Merge remote-tracking branch 'upstream/pr/303/head' into source

* upstream/pr/303/head:
  changing metadata for some people
  added dragonfly project

Signed-off-by: Robert Speck <r.speck@fz-juelich.de>

_data/people.yml

@@ -282,7 +282,7 @@ cheriere_n:
   sur_name: Cheriere
   given_name: Nathanael
   affiliation: inria
-  position: master
+  position: phd
   topics: Big Data & I/O
   email: nathanael.cheriere@ens-rennes.fr
   homepage: http://perso.eleves.ens-rennes.fr/~ncherier/
@@ -392,7 +392,7 @@ dorier_m:
   position: post_doc
   topics: Big Data & I/O
   email: mdorier@anl.gov
-  homepage: https://people.irisa.fr/Matthieu.Dorier/wiki/doku.php
+  homepage: https://dorier.github.io
 
 dreher_m:
   sur_name: Dreher
@@ -1104,8 +1104,8 @@ riedel_m:
   homepage: http://www.morrisriedel.de/
 
 ross_r:
-  sur_name: Rob
-  given_name: Ross
+  sur_name: Ross
+  given_name: Rob
   affiliation: anl
   position: permanent
   topics:

_projects/dragonfly-topology.md

@@ -0,0 +1,57 @@
+---
+layout: page_project
+title: Exploiting the Dragonfly Topology to Improve Communication Operations in MPI
+date: 2016-09-28
+updated:
+navbar: Research
+subnavbar: Projects
+project_url:
+status: running
+topics: 
+  - storage
+keywords:
+head: dorier_m
+members:
+  - cheriere_n
+  - ross_r
+  - antoniu_g
+  - ibrahim_s
+---
+
+## Research topic and goals
+
+High-radix direct network topologies such as Dragonfly have been proposed for  
+petascale and exascale supercomputers because they ensure fast interconnections  
+and reduce the cost of the network compared with traditional network topologies. 
+The design of new machines such as Theta with a Dragonfly network present an opportunity  
+to further improve the performance of distributed applications by making the algorithms  
+aware of the topology. Indeed, current algorithms do not consider the topology and thus
+lose numerous opportunities of optimization for performance that have been created by the topology. 
+This project aims to explores ways to exploit the strengths of the Dragonfly network topology
+to propose and evaluate optimized algorithms  global communication operations, such as AllGather, Scatter, etc.
+
+## Results for 2016/2017
+
+We studied and extended existing algorithms for collective communication operations and use CODES,
+an event-driven simulator, to evaluate them. The simulations show expected results for AllGather, as well as surprising ones for Scatter:  
+the naive algorithm perform oustandingly well on Dragonfly because they exploit the characteristics  
+of the routers in the network. In particular, the Scatter operation could be accelerated up 
+by a factor up to 2 times using a hardware aware algorithm. 
+
+These results have been accepted as a poster for the ACM Student Research Competition at SC 2016, and will be
+submitted at IPDPS 2017.
+
+## Visits and meetings
+
+Internship of Nathanael Cheriere at Argonne National Lab from January 2016 to June 2016, under the supervision of Matthieu Dorier and Rob Ross.
+
+## Impact and publications
+
+{% bibliography --cited --file jlesc.bib %}
+
+
+## Future plans
+
+The results will be included in a paper to be submitted at IPDPS 2017.
+
+## References