Introduction

Artifacts for the paper: "AfterOMPT: An OMPT-Based Tool for Fine-Grained Tracing of Tasks and Loops". To cite us please use the following BibTeX entry:

@inproceedings{wodiany2020afterompt,
  title={AfterOMPT: An OMPT-Based Tool for Fine-Grained Tracing of Tasks and Loops},
  author={Wodiany, Igor and Drebes, Andi and Neill, Richard and Pop, Antoniu},
  booktitle={OpenMP: Portable Multi-Level Parallelism on Modern Systems},
  pages={165--180},
  year={2020},
  organization={Springer International Publishing},
  address={Cham},
  doi={10.1007/978-3-030-58144-2_11}
}

Repository structure:

• bin - Compiled benchmarks used for case studies.
• license - Licenses for the files in this repository.
• results - Results from the overhead analysis.
• scripts - Scripts used to run benchmarks for the overhead analysis.
• src - Source files for benchmarks from the bin directory.
• traces - Trace files of benchmarks from the bin directory.

Software

Following software was used to obtain results for this paper:

• LLVM OpenMP Runtime https://github.com/pepperpots/llvm-project-openmp (branch: iwomp2020)
• Clang https://github.com/LangdalP/clang (branch: pedervl/static-chunks-conditional)
• Aftermath https://github.com/pepperpots/aftermath (branch: iwomp2020)
• Afterompt https://github.com/pepperpots/Afterompt (tag: iwomp2020)

Building

This section shows how to build all components from the previous section.

Aftermath

Official steps described here can be used.

OpenMP Runtime

The OpenMP runtime has to be built in-tree with following steps:

• Clone the full LLVM project from here.
• Checkout the llvmorg-9.0.0 tag.
• Replace openmp directory with the customized one.
• Follow standard instruction for building LLVM OpenMP runtime.

Afterompt

The instruction for building the library can be find in its repository.

Clang

Clang has to be built using the old LLVM repository as follows:

• Clone LLVM project archive from here.
• Checkout the release_40 tag.
• Clone the customized Clang repository into tools directory.
• In the root CMake file remove all targets, but X86 from LLVM_ALL_TARGETS. This is necessary to avoid some compile errors caused by (most probably) ARM backend.
• Follow standard building instructions for the repository.

Licensing

The files in this repository use following licenses:

• SparseLU binaries and source code are published under the GPL-2.0 license.
• IS binaries and source code are published under the NASA Open Source Agreement v1.3.
• Scripts, traces and results are published under the MIT license.