Start in English About the Project Project's assumptions

Project's assumptions

The general assumptions of the Project functioning (being implemented) have been presented below:

  • Support for the EGI and DEISA production systems. The EGI and DEISA systems are supported according to the rules applied in these infrastructures, with full cooperation with organizations (projects) which coordinate and develop them. The Project's infrastructure follows the changes, which occur in software and management procedures in these systems, to keep the full compatibility. Most of the resources of the system are made available to users in the framework of the mentioned grid systems. In their framework we foresee creation of the Virtual Organizations connecting Project and other European centres' resources.
  • Opening to the new grid systems. The new grid systems and the supporting software, developed either in the Project or in the independent institutions, are connected to the production e-infrastructure in the scope of existing or foreseen needs. The procedure of their testing and verification has been elaborated.
  • Separating the resources for the research. In the framework of the e-infrastructure it is possible to separate a small set of distributed resources, which then could be used for some special aims. Some number of machines have been destined for this aim, and it is possible to pass them to the interested group of users for the certain time. This procedure is used to make the resources available for the research testbeds (new grid software, experiments requiring dedicated resources, etc.), as well as for the testbeds created to test new versions of the production software and additional software connected into these systems.
  • Cooperation of the production systems. The built e-infrastructure should assure proper usage of computational power by the users, who will use many computational frameworks. The EGI and DEISA platforms are placed symmetrical in the e-infrastructure; it means that neither EGI, nor DEISA software is the base (preferred) platform. The cooperation of these frameworks assures smooth movement of the computational power between EGEE and DEISA frameworks and other types of the infrastructure. In this area the mechanisms elaborated in other projects (like D-GRID, GRIP, GIN) have been checked and introduced.
  • The effective management of resources. Due to the fact, that the hardware resources of the e-infrastructure are used in various ways (in many testbeds), we introduced the monitoring and resources management system. We elaborated the procedures of the agreement of the resources usage schedule; these procedures are based on the resources management policy of each of the Partners, which however respect the Project's arrangements. The base rule of the e-infrastructures resources' management is the openness of the resources management policy as well as its realization. The details of the resources negotiation by the groups of users (represented by VO) are realized directly between VO and centres of the resources by use of the tools which facilitate this process. The important element is collecting the resource usage data (accounting), involving also local (non grid) usage. The results of the resources' usage, supplemented with the users' opinion about the centres, are presented to the Consortium Council connected to the Project; the Council may report some remarks concerning the change of the resource policy conducted by the given centre.
  • Cooperation with the network provider. The built e-infrastructure, as an important client of the PIONEER (the network provider), should have well-defined requirements in the scope of access to the computer network; the fullfilment of these requirements is monitored. It is especially important for the part of the Project users, for whom the special links will be configured. The example of this type of application is ATLAS.
  • Support of applications' adaptation. We have organized a group, which supports the adaptation of new applications and organizes the users' environment. A set of technical and consulting services has been created; these services provide support to the users' groups on all stages of their entering into the grid environment and using it.
  • The development of the infrastructure for science. In the framework of the Project we develop the software, which will supplement in the future the set of services offered within PL-Grid for the scientists. The individual components will be chosen considering their usefulness for the users.



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