Cyberinfrastructure Simulation Workbench

WRENCH-2.4 (October 29, 2024)

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This release includes a series of new features and bug fixes, including:

• Minor release
• WRENCH version 2.4 uses the SimGrid File System Module for all file system simulation, includes a more complete REST API implementation and documentation, as well as various software housekeeping updates.

Requires SimGrid 3.36

WRENCH-2.3 (September 10, 2024)

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This release includes a series of new features and bug fixes, including:

• Minor release
• WRENCH version 2.3 includes a more complete REST API implementation as well as various software upgrades and bug fixes.

Requires SimGrid 3.36

WRENCH-2.2 (July 20, 2023)

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This release includes a series of new features and bug fixes, including:

• Minor release
• WRENCH version 2.2 includes the implementation of a new File Proxy storage service and of new Compound storage service, the implementation of an MPI Action that makes it possible to simulate MPI programs, the implementation of a daemon that makes it possible to implement simulations using a REST API, as well as many minor improvements, new features, and bug fixes.

Requires SimGrid 3.34

WRENCH-2.1 (October 7, 2022)

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This release includes a series of new features and bug fixes, including:

• Minor release
• WRENCH version 2.1 includes the implementation of a new storage service for the simulation of the XRootD storage system, performance enhancements in terms of speed and memory footprint, and minor bug fixes.

Requires SimGrid 3.32

WRENCH-2.0 (April 8, 2022)

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This release includes a series of new features and bug fixes, including:

• Major release
• WRENCH version 2.0 includes a new generic 'action' API, minor changes to the current 'workflow' API, vastly improved documentation, as well as significantly decreased simulation time and memory footprint.

Requires SimGrid 3.31

WRENCH-1.11 (February 24, 2022)

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This release includes a series of new features and bug fixes, including:

• Minor changes and bug fixes
• Last 1.x release
• WRENCH version 2.0 will be released soon, which will include minor changes to the current 'workflow' API, a new more generic 'non-workflow' API, as well as significantly decreased simulation time and memory footprint.

Requires SimGrid 3.30

WRENCH-1.10 (October 16, 2021)

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This release includes a series of new features and bug fixes, including:

• Support for programmatic platform description
• Enable a job to check locations for a file in some order of preference
• Enhancements

Requires SimGrid 3.29

WRENCH-1.9 (August 24, 2021)

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This release includes a series of new features and bug fixes, including:

• Performance improvement
• Updates to HTCondor component and API
• Enhancements

Requires SimGrid 3.27

WRENCH-1.8 (February 18, 2021)

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This release includes a series of new features and bug fixes, including:

• I/O simulation model that includes the key features of the Linux page cache
• Extended HTCondor component model to simulate executions of the HTCondor Grid Universe
• A number of improvements to the WRENCH Dashboard (including visualization of I/O reads and writes and customizations)
• A number of documentation improvements, bug fixes, and code enhancements

Requires SimGrid 3.26

WRENCH-1.7 (September 17, 2020)

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This release includes a series of new features and bug fixes, including:

• Redesign of the WRENCH Dashboard: includes a number of graphs for visualizing the Gantt chart of the workflow execution, host utilization, network bandwidth usage, and energy consumption.
• Improvements to BareMetalComputeService: load is now equally distributed among hosts, and the service provides an API equivalent to the squeue Slurm command.
• Improvements to CloudComputeService: added a function to get the ComputeService for a VM based on its name.
• Improvements to VirtualizedClusterComputeService: added a function to get the physical host.
• Enabled support for capturing network link's usage during the simulation.
• Improvements to Simulation JSON output: added disk read/write failures, and network link usage.
• Added an exception handling for ensuring a link bandwidth in the platform file is not set to zero.
• A number of bug fixes and small enhancements

Requires SimGrid 3.25

WRENCH-1.6 (May 7, 2020)

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This release includes a series of new features and bug fixes, including:

• Refactored the WRENCH documentation: WRENCH 101 for users and WRENCH 102 for developers
• New collection of examples provided with WRENCH distribution: Over 10 examples of simulators including cloud and batch computing, and a simulator for workflow processing
• Removed dependency to Lemon library: We now use Boost, which is already used by SimGrid
• Simulation logging in now disabled by default: In an attempt to reduce the verbosity of simulation outputs, detailed simulation output (i.e., services and components) have been disabled. Full logging can be enabled using the --wrench-full-log command line argument, or via fine-grained logging capabilities (see documentation).
• Refactored the BatchComputeService class: Includes a conservative backfilling algorithm for validation purposes
• Improvements to simulation output processing and JSON output: Now, WRENCH provides an option to generate simulation output into a single JSON file (includes: task, host, disk I/O, and energy information)
• Series of improvements to the WRENCH Dashboard
• A number of bug fixes and small enhancements

Requires SimGrid 3.25

WRENCH-1.5 (February 9, 2020)

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This release includes a series of new features and bug fixes, including:

• Simulation of failures
• WRENCH Dashboard
• Enabled Pilot Job Submission for HTCondor compute service
• Improved exception handling
• Added a BatchComputeServiceProperty to make it possible to ignore bogus job specifications in workload trace files
• Allow users to define SIMGRID_INSTALL_PATH for non-standard SimGrid installations
• Code performance improvements
• Bug Fixes

Requires SimGrid 3.25

WRENCH-1.4 (April 22, 2019)

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This release includes a series of new features and bug fixes, including:

• Updated Batsched support (support to new JSON-based protocol)
• Dump pstate and energy consumption data as JSON
• Adding support for bytesRead, bytesWritten, and avgCPU for workflows defined as JSON
• Adding ComputeService::getTotalNumCores() and ComputeService::getTotalNumIdleCores()
• wrench::BatchService should handle requested vs. real job run times when replaying traces
• Bug Fixes

Requires SimGrid 3.21

WRENCH-1.3 (January 3, 2019)

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This release includes a series of new features and bug fixes, including:

• Development of a wrench-init tool
• MultiHostMultiCoreComputeService re-implemented as BareMetalComputeService
• Documentation of the JSON schema for workflows
• Documentation Guide containing detailed descriptions of WRENCH core services

Requires SimGrid 3.21

WRENCH-1.2 (November 6, 2018)

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This release includes a series of new features and bug fixes, including:

• New HTCondor compute service
• Improved standard job submission to specific VM (Cloud Service)
• Allow a WMS to start a new service dynamically
• New function for dumping the workflow execution data in a JSON format

Requires SimGrid 3.21

WRENCH-1.1 (August 26, 2018)

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This release includes a series of new features and bug fixes, including:

• Energy consumption by hosts and support for power state management
• Virtual machine management support including shutdown, start, suspend, and resume operations
• Enriched set of simulation events in the simulation output
• Command-line options

Requires SimGrid 3.2