We are reporting about the rst experience using a large grid-enabled MPI-cluster and the problematic/advantage of its use for massive parallel applications. In recent years EGEE/EGI has proven to be a robust and scalable infrastructure for sequential scienti c computation, but hardly usable for parallel programming. The situation changed following the June 2010 proposal of the EGEE MPI WG (Working Group) for JDL attributes to select the slots needed for the execution and allocation of a parallel application. This recent evolution has convinced the INFN theoretical physics community to install a rst large grid-enabled MPI cluster, named Theompi, taking advantage of an experimental implementation of the granularity attributes. We describe the porting of signi cant applications in theoretical physics, executed in this new environment and taking advantage of the new grid parallel attributes.
Theompi: a large MPI cluster on the grid for Theoretical Physics / Alfieri, Roberto; G., Andronico; S., Arezzini; A., Ciampa; DE PIETRI, Roberto; DI RENZO, Francesco; A., Gianelle; S., Monforte; M., Sgaravatto. - (2011), pp. 138-139. (Intervento presentato al convegno EGI User Forum 2011 tenutosi a Vilnius (lt) nel 11-15 April 2011).
Theompi: a large MPI cluster on the grid for Theoretical Physics
ALFIERI, Roberto;DE PIETRI, Roberto;DI RENZO, Francesco;
2011-01-01
Abstract
We are reporting about the rst experience using a large grid-enabled MPI-cluster and the problematic/advantage of its use for massive parallel applications. In recent years EGEE/EGI has proven to be a robust and scalable infrastructure for sequential scienti c computation, but hardly usable for parallel programming. The situation changed following the June 2010 proposal of the EGEE MPI WG (Working Group) for JDL attributes to select the slots needed for the execution and allocation of a parallel application. This recent evolution has convinced the INFN theoretical physics community to install a rst large grid-enabled MPI cluster, named Theompi, taking advantage of an experimental implementation of the granularity attributes. We describe the porting of signi cant applications in theoretical physics, executed in this new environment and taking advantage of the new grid parallel attributes.| File | Dimensione | Formato | |
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