Les devexp 2015 ont été l’occasion pour nous de faire un atelier sur dtkDistributed, dans lignée du DreamTech: dtkDistributed. La présentation est maintenant accessible en ligne . Le tutorial proposant de développer l’algorithme PageRank se trouve sur github.
Qt provide a standard mechanism (aboutToQuit() signal) to insure that a callback is executed at the end of the QApplication event loop. This is typically used to add some cleanup code to your application. Infortunately, Qt does not provide a “aboutToRun()” if you want to execute an initializing code just…
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…
The Inria Forge is fully upgraded (OS and FusionForge) today, Tuesday June 2nd. The service will be unavailable for a few hours during that day. Hopefully, the service should be restored for 12AM. We advise you to anticipate this forge upgrade, especially if you are close to a deadline. Changes…
The BSP Model The Bulk Synchronous Parallel (BSP) is a model for designing parallel algorithms. The BSP model was developed by Leslie Valiant of Harvard University during the 1980s and published in 1990. Computation proceeds as a sequence of iterations, called supersteps. Each superstep involves a phase of parallel computations,…
Dans le cadre des DreamTech du SED, on se propose de faire une présentation un peu poussée du layer distributed de dtk qui commence à arriver à maturité. Le 1er opus de cette présentation aura lieu mercredi prochain (29 avril) de 10 à 11h30 en salle Khan 01. Nous passerons…
What is dtk? When we carry out software development in Inria research teams, recurring questions arise: “We have lots of software librairies and applications, that are all equally important but we cannot maintain them. Besides, we do not know where to add new features.” “We need a modular architecture, but…
This post will explain how to use valgrind memcheck in cmake/ctest and publish the result in jenkins. Jenkins requirements: Hudson CMake plugin and Vagrind plugin First, you have to setup cmake to use valgrind when launching tests; the valgrind jenkins plugin requires the XML output format, so you have to…
