) of NewCaseBased test model:

cd openmpp_debian_mpi_20210304/models/NewCaseBased/
make RELEASE=1 OM_MSG_USE=MPI all publish

• run 3 instances of NewCaseBased on 3 hosts to compute 16 subsamples using 4 threads

cd ompp-linux/bin
mpirun -n 3 -H omm,om1,om2 NewCaseBased_mpi -OpenM.Subvalues 16 -OpenM.Threads 4

2017-06-06 20:15:12.0050 NewCaseBased
2017-06-06 20:15:12.0173 NewCaseBased
2017-06-06 20:15:12.0200 NewCaseBased
2017-06-06 20:15:13.0148 Parallel run of 3 modeling processes, 4 thread(s) each
2017-06-06 20:15:13.0162 Run: 102
2017-06-06 20:15:13.0163 Get fixed and missing parameters
2017-06-06 20:15:13.0163 Get scenario parameters
2017-06-06 20:15:13.0164 compute derived parameters
2017-06-06 20:15:13.0164 Initialize invariant entity data
2017-06-06 20:15:13.0161 Run: 102
..........
2017-06-06 20:15:13.0224 member=0 write output tables - finish
2017-06-06 20:15:13.0354 Done.
2017-06-06 20:15:13.0352 Done.
2017-06-06 20:15:13.0353 Done.

You can use any of test models makefile, except of modelOne, as starting point to develop your own model.