Ecological impact of IT is an increasingly important matter. This is why estimating the impact of a computation is useful, both for assessing the cost of a research activity or designing efficient methods. Power consumption and carbon emissions of a computation are commonly used metrics, as this is a more…
OpenMP 4.5 provides a standardised set to carry out loop vectorization. One can use simd directive to indicate that a loop should be SIMDized. As using these features should not bring too many modifications in a code and offer performance gains, we decided to test them on two real relevant…
In the context of the ADT Simon related to the Inria Project Lab (IPL) C2S@Exa dealing with High Performance Computations (HPC), a lot of efforts were made by the dtk team to develop both API and efficient back-ends for parallel sparse linear algebra. Simultaneously, Tristan Cabel modified the Fortran code…
If you ever wanted to replace some symbol in a library, in order to inspect what happens in a binary you don’t have the source code or even to inject some code, this can be done using the LD_PRELOAD trick. To use it, invoke your binary as such: $ LD_PRELOAD=somelib.so…
A new version of the prototype developed for the RApp project has been delivered on march 30th. The prototype is made of three parts, all written in HopJS: a robot simulator; an application embedded in the robot; an application located in a cloud server; The purpose of the different parts:…
CMUSphinx, where CMU stands for Carnegie Mellon University, is an open source toolkit for speech recognition. This proof of concept, aims at using speech instead of a mouse to trigger transitions within a state machine, and have a visual feedback of it.
