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New 28 cores 256GB box to test novel EPR imaging algorithms

posted Jul 5, 2016, 3:30 PM by Yann Le Du   [ updated Jul 6, 2016, 12:20 PM ]

We have bought a new DELL Poweredge 630 rack server, with two Xeon E5-2690 (total of 28 cores, 56 hyperthreads) and 256 GB RAM, with 2 SSD which we set in RAID0 thanks to Btrfs. We shall use it for EPR data processing and to test our new EPR-I code based on the Pony language. Some similar racks with GPUs are planned but not yet funded.

A four to six months internship

posted Oct 30, 2013, 4:26 AM by El Afrit Mariem   [ updated Oct 30, 2013, 4:35 AM ]

Check it out.

PhD funding application to ANRT

posted May 29, 2013, 4:03 AM by Yann Le Du   [ updated May 29, 2013, 4:03 AM ]

We have applied for a PhD funding grant at the ANRT. Thanks to a new organization of our research institute, l'Institue de Chimie de Paris, we are now part of a team that links our institute to the Centre de Recherche et de Restauration des Musées de France (C2RMF), a research lab focusing on cultural heritage and hosted at the Louvre : we plan to apply our EPR imaging pipeline to the tomographic needs of the C2RMF. Our grant associates these two research labs to a private company, XtremViz, that works on an outstanding 2D and 3D image viewer called Vizua3D.

Summer internships / stages d'été 2013

posted May 29, 2013, 3:41 AM by Yann Le Du

Check it out.

Brownian coding

posted Oct 3, 2012, 4:03 PM by Yann Le Du

We shall now post some interesting codes and ideas: find those in Brownian coding.

Back from the Chebfun workshop

posted Sep 24, 2012, 6:38 AM by Yann Le Du   [ updated Sep 24, 2012, 6:44 AM ]

Yann is back from the Chebfun 2012 workshop: fantastic talks, rich discussions, great hosts. We now have many bits of knowledge to be incorporated back into our imaging pipeline. Given the attendance and wide range of interests, Chebfun project is experiencing an inflation. We are proud to be the first large scale --and yet academic--  application of the Chebfun framework, and we look forward to a fruitful collaboration with the Chebfun team.

Apart from continuing our work on applying Chebfun in every part of our imaging reconstruction pipeline, we shall now focus on three tasks:
  1. develop a robust GPU acceleration module for Chebfun;

  2. continue investigating our Radon approach for Chebfun 2D;

  3. benchmark different languages that could replace Matlab for the Chebfun core code.

Talk accepted at the 2nd Exobiology Workshop

posted Sep 13, 2012, 4:04 AM by Yann Le Du

HPU4Science will give a talk on November 12th at the 2nd Exobiology Workshop in Fréjus: Implementing a New EPR Lineshape Parameter for Organic Radicals in Carbonaceous Matter.

Our work follows the literate programming paradigm.

GTX-690 installed

posted Sep 11, 2012, 5:12 AM by Yann Le Du

We are running our codes on the newest Nvidia GPU card, the GTX-690. For the moment, we don't see any significant gains even compared to the Tesla-C1090. The arithmetic intensity for our computations in imaging is probably not high enough.

Funding for our Inflam-EPR project

posted Sep 7, 2012, 1:34 AM by Yann Le Du   [ updated Sep 7, 2012, 5:55 AM ]

University Pierre et Marie Curie (Paris 6, UPMC) is funding our Inflam-EPR MECV project. It involves teams of medical doctors, chemists and computer scientists.

This project has two goals: first, to develop a new methodology based on Electron Paramagnetic Resonance (EPR) to quantify the in vivo production of reactive oxygen species (ROS) in pathological tissues; second, to show the adequacy of such an approach for the understanding of chronic inflammatory mechanisms. Two mouse experimental models will be assessed, which differ both in the targeted organ and in the inflammatory process.

The MECV funding will allow us to demonstrate the feasibility of investigations, opening the way to more ambitious projects leading to applications in human pathology. In particular, the development of an EPRI spectrometer is already planned within the next four years for use at the HEGP hospital, and this MECV project proposal is an important step on the path to generalized use of EPR in human pathology studies.

Talk accepted at Chebfun workshop

posted Sep 7, 2012, 1:00 AM by Yann Le Du   [ updated Sep 7, 2012, 1:01 AM ]

Talk accepted at Chebfun workshop in Oxford (09/16 - 09/19): We shall present our latest work on integrating Chebyshev polynomials in our EPR imaging pipeline using the amazing Matlab Chebfun toolbox.

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