Distributed European Infrastructure for Supercomputing Applications: Difference between revisions

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==History==

The DEISA project started as DEISA1 in 2002 developing and supporting a pan-European distributed high performance computing infrastructure. The initial project was funded by the [[European Commission]] in the sixth of the [[Framework Programmes for Research and Technological Development]] (FP6) from 2004 through 2008.<ref>{{Cite web |title= Distributed European Infrastructure for supercomputing applications |work= Project funding web site |publisher= [[CORDIS]] |url= http://cordis.europa.eu/project/id/508830 |accessdate= 21 December 2023 }}</ref> The funding continued for the follow-up project DEISA2 in the Seventh Framework Programme (FP7) through 2011.<ref>{{Cite web |title= Distributed European infrastructure for supercomputing applications 2 |work= Project funding web site |publisher= [[CORDIS]] |url= http://cordis.europa.eu/project/id/222919 |accessdate= 21 December 2023 }}</ref>

<ref>{{Cite webjournal | last1=
Lederer | first1=
H. |title= DEISA2: Supporting and developing a European high-performance computing ecosystem | workjournal=

Journal of Physics: Conference Series |url= https://iopscience.iop.org/article/10.1088/1742-6596/125/1/011003 |accessdatedate= 21 December 2023 }}</ref>

2008 | volume=

125 | issue=

1 | page=

011003 | doi=

10.1088/1742-6596/125/1/011003 | bibcode=

2008JPhCS.125a1003L |url= https://iopscience.iop.org/article/10.1088/1742-6596/125/1/011003 |accessdate= 21 December 2023 }}</ref>

The DEISA infrastructure coupled eleven national supercomputing centres with a dedicated (mostly 10&nbsp;Gbit/s) network connection provided by [[GEANT2|GÉANT2]] on the European level and the [[national research and education network]]s (NRENs).

<ref>{{Cite webencyclopedia |title= DEISA supercomputing network |workencyclopedia= Britannica Science&Tech web site |url= https://www.britannica.com/topic/DEISA |accessdate= 21 December 2023 }}</ref>

DEISA was the first initiative to overcome the fragmentation of supercomputing resources in Europe. PartParts of the national supercomputing resources were provided for most challenging computational projects from all over Europe, providing access to the most advanced and most suitable supercomputer architectures available, for positively reviewed projects. Through DECI, the DEISA Extreme Computing Initiative, not only computing resources, but also advanced application enabling was provided.

==Consortium==

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==The DEISA TeraGrid Collaboration==

DEISA was the European counterpart of the US NSF funded TeraGrid project.

<ref>{{Cite webencyclopedia |title= TeraGrid supercomputing network |workencyclopedia= Britannica Science&Tech web site |url= https://www.britannica.com/topic/TeraGrid |accessdate= 23 December 2023 }}</ref>

In a collaborative effort in 2005, a dedicated trusted network connection was established between DEISA and TeraGrid, to implement a combined global file system spanning two continents. During the Supercomputing Conference 2005, supercomputing applications were carried out both in Europe and in the US with output transparently written to the unified global file system. For details see "Exploring the hyper-grid idea with grand challenge applications: the DEISA-TeraGrid interoperability demonstration".

<ref>{{Cite webbook |last1= Andrews |first1= P. |last2= Buechli |first2= M. |last3= Harkness |first3= R. |last4= Hatzky |first4= R. |last5= Jordan |first5= C. |last6= Lederer |first6= H. |last7= Niederberger |first7= R. |last8= Rimovsky |first8= A. |last9= Schott |first9= A. |last10= Soddemann |first10= T. |last11= Springel |first11= V. |title= 2006 IEEE Challenges of Large Applications in Distributed Environments |chapter=Exploring the hyper-grid idea with grand challenge applications: the DEISA-TeraGrid interoperability demonstration|urldate= https:/2006 |pages= 43–52 |doi= 10.1109/ieeexploreCLADE.ieee2006.org/document/1652053 |accessdateisbn= 21 December 20231-4244-0420-7 }}</ref>

==DEISA Publications==