The Damaris library is being used within the ACROSS project to improve the I/O performance of one of the three pilot use cases being used in a software-hardware co-design methodology.
The pilot use-case is the OPM flow software which is an open-source code for simulating sub-surface geological flows of mixtures of fluids. The code is being developed to model carbon dioxide capture and storage options over long time scales. The simulations will be computationally demanding and improved I/O will help the performance of the code. The ACROSS project is also supporting the extension of Damaris for in-situ analytics, where embedding Python in conjunction with other distributed analytic libraries (e.g. MELISSA, Ray) is being trialed as a way to query and analyze results of simulations while minimizing the required amount of output data being needed for post-processing. Of course, this will be able to be done asynchronously, with minimal effect on the simulation runtime with the help of Damaris.
Check out the ACROSS website here:
and follow the ACROSS project through social media here:
The OPM-Flow website:
Other analytics libraries
Version v1.7.0 of Damaris adds support for asynchronous Python based processing. This Damaris server side plug-in has support for Dask which is a Python distributed runtime engine and opens up a large number of analytic methods that can use Dask data types, these include SciKit-Learn and Tensorflow/Keras. In the Damaris…
This version of Damaris adds a ModifyModel class that enables the XML configuration file to be constructed and saved to programmatically, within C++ source code. Please see the following page for more information in-line-creation-of-damaris-xml-configuration-file. The release also includes logging of the time it takes for Damaris server cores to complete…
As part of a PRACE 6IP project, a report on the use of Damaris for improved I/O and in-situ visualization has been published on the PRACE website, entitled “In-situ visualization using Damaris: The Code_Saturne use case” The report documents the results of instrumenting Code_Saturne, an open-source Computational Fluid Dynamics (CFD)…
Damaris 1.5.0 has been released. This version adds support for the unstructured mesh data layout type, and currently the implementation only has ParaView support (VisIt support is on the way). It also includes better logging support and bug fixes included. Download is available from the Damaris download page. (N.B. There…
Damaris 1.3.3 has been released. This version fixes issues with multi-dimensional HDF5 storage and adds ability to add a comment field in Damaris configuration file elements Layout, Parameter, Mesh and Variable. Download is available from the Damaris download page.
A new version of Damaris, i.e. Damaris 1.3.2 is released. In this version, we have a bug fix for output of HDF5 files and there is also an updated Damaris Spack package available from the gitlab repository. The full release notes of this version can be found in Damaris download…
A new version of Damaris, i.e. Damaris 1.3.1 is released. In this version, we have some improvements in the build files and also the way Damaris can be integrated to other third-party simulations. Building damaris as a shared library is also supported in this version. The full release note of…
Version 1.3.0 of Damaris has been released. In this version, the simulations are able to use Damaris in support of in situ visualization with ParaView. Fore more details about the release notes check here. For any information about the ParaView support check this link.
The first results of using Damaris HDF5 backend on a large scale experiment are published in an article in the HDF5 blog. In this article, we presented how Damaris can help simulation developers to do the instrumentation (needed to support HDF5) easier and at the same time achieve a better…