v1.4

WRENCH is a simulation framework for building simulators of Workflow Management Systems. WRENCH implements high-level simulation abstractions on top of the SimGrid simulation framework, so as to make it possible to build simulators that are accurate, that can run scalably on a single computer, and that can be implemented with minimal software development effort.

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

• #87: Updated Batsched support (support to new JSON-based protocol)
• #88: Dump pstate and energy consumption data as JSON
• #90: Adding support for bytesRead, bytesWritten, and avgCPU for workflows defined as JSON
• #92: Adding ComputeService::getTotalNumCores() and ComputeService::getTotalNumIdleCores()
• #96: wrench::BatchService should handle requested vs. real job run times when replaying traces
• Bug fixes: #97, #99, #100

Note: WRENCH 1.4 requires SimGrid 3.21.

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.4/user/wrench-101.html

v1.3

WRENCH is a simulation framework for building simulators of Workflow Management Systems. WRENCH implements high-level simulation abstractions on top of the SimGrid simulation framework, so as to make it possible to build simulators that are accurate, that can run scalably on a single computer, and that can be implemented with minimal software development effort.

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

• #85: Development of a wrench-init tool
• #76: MultiHostMultiCoreComputeService re-implemented as BareMetalComputeService
• #78: Documentation of the JSON schema for workflows
• #77: Documentation Guide containing detailed descriptions of WRENCH core services
• Bug fixes: #81

Note: WRENCH 1.3 requires SimGrid 3.21.

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.3/user/wrench-101.html

v1.2

WRENCH is a simulation framework for building simulators of Workflow Management Systems. WRENCH implements high-level simulation abstractions on top of the SimGrid simulation framework, so as to make it possible to build simulators that are accurate, that can run scalably on a single computer, and that can be implemented with minimal software development effort.

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

• #50: New HTCondor compute service
• #68: Improved standard job submission to specific VM (Cloud Service)
• #70: Allow a WMS to start a new service dynamically
• #74: New function Simulation::dumpWorkflowExecutionJSON() for dumping the workflow execution data in a JSON format
• Bug fixes: #67, #69, #79, #80

Note: WRENCH 1.2 requires SimGrid 3.21.

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.2/user/wrench-101.html

1.1

WRENCH is a simulation framework for building simulators of Workflow Management Systems. WRENCH implements high-level simulation abstractions on top of the SimGrid simulation framework, so as to make it possible to build simulators that are accurate, that can run scalably on a single computer, and that can be implemented with minimal software development effort.

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

• #37: Energy consumption by hosts and support for power state management
• #60: Virtual machine management support including shutdown, start, suspend, and resume operations
• #13: Enriched set of simulation events in the simulation output
• #59: Command-line options
• Bug fixes: #38, #63, #64, #66
• Code improvements: #36, #61

Note: WRENCH 1.1 requires SimGrid 3.20 or higher.

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.1/user/wrench-101.html

1.0.1

WRENCH is a simulation framework for building simulators of Workflow Management Systems. WRENCH implements high-level simulation abstractions on top of the SimGrid simulation framework, so as to make it possible to build simulators that are accurate, that can run scalably on a single computer, and that can be implemented with minimal software development effort.

On this minor bug fix and small improvements release, we provide:

• #52: Ability to declare VM creation overhead in seconds to Cloud/VirtualizedCluster service
• #58: Ability to load batch workload trace file in JSON "batsim" format
• Bug fixes: #51, #53, #54, #56, and #57

Note: WRENCH 1.0.1 requires SimGrid 3.20 or higher.

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.0.1/user/wrench-101.html

1.0.0

WRENCH's 1.0 release

WRENCH enables novel avenues for scientific workflow use, research, development, and education in the context of large-scale scientific computations and data analyses. WRENCH is an open-source library for developing simulators. WRENCH exposes several high-level simulation abstractions to provide high-level building blocks for developing custom simulators.

This release provides a set of (simulated) services that can be instantiated on the simulated platform:

• Compute Services (multi-core multi-host, virtualized cluster, cloud computing, and batch computing)
• Storage Service (including support for scratch space for computing nodes)
• File Registry Service (file replica catalog)
• Network Proximity Service (monitors the network and provide a database of host-to-host network distances)
• Workflow Management Systems (WMSs)

Documentation and additional information: http://wrench-project.org
WRENCH 101 Documentation: http://wrench-project.org/wrench/1.0/user/wrench-101.html

1.0.0-beta

WRENCH's 1.0-beta release

This release provides the core components of the WRENCH software for enabling novel avenues for scientific workflow use, research, development, and education in the context of large-scale scientific computations and data analyses.

More information: http://wrench-project.org

1.0.0-alpha

WRENCH's 1.0-alpha release

This release provides the core components of the WRENCH software for enabling novel avenues for scientific workflow use, research, development, and education in the context of large-scale scientific computations and data analyses. In summary this release provides:

• Compute Services (multi-core multi-host, cloud computing, and batch computing)
• Storage Service
• File Registry Service (file replica catalog)
• Network Proximity Service

More information: http://wrench-project.org