* Removed unused components. Updated tests. Improved checkpointing model Improved model, started with SimPowerSource implemented FailureModels and Checkpointing First working version midway commit first update All simulation are now run with a single CPU and single MemoryUnit. multi CPUs are combined into one. This is for performance and explainability. * fixed merge conflicts * Updated M3SA paths. * Fixed small typo
* Updated all package versions including kotlin. Updated all web-server tests to run. * Changed the java version of the tests. OpenDC now only supports java 19. * small update * test update * new update * updated docker version to 19 * updated docker version to 19
This change adds the log4j-core dependency to various modules of OpenDC using log4j2, to ensure logging keeps working. The upgrade to SLF4J 2.0 broke the Log4j2 functionality, since the log4j-core artifact is not automatically shipped with the SLF4J implementation.
This change removes the OpenTelemetry integration from the OpenDC Compute modules. Previously, we chose to integrate OpenTelemetry to provide a unified way to report metrics to the users. Although this worked as expected, the overhead of the OpenTelemetry when collecting metrics during simulation was considerable and lacked more optimization opportunities (other than providing a separate API implementation). Furthermore, since we were tied to OpenTelemetry's SDK implementation, we experienced issues with throttling and registering multiple instruments. We will instead use another approach, where we expose the core metrics in OpenDC via specialized interfaces (see the commits before) such that access is fast and can be done without having to interface with OpenTelemetry. In addition, we will provide an adapter to that is able to forward these metrics to OpenTelemetry implementations, so we can still integrate with the wider ecosystem.
This change updates the Gradle build configuration to ensure that all library modules (that will be published) use testing and are included in coverage reports. This should ensure the public modules remain well tested.
This change removes the opendc-platform module from the project. This module represented a Java platform which was previously used for sharing a set of dependency versions between subprojects. However, with the version catalogue that was added by Gradle, we currently do not use the platform anymore.
This change adds a new module, opendc-common, that contains functionality that is shared across OpenDC's modules. We move the existing utils module into this new module.
This change adds a metric for the provisioning time of virtual machines by the compute service.
This change adds support for the Gradle version catalog feature in our build configuration. This allows us to have a single file, gradle/libs.versions.toml, which contains all the dependency versions used in this project.