runrms

runrms is a package to run and open Aspen RMS™ under a site installation environment. It also provides an Ert forward model to do so under an ensemble simulation context.

Note

Trademark Notice and Disclaimer

Aspen RMS™ is a registered trademark of Aspen Technology, Inc. (AspenTech). Use of RMS™ is governed by AspenTech's licensing terms and conditions. It is proprietary software and is neither open-source nor free. A valid license agreement with AspenTech is required for its use.

runrms is an independent project developed by Equinor and is neither produced by nor affiliated with AspenTech. It is open-source and free software released under the GPL v3 license.

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Usage

Interactive

To open the default RMS version simply run:

runrms

You can provide a particular version to open it with if that version is configured:

runrms -v 14.5.0

runrms can also create or interact with existing RMS projects:

# 1. If this project doesn't exist, it creates it
# 2. If it does exist, it will read and open the project with the version
#    given in the project files.
runrms project.rms.14.5.0

You may force-open a project to a greater version, which will upgrade the project:

runrms project.rms.14.5.0 -v 15.0.0

Ert forward model

When installed in an environment with Ert this package makes an RMS forward model available. It is invoked like so:

DEFINE <RMS_NAME>        drogon.rms14.2.2
DEFINE <RMS_VERSION>     14.2.2
DEFINE <RMS_WF_NAME>     MAIN

FORWARD_MODEL RMS(<IENS>=<IENS>, <RMS_VERSION>=<RMS_VERSION>, <RMS_PROJECT>=<CONFIG_PATH>/../../rms/model/<RMS_NAME>, <RMS_WORKFLOW>=<RMS_WF_NAME>, <RMS_TARGET_FILE>=RMS_TARGET_MAIN)

A synthetic case with a full Fast Model Update (FMU) modeling set-up using this forward model is available at fmu-drogon.

Configuration

A default configuration is included in this repository at src/runrms/config/runrms.yml. If installed in a Python environment this default configuration will be used, but is probably not fit for your site installation.

There are two options to use a modified configuration file on your site:

Give a configuration path for interactive or test usage

You can invoke runrms interactively like so and provide a path to a configuration file to use instead:

runrms --setup path/to/runrms.yml

A current limitation is that this configuration will not and cannot be used for the Ert forward model. The primary use case for this option is testing.

Install a configuration package with a runrms entry point

You may also configure your environment through an entry-point defined in a separate package. This package can have any name, but let us suppose it is called rmsconfig. This package must add a runrms entry point into its pyproject.toml:

[build-system]
requires = ["setuptools"]
build-backend = "setuptools.build_meta"

[project]
name = "rmsconfig"
version = "1.0.0"

[tool.setuptools.package-data]
rmsconfig = ["runrms.yml"]

[project.entry-points.runrms]
config_path = "rmsconfig:runrms_config_path"

runrms_config_path must be a function that returns a path to the configuration file. The name and location of this function may be arbitrary so long as it returns a pathlib.Path absolute path to the configuration location.

Note that how the yaml file is included with your package may vary depending on the packaging build tool you use. However, most will support a MANIFEST.in file as an option outside of pyproject.toml.

# src/rmsconfig/__init__.py
# src/rmsconfig/runrms.yml
from pathlib import Path


def runrms_config_path() -> Path:
    """Returns the absolute path to runrms.yml."""
    return (Path(__file__).parent / "runrms.yml").resolve()

runrms will then load, read, and use this configuration. It does apply to the forward model!

A simple package that implements this is included in examples/.

Configuration values

As mentioned in the previous section you can find the default configuration file included in this package at src/runrms/config/runrms.yml. Here is a brief explanation of what these values mean.

• wrapper: This is an executable that is executed between the RMS invocation. It can be used, for example, for unsetting environment variables before establishing the execution context for RMS.
• default: The default version to run when runrms is invoked. It must contain a valid entry in the versions entries (see below).
• exe: The RMS executable to invoke. This may also be another wrapper, depending on your set-up.
• interactive_usage_log: Optional. A location to write a log entry whenever an interactive (i.e., GUI) invocation of RMS occurs.
• env: Contains key-value mappings defining environment variables and their values that will be applied to all RMS versions.
• versions: Contains mappings of supported RMS versions and the environment variables to set for them, respectively. Each version can contain an env mapping.

Developing

Clone and install into a virtual environment.

git clone git@github.com:equinor/runrms.git
cd runrms
# Create or source virtual/Komodo env
pip install -U pip
pip install -e ".[dev]"
# Make a feature branch for your changes
git checkout -b some-feature-branch

Run the tests with

pytest -n auto tests

Ensure your changes will pass the various linters before making a pull request. It is expected that all code will be typed and validated with mypy.

ruff check
ruff format --check
mypy src

See the contributing document for more.