OmpSs-2 release 2023.05

Software       Version            Individual Tag
------------------------------------------------
Nanos6             2.8    github-release-2023.05
Nodes            1.0.0    github-release-2023.05
nOS-V            1.0.0    github-release-2023.05
ovni             1.2.0                     1.2.0
LLVM         17.0.0git    github-release-2023.05
Mercurium       2.3.0a    github-release-2023.05

.gitmodules

@@ -9,4 +9,10 @@
 	url = https://github.com/bsc-pm/llvm.git
 [submodule "ovni"]
 	path = ovni
-	url = https://github.com/bsc-pm/ovni
+	url = https://github.com/bsc-pm/ovni.git
+[submodule "nos-v"]
+	path = nos-v
+	url = https://github.com/bsc-pm/nos-v.git
+[submodule "nodes"]
+	path = nodes
+	url = https://github.com/bsc-pm/nodes.git

NEWS.md

@@ -1,6 +1,31 @@
 # OmpSs-2 Release Notes
-All notable changes to the OmpSs-2 programming model, the Nanos6 runtime system, the Mercurium source-to-source
-compiler, and the OmpSs-2 LLVM-based compiler will be documented in this file.
+All notable changes to the OmpSs-2 programming model and its related software will be documented in this file.
+
+
+## Version 2023.05, Wed May 24, 2023
+The OmpSs-2 2023.05 release includes new software projects and several performance and usability improvements for the OmpSs-2 programming model.
+In the context of OmpSs-2, this release introduces the new NODES runtime system supporting OmpSs-2, a novel and efficient tasking library named nOS-V, new Task-Aware libraries for interoperability with GPU offloading models, and new features in the ovni instrumentation library.
+
+### General
+- Improve support for ovni instrumentation in the Nanos6 runtime and support for the idle CPUs view
+- Add performance and usability improvements in Nanos6
+- Allow embedding hwloc library into Nanos6 to avoid conflicts with other third-party software that use different hwloc versions
+- Add support for `atomic` and `critical` OmpSs-2 directives in the LLVM/Clang compiler
+- Drop support for `task for` clause
+- Mercurium is the OmpSs-2 legacy compiler, not supported anymore, and will not provide new features for OmpSs-2. Use the LLVM/Clang compiler instead
+
+### NODES Runtime and nOS-V Tasking Library
+- Introduce the new low-level nOS-V threading and tasking library, enabling co-execution of applications
+- Introduce the new NODES runtime system, built on top of nOS-V, that supports the OmpSs-2 model. This runtime implements the `taskiter` construct and leverages directed task graphs (DCTG) to optimize the execution of iterative applications
+- Extend `-fompss-2` option from LLVM/Clang to choose between Nanos6 and NODES runtimes by accepting the option values `libnanos6` (default) and `libnodes`, respectively
+
+### Task-Aware Libraries
+- Introduce the new Task-Aware CUDA (TACUDA), Task-Aware HIP (TAHIP) and Task-Aware SYCL (TASYCL) libraries. These task-aware libraries seamlessly integrate the CUDA, HIP and SYCL APIs for GPU offloading with the OmpSs-2 and OpenMP tasking models
+- Add performance improvements and bug fixes in the Task-Aware MPI (TAMPI) and Task-Aware GASPI (TAGASPI) communication libraries
+- Extend Task-Aware MPI (TAMPI) to support ovni instrumentation and allow tracing of multi-node hyrbid MPI+OmpSs-2 applications
+
+### **ovni** Instrumentation
+- Add new graph-based design in ovni to support complex models like the new breakdown timeline
 
 
 ## Version 2022.11, Tue Nov 15, 2022

README.md

@@ -7,6 +7,30 @@ This meta-repository contains the official OmpSs-2 programming model's releases.
 * OmpSs-2 Examples: https://pm.bsc.es/gitlab/ompss-2/examples  
 * OmpSs-2 Release Notes: [NEWS.md](./NEWS.md)
 
+The OmpSs-2 programming model consist of several software repositories:
+
+* [Nanos6](https://github.com/bsc-pm/nanos6): The main runtime system that supports OmpSs-2
+* [NODES](https://github.com/bsc-pm/nodes): The runtime system that supports OmpSs-2 and works over the nOS-V tasking library
+* [nOS-V](https://github.com/bsc-pm/nos-v): A novel tasking library for efficient task execution and resource managing
+* [ovni](https://github.com/bsc-pm/ovni): A fast instrumentation library to record small execution events and generate Paraver traces
+* [LLVM/Clang](https://github.com/bsc-pm/llvm): A LLVM-based compiler that supports the OmpSs-2 directives (recommended)
+* [Mercurium](https://github.com/bsc-pm/mcxx): The source-to-source compiler supporting OmpSs-2 directives (legacy compiler)
+* Several task-aware libraries for interoperability with other programming models:
+  * [Task-Aware MPI](https://github.com/bsc-pm/tampi): Library providing support for taskifying MPI communications
+  * [Task-Aware GASPI](https://github.com/bsc-pm/tagaspi): Library providing support for taskifying RMA communications
+  * [Task-Aware CUDA](https://github.com/bsc-pm/tacuda): Library providing support for taskifying CUDA kernels and operations
+  * [Task-Aware HIP](https://github.com/bsc-pm/tahip): Library providing support for taskifying HIP kernels and operations
+  * [Task-Aware SYCL](https://github.com/bsc-pm/tasycl): Library providing support for taskifying SYCL kernels and operations
+
+This repository contains the core software projects of the OmpSs-2 model as git submodules.
+This repository has a different git tag for each of the OmpSs-2 releases that are available.
+The submodules are a link to the different software repositories and they point to the release
+commit that corresponds to the OmpSs-2 release. Concretely, there is a submodule for each of
+the following projects: Nanos6, NODES, nOS-V, ovni, LLVM/Clang and Mercurium (legacy).
+
+The sources of the task-aware libraries can be retrieved directly from their own repositories,
+which are listed above.
+
 # Getting Started
 
 This repository contains all OmpSs-2 releases stored as *git tags*. These release
@@ -24,12 +48,12 @@ After cloning this repository, run the following command to move to a particular
 OmpSs-2 release:
 
 ```
-$ git checkout 2021.11
+$ git checkout 2023.05
 ```
 
-Then, run the command below to download the Nanos6, Mercurium and LLVM-based compiler
-sources in the `nanos6`, `mcxx` and `llvm` subfolders, respectively. Those sources will
-be the ones that correspond to the previously selected release.
+Then, run the command below to download the Nanos6, NODES, nOS-V, ovni, LLVM-based compiler
+and Mercurium sources in the `nanos6`, `nodes`, `nos-v`, `ovni`, `llvm`, and `mcxx` subfolders,
+respectively. Those sources will be the ones that correspond to the selected release.
 
 ```
 $ git submodule update --init