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This change adds interpolation functionality to the standard library for
instrumentation devices.
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These changes implement the Instrumentation API described in issue #11
into the Omega simulation kernel.
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This commit creates the interfaces for the new Instrumentation API
described in issue #11. This interface allows users to plug an
instrumentation device into a (live) simulation in order extract
measurements from the simulation.
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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.
Closes #18
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This change simplifies the `Context` interface to reduce the amount of
methods required to implement by implementors.
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This change removes the unused transformation receive methods from the
`Context` class as this functionality can now be easily implemented in
the standard library using the newly introduced `sender` property.
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This change fixes the bug where the insertion order into the message
queue was not guaranteed for messages arriving at the same time, causing
some non-deterministic behaviour.
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This change provides a method in the standard library to access the
process context in nested suspending function calls.
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This change adds a `sender` property to the `Context` interface to
provide processes access to the sender of the latest received message.
Please note that methods like `hold()` and `interrupt()` may change the value
of this property.
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This change fixes the broken implementation of the `receive()` method
with a timeout due to an invalid condition.
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This change will make the kernel handle the launch of processes using a
kernel process that is launched at the start of the simulation and
launches processes when it receives `Launch` messages.
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This change creates a distinction between a kernel and a simulation.
A single simulation is represented by a `Simulation` object which
provides control over the simulation, while the `Kernel` interface
allows users to create a new simulation using that kernel as backend.
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This change fixes the deployment of the OpenDC simulation model.
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This change will make the simulation kernel launch the processes at the
initial run instead of when the processes are registered.
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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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