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This change aligns the code formatting of the project with the official
Kotlin Style Guide. They can be found at
http://kotlinlang.org/docs/reference/coding-conventions.html.
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This change bumps the version of the dependencies used by the project.
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This change contains the redesign of the core simulation API and
provides a cleaner interface for developing simulation models for the
users.
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This change adds a timeout for experiments, which allows the user to set
an upper bound on the duration of an experiment.
Closes #3
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This change prevents the currently available scheduler implementations
from scheduling tasks to machines without processing units, since these
machines cannot perform any work.
Closes #4
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This change fixes a bug where sending a message to a stopped process
(gracefully or forced) would crash the simulation kernel with an
UninitializedPropertyAccessException.
This was caused by the fact that these processes still existed in the
registry, which caused the kernel to lookup a non-existent continuation
of a process.
This change will make the kernel remove stopped processes from the
registry, so they cannot be found anymore.
Closes #15
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This change improves the Docker deployment by moving the build process
from runtime to (image) build time. Also, the opendc-integration-jpa
module now consists of a core and mysql module, where the mysql module
is a specific deployment of the integration.
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This change fixes the interference of multiple experiments running at
the same time due to some thread unsafe behaviour in the
JpaExperimentManager class.
The code has now been restructured to solve the issue and fix the thread
unsafe behaviour.
Closes #9.
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This change will make Travis CI build the Gradle project and run the
test suite when pushing and on pull requests.
Closes #7
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This change improves the Docker integration by pre-building the
application when building the image to prevent having to build the
application at runtime.
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This change adds a smoke test to check for some basic failures when
running many simulations.
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Also changes the environment variables of the run-command to reflect the
standard followed in the rest of the OpenDC codebase.
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This change adds a Dockerfile to the repository which will automatically
launch the JPA integration.
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This change updates the .gitignore to include the gradle-wrapper in
the repository.
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This change allows a process to suspend within a receive block.
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This change sets up the JPA integration module which provides
integration of the JPA framework with the OpenDC simulator.
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This change allows processes to set a timeout when waiting for a message
to arrive.
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This change implements default tasks scheduling algorithms like FIFO or SRTF
and adds them to to the standard library.
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This change splits up the current code base into three different
module:
- opendc-core - This module defines the API which you can use to write
simulatable entities in a topology.
- opendc-omega - This module is the reference implementation of the API
defined the `opendc-core` module.
- opendc-stdlib - This module provides a standard library of entities
which can be used for datacenter simulation.
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This change converts the ingoingEdges() and outgoingEdges() to a
property in Kotlin. This better conveys the meaning of the attribute and
is more in line with a Kotlin design.
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This change removes some unused messaging classes, which have become
obselete after the design change.
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This change allows for easier construction of a topology.
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This change refactors the default Simulator implementation, reformatting
the code, adding input validation and extracting common code.
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This change implements a time jump to the next event in the queue if
there are no events scheduled for the current tick.
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This change moves the default Simulator implementation into its own
package called 'omega'.
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This change renames the package named 'kernel' to 'simulator' to better
convey the use of this package.
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This change separates the Simulator interface from one of its possible
implementations. This allows us to easily swap simulators between
experiments.
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This change renames the sleep(n) method to wait(n) to make clear that
the method will not cause the thread to sleep, but instead suspends the
kernel and allows other kernels to still run during the waiting period.
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This change fixes a bug where an incorrect value was cast and returned
by helper methods in the Node module.
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This change makes the Topology interface implement the Set interface to
provide common methods like checking whether a node is part of the given
topology.
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This change embeds simulation kernels into the entities and relations of
the topology.
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This change adds the out directory generated by IntelliJ to the
.gitignore list.
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This change adds a notion of entities having an initial state specified
in the topology.
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This change introduces a basic coroutine-based simulator implementation.
The simulator currently misses the crucial ability to send messages over
channels, which will be implemented in later commits.
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This change introduces a new architecture based on implicit, untyped
connections between nodes in the topology of a cloud network.
This model assumes that entities can only communicate to other entities
directly if they are connected via a channel (edge).
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This change fixes the copyright headers and license of the project in
order to assign the copyright to atlarge-research.
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This change adds the initial architecture of the Kotlin rewrite. The
representation of the topology of a cloud network is unfinished and I am
still not sure what would be the best way to represent it.
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This change adds an .editorconfig file for universal editor
configuration for the project.
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